[amsat-bb] Re: HRD Satellite Tracking - Technology Preview

Simon (HB9DRV) simon at hb9drv.ch
Sat Aug 23 06:55:55 PDT 2008

Yes, you do *not* need to connect to a radio.

An advantage of splitting this code into its own executable is that I can 
maintain it - with too much in the HRD executable it's just too easy to 
change something in one area and break something else.

Re: Doppler - you can update Kepler files as often as you want, for example 
download latest data every 15 minutes. Listening to CW beacons on 70cms I 
hear (and see) no change in pitch at all, so the Doppler's working!

Simon Brown, HB9DRV

----- Original Message ----- 
From: "David" <m0zlb at btinternet.com>

Before downloading and trying it out can you tell me if the satellite 
tracking program works without having the radio(s) connected? One of the 
original versions of HRD that I used allowed me to check passes etc without 
the need to have the radio in line - the latest version was inoperable 
unless the radio was there. I stopped using HRD at this point although the 
well documented problem with the non- functioning Doppler compensation 
control was another factor. 

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