sabato 28 ottobre 2017


Looking in my archive i found this interesting system. AutoCall is a proprietary function of the Tadiran HF-6000 radio systems.

The signal is composed of two parts: a single tone followed by an MFSK-4.

Symbol rate: 125 Bd

MFSK modulation : 4 tones, shift 300 hz

Bitstream after demod ( 2 bits / symbol ).

0 commenti:

Posta un commento