[amsat-bb] Re: Newbie in the UK

At 08:13 AM 7/8/2007, Charlie Schlieper wrote:

          -Recv-                 -Xmit-
1.    435.308 MHz  -  145.917 MHz
2.    435.304 MHz  -  145.9185 MHz
3.    435.300 MHz  -  145.920 MHz  <-- Cntr Freq.
4.    435.296 MHz  -  145.9215 MHz
5.    435.292 MHz  -  145.923 MHz

These frequencies can't be tuned exactly on most FM boxes, where the minimum step size is 5 kHz.

In my experience, the uplink can remain fixed on 145.920, though there may be some benefit in a 5 kHz change near the ends of the pass, the downlink needs to be adjusted between 435.310 (start of pass) to 435.290 (end of pass), so your table would look like:

Rx Tx 1. 435.310 MHz - 145.915 or 145.920 MHz 2. 435.305 MHz - 145.920 MHz 3. 435.300 MHz - 145.920 MHz 4. 435.295 MHz - 145.920 MHz 5. 435.290 MHz - 145.925 or 145.920 MHz

In my experience, I've never had to tune the uplink on AO-51, leaving it on 145.920 has worked fine for me.

73 de VK3JED http://vkradio.com