Low Orbit Debris

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DDE MultiMode

Yet Another DDE Client for Satellite Tracking & AZ/EL Controller over TCP/UDP/RS-232

I use Orbitron for tracking orbitting satellites and it's great. Especially, after mastering what satellite to follow, it'd be more convenient to have your own TLE files. See details on Orbitron website. As you might already know, Orbitron comes with DDE support for adjusting the doppler shift and communicating with your antenna AZ/EL controller if you have one.

I wanted to use HDSDR software with Orbitron while getting data for my custom AZ/EL controller but I figured out I can not get AZ/EL AND get the doppler shift corrected in HDSDR in the way I want it to be. I wrote a small program, which mimics works as MyDDE driver (which is originally written in Pascal). I never worked with Pascal so writing my own program appeared an easier solution.

Below, DDE MultiMode is shown tracking CUTE-1.7 Cubesat. Only DDE communication is active, shown by the upper green dot. No forwarding is chosen, thus the red indicator.

Image below shows DDE MultiMode tracking Tianwang 1A. DDE communication is active and TCP Packages are monitored on Telnet to Localhost in this case. The port is TCP 6500. Uplink and Downlink frequencies are also shown along with a simple AZ/EL locator screen.

Click here for detailed information and download