Elecraft

FIELD DAY PREP

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KENT TRIMBLE

FIELD DAY PREP

Have any of you used Ameritron's "Receiver Input Protector" model
TRP-150? I find no reviews on eHam.

73,

Kent K9ZTV
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Bob McGraw - K4TAX

Re: FIELD DAY PREP

With stations running 100 watts or less and reasonable antenna
separation, I've found no reason for a Receiver Input Protector.
Although, it might be a good idea to circumvent a "screw up" by an
operator. I've seen some mighty strange things done by knowledgeable
hams at Field Day.

73

Bob, K4TAX

On 6/14/2019 10:07 AM, KENT TRIMBLE wrote:
> Have any of you used Ameritron's "Receiver Input Protector" model
> TRP-150? I find no reviews on eHam.
>
> 73,
>
> Kent K9ZTV
>

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donovanf

Re: FIELD DAY PREP

We use a dozen K3 transceivers at W3AO, we've never had a K3
failure despite running as many as four K3s on the same band
(CW SSB Digital and GOTA). The four K3s on each band do not
interfere with each other either.

Our secrets to success:

- same band antennas are horizontally polarized and oriented exactly
end-to-end. Inverted V dipole and verticals are allowed. 100 feet
of tip-to-tip spacing appears to be adequate, although we use much more.

- We install W3NQN bandpass filters on every K3 to avoid overload
from signals from nearby antennas for other bands.

Its not widely known that K3 transceivers have built in bandpass
filters. As far as I'm aware their performance characteristics have
never been published, hence our preference to also also use external
bandpass filters.

73
Frank
W3LPL

----- Original Message -----

From: "Bob McGraw K4TAX" <[hidden email]>
To: [hidden email]
Sent: Friday, June 14, 2019 3:24:01 PM
Subject: Re: [Elecraft] FIELD DAY PREP

With stations running 100 watts or less and reasonable antenna
separation, I've found no reason for a Receiver Input Protector.
Although, it might be a good idea to circumvent a "screw up" by an
operator. I've seen some mighty strange things done by knowledgeable
hams at Field Day.

73

Bob, K4TAX

On 6/14/2019 10:07 AM, KENT TRIMBLE wrote:
> Have any of you used Ameritron's "Receiver Input Protector" model
> TRP-150? I find no reviews on eHam.
>
> 73,
>
> Kent K9ZTV
>

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donovanf

Re: FIELD DAY PREP

oops... I meant to say:

Inverted V dipole and verticals are NOT allowed at W3AO

73
Frank
W3LPL

----- Original Message -----

From: [hidden email]
To: [hidden email]
Sent: Friday, June 14, 2019 3:40:43 PM
Subject: Re: [Elecraft] FIELD DAY PREP

We use a dozen K3 transceivers at W3AO, we've never had a K3
failure despite running as many as four K3s on the same band
(CW SSB Digital and GOTA). The four K3s on each band do not
interfere with each other either.

Our secrets to success:

- same band antennas are horizontally polarized and oriented exactly
end-to-end. Inverted V dipole and verticals are allowed. 100 feet
of tip-to-tip spacing appears to be adequate, although we use much more.

- We install W3NQN bandpass filters on every K3 to avoid overload
from signals from nearby antennas for other bands.

Its not widely known that K3 transceivers have built in bandpass
filters. As far as I'm aware their performance characteristics have
never been published, hence our preference to also also use external
bandpass filters.

73
Frank
W3LPL

----- Original Message -----

From: "Bob McGraw K4TAX" <[hidden email]>
To: [hidden email]
Sent: Friday, June 14, 2019 3:24:01 PM
Subject: Re: [Elecraft] FIELD DAY PREP

With stations running 100 watts or less and reasonable antenna
separation, I've found no reason for a Receiver Input Protector.
Although, it might be a good idea to circumvent a "screw up" by an
operator. I've seen some mighty strange things done by knowledgeable
hams at Field Day.

73

Bob, K4TAX

On 6/14/2019 10:07 AM, KENT TRIMBLE wrote:
> Have any of you used Ameritron's "Receiver Input Protector" model
> TRP-150? I find no reviews on eHam.
>
> 73,
>
> Kent K9ZTV
>

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KENT TRIMBLE

Re: FIELD DAY PREP

In reply to this post by Bob McGraw - K4TAX

Good morning, Bob . . .

We normally use 75-100 feet separation between dipoles aligned
end-to-end, and have had no problems over the years. However, last year
we were limited to less than 50-feet separation and I noticed the
Carrier Operated Relay (COR) in my K3 was kicking on occasionally from
the SSB station with which we (CW) were obliged to share a trailer.

I tried a TRP-150 for the first time on the air this morning and a
station in Michigan detected no clicks, truncating, or other aberrations.

We'll see.

73,

Kent K9ZTV

On 6/14/2019 10:24 AM, Bob McGraw K4TAX wrote:

> With stations running 100 watts or less and reasonable antenna
> separation, I've found no reason for a Receiver Input Protector.
> Although, it might be a good idea to circumvent a "screw up" by an
> operator. I've seen some mighty strange things done by knowledgeable
> hams at Field Day.
>
> 73
>
> Bob, K4TAX
>
>
> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote:
>> Have any of you used Ameritron's "Receiver Input Protector" model
>> TRP-150? I find no reviews on eHam.
>>
>> 73,
>>
>> Kent K9ZTV
>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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Bob McGraw - K4TAX

Re: FIELD DAY PREP

In reply to this post by donovanf

Neither should G5RV antennas.

Bob, K4TAX

Sent from my iPhone

> On Jun 14, 2019, at 10:44 AM, [hidden email] wrote:
>
> oops... I meant to say:
>
>
> Inverted V dipole and verticals are NOT allowed at W3AO
>
> 73
> Frank
> W3LPL
>
> ----- Original Message -----
>
> From: [hidden email]
> To: [hidden email]
> Sent: Friday, June 14, 2019 3:40:43 PM
> Subject: Re: [Elecraft] FIELD DAY PREP
>
> We use a dozen K3 transceivers at W3AO, we've never had a K3
> failure despite running as many as four K3s on the same band
> (CW SSB Digital and GOTA). The four K3s on each band do not
> interfere with each other either.
>
>
>
> Our secrets to success:
>
>
> - same band antennas are horizontally polarized and oriented exactly
> end-to-end. Inverted V dipole and verticals are allowed. 100 feet
> of tip-to-tip spacing appears to be adequate, although we use much more.
>
>
> - We install W3NQN bandpass filters on every K3 to avoid overload
> from signals from nearby antennas for other bands.
>
>
> Its not widely known that K3 transceivers have built in bandpass
> filters. As far as I'm aware their performance characteristics have
> never been published, hence our preference to also also use external
> bandpass filters.
>
>
> 73
> Frank
> W3LPL
>
>
>
>
>
> ----- Original Message -----
>
> From: "Bob McGraw K4TAX" <[hidden email]>
> To: [hidden email]
> Sent: Friday, June 14, 2019 3:24:01 PM
> Subject: Re: [Elecraft] FIELD DAY PREP
>
> With stations running 100 watts or less and reasonable antenna
> separation, I've found no reason for a Receiver Input Protector.
> Although, it might be a good idea to circumvent a "screw up" by an
> operator. I've seen some mighty strange things done by knowledgeable
> hams at Field Day.
>
> 73
>
> Bob, K4TAX
>
>
>> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote:
>> Have any of you used Ameritron's "Receiver Input Protector" model
>> TRP-150? I find no reviews on eHam.
>>
>> 73,
>>
>> Kent K9ZTV
>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
> ______________________________________________________________
> Elecraft mailing list
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> Post: mailto:[hidden email]
>
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> Message delivered to [hidden email]
>
> ______________________________________________________________
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>
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>

donovanf

Re: FIELD DAY PREP

When running multiple HF transmitters simultaneously its wise to:
- avoid multi-band antennas, or
- use external bandpass filters, or even better
- avoid multi-band antennas and use bandpass filters

73
Frank
W3LPL

----- Original Message -----

From: "Bob McGraw K4TAX" <[hidden email]>
To: [hidden email]
Cc: [hidden email]
Sent: Friday, June 14, 2019 5:36:21 PM
Subject: Re: [Elecraft] FIELD DAY PREP

Neither should G5RV antennas.

Bob, K4TAX

Sent from my iPhone

Bob McGraw - K4TAX

Re: FIELD DAY PREP

In reply to this post by KENT TRIMBLE

So was the issue the result of poor shielding and connectors of cables inside the trailer or actual antenna separation? That would do it.

And could the SSB station be pushing the power and ALC and compression thus likely causing distortion and splatter? That would do it.

One of my major pet gripes for net control operators and contest operators is the fact they believe turning things up a bit with the thinking they will be heard a bit better When in fact they are making their signal more difficult to copy. If their station sounds good during SSB rag chew QSO's the the same settings should also be good for contests, Field Day, and when a net control. The mentality of turning things up a wee bit is just pure B. S.

Bob, K4TAX

Sent from my iPhone

> On Jun 14, 2019, at 10:52 AM, KENT TRIMBLE <[hidden email]> wrote:
>
> Good morning, Bob . . .
>
> We normally use 75-100 feet separation between dipoles aligned end-to-end, and have had no problems over the years. However, last year we were limited to less than 50-feet separation and I noticed the Carrier Operated Relay (COR) in my K3 was kicking on occasionally from the SSB station with which we (CW) were obliged to share a trailer.
>
> I tried a TRP-150 for the first time on the air this morning and a station in Michigan detected no clicks, truncating, or other aberrations.
>
> We'll see.
>
> 73,
>
> Kent K9ZTV
>
>
>
>
>
>> On 6/14/2019 10:24 AM, Bob McGraw K4TAX wrote:
>> With stations running 100 watts or less and reasonable antenna separation, I've found no reason for a Receiver Input Protector. Although, it might be a good idea to circumvent a "screw up" by an operator. I've seen some mighty strange things done by knowledgeable hams at Field Day.
>>
>> 73
>>
>> Bob, K4TAX
>>
>>
>>> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote:
>>> Have any of you used Ameritron's "Receiver Input Protector" model TRP-150? I find no reviews on eHam.
>>>
>>> 73,
>>>
>>> Kent K9ZTV
>>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>> ---
>> This email has been checked for viruses by AVG.
>> https://www.avg.com
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
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> Message delivered to [hidden email]

Don Wilhelm

Re: FIELD DAY PREP

In reply to this post by Bob McGraw - K4TAX

Or any other multiband antennas in a multi-transmitter situation.

73,
Don W3FPR

On 6/14/2019 1:36 PM, Bob McGraw K4TAX wrote:

> Neither should G5RV antennas.
>
> Bob, K4TAX
>
>
> Sent from my iPhone
>
>> On Jun 14, 2019, at 10:44 AM, [hidden email] wrote:
>>
>> oops... I meant to say:
>>
>>
>> Inverted V dipole and verticals are NOT allowed at W3AO
>>
>> 73
>> Frank
>> W3LPL
>>
>> ----- Original Message -----
>>
>> From: [hidden email]
>> To: [hidden email]
>> Sent: Friday, June 14, 2019 3:40:43 PM
>> Subject: Re: [Elecraft] FIELD DAY PREP
>>
>> We use a dozen K3 transceivers at W3AO, we've never had a K3
>> failure despite running as many as four K3s on the same band
>> (CW SSB Digital and GOTA). The four K3s on each band do not
>> interfere with each other either.
>>
>>
>>
>> Our secrets to success:
>>
>>
>> - same band antennas are horizontally polarized and oriented exactly
>> end-to-end. Inverted V dipole and verticals are allowed. 100 feet
>> of tip-to-tip spacing appears to be adequate, although we use much more.
>>
>>
>> - We install W3NQN bandpass filters on every K3 to avoid overload
>> from signals from nearby antennas for other bands.
>>
>>
>> Its not widely known that K3 transceivers have built in bandpass
>> filters. As far as I'm aware their performance characteristics have
>> never been published, hence our preference to also also use external
>> bandpass filters.
>>
>>
>> 73
>> Frank
>> W3LPL
>>
>>
>>
>>
>>
>> ----- Original Message -----
>>
>> From: "Bob McGraw K4TAX" <[hidden email]>
>> To: [hidden email]
>> Sent: Friday, June 14, 2019 3:24:01 PM
>> Subject: Re: [Elecraft] FIELD DAY PREP
>>
>> With stations running 100 watts or less and reasonable antenna
>> separation, I've found no reason for a Receiver Input Protector.
>> Although, it might be a good idea to circumvent a "screw up" by an
>> operator. I've seen some mighty strange things done by knowledgeable
>> hams at Field Day.
>>
>> 73
>>
>> Bob, K4TAX
>>
>>
>>> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote:
>>> Have any of you used Ameritron's "Receiver Input Protector" model
>>> TRP-150? I find no reviews on eHam.
>>>
>>> 73,
>>>
>>> Kent K9ZTV
>>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>>
>
> ______________________________________________________________
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>

David Gilbert

Re: FIELD DAY PREP

In reply to this post by Bob McGraw - K4TAX

A few years ago I was working NAQP SSB and came across this guy who was
really loud but had such an overdriven signal nobody could copy him. He
kept calling CQ but nobody answered. I finally threw my callsign out
there and when he came back I told him he needed to back off on the mic
gain if he wanted to make any contacts. It took three steps of backing
down his gain to get him to reasonable copy. He was over 10 db weaker
but suddenly started running stations.

Cranking the knob to 11 is, as you say, totally counterproductive.

73,
Dave AB7E

On 6/14/2019 10:52 AM, Bob McGraw K4TAX wrote:
> One of my major pet gripes for net control operators and contest operators is the fact they believe turning things up a bit with the thinking they will be heard a bit better When in fact they are making their signal more difficult to copy. If their station sounds good during SSB rag chew QSO's the the same settings should also be good for contests, Field Day, and when a net control. The mentality of turning things up a wee bit is just pure B. S.
>
> Bob, K4TAX
>
>

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Bob McGraw - K4TAX

Re: FIELD DAY PREP

Reminds me of a true story of my dear grandmother. I came into the
house one day while she was on the telephone. She was almost hollering
at the top of her voice. After she finished, I asked "grandmother why
were you hollering?"    She replied "I was talking long distance".

Seems as hams do the more often than not today. If they didn't hear you
the first time......then holler at the mike the next time.   That's sure
to get their attention.   If one hollers loud enough, neither will need
a radio.

73

Bob, K4TAX

On 6/14/2019 1:17 PM, David Gilbert wrote:

>
> A few years ago I was working NAQP SSB and came across this guy who
> was really loud but had such an overdriven signal nobody could copy
> him. He kept calling CQ but nobody answered. I finally threw my
> callsign out there and when he came back I told him he needed to back
> off on the mic gain if he wanted to make any contacts. It took three
> steps of backing down his gain to get him to reasonable copy. He was
> over 10 db weaker but suddenly started running stations.
>
> Cranking the knob to 11 is, as you say, totally counterproductive.
>
> 73,
> Dave AB7E
>
>
>
> On 6/14/2019 10:52 AM, Bob McGraw K4TAX wrote:
>> One of my major pet gripes for net control operators and contest
>> operators is the fact they believe turning things up a bit with the
>> thinking they will be heard a bit better When in fact they are
>> making their signal more difficult to copy. If their station sounds
>> good during SSB rag chew QSO's the the same settings should also be
>> good for contests, Field Day, and when a net control. The mentality
>> of turning things up a wee bit is just pure B. S.
>>
>> Bob, K4TAX
>>
>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

Tox

Re: FIELD DAY PREP

In reply to this post by David Gilbert

I've started sending discreet emails to ft8 ops who are overdriving
and including screenshots, trying to make clear "it isn't the power,
you're overdriving". There isn't a well-known public resource to
provide that kind of feedback today. I've considered setting up an sdr
dongle and toolchain for 20m as a resource for stations in the San
Jose area.

(Ideally, I'd set up a second one at someone else's place so I can
clean up my own output!)

Scott
AD6YT

On Fri, Jun 14, 2019 at 11:18 AM David Gilbert <[hidden email]> wrote:

>
>
> A few years ago I was working NAQP SSB and came across this guy who was
> really loud but had such an overdriven signal nobody could copy him. He
> kept calling CQ but nobody answered. I finally threw my callsign out
> there and when he came back I told him he needed to back off on the mic
> gain if he wanted to make any contacts. It took three steps of backing
> down his gain to get him to reasonable copy. He was over 10 db weaker
> but suddenly started running stations.
>
> Cranking the knob to 11 is, as you say, totally counterproductive.
>
> 73,
> Dave AB7E
>
>
>
> On 6/14/2019 10:52 AM, Bob McGraw K4TAX wrote:
> > One of my major pet gripes for net control operators and contest operators is the fact they believe turning things up a bit with the thinking they will be heard a bit better When in fact they are making their signal more difficult to copy. If their station sounds good during SSB rag chew QSO's the the same settings should also be good for contests, Field Day, and when a net control. The mentality of turning things up a wee bit is just pure B. S.
> >
> > Bob, K4TAX
> >
> >
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

--
Scott Small
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Tox

Re: FIELD DAY PREP

In reply to this post by Bob McGraw - K4TAX

Trying to remember, but wasn't that a legitimate issue with early
analog telephony? I don't recall if, pre SS7, the line amps had
automatic gain adjustment. Enough hops, didn't the signal start to
attenuate?

Scott
AD6YT

On Fri, Jun 14, 2019 at 11:28 AM Bob McGraw K4TAX <[hidden email]> wrote:

>
> Reminds me of a true story of my dear grandmother. I came into the
> house one day while she was on the telephone. She was almost hollering
> at the top of her voice. After she finished, I asked "grandmother why
> were you hollering?" She replied "I was talking long distance".
>
> Seems as hams do the more often than not today. If they didn't hear you
> the first time......then holler at the mike the next time. That's sure
> to get their attention. If one hollers loud enough, neither will need
> a radio.
>
> 73
>
> Bob, K4TAX
>
>
>
> On 6/14/2019 1:17 PM, David Gilbert wrote:
> >
> > A few years ago I was working NAQP SSB and came across this guy who
> > was really loud but had such an overdriven signal nobody could copy
> > him. He kept calling CQ but nobody answered. I finally threw my
> > callsign out there and when he came back I told him he needed to back
> > off on the mic gain if he wanted to make any contacts. It took three
> > steps of backing down his gain to get him to reasonable copy. He was
> > over 10 db weaker but suddenly started running stations.
> >
> > Cranking the knob to 11 is, as you say, totally counterproductive.
> >
> > 73,
> > Dave AB7E
> >
> >
> >
> > On 6/14/2019 10:52 AM, Bob McGraw K4TAX wrote:
> >> One of my major pet gripes for net control operators and contest
> >> operators is the fact they believe turning things up a bit with the
> >> thinking they will be heard a bit better When in fact they are
> >> making their signal more difficult to copy. If their station sounds
> >> good during SSB rag chew QSO's the the same settings should also be
> >> good for contests, Field Day, and when a net control. The mentality
> >> of turning things up a wee bit is just pure B. S.
> >>
> >> Bob, K4TAX
> >>
> >>
> >
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:[hidden email]
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to [hidden email]
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

Elecraft mailing list

Re: FIELD DAY PREP

Scott, my recollection was that SS7 only affected the call setup but not the transmission characteristics. It has been a while ago but that is what I remember.

I believe that the REAL problem was that the system slowly evolved from a battery and ground to a pretty complicated analog/digital transmission system. Those that started with the old common battery telephones JUST KNEW that you had to talk louder on a long distance call.

Very 73 - Mike - K9JRI

> On Jun 14, 2019, at 2:54 PM, Tox <[hidden email]> wrote:
>
> Trying to remember, but wasn't that a legitimate issue with early
> analog telephony? I don't recall if, pre SS7, the line amps had
> automatic gain adjustment. Enough hops, didn't the signal start to
> attenuate?
>
> Scott
> AD6YT
>
> On Fri, Jun 14, 2019 at 11:28 AM Bob McGraw K4TAX <[hidden email]> wrote:
>>
>> Reminds me of a true story of my dear grandmother. I came into the
>> house one day while she was on the telephone. She was almost hollering
>> at the top of her voice. After she finished, I asked "grandmother why
>> were you hollering?" She replied "I was talking long distance".
>>
>> Seems as hams do the more often than not today. If they didn't hear you
>> the first time......then holler at the mike the next time. That's sure
>> to get their attention. If one hollers loud enough, neither will need
>> a radio.
>>
>> 73
>>
>> Bob, K4TAX
>>
>>
>>
>> On 6/14/2019 1:17 PM, David Gilbert wrote:
>>>
>>> A few years ago I was working NAQP SSB and came across this guy who
>>> was really loud but had such an overdriven signal nobody could copy
>>> him. He kept calling CQ but nobody answered. I finally threw my
>>> callsign out there and when he came back I told him he needed to back
>>> off on the mic gain if he wanted to make any contacts. It took three
>>> steps of backing down his gain to get him to reasonable copy. He was
>>> over 10 db weaker but suddenly started running stations.
>>>
>>> Cranking the knob to 11 is, as you say, totally counterproductive.
>>>
>>> 73,
>>> Dave AB7E
>>>
>>>
>>>
>>> On 6/14/2019 10:52 AM, Bob McGraw K4TAX wrote:
>>>> One of my major pet gripes for net control operators and contest
>>>> operators is the fact they believe turning things up a bit with the
>>>> thinking they will be heard a bit better When in fact they are
>>>> making their signal more difficult to copy. If their station sounds
>>>> good during SSB rag chew QSO's the the same settings should also be
>>>> good for contests, Field Day, and when a net control. The mentality
>>>> of turning things up a wee bit is just pure B. S.
>>>>
>>>> Bob, K4TAX
>>>>
>>>>
>>>
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:[hidden email]
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to [hidden email]
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>
>
>
> --
> Scott Small
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

Ed Pflueger

Re: FIELD DAY PREP

In reply to this post by donovanf

We use Ladder line fed dipoles. The dipole is 134ft long and the feed lines
(400 ohm Ladder Line) are cut at 96ft. one of our antennas ladder line
needs an extra length and I think it is cut at 66 ft. extra. We place the
antennas far enough apart but are in a straight line. The ladder lines are
terminated into DXEngineering baluns and with less than ten feet of coax
from the balun to the rigs. We have had three rigs on the same band but
different modes and no interference and have been doing it this way for
years. We gave up on beams, G5RV's, and verticals long ago. Our call is
W4NJA here in Paducah, Ky. and normally operate 3A with a GOTO Station
normally on 6 meters. If you work us on CW you will be talking to my K3
with all the K3S stuff in it. The tuner works great on all bands.

Long term forecasts looks like maybe some rain here in far W. Kentucky.

Ed... AB4IQ

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of
[hidden email]
Sent: Friday, June 14, 2019 12:50 PM
To: [hidden email]
Subject: Re: [Elecraft] FIELD DAY PREP

When running multiple HF transmitters simultaneously its wise to:
- avoid multi-band antennas, or
- use external bandpass filters, or even better
- avoid multi-band antennas and use bandpass filters

73
Frank
W3LPL

----- Original Message -----

From: "Bob McGraw K4TAX" <[hidden email]>
To: [hidden email]
Cc: [hidden email]
Sent: Friday, June 14, 2019 5:36:21 PM
Subject: Re: [Elecraft] FIELD DAY PREP

Neither should G5RV antennas.

Bob, K4TAX

Sent from my iPhone

> On Jun 14, 2019, at 10:44 AM, [hidden email] wrote:
>
> oops... I meant to say:
>
>
> Inverted V dipole and verticals are NOT allowed at W3AO
>
> 73
> Frank
> W3LPL
>
> ----- Original Message -----
>
> From: [hidden email]
> To: [hidden email]
> Sent: Friday, June 14, 2019 3:40:43 PM
> Subject: Re: [Elecraft] FIELD DAY PREP
>
> We use a dozen K3 transceivers at W3AO, we've never had a K3 failure
> despite running as many as four K3s on the same band (CW SSB Digital
> and GOTA). The four K3s on each band do not interfere with each other
> either.
>
>
>
> Our secrets to success:
>
>
> - same band antennas are horizontally polarized and oriented exactly
> end-to-end. Inverted V dipole and verticals are allowed. 100 feet of
> tip-to-tip spacing appears to be adequate, although we use much more.
>
>
> - We install W3NQN bandpass filters on every K3 to avoid overload from
> signals from nearby antennas for other bands.
>
>
> Its not widely known that K3 transceivers have built in bandpass
> filters. As far as I'm aware their performance characteristics have
> never been published, hence our preference to also also use external
> bandpass filters.
>
>
> 73
> Frank
> W3LPL
>
>
>
>
>
> ----- Original Message -----
>
> From: "Bob McGraw K4TAX" <[hidden email]>
> To: [hidden email]
> Sent: Friday, June 14, 2019 3:24:01 PM
> Subject: Re: [Elecraft] FIELD DAY PREP
>
> With stations running 100 watts or less and reasonable antenna
> separation, I've found no reason for a Receiver Input Protector.
> Although, it might be a good idea to circumvent a "screw up" by an
> operator. I've seen some mighty strange things done by knowledgeable
> hams at Field Day.
>
> 73
>
> Bob, K4TAX
>
>
>> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote:
>> Have any of you used Ameritron's "Receiver Input Protector" model
>> TRP-150? I find no reviews on eHam.
>>
>> 73,
>>
>> Kent K9ZTV
>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Bob McGraw - K4TAX

Re: FIELD DAY PREP

Absolutely the best! And the previous scores substantiate such.

I've been using a 134 ft center fed dipole with balanced feed for 50+
years at my various QTH's. I've yet to find any antenna that performs
better and always consistently without effects of wind, rain, snow and ice.

73

Bob, K4TAX

On 6/14/2019 6:47 PM, AB4IQ wrote:

> We use Ladder line fed dipoles. The dipole is 134ft long and the feed lines
> (400 ohm Ladder Line) are cut at 96ft. one of our antennas ladder line
> needs an extra length and I think it is cut at 66 ft. extra. We place the
> antennas far enough apart but are in a straight line. The ladder lines are
> terminated into DXEngineering baluns and with less than ten feet of coax
> from the balun to the rigs. We have had three rigs on the same band but
> different modes and no interference and have been doing it this way for
> years. We gave up on beams, G5RV's, and verticals long ago. Our call is
> W4NJA here in Paducah, Ky. and normally operate 3A with a GOTO Station
> normally on 6 meters. If you work us on CW you will be talking to my K3
> with all the K3S stuff in it. The tuner works great on all bands.
>
> Long term forecasts looks like maybe some rain here in far W. Kentucky.
>
> Ed... AB4IQ
>
> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of
> [hidden email]
> Sent: Friday, June 14, 2019 12:50 PM
> To: [hidden email]
> Subject: Re: [Elecraft] FIELD DAY PREP
>
> When running multiple HF transmitters simultaneously its wise to:
> - avoid multi-band antennas, or
> - use external bandpass filters, or even better
> - avoid multi-band antennas and use bandpass filters
>
>
> 73
> Frank
> W3LPL
>
> ----- Original Message -----
>
> From: "Bob McGraw K4TAX" <[hidden email]>
> To: [hidden email]
> Cc: [hidden email]
> Sent: Friday, June 14, 2019 5:36:21 PM
> Subject: Re: [Elecraft] FIELD DAY PREP
>
> Neither should G5RV antennas.
>
> Bob, K4TAX
>
>
> Sent from my iPhone
>
>> On Jun 14, 2019, at 10:44 AM, [hidden email] wrote:
>>
>> oops... I meant to say:
>>
>>
>> Inverted V dipole and verticals are NOT allowed at W3AO
>>
>> 73
>> Frank
>> W3LPL
>>
>> ----- Original Message -----
>>
>> From: [hidden email]
>> To: [hidden email]
>> Sent: Friday, June 14, 2019 3:40:43 PM
>> Subject: Re: [Elecraft] FIELD DAY PREP
>>
>> We use a dozen K3 transceivers at W3AO, we've never had a K3 failure
>> despite running as many as four K3s on the same band (CW SSB Digital
>> and GOTA). The four K3s on each band do not interfere with each other
>> either.
>>
>>
>>
>> Our secrets to success:
>>
>>
>> - same band antennas are horizontally polarized and oriented exactly
>> end-to-end. Inverted V dipole and verticals are allowed. 100 feet of
>> tip-to-tip spacing appears to be adequate, although we use much more.
>>
>>
>> - We install W3NQN bandpass filters on every K3 to avoid overload from
>> signals from nearby antennas for other bands.
>>
>>
>> Its not widely known that K3 transceivers have built in bandpass
>> filters. As far as I'm aware their performance characteristics have
>> never been published, hence our preference to also also use external
>> bandpass filters.
>>
>>
>> 73
>> Frank
>> W3LPL
>>
>>
>>
>>
>>
>> ----- Original Message -----
>>
>> From: "Bob McGraw K4TAX" <[hidden email]>
>> To: [hidden email]
>> Sent: Friday, June 14, 2019 3:24:01 PM
>> Subject: Re: [Elecraft] FIELD DAY PREP
>>
>> With stations running 100 watts or less and reasonable antenna
>> separation, I've found no reason for a Receiver Input Protector.
>> Although, it might be a good idea to circumvent a "screw up" by an
>> operator. I've seen some mighty strange things done by knowledgeable
>> hams at Field Day.
>>
>> 73
>>
>> Bob, K4TAX
>>
>>
>>> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote:
>>> Have any of you used Ameritron's "Receiver Input Protector" model
>>> TRP-150? I find no reviews on eHam.
>>>
>>> 73,
>>>
>>> Kent K9ZTV
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

Ed Pflueger

Re: FIELD DAY PREP

Bob I wonder if your mosquitoes are bigger than ours?

Ed..

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of Bob McGraw K4TAX
Sent: Friday, June 14, 2019 6:54 PM
To: [hidden email]
Subject: Re: [Elecraft] FIELD DAY PREP

Absolutely the best! And the previous scores substantiate such.

I've been using a 134 ft center fed dipole with balanced feed for 50+ years at my various QTH's. I've yet to find any antenna that performs better and always consistently without effects of wind, rain, snow and ice.

73

Bob, K4TAX

On 6/14/2019 6:47 PM, AB4IQ wrote:

> We use Ladder line fed dipoles. The dipole is 134ft long and the feed
> lines
> (400 ohm Ladder Line) are cut at 96ft. one of our antennas ladder
> line needs an extra length and I think it is cut at 66 ft. extra. We
> place the antennas far enough apart but are in a straight line. The
> ladder lines are terminated into DXEngineering baluns and with less
> than ten feet of coax from the balun to the rigs. We have had three
> rigs on the same band but different modes and no interference and have
> been doing it this way for years. We gave up on beams, G5RV's, and
> verticals long ago. Our call is W4NJA here in Paducah, Ky. and
> normally operate 3A with a GOTO Station normally on 6 meters. If you
> work us on CW you will be talking to my K3 with all the K3S stuff in it. The tuner works great on all bands.
>
> Long term forecasts looks like maybe some rain here in far W. Kentucky.
>
> Ed... AB4IQ
>
> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of
> [hidden email]
> Sent: Friday, June 14, 2019 12:50 PM
> To: [hidden email]
> Subject: Re: [Elecraft] FIELD DAY PREP
>
> When running multiple HF transmitters simultaneously its wise to:
> - avoid multi-band antennas, or
> - use external bandpass filters, or even better
> - avoid multi-band antennas and use bandpass filters
>
>
> 73
> Frank
> W3LPL
>
> ----- Original Message -----
>
> From: "Bob McGraw K4TAX" <[hidden email]>
> To: [hidden email]
> Cc: [hidden email]
> Sent: Friday, June 14, 2019 5:36:21 PM
> Subject: Re: [Elecraft] FIELD DAY PREP
>
> Neither should G5RV antennas.
>
> Bob, K4TAX
>
>
> Sent from my iPhone
>
>> On Jun 14, 2019, at 10:44 AM, [hidden email] wrote:
>>
>> oops... I meant to say:
>>
>>
>> Inverted V dipole and verticals are NOT allowed at W3AO
>>
>> 73
>> Frank
>> W3LPL
>>
>> ----- Original Message -----
>>
>> From: [hidden email]
>> To: [hidden email]
>> Sent: Friday, June 14, 2019 3:40:43 PM
>> Subject: Re: [Elecraft] FIELD DAY PREP
>>
>> We use a dozen K3 transceivers at W3AO, we've never had a K3 failure
>> despite running as many as four K3s on the same band (CW SSB Digital
>> and GOTA). The four K3s on each band do not interfere with each other
>> either.
>>
>>
>>
>> Our secrets to success:
>>
>>
>> - same band antennas are horizontally polarized and oriented exactly
>> end-to-end. Inverted V dipole and verticals are allowed. 100 feet of
>> tip-to-tip spacing appears to be adequate, although we use much more.
>>
>>
>> - We install W3NQN bandpass filters on every K3 to avoid overload
>> from signals from nearby antennas for other bands.
>>
>>
>> Its not widely known that K3 transceivers have built in bandpass
>> filters. As far as I'm aware their performance characteristics have
>> never been published, hence our preference to also also use external
>> bandpass filters.
>>
>>
>> 73
>> Frank
>> W3LPL
>>
>>
>>
>>
>>
>> ----- Original Message -----
>>
>> From: "Bob McGraw K4TAX" <[hidden email]>
>> To: [hidden email]
>> Sent: Friday, June 14, 2019 3:24:01 PM
>> Subject: Re: [Elecraft] FIELD DAY PREP
>>
>> With stations running 100 watts or less and reasonable antenna
>> separation, I've found no reason for a Receiver Input Protector.
>> Although, it might be a good idea to circumvent a "screw up" by an
>> operator. I've seen some mighty strange things done by knowledgeable
>> hams at Field Day.
>>
>> 73
>>
>> Bob, K4TAX
>>
>>
>>> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote:
>>> Have any of you used Ameritron's "Receiver Input Protector" model
>>> TRP-150? I find no reviews on eHam.
>>>
>>> 73,
>>>
>>> Kent K9ZTV
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net Please help support this
>> email list: http://www.qsl.net/donate.html Message delivered to
>> [hidden email]
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net Please help support this
>> email list: http://www.qsl.net/donate.html Message delivered to
>> [hidden email]
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net Please help support this
>> email list: http://www.qsl.net/donate.html Message delivered to
>> [hidden email]
>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net Please help support this email
> list: http://www.qsl.net/donate.html Message delivered to
> [hidden email]
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net Please help support this email
> list: http://www.qsl.net/donate.html Message delivered to
> [hidden email]
>

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Rob Campbell

Re: FIELD DAY PREP

In reply to this post by Tox

Scott,

You may want to take a look at http://www.websdr.org/
There are other similar resources out there also like airspy servers
https://airspy.com/directory/
They even allow you to make recordings of your signals. It's a great
resource for hearing/seeing your signal at remote locations.

--
Rob Campbell
KG6HUM

On Fri, Jun 14, 2019, 11:55 AM Tox <[hidden email]> wrote:

> I've started sending discreet emails to ft8 ops who are overdriving
> and including screenshots, trying to make clear "it isn't the power,
> you're overdriving". There isn't a well-known public resource to
> provide that kind of feedback today. I've considered setting up an sdr
> dongle and toolchain for 20m as a resource for stations in the San
> Jose area.
>
> (Ideally, I'd set up a second one at someone else's place so I can
> clean up my own output!)
>
> Scott
> AD6YT
>
> On Fri, Jun 14, 2019 at 11:18 AM David Gilbert <[hidden email]>
> wrote:
> >
> >
> > A few years ago I was working NAQP SSB and came across this guy who was
> > really loud but had such an overdriven signal nobody could copy him. He
> > kept calling CQ but nobody answered. I finally threw my callsign out
> > there and when he came back I told him he needed to back off on the mic
> > gain if he wanted to make any contacts. It took three steps of backing
> > down his gain to get him to reasonable copy. He was over 10 db weaker
> > but suddenly started running stations.
> >
> > Cranking the knob to 11 is, as you say, totally counterproductive.
> >
> > 73,
> > Dave AB7E
> >
> >
> >
> > On 6/14/2019 10:52 AM, Bob McGraw K4TAX wrote:
> > > One of my major pet gripes for net control operators and contest
> operators is the fact they believe turning things up a bit with the
> thinking they will be heard a bit better When in fact they are making
> their signal more difficult to copy. If their station sounds good during
> SSB rag chew QSO's the the same settings should also be good for contests,
> Field Day, and when a net control. The mentality of turning things up a
> wee bit is just pure B. S.
> > >
> > > Bob, K4TAX
> > >
> > >
> >
> > ______________________________________________________________
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>
>
> --
> Scott Small
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Vic Rosenthal

Re: FIELD DAY PREP

In reply to this post by Bob McGraw - K4TAX

One of the worst FD problems I’ve experienced was a Japanese transceiver (I’ve honestly forgotten the brand) in the SSB tent that transmitted a wideband hiss whenever the PTT was closed. We couldn’t operate CW on the same band even though there was no problem caused by his SSB signal.

Victor 4X6GP

> On 14 Jun 2019, at 20:52, Bob McGraw K4TAX <[hidden email]> wrote:
>
> So was the issue the result of poor shielding and connectors of cables inside the trailer or actual antenna separation? That would do it.
>
> And could the SSB station be pushing the power and ALC and compression thus likely causing distortion and splatter? That would do it.
>
> One of my major pet gripes for net control operators and contest operators is the fact they believe turning things up a bit with the thinking they will be heard a bit better When in fact they are making their signal more difficult to copy. If their station sounds good during SSB rag chew QSO's the the same settings should also be good for contests, Field Day, and when a net control. The mentality of turning things up a wee bit is just pure B. S.
>
> Bob, K4TAX
>
>
> Sent from my iPhone
>
>> On Jun 14, 2019, at 10:52 AM, KENT TRIMBLE <[hidden email]> wrote:
>>
>> Good morning, Bob . . .
>>
>> We normally use 75-100 feet separation between dipoles aligned end-to-end, and have had no problems over the years. However, last year we were limited to less than 50-feet separation and I noticed the Carrier Operated Relay (COR) in my K3 was kicking on occasionally from the SSB station with which we (CW) were obliged to share a trailer.
>>
>> I tried a TRP-150 for the first time on the air this morning and a station in Michigan detected no clicks, truncating, or other aberrations.
>>
>> We'll see.
>>
>> 73,
>>
>> Kent K9ZTV
>>
>>
>>
>>
>>
>>> On 6/14/2019 10:24 AM, Bob McGraw K4TAX wrote:
>>> With stations running 100 watts or less and reasonable antenna separation, I've found no reason for a Receiver Input Protector. Although, it might be a good idea to circumvent a "screw up" by an operator. I've seen some mighty strange things done by knowledgeable hams at Field Day.
>>>
>>> 73
>>>
>>> Bob, K4TAX
>>>
>>>
>>>> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote:
>>>> Have any of you used Ameritron's "Receiver Input Protector" model TRP-150? I find no reviews on eHam.
>>>>
>>>> 73,
>>>>
>>>> Kent K9ZTV
>>>>
>>>
>>> ______________________________________________________________
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>>> https://www.avg.com
>>
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>
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kevinr@coho.net

Re: FIELD DAY PREP

In reply to this post by Ed Pflueger

Over the years I have been bitten by some tenacious flying insects. The
tiniest are the no-see-ums. They will drive you crazy. The largest
were in Arkansas. I swear their mosquitoes were as large as small
sparrows and could take a pint of blood at each involuntary donation.
But the largest swarms were a little north of Marquette, Iowa. My late
wife and I were touring the area near where I grew up when we visited
Effigy Mounds National Monument. She wanted to rest in the high
humidity of a July afternoon. I pointed to the cloud about 100 yards
away and told her we had to keep in front of it. She, life long native
of Washington County Oregon, had no idea what I meant. Stubborn Swedish
blood wanted to make her own mind and donate it. I advised her she
would be eaten alive and kept walking the trail. A few minutes later she
caught up to me and kept her opinion to herself. We got to the parking
lot and left the park without comment.

Kevin. KD5ONS

-

On 6/14/19 4:58 PM, AB4IQ wrote:

> Bob I wonder if your mosquitoes are bigger than ours?
>
> Ed..
>
> -----Original Message-----
> From: [hidden email] [mailto:[hidden email]] On Behalf Of Bob McGraw K4TAX
> Sent: Friday, June 14, 2019 6:54 PM
> To: [hidden email]
> Subject: Re: [Elecraft] FIELD DAY PREP
>
> Absolutely the best! And the previous scores substantiate such.
>
> I've been using a 134 ft center fed dipole with balanced feed for 50+ years at my various QTH's. I've yet to find any antenna that performs better and always consistently without effects of wind, rain, snow and ice.
>
> 73
>
> Bob, K4TAX
>
> On 6/14/2019 6:47 PM, AB4IQ wrote:
>> We use Ladder line fed dipoles. The dipole is 134ft long and the feed
>> lines
>> (400 ohm Ladder Line) are cut at 96ft. one of our antennas ladder
>> line needs an extra length and I think it is cut at 66 ft. extra. We
>> place the antennas far enough apart but are in a straight line. The
>> ladder lines are terminated into DXEngineering baluns and with less
>> than ten feet of coax from the balun to the rigs. We have had three
>> rigs on the same band but different modes and no interference and have
>> been doing it this way for years. We gave up on beams, G5RV's, and
>> verticals long ago. Our call is W4NJA here in Paducah, Ky. and
>> normally operate 3A with a GOTO Station normally on 6 meters. If you
>> work us on CW you will be talking to my K3 with all the K3S stuff in it. The tuner works great on all bands.
>>
>> Long term forecasts looks like maybe some rain here in far W. Kentucky.
>>
>> Ed... AB4IQ
>>
>> -----Original Message-----
>> From: [hidden email]
>> [mailto:[hidden email]] On Behalf Of
>> [hidden email]
>> Sent: Friday, June 14, 2019 12:50 PM
>> To: [hidden email]
>> Subject: Re: [Elecraft] FIELD DAY PREP
>>
>> When running multiple HF transmitters simultaneously its wise to:
>> - avoid multi-band antennas, or
>> - use external bandpass filters, or even better
>> - avoid multi-band antennas and use bandpass filters
>>
>>
>> 73
>> Frank
>> W3LPL
>>
>> ----- Original Message -----
>>
>> From: "Bob McGraw K4TAX" <[hidden email]>
>> To: [hidden email]
>> Cc: [hidden email]
>> Sent: Friday, June 14, 2019 5:36:21 PM
>> Subject: Re: [Elecraft] FIELD DAY PREP
>>
>> Neither should G5RV antennas.
>>
>> Bob, K4TAX
>>
>>
>> Sent from my iPhone
>>
>>> On Jun 14, 2019, at 10:44 AM, [hidden email] wrote:
>>>
>>> oops... I meant to say:
>>>
>>>
>>> Inverted V dipole and verticals are NOT allowed at W3AO
>>>
>>> 73
>>> Frank
>>> W3LPL
>>>
>>> ----- Original Message -----
>>>
>>> From: [hidden email]
>>> To: [hidden email]
>>> Sent: Friday, June 14, 2019 3:40:43 PM
>>> Subject: Re: [Elecraft] FIELD DAY PREP
>>>
>>> We use a dozen K3 transceivers at W3AO, we've never had a K3 failure
>>> despite running as many as four K3s on the same band (CW SSB Digital
>>> and GOTA). The four K3s on each band do not interfere with each other
>>> either.
>>>
>>>
>>>
>>> Our secrets to success:
>>>
>>>
>>> - same band antennas are horizontally polarized and oriented exactly
>>> end-to-end. Inverted V dipole and verticals are allowed. 100 feet of
>>> tip-to-tip spacing appears to be adequate, although we use much more.
>>>
>>>
>>> - We install W3NQN bandpass filters on every K3 to avoid overload
>>> from signals from nearby antennas for other bands.
>>>
>>>
>>> Its not widely known that K3 transceivers have built in bandpass
>>> filters. As far as I'm aware their performance characteristics have
>>> never been published, hence our preference to also also use external
>>> bandpass filters.
>>>
>>>
>>> 73
>>> Frank
>>> W3LPL
>>>
>>>
>>>
>>>
>>>
>>> ----- Original Message -----
>>>
>>> From: "Bob McGraw K4TAX" <[hidden email]>
>>> To: [hidden email]
>>> Sent: Friday, June 14, 2019 3:24:01 PM
>>> Subject: Re: [Elecraft] FIELD DAY PREP
>>>
>>> With stations running 100 watts or less and reasonable antenna
>>> separation, I've found no reason for a Receiver Input Protector.
>>> Although, it might be a good idea to circumvent a "screw up" by an
>>> operator. I've seen some mighty strange things done by knowledgeable
>>> hams at Field Day.
>>>
>>> 73
>>>
>>> Bob, K4TAX
>>>
>>>
>>>> On 6/14/2019 10:07 AM, KENT TRIMBLE wrote:
>>>> Have any of you used Ameritron's "Receiver Input Protector" model
>>>> TRP-150? I find no reviews on eHam.
>>>>
>>>> 73,
>>>>
>>>> Kent K9ZTV
>>>>
>>> ______________________________________________________________
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>>> [hidden email]
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>>>
>> ______________________________________________________________
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