4-Port Coax Relay Project Design

7/17/2018

George KJ6VU takes us through a thorough deep dive of the design of the 4-Port Coax Relay Project. We talk about the five major sections of the project - RF circuit switching with relays, control via PIC Microcontroller, the power supply, the user interface, and serial communications. Each section provides a reference design that could be leveraged in other projects.

Pick up the 4-Port Coax Relay Project Partial Kit from our store - https://www.hamradioworkbench.com/store/p6/4-Port_Coax_Relay_Partial_Kit.html

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4 Comments

Elive

8/10/2018 09:18:08

I listened to the end and you guys rocked it. Well done!

Clarence E Canterbury

8/10/2018 15:54:34

I am shocked this has a DC barrel connector instead of POWERPOLES! POWERPOLE THE WORLD!

K2PI

8/15/2018 18:10:26

Picked up this board at Hamvention. I didn't appreciate that the "small amount of parts" I was told were needed to complete the kit turned out to be over one-hundred dollars worth of parts. That seemed deceptive to me, and I would not recommend this kit to anyone. It remains an unpopulated board on my bench.

KF7IJZ

8/28/2018 08:24:47

Hello K2PI. To complete the project for the base level of functionality, the BOM cost is $64.28 from DigiKey. The cost goes over $100 if a Ham wishes to add all of the wireless/controll functionality as that cost includes XBee radio module and RS485, which are both optional features. More information, including a link to the Bill of Materials can be found here https://www.hamradioworkbench.com/4-port-coax-relay.html

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4-Port Coax Relay Project Design

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