[amsat-bb] Re: Use of Elecraft K3 or KX3 with satellite sw

Stefan Wagener wageners at gmail.com
Sun Dec 1 14:21:43 PST 2013

Hi Ed,

Very good question and an important one!

With the more and more frequent use of “alternate” radios for satellite
work, software support is important. In general, and others please correct
me, the primary satellite programs like SatPC32, Orbitron, MacDoppler etc
have provide support for the classical satellite radios like FT-847,
TS-2000, IC-910 and respective older models, but not for any SDR based
radios unless they support an existing command (CAT) format like the
Flexradios work with the TS-2000 command set.

Now, having said that, programs like HamRadioDeluxe have a satellite
function (doppler control) and support a much larger set of radios. Also,
the version 2 SDR software from Simon Brown supports satellites. It is
important to investigate the radio models they support and/or emulate to
see if your specific set-up is covered. I assume the more SDR radios and
specifically VHF/UHF radios like the BladeRF and Etus Research become
popular and software supported, the more the current satellite program
developers (if interested) will add functionality. The future looks bright
for future SDR full duplex VHF/UHF radios. We are just not there yet J and
I would guess they are not coming from the big three (Icom. Yaesu or

Hope this helps a little.

73, Stefan VE4NSA

On Sun, Dec 1, 2013 at 3:55 PM, Edward R Cole <kl7uw at acsalaska.net> wrote:

> I very rarely post anything to this reflector, but I have a question that
> maybe someone has already has done and has answers.
> Shortly Elecraft will be offering a 2m module for its popular new SDR
> radio, the KX3.  This will provide 2m multi-mode operation using this nice
> little HF/6m radio.
> Some years ago I sold my old satellite radios (FT-847 & FT-817) so am
> looking into a two radio configuration for cross-band duplex satellite
> operation.  I have a K3 with 435-437 transmit capability using a Down East
> Microwave transverter and would be able to receive on 145 using the new
> KX3-2M combo.  (I also still have my s-band downconverter and L-band up
> converter for if/when these bands are activated).
> What is unknown is if there is any sw support of the Elecraft radios on
> any satellite tracking sw? I am primarily interested in SSB thru
> transponders so frequency tracking under sw control would be "nice".  I
> have both NOVA and SatPC32.  I have a tracking interface to control antenna
> tracking using a B5400 Yaesu az-el rotator.  Both these radios have
> computer control ports.
> 73, Ed - KL7UW
> http://www.kl7uw.com
> dubususa at gmail.com
> "Kits made by KL7UW"
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