[Skimmertalk] RF Guard(6m

[Dai NAGAKURA]

...and I put T/R switch MFJ-1708 before RF guard,
 synchronizing transmitter.

But Red Pitaya's front end is bare and weak.
then it hiccups and hang up when I transmit even 50W power

When I join contests ,I pull out all cable of Red Pitaya.

Dai JF2IWL



On Thu, 15 Jun 2017 17:53:07 -0700
"Bob Wilson, N6TV" <n6tv at arrl.net> wrote:

> On Thu, Jun 15, 2017 at 12:45 PM, a45wg <a45wg at sy-edm.com> wrote:
> 
> > And why a 1:9 in front ?
> 
> 
> The Red Pitaya has a high impedance (1K ohm?) input.  They're now offering
> a 14:1 transformer (1000/14 = about 71 ohms), but it's not up on their web
> site yet.  But 9:1 transformers are more common as beverage transformers,
> and they will probably work almost as well.
> 
> 73,
> Bob, N6TV
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-- 
Dai NAGAKURA <ndai at cameo.plala.or.jp>