[Elecraft] Fwd: Re: Full duplex for Sat work?

[Lyle Johnson]

The K3 is not a full-duplex radio.

At the time of the design of the K3 I was hoping we could make it a full 
duplex radio with external transverters, as I was responsible for and/or 
participated in the design of several subsystems in AO-40 and other 
Amateur spacecraft.

The Subreceiver has its own DSP.  The issue is signal isolation between 
Tx and Rx and a few other
bottlenecks.  Full-duplex capability would have impacted the cost and 
complexity of the radio significantly, and would have been a cost borne 
by all buyers of the product.

Since the initial design time of the K3, the primary focus of most 
Amateur satellites has been for use with dual-band HTs using FM.

73,

Lyle KK7P

> It may merit further research. The owner's manual block indicates the Rx DSP
> as "DSP2" ? ...
...
> Its tempting to think maybe the sub-Rx could be used duplex with
> main-Tx in the K3,...