K3 Rx antenna

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K3 Rx antenna

Gary Smith-2
I connect my Rx antenna via the BNC below the SO239 outputs. I have a
sub Receiver and have the Rx on the sub and listen to the vertical
transmitting antenna on the main with my stereo headset.

There are times when I'd like to only hear the Rx antenna and not the
vertical and to this point to do that, I turn off the audio from the
main receiver & listen with the one ear to the sub Rx.

Listening to the transmit antenna with both ears I just don't use the
sub rx. The question I'd like to know is: How can I listen to the sub
Rx only with both ears? I could do it by inserting a stereo to mono
adapter in line but that's going to be bothersome quickly. Any easy &
quick way to do this?

73,

Gary
KA1J




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Re: K3 Rx antenna

n9adg
I have all of my receive antennas switchable into the sub RX or the rx input (a six by two matrix in my case) K9ay makes a box that can do this or you can build your own. K9ay has a preamp in his box so that there is no loss of level when both inputs are on the same antenna. The RX ant switch will toggle the main receiver between receive antenna(s) and the tx antenna. The diversity feature of listening on the same frequency with different antenna in each ear makes it possible to pick out stations in the sound field. On good nights it's really obvious when a station is not on this continent with one dash or dot.

Sent via iPhone

> On Jan 31, 2014, at 8:57 PM, "Gary Smith" <[hidden email]> wrote:
>
> I connect my Rx antenna via the BNC below the SO239 outputs. I have a
> sub Receiver and have the Rx on the sub and listen to the vertical
> transmitting antenna on the main with my stereo headset.
>
> There are times when I'd like to only hear the Rx antenna and not the
> vertical and to this point to do that, I turn off the audio from the
> main receiver & listen with the one ear to the sub Rx.
>
> Listening to the transmit antenna with both ears I just don't use the
> sub rx. The question I'd like to know is: How can I listen to the sub
> Rx only with both ears? I could do it by inserting a stereo to mono
> adapter in line but that's going to be bothersome quickly. Any easy &
> quick way to do this?
>
> 73,
>
> Gary
> KA1J
>
>
>
>
> ---
> This email is free from viruses and malware because avast! Antivirus protection is active.
> http://www.avast.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
> Please help support this email list: http://www.qsl.net/donate.html
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Re: K3 Rx antenna

Gary Smith-2
Hello Brian,

I was hoping there would be a way to do this selectively within the
confines of the K3 and not use something external. I found in the
last 160M contest that there were many DX I could hear on the Rx
antenna as it is "steerable" while the Inv-L picks up sounds equally
from all directions. I found I could almost completely eliminate
stateside QRM if I listened only through the Rx antenna and aimed it
towards the DX but it could only be heard in one ear.

Considering the high amount of QRM coming in on the Inv-L and the
high amount of desired signals coming in on the Rx, I needed to shut
off the noise in the Inv-L & hear with both ears, the DX on the Rx
antenna.

Funny thing for me about the diversity mode; I use it but not often
because of the signal loss when diversity is engaged. What I find I
prefer is to link the two receivers and use the sub. This allows a
better sounding signal to me and its in sync so there's no offset in
the Rx. I let my head do the "diversity" and it seems to work really
well.

About the only time I use diversity is when there is a wide split the
XIT won't reach and the DX is faint on the main antenna. Then I'll go
split find a hole in the pileup, perch there and go into diversity so
I can still hear the DX on their transmit freq till the band changes.
The twin receivers & diversity is a very cool thing.

Gary, KA1J

> I have all of my receive antennas switchable into the sub RX or the
rx input (a six by two matrix in my case) K9ay makes a box that can
do this or you can build your own. K9ay has a preamp in his box so
that there is no loss of level when both inputs are on the same
antenna. The RX ant switch will toggle the main receiver between
receive antenna(s) and the tx antenna. The diversity feature of
listening on the same frequency with different antenna in each ear
makes it possible to pick out stations in the sound field. On good
nights it's really obvious when a station is not on this continent
with one dash or dot.


>
> > On Jan 31, 2014, at 8:57 PM, "Gary Smith" <[hidden email]> wrote:
> >
> > I connect my Rx antenna via the BNC below the SO239 outputs. I have a
> > sub Receiver and have the Rx on the sub and listen to the vertical
> > transmitting antenna on the main with my stereo headset.
> >
> > There are times when I'd like to only hear the Rx antenna and not the
> > vertical and to this point to do that, I turn off the audio from the
> > main receiver & listen with the one ear to the sub Rx.
> >
> > Listening to the transmit antenna with both ears I just don't use the
> > sub rx. The question I'd like to know is: How can I listen to the sub
> > Rx only with both ears? I could do it by inserting a stereo to mono
> > adapter in line but that's going to be bothersome quickly. Any easy &
> > quick way to do this?
> >
> > 73,
> >
> > Gary
> > KA1J
> >
> >
> >
> >
> > ---
> > This email is free from viruses and malware because avast! Antivirus protection is active.
> > http://www.avast.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
> > Please help support this email list: http://www.qsl.net/donate.html
>




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Re: K3 Rx antenna

Mike K2MK
In reply to this post by Gary Smith-2
Hi Gary,

You didn't indicate if you are running split or diversity. Here's a solution if you are in diversity.

There are times that you would like the RX ANT to be steered to both your MAIN RX and SUB RX. I do that with a splitter on my RX antenna cable. One leg goes to the AUX RF BNC socket for the SUB RX and the other leg goes to the RX ANT IN BNC socket on the KXV3A board. When I want to use my RX antenna for both receivers I press the RX ANT button. I'm still in diversity but I'm using the same antenna for both ears.

73,
Mike K2MK


Gary Smith-2 wrote
I connect my Rx antenna via the BNC below the SO239 outputs. I have a
sub Receiver and have the Rx on the sub and listen to the vertical
transmitting antenna on the main with my stereo headset.

There are times when I'd like to only hear the Rx antenna and not the
vertical and to this point to do that, I turn off the audio from the
main receiver & listen with the one ear to the sub Rx.

Listening to the transmit antenna with both ears I just don't use the
sub rx. The question I'd like to know is: How can I listen to the sub
Rx only with both ears? I could do it by inserting a stereo to mono
adapter in line but that's going to be bothersome quickly. Any easy &
quick way to do this?

73,
Gary
KA1J
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Re: K3 Rx antenna

Gary Smith-2
In reply to this post by Gary Smith-2
David,

Its a Hi-Z Triangular array, it is only a rx antenna, not for
transmit. Used to be sold by Hi-Z themselves but now sold are now
sold albeit at a higher price by DXEngineering. You can read about
their antennas here: http://www.hizantennas.com There are links on
their antenna pages to DXEngineering to purchase the one of your
choice. I chose the triangular array because it offers 6 directions
of forward & of course, 6 opposite directions of null.

They have other options which may suit you better depending on your
spare pounds and QTH. Look on eham for reviews:

http://www.eham.net/reviews/detail/11548

The following link also but it reviews several of their systems:

http://www.eham.net/reviews/detail/8579

I am extremely happy with this triangular array with the K3; lower
price and very effective. Hi-Z notes they are for low band use but I
have found them a godsend on the upper bands as well for I have no
beam and use wire antennas hung in not very tall trees.

If you are looking for even better performance but only 4 directions,
their 4 square gets very high ratings. Their 8 element gives the 4
square performance but with eight directions to chose from. And...
their 8 element comes in two different varieties optimised for 80 or
160M.

73,

> Gary
>
> I am very interested in your 'steerable' antenna for 160m, would you care to
> advise what you are using?
>
> 73
>
> David
> G3UNA
>
> ----- Original Message -----
> From: "Gary Smith" <[hidden email]>
> To: <[hidden email]>
> Sent: Saturday, February 01, 2014 7:03 AM
> Subject: Re: [Elecraft] K3 Rx antenna
>
>
> > Hello Brian,
> >
> > I was hoping there would be a way to do this selectively within the
> > confines of the K3 and not use something external. I found in the
> > last 160M contest that there were many DX I could hear on the Rx
> > antenna as it is "steerable" while the Inv-L picks up sounds equally
> > from all directions. I found I could almost completely eliminate
> > stateside QRM if I listened only through the Rx antenna and aimed it
> > towards the DX but it could only be heard in one ear.
> >
> > Considering the high amount of QRM coming in on the Inv-L and the
> > high amount of desired signals coming in on the Rx, I needed to shut
> > off the noise in the Inv-L & hear with both ears, the DX on the Rx
> > antenna.
> >
> > Funny thing for me about the diversity mode; I use it but not often
> > because of the signal loss when diversity is engaged. What I find I
> > prefer is to link the two receivers and use the sub. This allows a
> > better sounding signal to me and its in sync so there's no offset in
> > the Rx. I let my head do the "diversity" and it seems to work really
> > well.
> >
> > About the only time I use diversity is when there is a wide split the
> > XIT won't reach and the DX is faint on the main antenna. Then I'll go
> > split find a hole in the pileup, perch there and go into diversity so
> > I can still hear the DX on their transmit freq till the band changes.
> > The twin receivers & diversity is a very cool thing.
> >
> > Gary, KA1J
> >
> >> I have all of my receive antennas switchable into the sub RX or the
> > rx input (a six by two matrix in my case) K9ay makes a box that can
> > do this or you can build your own. K9ay has a preamp in his box so
> > that there is no loss of level when both inputs are on the same
> > antenna. The RX ant switch will toggle the main receiver between
> > receive antenna(s) and the tx antenna. The diversity feature of
> > listening on the same frequency with different antenna in each ear
> > makes it possible to pick out stations in the sound field. On good
> > nights it's really obvious when a station is not on this continent
> > with one dash or dot.
> >
> >
> >>
> >> > On Jan 31, 2014, at 8:57 PM, "Gary Smith" <[hidden email]> wrote:
> >> >
> >> > I connect my Rx antenna via the BNC below the SO239 outputs. I have a
> >> > sub Receiver and have the Rx on the sub and listen to the vertical
> >> > transmitting antenna on the main with my stereo headset.
> >> >
> >> > There are times when I'd like to only hear the Rx antenna and not the
> >> > vertical and to this point to do that, I turn off the audio from the
> >> > main receiver & listen with the one ear to the sub Rx.
> >> >
> >> > Listening to the transmit antenna with both ears I just don't use the
> >> > sub rx. The question I'd like to know is: How can I listen to the sub
> >> > Rx only with both ears? I could do it by inserting a stereo to mono
> >> > adapter in line but that's going to be bothersome quickly. Any easy &
> >> > quick way to do this?
> >> >
> >> > 73,
> >> >
> >> > Gary
> >> > KA1J
> >> >
> >> >
> >> >
> >> >
> >> > ---
> >> > This email is free from viruses and malware because avast! Antivirus
> >> > protection is active.
> >> > http://www.avast.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
> >> > Please help support this email list: http://www.qsl.net/donate.html
> >>
> >
> >
> >
> >
> > ---
> > This email is free from viruses and malware because avast! Antivirus
> > protection is active.
> > http://www.avast.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
> > Please help support this email list: http://www.qsl.net/donate.html 
>
>
> ---
> This email is free from viruses and malware because avast! Antivirus protection is active.
> http://www.avast.com
>
>




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Re: K3 Rx antenna

Gary Smith-2
In reply to this post by Mike K2MK
Hi Mike,

What you're suggesting sounds like a good idea. I don't often use
diversity because of the dB loss and the stations I am usually trying
to work are the faintest ones out there. instead, I use the two
receivers linked on the same frequency, that gives me the best
sensitivity and I just listen in stereo.

My goal is to be able to select the option of hearing from only the
Rx antenna and nothing from the transmit antenna. I use my Rx as a
beam in that I can null out undesirable signals &/or peak the station
I am listening to. The transmit antenna hears 360 degrees and I want
to at times eliminate that. I figured with all the options on the K3
that there would be an easily selectable way to hear the Rx antenna
on both receivers just like you can hear only the Tx antenna on both
receivers. And maybe you can? I haven't figured out how to do that if
it is built in.

73,

Gary
KA1J

> Hi Gary,
>
> You didn't indicate if you are running split or diversity. Here's a solution
> if you are in diversity.
>
> There are times that you would like the RX ANT to be steered to both your
> MAIN RX and SUB RX. I do that with a splitter on my RX antenna cable. One
> leg goes to the AUX RF BNC socket for the SUB RX and the other leg goes to
> the RX ANT IN BNC socket on the KXV3A board. When I want to use my RX
> antenna for both receivers I press the RX ANT button. I'm still in diversity
> but I'm using the same antenna for both ears.
>
> 73,
> Mike K2MK
>
>
>
> Gary Smith-2 wrote
> > I connect my Rx antenna via the BNC below the SO239 outputs. I have a
> > sub Receiver and have the Rx on the sub and listen to the vertical
> > transmitting antenna on the main with my stereo headset.
> >
> > There are times when I'd like to only hear the Rx antenna and not the
> > vertical and to this point to do that, I turn off the audio from the
> > main receiver & listen with the one ear to the sub Rx.
> >
> > Listening to the transmit antenna with both ears I just don't use the
> > sub rx. The question I'd like to know is: How can I listen to the sub
> > Rx only with both ears? I could do it by inserting a stereo to mono
> > adapter in line but that's going to be bothersome quickly. Any easy &
> > quick way to do this?
> >
> > 73,
> > Gary
> > KA1J
>
>
>
>
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/K3-Rx-antenna-tp7583554p7583564.html
> Sent from the Elecraft mailing list archive at Nabble.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
> Please help support this email list: http://www.qsl.net/donate.html
>




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Re: K3 Rx antenna

Joe Subich, W4TV-4

Gary,

If you want to hear the same antenna in both ears, connect it
to the RX IN jack and press RX ANT on the Main RX.  Yes, you
will see a 3 dB "loss" due to the splitting on both receivers
but that's unavoidable *anytime* you feed a single antenna to
both receivers.

73,

    ... Joe, W4TV


On 2/1/2014 8:37 AM, Gary Smith wrote:

> Hi Mike,
>
> What you're suggesting sounds like a good idea. I don't often use
> diversity because of the dB loss and the stations I am usually trying
> to work are the faintest ones out there. instead, I use the two
> receivers linked on the same frequency, that gives me the best
> sensitivity and I just listen in stereo.
>
> My goal is to be able to select the option of hearing from only the
> Rx antenna and nothing from the transmit antenna. I use my Rx as a
> beam in that I can null out undesirable signals &/or peak the station
> I am listening to. The transmit antenna hears 360 degrees and I want
> to at times eliminate that. I figured with all the options on the K3
> that there would be an easily selectable way to hear the Rx antenna
> on both receivers just like you can hear only the Tx antenna on both
> receivers. And maybe you can? I haven't figured out how to do that if
> it is built in.
>
> 73,
>
> Gary
> KA1J
>
>> Hi Gary,
>>
>> You didn't indicate if you are running split or diversity. Here's a solution
>> if you are in diversity.
>>
>> There are times that you would like the RX ANT to be steered to both your
>> MAIN RX and SUB RX. I do that with a splitter on my RX antenna cable. One
>> leg goes to the AUX RF BNC socket for the SUB RX and the other leg goes to
>> the RX ANT IN BNC socket on the KXV3A board. When I want to use my RX
>> antenna for both receivers I press the RX ANT button. I'm still in diversity
>> but I'm using the same antenna for both ears.
>>
>> 73,
>> Mike K2MK
>>
>>
>>
>> Gary Smith-2 wrote
>>> I connect my Rx antenna via the BNC below the SO239 outputs. I have a
>>> sub Receiver and have the Rx on the sub and listen to the vertical
>>> transmitting antenna on the main with my stereo headset.
>>>
>>> There are times when I'd like to only hear the Rx antenna and not the
>>> vertical and to this point to do that, I turn off the audio from the
>>> main receiver & listen with the one ear to the sub Rx.
>>>
>>> Listening to the transmit antenna with both ears I just don't use the
>>> sub rx. The question I'd like to know is: How can I listen to the sub
>>> Rx only with both ears? I could do it by inserting a stereo to mono
>>> adapter in line but that's going to be bothersome quickly. Any easy &
>>> quick way to do this?
>>>
>>> 73,
>>> Gary
>>> KA1J
>>
>>
>>
>>
>>
>> --
>> View this message in context: http://elecraft.365791.n2.nabble.com/K3-Rx-antenna-tp7583554p7583564.html
>> Sent from the Elecraft mailing list archive at Nabble.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
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>
>
>
>
> ---
> This email is free from viruses and malware because avast! Antivirus protection is active.
> http://www.avast.com
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>
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> Please help support this email list: http://www.qsl.net/donate.html
>
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Re: K3 Rx antenna

Gary Smith-2
In reply to this post by Gary Smith-2
Hi there Paul,

Mike K2MK mentioned that & Joe, W4TV along the same line. I made up
the pieces today and did as was suggested. Indeed this is exactly
what I wanted to do with the K3 & the directional Rx antenna, mission
accomplished. Now I can null out offending stations sometimes to the
point of really not hearing them to a level that is bothersome.

There were some SOBs intentionally QRMing FT5ZM on 160 and while I
didn't work him there I was able to null some of the QRM to the point
I could hear him. On diversity I still heard the QRMers over his
signal. (What unhappy people those QRMers must be to live every day
with that defect in their thoughts, but I digress) In the absence of
intentional QRM I would have been able to have heard them marvelously
with diversity.

My concern with the dB loss is only when it comes to the faintest of
stations which is what I like to work, I like the most difficult ones
to pull out because they are the most interesting ones to me; DX, QRP
or someone with a really compromised location, that gives me the
greatest pleasure and when such signals are in the mud, 3 dB is a lot
of loss. When copying a signal that moves the meter the loss is no
problem. All these options to select what antenna configuration to
use with the K3 & its sub receiver are tools each has unique benefits
& liabilities, sometimes a different choice lets me make the Q.

Thanks to everyone who replied.

73,

Gary
KA1J

> Hi Gary,
>
> I also have the Hi-Z triangle array and K3. I use a splitter to feed
> the receive antenna to the Aux-In and RX-In ports.
>
> About your concern of the 3 db loss when using a splitter -- is this
> really a problem since you are reducing both the noise and the signal
> by 3 db? I find I stll have enough gain to hear noise, so I feel if the
> signal was above noise, I will not lose any ability to hear the signal
> when I use the splitter.
>
> 73,
> Paul - K5ESW
> Raleigh, NC
>
>
> > Hi Mike,
> >
> > What you're suggesting sounds like a good idea. I don't often use
> > diversity because of the dB loss and the stations I am usually trying
> > to work are the faintest ones out there. instead, I use the two
> > receivers linked on the same frequency, that gives me the best
> > sensitivity and I just listen in stereo.
> >
> > My goal is to be able to select the option of hearing from only the
> > Rx antenna and nothing from the transmit antenna. I use my Rx as a
> > beam in that I can null out undesirable signals &/or peak the station
> > I am listening to. The transmit antenna hears 360 degrees and I want
> > to at times eliminate that. I figured with all the options on the K3
> > that there would be an easily selectable way to hear the Rx antenna
> > on both receivers just like you can hear only the Tx antenna on both
> > receivers. And maybe you can? I haven't figured out how to do that if
> > it is built in.
> >
> > 73,
> >
> > Gary
> > KA1J
> >
> > > Hi Gary,
> > >
> > > You didn't indicate if you are running split or diversity. Here's a solution
> > > if you are in diversity.
> > >
> > > There are times that you would like the RX ANT to be steered to both your
> > > MAIN RX and SUB RX. I do that with a splitter on my RX antenna cable. One
> > > leg goes to the AUX RF BNC socket for the SUB RX and the other leg goes to
> > > the RX ANT IN BNC socket on the KXV3A board. When I want to use my RX
> > > antenna for both receivers I press the RX ANT button. I'm still in diversity
> > > but I'm using the same antenna for both ears.
> > >
> > > 73,
> > > Mike K2MK
> > >
> > >
> > >
> > > Gary Smith-2 wrote
> > > > I connect my Rx antenna via the BNC below the SO239 outputs. I have a
> > > > sub Receiver and have the Rx on the sub and listen to the vertical
> > > > transmitting antenna on the main with my stereo headset.
> > > >
> > > > There are times when I'd like to only hear the Rx antenna and not the
> > > > vertical and to this point to do that, I turn off the audio from the
> > > > main receiver & listen with the one ear to the sub Rx.
> > > >
> > > > Listening to the transmit antenna with both ears I just don't use the
> > > > sub rx. The question I'd like to know is: How can I listen to the sub
> > > > Rx only with both ears? I could do it by inserting a stereo to mono
> > > > adapter in line but that's going to be bothersome quickly. Any easy &
> > > > quick way to do this?
> > > >
> > > > 73,
> > > > Gary
> > > > KA1J
> > >
> > >
> > >
> > >
> > >
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Re: K3 Rx antenna

Bill Frantz
The question, particularly on the lower bands is signal to noise
ratio and not absolute receive strength. While connecting a
receive antennas to two radios will involve a 3db loss, that
loss will be to both the signal and the noise. The signal to
noise ratio will be unchanged.

Cheers - Bill, AE6JV

On 2/2/14 at 11:05 PM, [hidden email] (Gary Smith) wrote:

>My concern with the dB loss is only when it comes to the
>faintest of stations which is what I like to work, I like the
>most difficult ones to pull out because they are the most
>interesting ones to me; DX, QRP or someone with a really
>compromised location, that gives me the greatest pleasure and
>when such signals are in the mud, 3 dB is a lot of loss. When
>copying a signal that moves the meter the loss is no problem.
>All these options to select what antenna configuration to use
>with the K3 & its sub receiver are tools each has unique
>benefits & liabilities, sometimes a different choice lets me
>make the Q.

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