[amsat-bb] Re: Drifty LinearTransponder Oscillators

Paul Stoetzer n8hm at arrl.net
Sat Jan 11 06:31:58 PST 2014

According to Wouter, PA3WEG, who designed the AO-73 transponder, PLL
frequency generation is possible now within the power budget of a 1U
CubeSat, but was not when the FUNcube's transponder was designed.

See his post from last month:



Paul, N8HM

On Sat, Jan 11, 2014 at 9:22 AM, Rich/wa4bue <richard.siff at verizon.net> wrote:
> AO7 and FO29 seem to be very stable.  VO52 was my first experience with a
> drifty transponder oscillators. I read some explanations on the BB.
> What design element needs to be changed to stabilize the linear transponders
> oscillators on the new CUBESATS.
> Are the beacons crystal controlled?
> Rich
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