Most surges come in thought the power. If the tower takes a strike unlikely anything will survive.
From: AF [mailto:[email protected]] On Behalf Of castarritt Sent: Wednesday, May 28, 2025 4:00 PM To: AnimalFarm Microwave Users Group <[email protected]> Subject: [AFMUG] Tarana power cable with inductor Tarana is telling everyone to switch to a DC power cable for their radios that has a big inductor for surge suppression. Is that really a good idea though? We use a Transtector DC Defender (SASD based) SPD at each BN, and they want the inductor in between the SPD and the radio. If the only surge event that we needed to worry about was a voltage spike on the DC line, this might make sense, but that's not what happens when the tower is struck by lightning, right? The whole structure and the radio chassis/ground is getting energized when the site is struck, and my understanding is that the DC lines need to be brought to the same potential by the SPDs to avoid damage. Wouldn't putting an inductor on the DC line between the SPD and the radio be counter productive?
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