[amsat-bb] Modern Equipment Matrix

Greg D ko6th.greg at gmail.com
Sat Mar 21 03:53:22 UTC 2015

Kevin M via AMSAT-BB wrote:
> If you can get the 800 Mhz band to appear then it's much more likely to do full duplex on Mode V/U without desense from third harmonics

Hi Kevin,

I don't see the connection between 800mhz Rx and 3rd harmonic desense.  
My guess (no hard evidence here) is that the ability to receive 800 mhz 
was simply a programming change to the user interface, not allowing the 
rig to go there.  No changes to the RF chain, because that would be a 
rather expensive change (manufacturing, certifications, etc).  Without 
RF changes, the rig's performance wouldn't be any difference with or 
without the user interface change.

Is there evidence that they did something more than that?

Greg  KO6TH

More information about the AMSAT-BB mailing list