Hello friends,
Some friends wrote that the batteries of the AO-7 will not work. However when analyzing the data made available by Mike in your web site I saw that the results of telemetry for the voltage of the batteries and its load are different in each decoding ...
I am convinced that the AO-7 is not in Mode C and would make an appeal to all users of the "Grand Old Girl" using only QRP until your ready reestablishment.
Thank you all for answers and guidance.
73'
Piraja, PS8RF
" Nobody is born knowing "
The Amateur Radio is supportive and helpful in any circumstance.
From: [email protected] To: [email protected]; [email protected]; [email protected] Subject: RE: [amsat-bb] Re: AO-7 is not OK Date: Wed, 14 Apr 2010 17:56:40 +0000
Hi Piraja,
Yes, I made similar observations. If the CW is active on 70cm you can hear sometimes a very strong deviation in frequency. The CW beacon partly not decodable. I agree with you it could be an effect by low batteries or due heavy usage. See some graphs here: http://www.dk3wn.info/p/?cat=21
73, Mike DK3WN
Hi gang!
There is no battery left in AO-7. All the current is generated by solar panels and the only "power buffer" is the capacitors in the regulator board. This may cause the voltage drop that also affects to output power and shifts oscillators. The solar panels are quite old too...
73, Jari oh3uw
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