[amsat-bb] AO-73 Frequency Shifts

[Graham Shirville]

Hi Albert,

Not really a design flaw but more a design feature.

Basically, the designers were being shouted at to "keep the power 
consumption to a minimum" by the power budget supremo...when the 
oscillator circuits were designed, way back, low power equated to poor 
thermal drift performance...now we have better technology but back then 
it was a reasonable trade off.

Coming up next month, AO73-FUNcube-1 will be back in full sunlight so 
the onboard temperatures will stabilise again.

I hope you can still enjoy using the transponder!

73

Graham G3VZV for the FUNcube team.....

On 30/07/2020 17:17, Albert Ozias via AMSAT-BB wrote:
> Why is AO-73 frequency more effected by time in sunlight than other birds? Is this a design flaw or a component failure?
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