[amsat-bb] Linear Transponder Up and Down link frequency calculator

[Hasan al-Basri]

Very nice Terry, but you forgot CAS-4a  :-)

I work with pre-defined sat pairs to avoid Wifi spikes. Here are the
results for some of the common birds using our downlink and your uplink
(predicted) vs. what our uplinks really are for perfect audio.

CAS-4B 145.918  435.287  Actual: 435.285.900
XW-2A  145.672   435.043  : 435.042.600
XW-2B  145.733   435.107  : 435.106.800
XW-2C  145.798   435.167  : 435.166.800

Very solid agreement, tnx so much. It would have saved  us a lot of time
setting up the first time, had we had you nice program.

Please add CAS-4A when you get time.

73, N0AN


Hasan


On Sat, Apr 27, 2019 at 8:41 PM Wendy and Terry Osborne via AMSAT-BB <
amsat-bb at amsat.org> wrote:

> Hi Folks,
>
> With the number of Linear Transponder Satellites that are operational or
> in the pipeline,
> I thought a simple program to convert uplink to downlink frequencies was
> worth writing.
> I’ve written one for Windows.
> You can find it here:
> https://www.dropbox.com/sh/4o375h6bygjxkzr/AABi9Ck9Wc6ODrhXwIVHxI-_a?dl=0
> I’ve put the exe file and the same file in zip format.
> I have put all the current birds plus the ones that have launches pending.
> Just select the satellite of interest from the “Satellite” drop down menu,
> put your frequency into the text box and hit the Up or Dn calculate button.
>
> Let me know if you think this is useful.
>
> 73,
> Terry Osborne ZL2BAC
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