README.md

Low Power Coaxial Relay v1.0 - RevB

The Coaxial Relay project for my Low Power VHF station.

Aluminium case - 1590AFL HAMMOND TME.cz

ANT-TX Relay 12V/16A - TE Connectivity RT31L (7-1393239-3) or cheaper FUJITSU (FTR-K1CK012W)

RX relay - TE Connectivity HF6-56 or HF3-56

This version is NC for TX ans NO for TX 0V, RX ON=12V

Relay RT31L inside mechanics detail

Shematic

PCB

Photos

Additional shielding for higher insulation between ANT and RX

Measurement (nanoVNA)

Isolation ANT-RX

Insertion Loss ANT-TX

Intsertion Loss ANT-RX