Imported from GitHub: SP6GK/TXRX_Relay_Board · commit 7f3b410 · license GPL-3.0

Description

A PCB for switching the signal path between RX and TX in a high-power HF amplifier, such as the Forte 600. It includes RX/TX relays, an input SWR bridge, and analog input over power protection.

README

TXRX_Relay_Board

A PCB for switching the signal path between RX and TX in a high-power HF amplifier, such as the Forte 600. It includes RX/TX relays, an input SWR bridge, and analog input over power protection.

For the theory of operation and functionality, please refer to section 2.2.1 of the Forte 600 documentation link.

Change log:

05.09.2024 - rev 1.2:

• Removed unconnected tracks and fixed some footprint libraries, as well as the relative path to the custom schematic template (thanks to vk4kyt for pointing this out).
• Changed NPN and PNP transistors to more common types.
• Added coupler measurements and simulated the overpower protection circuit in Falstad.