Are there Radio Shack stores in Sweden, Mike?
I've used their plastic covered relays for homebrew antenna switches. They
worked very well. Using SWR meter and a wattmeter, I found no insertion
loss or increase in SWR.
Your question is not new to the list.
You might check the towertalk archives and see the previous discussions on
Go to http://www.contesting.com and type in 'relays towertalk' in the List
Searh box in the lefthand frame.
> -----Original Message-----
> From: firstname.lastname@example.org
> [mailto:email@example.com]On Behalf Of Mikael Larsmark
> Sent: Tuesday, February 25, 2003 11:17 AM
> To: firstname.lastname@example.org
> Subject: [TowerTalk] Relays
> I wonder what kind of relays should I pick when building antenna
> switches. The coax relays are to expensive so that is not an option.
> I have actually used car relays for a while and they seem to work
> quite ok. I would like to know though what ratings should I suppose
> to look after? How many amps, the width between the "connectors"
> etc. should they handle? Of course this depends on how much
> SWR and power I'm using but if I say that they should handle
> 1.5kW and an SWR of 2:1, atleast!?!
> //Mike (SM3WMV // SM3W)
> See: http://www.mscomputer.com for "Self Supporting Towers",
> "Wireless Weather Stations", and lot's more. Call Toll Free,
> 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
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