[Elecraft] Fwd: Re: Full duplex for Sat work?
Jerry Moore
jermo at carolinaheli.com
Tue Aug 18 10:05:45 EDT 2015
It may merit further research. The owner's manual block indicates the Rx DSP
as "DSP2" ? It may be doable with firmware IF the hardware path would allow
it. IF the hardware paths allow it then it's probably configured in firmware
to protect the DSP/circuits... no clue.. looking for the schematic now.. not
a high priority but fun and educational.
jer
-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Jim
Rogers
Sent: Tuesday, August 18, 2015 7:46 AM
To: Edward R Cole; elecraft at mailman.qth.net
Subject: Re: [Elecraft] Fwd: Re: Full duplex for Sat work?
I believe the software is available on the AMSAT website and if you sign up
for AMSAT membership they will allow the download and send a CD of the
available software etc.
Jim, W4ATK
On 8/17/2015 8:08 PM, Edward R Cole wrote:
>
>> Date: Mon, 17 Aug 2015 12:41:45 -0800
>> To: Elecraft Reflector
>> From: Edward R Cole <kl7uw at acsalaska.net>
>> Subject: Re: [Elecraft] Full duplex for Sat work?
>>
>> Jerry,
>>
>> Its tempting to think maybe the sub-Rx could be used duplex with
>> main-Tx in the K3, but as you discovered its not possible as DSP is
>> in use for Tx or Rx, but not both simultaneously.
>>
>> There is a kind of solution, though, if you own both K3 and KX3:
>>
>> Set K3-2M to listen on 145-MHz and use K3 with 432 transverter to
>> transmit 435 (or vice versa). The "big" issue is linking frequency
>> control of both radios for tracking Doppler changes. This will take
>> sw via ports in each radio.
>> This will be a third-party sw source an not "likely" accomplished
>> thru firmware updates. Amsat has had what they call the "One true way
>> of tracking"; have to research that to find out if it still exists.
>>
>> I know a ham that might develop such sw but have not contacted him,
>> as yet.
>>
>> 73, Ed - KL7UW
>> http://www.kl7uw.com
>> "Kits made by KL7UW"
>> Dubus Mag business:
>> dubususa at gmail.com
>
> 73, Ed - KL7UW
> http://www.kl7uw.com
> "Kits made by KL7UW"
> Dubus Mag business:
> dubususa at gmail.com
>
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