Many thanks for your answer Captain Vollgas, it is good point you mentioned. I will test in order to see if telemmetry works ok. However, I will mostly use telemetry in my Funcub XL, Pilatus PC6 and Easyglider 4 so the distance is not big between me the planes. I used to have Souffleur in my trouser pocket and it has worked well.
I will let you know how this works as this would be a good "poor man''s solution" for Royal SX user with telemetry voice feature integrated in transmitter.....
Regards,
Jussi