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Interface board RI-4 V2.0

Suitable for:
Echolink
Freeradionetwork
Digital Master
Fldigi
WSJT-X
and other software for digital modes

CAT:
Isolated RX/TX, tested with WSJT-X, N1MM and HRD
up to 19200 baud (experimental feature on this module, just RX/TX lines without handshaking, work only with TTL inverter and 5Vdc source)

CW/FSK Trigger from PC:
USB to serial adapter (DTR)

CW/FSK Trigger to RADIO:
Isolated, optocoupler

PTT Trigger from PC:
USB to serial adapter (RTS)

PTT Trigger to RADIO:
Isolated, optocoupler

Modulation level regulation (from PC to RIG):
CW -minimum
CCW -maximum

Modulation level regulation (from RIG to PC):
CW -minimum
CCW -maximum

*CONNECTION TO PC:
USB for PTT, CW/FSK, CAT.
Sound card direct to terminals.

Board dimensions:
W92mm L88mm H25mm (max with standoffs)

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