[amsat-bb] Re: so-50 and ao-51 power management

[Mark L. Hammond]

I'll add just a bit...

There are something like 8 different voltage settings/thresholds that
interact with the power management and the battery management on
AO-51.  And of course, there is 1 or 2 different transmitter power
settings to deal with at the same time.   It takes some tweaking to
get it right!

Read a post I made a few days ago...I talk through what AO-51 is doing...


73,

Mark

On Fri, Jan 14, 2011 at 12:23 PM, Andrew Glasbrenner
<glasbrenner at mindspring.com> wrote:
> On 1/13/2011 5:55 PM, normn3ykf at stny.rr.com wrote:
>> Hi all!
>> What power management scheme is used for so-50 and ao-51 when the birds are eclipsed?
>> thanks,
>> Norm n3ykf
>> _______________________________________________
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> Right now, AO-51 shuts off the transmitters when the battery voltage
> dips below a setpoint, or the panels drop below 14v. It turns back on
> when the battery voltage reaches a separate setpoint.
>
> SO-50 has no power management that I'm aware of, other than the PL tones
> used to activate it. It should be functional in eclipse.
>
> 73, Drew KO4MA
> AMSAT-NA VP Operations
> _______________________________________________
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-- 
Mark L. Hammond [N8MH]