Clint Bradford, K6LCS, recently posted a link to his website on the HF Pack group. He has a great article about working satellites AO-51 and SO-50 from low power rigs. QRP HF rigs like the Yaesu FT-817–which have VHF/UHF–are ideal for this type of satellite work. This article is well written and contains good references. I should mention that Clint is an AMSAT Area Coordinator in California and uses this document in his presentations.