[amsat-bb] Re: Please check my settings for ISS

w4upd updwrb at bristor-assoc.com
Thu Jan 8 15:07:10 PST 2009

You need to check the date of your keps. ISS needs very up-to-date keps 
due to the ability to vary its orbit when necessary.


    Reid, W4UPD

Wayne Estes wrote:
> Mike WB1AAT wrote:
> I've tried listening to a few passes (as high as 70 degrees) the last 2 
> days and heard nothing but silence. I must be doing something wrong. 
> Can the group confirm I am doing this right for the current cross band 
> repeater?
> My Xmit is 145.99 tone 67 hz
> My RX is 437.8
> My radios, antennas, preamps, and such are fine as I can still work 
> SO-50, AO-51, and FO-29. What gives?
> Wayne W9AE replies:
> Somebody posted those frequencies a couple days ago, but it seems 
> "backwards" to me.  I thought ISS downlinks were ALWAYS on 2m.
> I keep missing the ISS passes the last couple days, but I've loaded the 
> above frequencies and the reverse into Doppler.SQF on SatPC32, so I can 
> hopefully confirm which is the correct uplink/downlink for the crossband 
> repeater.
> The last time I worked the crossband repeater the downlink was 
> definitely on 2m, but that was probably using the "standard" crossband 
> repeater pair of 437.8 MHz up and 145.8 MHz down.
> When you do finally hear the crossband repeater, speak softly or turn 
> the microphone gain way down.  The crossband repeater's audio is easily 
> overloaded even when you transmit in FM-narrow mode (3 kHz deviation).
> Wayne Estes W9AE
> Oakland, Oregon, USA, CN83ik
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