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Re: Rusty AO-40



Greg D. wrote:

>Hi Bob,
>
>I think the 3731's LO is at 2256, so subtract that from the 2401.200 +/- downlink frequency.  You should get something around 145.200.  Doppler will shift that +/- about 50 kHz, and then you need to factor in your own unit's offset (my modified Drake is off by about another 50 kHz).
>
>I wish you had it running earlier today.  I had the satellite all to myself during the 7:30pm PDT pass.
>
>Greg  KO6TH
>
>
>----------------------------------------
>  
>
>>From: w7lrd@comcast.net
>>To: AMSAT-BB@amsat.org
>>Date: Sun, 17 Aug 2008 04:31:06 +0000
>>Subject: [amsat-bb]  Rusty AO-40
>>
>>Hello
>>My AO-40 (sobsob) techniques are really rusty.  I am trying to find AO-51 S band downlink.  I forget the conversion frequency on a 3731aa downconverter to the two meter band. With the pass duration I don't have a lot of time to look, which I did.  Anyone aim me to the correct frequency?
>>73 Bob W7LRD
>>
>>--
>>"if this were easy, everyone would be doing it"
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>>
>
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>  
>
Yes,
I agree.   The 3731, if it was modified for 2 meters, output is 145.200  
plus/minus doppler.  Here on the East coast...I had a nice QSO with a 
VE3 and K5 with the satellite without anyone else.  I had blown my 
original K5GNA unit as I transmitted into it with my Icom 910.  I had a 
spare-Mr. Murphy planning.   Thanks to the AO-51 crew for putting a few 
days of 2.4 so we can test out units for future ops(Hopefully!!??!!)
73,
Dee, NB2F
P.S.  Get over AO-40 already---I miss it too but.... Let's keep on the 
BOD to do the right stuff!!??!!
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