[Elecraft] {OT} - Variation on use of a coaxial switch

[Bill Rowlett]

Been using two old B&W 5 position switches to switch between rigs and antennas. No problems, though I run 10 watts or less.

73  Bill  KC4ATU


On Dec 30, 2016, at 6:47 PM, Bob Nielsen <n7xy at n7xy.net<mailto:n7xy at n7xy.net>> wrote:

As long as there is sufficient isolation in the switch there should be no problem.  I have done exactly as you describe with my KX2 and IC-7100 using a MFJ-1702C switch, which is rated for better than 60 dB of isolation to 300 MHz.

Bob, N7XY

On 12/30/16 2:49 PM, stan levandowski wrote:
I would like to use a coaxial switch for an unintended use and I'm not sure if it's a good idea in terms of RF isolation and potential equipment damage.

I'm no expert in this area but I know this list is a wealth of expert opinion, so here's my question:


I want to buy a two position coaxial switch.  I want to connect ONE antenna to it and switch this antenna between a KX2/KXPA100 (100 watts) and a KX1 (about 3 watts). The coax cable coming from this switch to the KX2 is a short piece of RG8X and the coax cable going from this switch to the KX1 is 25' of RG-174 (yes, I already computed the dB loss and I can live with).


Am I likely to cause any damage to to either piece of equipment?


Thanks,
Stan WB2LQF



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