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K3 Diversity VFO Linking

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James Balls-2

K3 Diversity VFO Linking

Having just completed the Russian DX contest, our run station has 2
antenna and listens in 2 directions, we use diversity but it is very
annoying to have to keep re engaging VFO LINK in the menu every band
change ..

Could VFO Link have 3 options
OFF
ON
PERM

PERM meaning VFO A and VFO B in Diversity mode are automatically linked
and stay linked so long as Diversity is enabled

Actually in PERM mode it would be good that when the SUB is held and
Diversity is enabled that the mode freq etc is copied from A to B
automatically.

Could this be done in a future firmware upgrade please?

This would make much more sense to us and help to have 1 less thing to
think about

Regards
Jim M0CKE - G2F
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Joe Subich, W4TV-4

Re: K3 Diversity VFO Linking

> Actually in PERM mode it would be good that when the SUB is held and
> Diversity is enabled that the mode freq etc is copied from A to B
> automatically.

There is no need to copy A->B when engaging diversity. Diversity uses
VFO A (the same synthesizer) for both receivers - it is not simple
"frequency tracking".

73,

... Joe, W4TV

On 2015-03-23 11:19 PM, James Balls wrote:

> Having just completed the Russian DX contest, our run station has 2
> antenna and listens in 2 directions, we use diversity but it is very
> annoying to have to keep re engaging VFO LINK in the menu every band
> change ..
>
> Could VFO Link have 3 options
> OFF
> ON
> PERM
>
> PERM meaning VFO A and VFO B in Diversity mode are automatically linked
> and stay linked so long as Diversity is enabled
>
> Actually in PERM mode it would be good that when the SUB is held and
> Diversity is enabled that the mode freq etc is copied from A to B
> automatically.
>
> Could this be done in a future firmware upgrade please?
>
>
> This would make much more sense to us and help to have 1 less thing to
> think about
>
>
> Regards
> Jim M0CKE - G2F
> ______________________________________________________________
> 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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James Balls-2

Re: K3 Diversity VFO Linking

In reply to this post by James Balls-2

So SUB VFO does nothing in diversity mode?

Press and hold SUB to enter diversity and just use Main VFO .. both main
and sub RX are using main vfo and the sub VFO and freq readout does
nothing other than a split TX freq?

Is this right?

Jim M0CKE

On Tue, 24 Mar 2015 03:52:09 -0000, Nr4c <[hidden email]> wrote:

> Update FW. Link is now menu item. Linking is not necessary for
> Diversity. Diversity uses VFO A freq and synth for both receivers.
>
> Sent from my iPhone
> ...nr4c. bill
>
>
>> On Mar 23, 2015, at 11:19 PM, James Balls <[hidden email]> wrote:
>>
>> Having just completed the Russian DX contest, our run station has 2
>> antenna and listens in 2 directions, we use diversity but it is very
>> annoying to have to keep re engaging VFO LINK in the menu every band
>> change ..
>>
>> Could VFO Link have 3 options
>> OFF
>> ON
>> PERM
>>
>> PERM meaning VFO A and VFO B in Diversity mode are automatically linked
>> and stay linked so long as Diversity is enabled
>>
>> Actually in PERM mode it would be good that when the SUB is held and
>> Diversity is enabled that the mode freq etc is copied from A to B
>> automatically.
>>
>> Could this be done in a future firmware upgrade please?
>>
>>
>> This would make much more sense to us and help to have 1 less thing to
>> think about
>>
>>
>> Regards
>> Jim M0CKE - G2F
>> ______________________________________________________________
>> 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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wayne burdick

Re: K3 Diversity VFO Linking

Administrator

On Mar 23, 2015, at 9:21 PM, James Balls <[hidden email]> wrote:

> So SUB VFO does nothing in diversity mode?

Even in diversity mode, VFO B can be used as the transmit frequency during split. But in diversity mode, the main and sub receivers both use VFO A's frequency.

Wayne

>
> Press and hold SUB to enter diversity and just use Main VFO .. both main and sub RX are using main vfo and the sub VFO and freq readout does nothing other than a split TX freq?
>
> Is this right?
>
> Jim M0CKE
>
>
>
> On Tue, 24 Mar 2015 03:52:09 -0000, Nr4c <[hidden email]> wrote:
>
>> Update FW. Link is now menu item. Linking is not necessary for Diversity. Diversity uses VFO A freq and synth for both receivers.
>>
>> Sent from my iPhone
>> ...nr4c. bill
>>
>>
>>> On Mar 23, 2015, at 11:19 PM, James Balls <[hidden email]> wrote:
>>>
>>> Having just completed the Russian DX contest, our run station has 2 antenna and listens in 2 directions, we use diversity but it is very annoying to have to keep re engaging VFO LINK in the menu every band change ..
>>>
>>> Could VFO Link have 3 options
>>> OFF
>>> ON
>>> PERM
>>>
>>> PERM meaning VFO A and VFO B in Diversity mode are automatically linked and stay linked so long as Diversity is enabled
>>>
>>> Actually in PERM mode it would be good that when the SUB is held and Diversity is enabled that the mode freq etc is copied from A to B automatically.
>>>
>>> Could this be done in a future firmware upgrade please?
>>>
>>>
>>> This would make much more sense to us and help to have 1 less thing to think about
>>>
>>>
>>> Regards
>>> Jim M0CKE - G2F
>>> ______________________________________________________________
>>> 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]
>
>
> --
> Using Opera's mail client: http://www.opera.com/mail/
> ______________________________________________________________
> 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]

Joe Subich, W4TV-4

Re: K3 Diversity VFO Linking

In reply to this post by James Balls-2

> Press and hold SUB to enter diversity and just use Main VFO .. both
> main and sub RX are using main vfo and the sub VFO and freq readout
> does nothing other than a split TX freq?

Correct - both receivers are using VFO A and VFO B is only used for
split.

73,

... Joe, W4TV

On 2015-03-24 12:21 AM, James Balls wrote:

> So SUB VFO does nothing in diversity mode?
>
> Press and hold SUB to enter diversity and just use Main VFO .. both
> main and sub RX are using main vfo and the sub VFO and freq readout does
> nothing other than a split TX freq?
>
> Is this right?
>
> Jim M0CKE
>
>
>
> On Tue, 24 Mar 2015 03:52:09 -0000, Nr4c <[hidden email]> wrote:
>
>> Update FW. Link is now menu item. Linking is not necessary for
>> Diversity. Diversity uses VFO A freq and synth for both receivers.
>>
>> Sent from my iPhone
>> ...nr4c. bill
>>
>>
>>> On Mar 23, 2015, at 11:19 PM, James Balls <[hidden email]> wrote:
>>>
>>> Having just completed the Russian DX contest, our run station has 2
>>> antenna and listens in 2 directions, we use diversity but it is very
>>> annoying to have to keep re engaging VFO LINK in the menu every band
>>> change ..
>>>
>>> Could VFO Link have 3 options
>>> OFF
>>> ON
>>> PERM
>>>
>>> PERM meaning VFO A and VFO B in Diversity mode are automatically
>>> linked and stay linked so long as Diversity is enabled
>>>
>>> Actually in PERM mode it would be good that when the SUB is held and
>>> Diversity is enabled that the mode freq etc is copied from A to B
>>> automatically.
>>>
>>> Could this be done in a future firmware upgrade please?
>>>
>>>
>>> This would make much more sense to us and help to have 1 less thing
>>> to think about
>>>
>>>
>>> Regards
>>> Jim M0CKE - G2F
>>> ______________________________________________________________
>>> 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]
>
>

Cady, Fred

Re: K3 Diversity VFO Linking

In reply to this post by wayne burdick

Hi James,
Here is how you can use split in diversity mode:
Operating Split in Diversity Mode
You can operate split when in diversity reception. Because both receivers are tuned by VFO A when in diversity mode, you must revert to the operating techniques needed for a single receiver radio. You will be listening to the DX station on VFO A and searching for the station that has successfully broken through the pile-up with VFO B, which can be tuned independently of VFO A. VFO B controls the transmit frequency in split operation.
1. Tune into the DX station with VFO A.
2. Tap A>B to transfer VFO A to VFO B.
3. Start up diversity reception by holding SUB for more than two seconds.
4. Hold SPLIT to enter split mode. Now you will be transmitting on VFO B.
5. When you hear the DX station go back to a station in the pile-up, hold the REV switch to reverse VFO A and VFO B temporarily. Quickly search through the pile-up using VFO A to find the station going back to the DX. When you find it, release REV and get ready to call the DX on the next over.
6. You may also hold B SET to enter b SEt mode. You will hear the Main receiver in the left ear and the Sub in the right ear. This temporarily overrides diversity mode allowing you to hear the DX station on VFO A and the pileup frequencies on VFO B.

Cheers and 73,
Fred KE7X

Author of:
"The Elecraft K3: Design, Configuration and Operation 2nd ed"
"The Elecraft KX3 - Going for the summit"
"The Elecraft KPA500 and KAT500 - the K-Line Dream Station"
Printed, coil bound copies of these are all available at www.elecraft.com
KPA500 and KAT500 Quick Set Up Guide
http://www.ke7x.com/home/k-line-introduction-and-set-up-guide
KAT500 and KXPA500 Tuner Operation
http://www.ke7x.com/home/kat500-and-kxpa100-tuners

> -----Original Message-----
> From: Elecraft [mailto:[hidden email]] On Behalf Of
> Wayne Burdick
> Sent: Monday, March 23, 2015 10:32 PM
> To: James Balls
> Cc: [hidden email]
> Subject: Re: [Elecraft] K3 Diversity VFO Linking
>
>
> On Mar 23, 2015, at 9:21 PM, James Balls <[hidden email]> wrote:
>
> > So SUB VFO does nothing in diversity mode?
>
> Even in diversity mode, VFO B can be used as the transmit frequency
> during split. But in diversity mode, the main and sub receivers both
> use VFO A's frequency.
>
> Wayne
>
>