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Re: Hamsat Frequencies - Where to start tracking



Yes, I meant 145.900 MHz, not 145.300.
Ed

At 06:41 AM 5/10/2005 -0800, Edward R. Cole wrote:
>Hi,
>
>Perhaps this has been already discussed, but I just got my satellite array
>re-hooked up this weekend.
>
>Using the center of the Hamsat passband 145.300 Rx and 435.250 Tx,  where
>would one best set the Tx frequency to be close for the beginning of a
>pass?  This would be taking Doppler into consideration.  
>
>If I could program my radio for the nominal start frequency, I could find
>my uplink faster with less interference.
>For AO-40 a handy nomograph was developed that gave this by the orbit
>position (MA), but I would guess this is too soon for such to be developed.
>
>I was lucky this weekend to hear myself briefly but it was around mid-pass
>and I failed to note the uplink freq.  
>
>Last night I did hear VE3WFG clearly on a mostly pacific pass.  My attempt
>to net his frequency failed miserably!
>I suspect I am not the only newcomer to this satellite that could benefit
>from the experience of you that are successfully working Hamsat.
>
>BTW I am using a 3-elem Arrow for Rx and 3/4WL whip on ground plane for Tx
>(about 5w at the antenna).  I may try a pass using my 11-elem 432 yagi but
>will have to reduce power to min (0.7w at antenna).
>
>Thanks,
>73's,
>Ed - KL7UW  <new call>
>===================================
>BP40iq,  Nikiski, AK      http://www.qsl.net/al7eb
>Amsat #3212
>Modes: V - U - L - S
>===================================
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