FM Analysis > P275 FM Analyzer

Relay for antenna switching

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mimu:
Hello, does anyone have suggestions for a suitable relay to switch the antenna input of the P275 using GPIO outputs? Thanks.

Jan:
I'm using this board https://pira.cz/show.asp?clanek=prepinac_anten_HMC253 from eBay
in this project https://pira.cz/monitor/

You can directly connect the alarm/gpio outputs to the board's pins A, B, C to switch up to 8 antennas  8)

Soon I will publish the new script files for the monitoring.

mimu:
Wow, great  :D
Can it also be powered via the alarm out? Is the power sufficient?

Jan:
Yes, exactly. I'm using it that way.

mimu:
Hi Jan, are there any plans to integrate the HMC253 directly into your analyzers?

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