Reports , sending 70 Kb in 4 min 18 sec , via :-
IS0GRB Winlink Server on QO-100 (Dial 10489635.0 USB)
''This morning I made a speed measurement with VARA SAT with winlink express via OSCAR-100.
I sent a file with app. 70 kbytes size from Zirndorf, Germany to IS0GRB island Sardinia ( Italy ).
I have a FTDX3000, a signalink sound card and the DL2BZ transverter driven by Leo Bodnars great GPSDO.
The file was sent in a time of 4min18s.
The sat version of VARA has extended time delay to accommodate the path length , enhanced AFC and 'ping' netting facility to enable fast netting to be achieved ,
Features that may also be useful , for less precise HF use, perhaps VFO controlled set's , or systems with long tx/rx change over times ..noting the modem , unlicensed , remains in the lower speed MFSK modes and as such , may be used with a variety of non linear systems - eg qrp using class D power amps etc [ if your installation is licenced , entering a random key will effectively de-register , being restored when the correct key is entered ]