[Skimmertalk] RedPitaya 125-10 vs 125-14

[Bob Wilson, N6TV]

On Thu, Nov 23, 2017 at 5:54 AM, Stefan von Baltz, DL1IAO <
dl1iao at contesting.com> wrote:

> I see that you can run CwSkimmer and RttySkimmer with one Pitaya and one
> PC. But does anyone run 2 Pitayas on one PC with 2 instances of CwSkimmer
> or even 2 instances each of CwSkimmer and RttySkimmer? This would require a
> powerful PC, though.
>

Yes, I've been running two Red Pitaya STEMlab 125-14s to monitor CW on 14
bands total, plus RTTY Skimmer server on 6 bands.  I did make two instances
of RTTY Skimmer run, but with any activity or carriers, the CPU was pegged.

The Red Pitaya has four main advantages over the QS1R:

   1. It can monitor 8 bands at 192 kHz instead of only 7
   2. It has two antenna inputs, assignable to each receiver slice
   3. It is well supported and easy to order
   4. It is very economical (less than $360 with the case, fan, and
   transformer)

Unlike the QS1R, it does need an external 14:1 transformer on each input
(see http://www.kkn.net/~n6tv/XFMR/).  I can order and distribute more of
those if there is enough  demand.

73,
Bob, N6TV