After hardware wiring of the TNC Rig with the PC
do the following to test the Keying line.
GSC--> Tracking--> Run pass --> select satellite --> OK
MSPE window wll pop up ,If every thing is ok you wll notice the TNC
LEDs blink three time = TNC in KISS Mode.
If there is an error message check again the ports and TNC setup .
On MSPE click fill --> small window pop up for different requests.
Chose fill directory --> and click ok your rig suppose to transmit
a frame of packet.
Now Use other radio and listen to confirm the transmission is ok.