Downside, youll need over 10Watt FM to get a desent S9 R5 signal...
In stead of the 4 watt needed for a similar USB signal...
Hi Benno,
This is already the reason.. FM is the most ineffective method on satellites and we just don't want to promote this among other technical reasons. We also have had abuse in the past using strong FM on both NB and WB.. There have been a period of experiments using FM as a back channel, but it was not feasible for the above reasons and that's why we banned FM in general on QO-100.
73s Peter