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K3 Auto antenna switching

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DBellW6AQ

K3 Auto antenna switching

I have two 80 meter antennas. Is it possible to program the band data
output on the K3 for 80 meters # 1 and # 2? I couldn't find an answer to this
in the manual.

73, Dave
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Don Wilhelm-4

Re: K3 Auto antenna switching

Dave,

The band data (when decoded) will allow you to connect both of your 80
meter antennas to the K3 - one to ANT1 and the other to ANT2 (assuming
you have the KAT3 installed). Your external antenna switching relay
system (working from the band data decode) is responsible for connecting
the correct 80 meter antenna to ANT1 and the other one to ANT2. The
relay system should connect both of them when you are on 80 meters.

Then you use the K3 ANT button to switch between ANT1 and ANT2.

The same system can be used to handle two antennas on any one band. It
is all in the way you set up your band decoder and your antenna
switching relay system - there are many possibilities, and will vary
from one installation to another.

73,
Don W3FPR

On 8/24/2011 2:29 PM, [hidden email] wrote:

> I have two 80 meter antennas. Is it possible to program the band data
> output on the K3 for 80 meters # 1 and # 2? I couldn't find an answer to this
> in the manual.
>
> 73, Dave
> ______________________________________________________________
> 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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Oliver Dröse

Re: K3 Auto antenna switching

In reply to this post by DBellW6AQ

Hi Dave,

unfortunately not, it's just one BCD code per band.

73, Olli - DH8BQA

----- Original Message -----
From: <[hidden email]>
To: <[hidden email]>
Cc: <[hidden email]>
Sent: Wednesday, August 24, 2011 8:29 PM
Subject: [Elecraft] K3 Auto antenna switching

>I have two 80 meter antennas. Is it possible to program the band data
> output on the K3 for 80 meters # 1 and # 2? I couldn't find an answer to
> this
> in the manual.
>
> 73, Dave

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Guy, K2AV

Re: K3 Auto antenna switching

I would really like an external signal that tells whether ANT1 or ANT2 is
selected. Any way to do that? 73, Guy

On Wed, Aug 24, 2011 at 7:28 PM, Oliver Dröse <[hidden email]> wrote:

> Hi Dave,
>
> unfortunately not, it's just one BCD code per band.
>
> 73, Olli - DH8BQA
>
>
>
> ----- Original Message -----
> From: <[hidden email]>
> To: <[hidden email]>
> Cc: <[hidden email]>
> Sent: Wednesday, August 24, 2011 8:29 PM
> Subject: [Elecraft] K3 Auto antenna switching
>
>
> >I have two 80 meter antennas. Is it possible to program the band data
> > output on the K3 for 80 meters # 1 and # 2? I couldn't find an answer
> to
> > this
> > in the manual.
> >
> > 73, Dave
>
> ______________________________________________________________
> 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
>

Joe Subich, W4TV-4

Re: K3 Auto antenna switching

Guy,

DigOut 1 is a per-band/per-antenna output. The user can program it
On for one antenna and off for the other ...

73,

... Joe, W4TV

On 8/25/2011 4:04 AM, Guy Olinger K2AV wrote:

> I would really like an external signal that tells whether ANT1 or ANT2 is
> selected. Any way to do that? 73, Guy
>
> On Wed, Aug 24, 2011 at 7:28 PM, Oliver Dröse<[hidden email]> wrote:
>
>> Hi Dave,
>>
>> unfortunately not, it's just one BCD code per band.
>>
>> 73, Olli - DH8BQA
>>
>>
>>
>> ----- Original Message -----
>> From:<[hidden email]>
>> To:<[hidden email]>
>> Cc:<[hidden email]>
>> Sent: Wednesday, August 24, 2011 8:29 PM
>> Subject: [Elecraft] K3 Auto antenna switching
>>
>>
>>> I have two 80 meter antennas. Is it possible to program the band data
>>> output on the K3 for 80 meters # 1 and # 2? I couldn't find an answer
>> to
>>> this
>>> in the manual.
>>>
>>> 73, Dave
>>
>> ______________________________________________________________
>> 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
>>
> ______________________________________________________________
> 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
>

Cady, Fred

Re: K3 Auto antenna switching

In reply to this post by Guy, K2AV

Hi Guy and all,
You could "kind of" do this with the DIGOUT1 signal from the ACC connector. It can be programmed OFF (floating, open-drain output, you need a pull up if you want a high) or ON (pulled down to ground).
The Elecraft Owner's manual describes it on page 55 and here is what the KE7X K3 book says:
(Figure 7 16.) This output signal is a general-purpose, open-drain output that may be programmed (OFF = floating, ON = pulled down to ground) on a per-band and a per-antenna basis (if the KAT3 ATU is installed). For example, you might use this feature to turn on the PR6 six meter preamp only when the six meter band and the six meter antenna are selected. To program DIGOUT1, tune the K3 Main receiver to the desired band with the selected antenna and go to CONFIG:DIGOUT1 and set it to ON. The maximum sinking current is 250 mA and the maximum load voltage is 25 VDC.

So, "kind of" means you could program DIGOUT1 to be ON (pulled low) when you are on 80 and have ANT2 (for example) selected. For any other combination of band/ant DIGOUT1 would be floating (or pulled up). This would work if you are using an external band decoder to select antennas and you simply want to activate another switch or relay to switch in one of two 80 meter antennas.

Cheers and 73,
Fred KE7X

Fred Cady
fcady at ieee dot org
"The Elecraft K3: Design, Configuration, and Operation"
www.ke7x.com

> -----Original Message-----
> From: [hidden email] [mailto:elecraft-
> [hidden email]] On Behalf Of Guy Olinger K2AV
> Sent: Thursday, August 25, 2011 2:05 AM
> To: Oliver Dröse
> Cc: [hidden email]; [hidden email]; [hidden email]
> Subject: Re: [Elecraft] K3 Auto antenna switching
>
> I would really like an external signal that tells whether ANT1 or ANT2
> is
> selected. Any way to do that? 73, Guy
>
> On Wed, Aug 24, 2011 at 7:28 PM, Oliver Dröse <[hidden email]> wrote:
>
> > Hi Dave,
> >
> > unfortunately not, it's just one BCD code per band.
> >
> > 73, Olli - DH8BQA
> >
> >
> >
> > ----- Original Message -----
> > From: <[hidden email]>
> > To: <[hidden email]>
> > Cc: <[hidden email]>
> > Sent: Wednesday, August 24, 2011 8:29 PM
> > Subject: [Elecraft] K3 Auto antenna switching
> >
> >
> > >I have two 80 meter antennas. Is it possible to program the band
> data
> > > output on the K3 for 80 meters # 1 and # 2? I couldn't find an
> answer
> > to
> > > this
> > > in the manual.
> > >
> > > 73, Dave
> >
> > ______________________________________________________________
> > 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
> >
> ______________________________________________________________
> 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

Guy, K2AV

Re: K3 Auto antenna switching

Joe & Fred,

Hmm, I was somehow under the impression that was "needed for something", but
reading it all again from scratch, that is the digout0 which apparently only
works in relation to some transverter function. Thanks all for the info.
73, Guy.

On Thu, Aug 25, 2011 at 10:57 AM, Cady, Fred <[hidden email]> wrote:

> Hi Guy and all,
> You could "kind of" do this with the DIGOUT1 signal from the ACC connector.
> It can be programmed OFF (floating, open-drain output, you need a pull up if
> you want a high) or ON (pulled down to ground).
> The Elecraft Owner's manual describes it on page 55 and here is what the
> KE7X K3 book says:
> (Figure 7 16.) This output signal is a general-purpose, open-drain output
> that may be programmed (OFF = floating, ON = pulled down to ground) on a
> per-band and a per-antenna basis (if the KAT3 ATU is installed). For
> example, you might use this feature to turn on the PR6 six meter preamp only
> when the six meter band and the six meter antenna are selected. To program
> DIGOUT1, tune the K3 Main receiver to the desired band with the selected
> antenna and go to CONFIG:DIGOUT1 and set it to ON. The maximum sinking
> current is 250 mA and the maximum load voltage is 25 VDC.
>
> So, "kind of" means you could program DIGOUT1 to be ON (pulled low) when
> you are on 80 and have ANT2 (for example) selected. For any other
> combination of band/ant DIGOUT1 would be floating (or pulled up). This would
> work if you are using an external band decoder to select antennas and you
> simply want to activate another switch or relay to switch in one of two 80
> meter antennas.
>
> Cheers and 73,
> Fred KE7X
>
>
> Fred Cady
> fcady at ieee dot org
> "The Elecraft K3: Design, Configuration, and Operation"
> www.ke7x.com
>
> > -----Original Message-----
> > From: [hidden email] [mailto:elecraft-
> > [hidden email]] On Behalf Of Guy Olinger K2AV
> > Sent: Thursday, August 25, 2011 2:05 AM
> > To: Oliver Dröse
> > Cc: [hidden email]; [hidden email]; [hidden email]
> > Subject: Re: [Elecraft] K3 Auto antenna switching
> >
> > I would really like an external signal that tells whether ANT1 or ANT2
> > is
> > selected. Any way to do that? 73, Guy
> >
> > On Wed, Aug 24, 2011 at 7:28 PM, Oliver Dröse <[hidden email]> wrote:
> >
> > > Hi Dave,
> > >
> > > unfortunately not, it's just one BCD code per band.
> > >
> > > 73, Olli - DH8BQA
> > >
> > >
> > >
> > > ----- Original Message -----
> > > From: <[hidden email]>
> > > To: <[hidden email]>
> > > Cc: <[hidden email]>
> > > Sent: Wednesday, August 24, 2011 8:29 PM
> > > Subject: [Elecraft] K3 Auto antenna switching
> > >
> > >
> > > >I have two 80 meter antennas. Is it possible to program the band
> > data
> > > > output on the K3 for 80 meters # 1 and # 2? I couldn't find an
> > answer
> > > to
> > > > this
> > > > in the manual.
> > > >
> > > > 73, Dave
> > >
> > > ______________________________________________________________
> > > 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
> > >
> > ______________________________________________________________
> > 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
>

Joe Subich, W4TV-4

Re: K3 Auto antenna switching

The only "official" use right now is for turning the PR-6 on/off on
six meters.

73,

... Joe, W4TV

On 8/25/2011 2:02 PM, Guy Olinger K2AV wrote:

> Joe& Fred,
>
> Hmm, I was somehow under the impression that was "needed for something", but
> reading it all again from scratch, that is the digout0 which apparently only
> works in relation to some transverter function. Thanks all for the info.
> 73, Guy.
>
> On Thu, Aug 25, 2011 at 10:57 AM, Cady, Fred<[hidden email]> wrote:
>
>> Hi Guy and all,
>> You could "kind of" do this with the DIGOUT1 signal from the ACC connector.
>> It can be programmed OFF (floating, open-drain output, you need a pull up if
>> you want a high) or ON (pulled down to ground).
>> The Elecraft Owner's manual describes it on page 55 and here is what the
>> KE7X K3 book says:
>> (Figure 7 16.) This output signal is a general-purpose, open-drain output
>> that may be programmed (OFF = floating, ON = pulled down to ground) on a
>> per-band and a per-antenna basis (if the KAT3 ATU is installed). For
>> example, you might use this feature to turn on the PR6 six meter preamp only
>> when the six meter band and the six meter antenna are selected. To program
>> DIGOUT1, tune the K3 Main receiver to the desired band with the selected
>> antenna and go to CONFIG:DIGOUT1 and set it to ON. The maximum sinking
>> current is 250 mA and the maximum load voltage is 25 VDC.
>>
>> So, "kind of" means you could program DIGOUT1 to be ON (pulled low) when
>> you are on 80 and have ANT2 (for example) selected. For any other
>> combination of band/ant DIGOUT1 would be floating (or pulled up). This would
>> work if you are using an external band decoder to select antennas and you
>> simply want to activate another switch or relay to switch in one of two 80
>> meter antennas.
>>
>> Cheers and 73,
>> Fred KE7X
>>
>>
>> Fred Cady
>> fcady at ieee dot org
>> "The Elecraft K3: Design, Configuration, and Operation"
>> www.ke7x.com
>>
>>> -----Original Message-----
>>> From: [hidden email] [mailto:elecraft-
>>> [hidden email]] On Behalf Of Guy Olinger K2AV
>>> Sent: Thursday, August 25, 2011 2:05 AM
>>> To: Oliver Dröse
>>> Cc: [hidden email]; [hidden email]; [hidden email]
>>> Subject: Re: [Elecraft] K3 Auto antenna switching
>>>
>>> I would really like an external signal that tells whether ANT1 or ANT2
>>> is
>>> selected. Any way to do that? 73, Guy
>>>
>>> On Wed, Aug 24, 2011 at 7:28 PM, Oliver Dröse<[hidden email]> wrote:
>>>
>>>> Hi Dave,
>>>>
>>>> unfortunately not, it's just one BCD code per band.
>>>>
>>>> 73, Olli - DH8BQA
>>>>
>>>>
>>>>
>>>> ----- Original Message -----
>>>> From:<[hidden email]>
>>>> To:<[hidden email]>
>>>> Cc:<[hidden email]>
>>>> Sent: Wednesday, August 24, 2011 8:29 PM
>>>> Subject: [Elecraft] K3 Auto antenna switching
>>>>
>>>>
>>>>> I have two 80 meter antennas. Is it possible to program the band
>>> data
>>>>> output on the K3 for 80 meters # 1 and # 2? I couldn't find an
>>> answer
>>>> to
>>>>> this
>>>>> in the manual.
>>>>>
>>>>> 73, Dave
>>>>
>>>> ______________________________________________________________
>>>> 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
>>>>
>>> ______________________________________________________________
>>> 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
>>
> ______________________________________________________________
> 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
>

Guy, K2AV

Re: K3 Auto antenna switching

You speaking of digout0 or digout1?

On Thu, Aug 25, 2011 at 2:10 PM, Joe Subich, W4TV <[hidden email]> wrote:

>
> The only "official" use right now is for turning the PR-6 on/off on
> six meters.
>
> 73,
>
> ... Joe, W4TV
>
>
>
> On 8/25/2011 2:02 PM, Guy Olinger K2AV wrote:
>
>> Joe& Fred,
>>
>> Hmm, I was somehow under the impression that was "needed for something",
>> but
>> reading it all again from scratch, that is the digout0 which apparently
>> only
>> works in relation to some transverter function. Thanks all for the info.
>> 73, Guy.
>>
>> On Thu, Aug 25, 2011 at 10:57 AM, Cady, Fred<[hidden email]>
>> wrote:
>>
>> Hi Guy and all,
>>> You could "kind of" do this with the DIGOUT1 signal from the ACC
>>> connector.
>>> It can be programmed OFF (floating, open-drain output, you need a pull up
>>> if
>>> you want a high) or ON (pulled down to ground).
>>> The Elecraft Owner's manual describes it on page 55 and here is what the
>>> KE7X K3 book says:
>>> (Figure 7 16.) This output signal is a general-purpose, open-drain output
>>> that may be programmed (OFF = floating, ON = pulled down to ground) on a
>>> per-band and a per-antenna basis (if the KAT3 ATU is installed). For
>>> example, you might use this feature to turn on the PR6 six meter preamp
>>> only
>>> when the six meter band and the six meter antenna are selected. To
>>> program
>>> DIGOUT1, tune the K3 Main receiver to the desired band with the selected
>>> antenna and go to CONFIG:DIGOUT1 and set it to ON. The maximum sinking
>>> current is 250 mA and the maximum load voltage is 25 VDC.
>>>
>>> So, "kind of" means you could program DIGOUT1 to be ON (pulled low) when
>>> you are on 80 and have ANT2 (for example) selected. For any other
>>> combination of band/ant DIGOUT1 would be floating (or pulled up). This
>>> would
>>> work if you are using an external band decoder to select antennas and you
>>> simply want to activate another switch or relay to switch in one of two
>>> 80
>>> meter antennas.
>>>
>>> Cheers and 73,
>>> Fred KE7X
>>>
>>>
>>> Fred Cady
>>> fcady at ieee dot org
>>> "The Elecraft K3: Design, Configuration, and Operation"
>>> www.ke7x.com
>>>
>>> -----Original Message-----
>>>> From: [hidden email].**net<[hidden email]>[mailto:
>>>> elecraft-
>>>> [hidden email]] On Behalf Of Guy Olinger K2AV
>>>> Sent: Thursday, August 25, 2011 2:05 AM
>>>> To: Oliver Dröse
>>>> Cc: [hidden email]; [hidden email]; [hidden email]
>>>> Subject: Re: [Elecraft] K3 Auto antenna switching
>>>>
>>>> I would really like an external signal that tells whether ANT1 or ANT2
>>>> is
>>>> selected. Any way to do that? 73, Guy
>>>>
>>>> On Wed, Aug 24, 2011 at 7:28 PM, Oliver Dröse<[hidden email]> wrote:
>>>>
>>>> Hi Dave,
>>>>>
>>>>> unfortunately not, it's just one BCD code per band.
>>>>>
>>>>> 73, Olli - DH8BQA
>>>>>
>>>>>
>>>>>
>>>>> ----- Original Message -----
>>>>> From:<[hidden email]>
>>>>> To:<[hidden email]>
>>>>> Cc:<[hidden email]>
>>>>> Sent: Wednesday, August 24, 2011 8:29 PM
>>>>> Subject: [Elecraft] K3 Auto antenna switching
>>>>>
>>>>>
>>>>> I have two 80 meter antennas. Is it possible to program the band
>>>>>>
>>>>> data
>>>>
>>>>> output on the K3 for 80 meters # 1 and # 2? I couldn't find an
>>>>>>
>>>>> answer
>>>>
>>>>> to
>>>>>
>>>>>> this
>>>>>> in the manual.
>>>>>>
>>>>>> 73, Dave
>>>>>>
>>>>>
>>>>> ______________________________**______________________________**__
>>>>> Elecraft mailing list
>>>>> Home: http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.qth.net/mailman/listinfo/elecraft>
>>>>> Help: http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm>
>>>>> Post: mailto:[hidden email].**net <[hidden email]>
>>>>>
>>>>> This list hosted by: http://www.qsl.net
>>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>>
>>>>> ______________________________**______________________________**__
>>>> Elecraft mailing list
>>>> Home: http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.qth.net/mailman/listinfo/elecraft>
>>>> Help: http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm>
>>>> Post: mailto:[hidden email].**net <[hidden email]>
>>>>
>>>> This list hosted by: http://www.qsl.net
>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>>
>>>
>>> ______________________________**______________________________**__
>> Elecraft mailing list
>> Home: http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.qth.net/mailman/listinfo/elecraft>
>> Help: http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm>
>> Post: mailto:[hidden email].**net <[hidden email]>
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>>

Cady, Fred

Re: K3 Auto antenna switching

I'm speaking DIGOUT1.

________________________________

From: [hidden email] [mailto:[hidden email]] On Behalf Of Guy Olinger K2AV
Sent: Thursday, August 25, 2011 12:24 PM
To: Joe Subich, W4TV
Cc: Cady, Fred; [hidden email]; [hidden email]; [hidden email]
Subject: Re: [Elecraft] K3 Auto antenna switching

You speaking of digout0 or digout1?

On Thu, Aug 25, 2011 at 2:10 PM, Joe Subich, W4TV <[hidden email]> wrote:

The only "official" use right now is for turning the PR-6 on/off on
six meters.

73,

... Joe, W4TV

On 8/25/2011 2:02 PM, Guy Olinger K2AV wrote:

Joe& Fred,

Hmm, I was somehow under the impression that was "needed for something", but
reading it all again from scratch, that is the digout0 which apparently only
works in relation to some transverter function. Thanks all for the info.
73, Guy.

On Thu, Aug 25, 2011 at 10:57 AM, Cady, Fred<[hidden email]> wrote:

Hi Guy and all,
You could "kind of" do this with the DIGOUT1 signal from the ACC connector.
It can be programmed OFF (floating, open-drain output, you need a pull up if
you want a high) or ON (pulled down to ground).
The Elecraft Owner's manual describes it on page 55 and here is what the
KE7X K3 book says:
(Figure 7 16.) This output signal is a general-purpose, open-drain output
that may be programmed (OFF = floating, ON = pulled down to ground) on a
per-band and a per-antenna basis (if the KAT3 ATU is installed). For
example, you might use this feature to turn on the PR6 six meter preamp only
when the six meter band and the six meter antenna are selected. To program
DIGOUT1, tune the K3 Main receiver to the desired band with the selected
antenna and go to CONFIG:DIGOUT1 and set it to ON. The maximum sinking
current is 250 mA and the maximum load voltage is 25 VDC.

So, "kind of" means you could program DIGOUT1 to be ON (pulled low) when
you are on 80 and have ANT2 (for example) selected. For any other
combination of band/ant DIGOUT1 would be floating (or pulled up). This would
work if you are using an external band decoder to select antennas and you
simply want to activate another switch or relay to switch in one of two 80
meter antennas.

Cheers and 73,
Fred KE7X

Fred Cady
fcady at ieee dot org
"The Elecraft K3: Design, Configuration, and Operation"
www.ke7x.com

-----Original Message-----
From: [hidden email] <mailto:[hidden email]> [mailto:elecraft-
[hidden email]] On Behalf Of Guy Olinger K2AV
Sent: Thursday, August 25, 2011 2:05 AM
To: Oliver Dröse
Cc: [hidden email]; [hidden email]; [hidden email]
Subject: Re: [Elecraft] K3 Auto antenna switching

I would really like an external signal that tells whether ANT1 or ANT2
is
selected. Any way to do that? 73, Guy

On Wed, Aug 24, 2011 at 7:28 PM, Oliver Dröse<[hidden email]> wrote:

Hi Dave,

unfortunately not, it's just one BCD code per band.

73, Olli - DH8BQA

----- Original Message -----
From:<[hidden email]>
To:<[hidden email]>
Cc:<[hidden email]>
Sent: Wednesday, August 24, 2011 8:29 PM
Subject: [Elecraft] K3 Auto antenna switching

I have two 80 meter antennas. Is it possible to program the band

data

output on the K3 for 80 meters # 1 and # 2? I couldn't find an

answer

to

this
in the manual.

73, Dave

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Guy, K2AV

Re: K3 Auto antenna switching

In reply to this post by Guy, K2AV

Gotcha.

Is what goes on with DIGOUT0 "firmwired" in the firmware, or is that
available somehow with some sneaky procedure? TWO signals I could work, one
of them via software command to K3, would be simply splendiferous and get
rid of ugly relay logic board. But I know I'm reaching here...

73, Guy.

On Thu, Aug 25, 2011 at 3:48 PM, Joe Subich, W4TV <[hidden email]> wrote:

>
> DIGOUT1 - see the "PR6 Owners Manual"
>
> 73,
>
> ... Joe, W4TV
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Guy, K2AV

Re: K3 Auto antenna switching

E.g. does something else when KIO3 is set to NOR, besides stay high.

On Thu, Aug 25, 2011 at 4:13 PM, Guy Olinger K2AV <[hidden email]>wrote:

> Gotcha.
>
> Is what goes on with DIGOUT0 "firmwired" in the firmware, or is that
> available somehow with some sneaky procedure? TWO signals I could work, one
> of them via software command to K3, would be simply splendiferous and get
> rid of ugly relay logic board. But I know I'm reaching here...
>
> 73, Guy.
>
>
> On Thu, Aug 25, 2011 at 3:48 PM, Joe Subich, W4TV <[hidden email]>wrote:
>
>>
>> DIGOUT1 - see the "PR6 Owners Manual"
>>
>> 73,
>>
>> ... Joe, W4TV
>
>

Don Wilhelm-4

Re: K3 Auto antenna switching

Guy,

Thanks for your questions - you are giving me ideas about how to
reconfigure and automate my antenna switching to take advantage of both
ANT1 and ANT2. Right now, I use only a single connector on the KAT3,
and have given up on automating the band selection for now, so I operate
manual switches. I have 4 HF and 6 meter coax lines coming into the
shack, and one of those comes from a remote 6 position antenna relay.

Of course, my situation is a bit unique because once in the shack, I
switch those 4 antenna feedlines among 3 transceivers. The K2 gets
priority, the FT-847 is second priority and the 3rd transceiver can take
whichever feedlines that are not being used by the other 2. An
advantage of my arrangement is that when no feedline is selected (or
relay power is off), the K3 and the FT-847 are connected to a dummy load
(the 3rd transceiver operator has to remember to switch to a dummy load
manually.

On some bands (80, 40 and 20) , I have 3 antennas either up now or in my
antenna plan, so that is why I have chosen the manual switching -
automating it with only ANT1 or ANT2 was not sufficient, I have to
figure out how to handle that. The ACC outputs from the KRC2 may be the
answer, but selecting the correct ACC output is still a manual operation.

73,
Don W3FPR

On 8/25/2011 4:33 PM, Guy Olinger K2AV wrote:

> E.g. does something else when KIO3 is set to NOR, besides stay high.
>
> On Thu, Aug 25, 2011 at 4:13 PM, Guy Olinger K2AV<[hidden email]>wrote:
>
>> Gotcha.
>>
>> Is what goes on with DIGOUT0 "firmwired" in the firmware, or is that
>> available somehow with some sneaky procedure? TWO signals I could work, one
>> of them via software command to K3, would be simply splendiferous and get
>> rid of ugly relay logic board. But I know I'm reaching here...
>>
>> 73, Guy.
>>
>>
>> On Thu, Aug 25, 2011 at 3:48 PM, Joe Subich, W4TV<[hidden email]>wrote:
>>
>>> DIGOUT1 - see the "PR6 Owners Manual"
>>>
>>> 73,
>>>
>>> ... Joe, W4TV
>>
> ______________________________________________________________
> Elecraft mailing list
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> 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
>

Joe Subich, W4TV-4

Re: K3 Auto antenna switching

In reply to this post by Guy, K2AV

As far as I know the only use of DIGOUT 0 is to indicate low power
operation for a given transverter band:

> With KIO3 set to TRN or HF-TRN, the DIGOUT0 line (ACC, pin 6) will
> output 0 V when low power mode is selected for the current
> transverter band (CONFIG:XVn PWR). At all other times, DIGOUT0
> will be floating (Hi-Z).

It would be nice if DIGOUT 0 could be used for other functions (e.g.,
per-band/per-mode like DIGOUT 1, or generate a 500 msec pulse in
response to the ATU TUNE button when the KAT3 is off/not installed)
if the K3 is not used with transverters.

73,

... Joe, W4TV

On 8/25/2011 4:13 PM, Guy Olinger K2AV wrote:

> Gotcha.
>
> Is what goes on with DIGOUT0 "firmwired" in the firmware, or is that
> available somehow with some sneaky procedure? TWO signals I could work, one
> of them via software command to K3, would be simply splendiferous and get
> rid of ugly relay logic board. But I know I'm reaching here...
>
> 73, Guy.
>
> On Thu, Aug 25, 2011 at 3:48 PM, Joe Subich, W4TV<[hidden email]> wrote:
>
>>
>> DIGOUT1 - see the "PR6 Owners Manual"
>>
>> 73,
>>
>> ... Joe, W4TV
>