[amsat-bb] Alfa Spid Rotor Question

Our Grade School has been selected to participate in the NASA ARISS program. We are working to have our station setup for the scheduled October ISS contact. We are having a problem with the Alfa Spid rotor controller, in that it can see the port but cannot talk to it. This problem was duplicated by the technician at Hy-Gain (US Distributor). Has anyone else had a similar problem? If so, is there a solution? TNX 73, Bob KEØSDV