Hi.

A switch rated for VHF work would be less lossy, particularly since you are 
only going to have modest levels of gain.  If your coax runs are short and 
not very lossy, you might be able to live with the losses in the switch, 
and if it is a well made switch, they might not be that bad.  On the other 
hand, when I  started out, I had a little two position antenna switch that 
Radio Shack sold for CB and Ham applications that noticeably degraded the 
antenna performance even at HF frequencies, so you never can tell.  The 
best way to tell is to measure your power output at the back of the radio, 
and then measure it at the dipole end of the coax running through the 
switch.  You can tell whether the losses in your system are horrible in a 
hurry that way.  Bear in mind, that all feedlines and switches have some 
loss, so expect the readings to be somewhat lower at the antenna.  If they 
are about 10% lower, it's probably pretty normal and liveable.  If it's 50% 
lower, you probably will want to try to figure out whether you are losing a 
lot through the switch or if coax losses are eating up your power.

73,, de Lou K2LKK



At 04:01 PM 10/4/2007 -0400, you wrote:
>Hi list.
>I want to put up a 2 meter di-pole for my Kenwood TS-711A.
>I also want to be able to switch between my virtical and the di-pole,.
>I have an antenna switch from my children's band, uh, I mean my CB days, can
>I use this, or do I need a VHF switch if there is even such a thing?
>Thanks in advance for your help, and 73.
>
>
>
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Louis Kim Kline
A.R.S. K2LKK
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