In that picture it looks like the antenna polarization is at 45 degrees, not the elevation. But the elbows on the cross boom can be set at any angle you want. I could believe they're at something like 15 degrees, since the photo was taken from an elevated position. One could also attach the antenna booms to those 45 degree pipe sections at an angle other than parallel to the ground. Either or both of those approaches can be taken to get any elevation angle you need.
73, Ryan AI6DO
On Wednesday, December 19, 2018, 6:45:10 AM PST, Eli Caul eli.caul@sonic.com wrote:
Hi folks -
In my ongoing effort to figure out how to use the SSB satellites, I duplicated this setup over the weekend:
http://k3rrr.com/cheap-computer-controlled-tv-rotor-for-amsat-satellites-and...
I bought a list of materials based on the photograph, and it didn’t occur to me that the PVC parts pictured put the antennas at approximately 45 degrees and not the recommended 15 degrees.
Has anyone done this setup? If so, how did you assemble it so that the antennas ended up at the recommended angle?
There were a couple of higher angle passes yesterday (one was at 50 degrees) but so far I haven’t been able to 'loop' the satellite. I'm using a Yaesu FT-991A for uplink and an Airspy SDR on the downlink.
Advice appreciated. So far I've gotten some excellent advice from AMSAT members and I really appreciate the groups level of expertise and patience with my fundamental questions.
73 de KK6ZHZ,