Author Topic: Antenna Switches  (Read 924 times)

Offline pkveazey

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Antenna Switches
« on: December 01, 2020, 04:17:44 PM »
This might be like Mrs. Noah telling Mr. Noah all about the big rainstorm but here goes. Years ago, I tried using a normal, everyday, antenna switch for 2 Meters, 220, and 440. Say what???? Somethings not right. I checked the standing wave ratio without the switch and then checked it with the switch in line. Hmmmmm..... I got a higher SWR and lower power output with the normal switches. Then I went out and bought a high dollar cast Aluminum antenna switch and it worked a lot better. If you are using one of the one's that work great on HF then you might consider getting a switch that is Cast Aluminum and only has the number of outlets that you actually need for VHF and UHF. I attribute the problem to long lead length inside the large HF switches because long lead lengths in a VHF and UHF circuits are a definite NO, NO.

Offline JohnyMac

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Re: Antenna Switches
« Reply #1 on: December 04, 2020, 11:53:23 AM »
They do make specific UHF and VHF antenna switches. Some of the more expensive switches will work VHF and HF. Haven't tried them though as I am to cheap.  :suicide:
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Offline Jackalope

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Re: Antenna Switches
« Reply #2 on: December 04, 2020, 01:51:48 PM »
I'm using Alpha Delta switches with surge suppression, they're rated to a minimum of 500 MHz.  You can find them used on Ebay, QTH.com, QRZ.com, or eHam.com.  The switches are military rated, so they're durable and well made.  There's plenty of isolation, here's the Alpha-Delta website: https://www.alphadeltaradio.com/