On 3/4/2009 4:17 PM, Tom Clark, K3IO wrote:
The telemetry equations are in the December, 1974 issue of the AMSAT newsletter available at http://www.ka9q.net/AMSAT-Newsletter-1974.pdf. I don't know of anyone who has made an Excel spreadsheet, and it would be nice for some one to make one available.
After posting this note, I see that Mike, DK3WN has already done an AO-7 RTTY decoder program, available at http://www.dk3wn.info/files/ao7_rtty.zip.
You may need to download is library of ActiveX (.ocx) files from http://www.dk3wn.info/files/ocx.zip and unzip it into your ..\windows\system32\ directory.
Then you may need to (I did) update your Microsoft VB6 Runtime files (available from Mike at http://www.dk3wn.info/files/vbrun60sp3.EXE).
It was good to see the detailed TLM from an old friend! One of my first AMSAT tasks was to convert calibration data obtained during thermal vac testing into the the CW & RTTY TLM equations. I urge all of you interested in the early days of AO-7 to read AMSAT-Newsletter-1974.pdf http://www.ka9q.net/AMSAT-Newsletter-1974.pdf !
73 de Tom, K3IO http://www.dk3wn.info/files/ao7_rtty.zip