[Elecraft] [K3] - Digital Modes Interface - Working Split

[Jim Brown]

On 2/15/2014 4:14 AM, Joel Black wrote:
> The reason I ask is that I have lately been using an E-MU 0204 for 
> sound card modes. I've been thinking about purchasing either a 
> Navigator or a microHAM Digi Keyer II. This is where I think I may be 
> wrong in my thinking - the SignaLink USB has only mono receive 
> capability. When working split, is there any reason why I have to be 
> able to decode both the DX (or split station [i.e. W1AW/x]) and the 
> calling station? 

While it might be helpful to decode signals on your TX frequency when 
working split, you would need another instance of MMTTY (or whatever 
decode software you use). I am a serious contester, and active DXer, 
mostly CW, but also SSB and RTTY, and while I often listen to my TX 
frequency, I've never tried to decode it.

FWIW, I've never seen the virtue in dedicated interfaces like the 
Microham stuff, and they sure are complicated to set up. It IS a good 
move to use a decent USB audio interface, the EMU is overkill for 
digital modes, but a good choice for bandscope display (but a P3 is MUCH 
better). The Signalink has its limitations (mono, and Pin One Problems), 
but it's bought and paid for, so I'd stick with it and spend your bucks 
in Watsonville.

It isn't clear whether you have the P3 yet and only need to add the 
SVGA. If you're not a contester but you are a DXer, you'll find the P3 
very helpful in figuring out how the DX is working the pileup, but the 
SVGA does not help with that. It does add some PSK and RTTY 
functionality, but I'd rather get that from the computer.

If you already have a P3, go for the KPA500. You'll need SOME tuner with 
it unless your antennas are flat, but it works fine with a manual tuner 
that can handle the power. Before the KAT500s were available, I used the 
excellent Ten Tec 229 and 238 tuners. They go used for $275 - $325, and 
would get you through until you have the bucks for a KAT500.

73, Jim K9YC