Our Remote Station at Morningstar has a UHF transceiver and dish antenna that can reach the QO100 geostationary ham satellite, enabling QSOs with many hams worldwide who also can reach it.
Peter ZS1PT has devised a handy calculator spreadsheet to work out where to transmit on the QO100 transponder input and where it will output on the other frequency. He has kindly made it available to the CTARC. Thank you, Peter!
Download the spreadsheet [here].
The file is also available on the CTARC Website's Downloads Page.