HARDROCK-50 QSK Mezzanine Kit The kit includes everything that

The kit includes everything that you need:

RX filter removes out-of-band signals

This board is designed as a plug-in accessory for the HARDROCK-50 with serial numbers 1200 and higher (Rev F or higher board set)

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Elad and Xiegu

HARDROCK-50 QSK Mezzanine Kit The kit includes everything thatThe HARDROCK 50 QSK Mezzanine kit adds high speed diode switching to the HARDROCK 50 HF Power Amplifier. The QSK Mezzanine has low insertion loss in the receive path, less than 0. 5 dB. Onboard relays provide a direct connection from the radio to the antenna when power is removed from the board. The kit includes an interface board that is designed to replace the T R relay in a Hardrock 50. This board is designed as a plug in accessory for the HARDROCK