[amsat-bb] Ettus B210

Edward R Cole kl7uw at acsalaska.net
Mon Jan 25 18:03:00 UTC 2016


You are probably going to have to build an amplifier, but many RF 
modules only require 40mw drive.  I am building 80w 2m amplifiers 
using the Toshiba S-VA36:

Other modules in that line such as S-VA10H outputs up to 14w.  They 
all require pretty much the same pc board.  I am using the board made 
by W6PQL which costs $17.50 without parts.  Parts for the 80w amp are 
listed on Mouser as a special project which is linked from:

If you did not want 80w output one could substitute the 10, 25, or 
50w RF modules:

Not sure what you mean by "pass through" unless you mean an amp that 
bypasses for Receive.  The W6PQL does that and has ckt for RF sensed 
keying in transmit or external PTT.  I've enhanced the design with 
addition of power output metering and temp-controlled cooling fan.

But building in limited quantities means the parts are not cheap.

73, Ed - KL7UW
Date: Mon, 25 Jan 2016 10:38:32 +0100
From: Juan Sanchez <jsdenis at gmail.com>
To: amsat-bb at amsat.org
Subject: [amsat-bb] Ettus B210
         <CAD9R3jOYs1VDjxUntU1XQYi_NDvZJoY1UtbBXQ69qmb_0fEXFQ at mail.gmail.com>
Content-Type: text/plain; charset=UTF-8

I'm looking for some information about using some ettus SDR for sat work. I
have a B210. What kind of amplifier can I use able to be driven with the
200 mW of the Tx/RX output, better if it's pass trought. My google search
was unable to find some ham who has made somethin similar
Is ther some similar work with another SDR?
I would appreciate any kind of help... I'm a newbie...
Thanks a lot.

73, Ed - KL7UW
     "Kits made by KL7UW"
Dubus Mag business:
     dubususa at gmail.com

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