Hi , I have to transmit FSK modulated data from a transmitter chip towards Transceiver(TS2000x) so that I can receive the data in computer. I am able to control the internal TNC of TS2000x through a software called Pacterm. Even if the signal power is being displayed on display panel, no data is being received in computer. I have an option of using the UNPROTO mode in internal TNC. I am sending AX.25 UI frames to the transceiver. Even then, nothing appears on computer screen. The parameter RXERROR count also does not increment (which could have stated otherwise that the packets are rejected). Can you just tell me what can be the possible cause? and solution too.. I can also use KISS MODE (found in transceiver datasheet) but there is no data display in that also though it says it does not do any packet operation on this mode and directly forward the data to computer..

Kshitiz