there are a couple of solutions I have tried to minimize RF in the shack. First, use a line isolator (a big one). The second, use about 10 clip on ferrite beads on the transmitter side of the line isolator. This will prevent RF from running back into the shack. Also, the Use of a tuner will help to clean up stray reactances and improve transmitter efficiency. Also, use any additional ferrite beads on the power leads for the radio and any other external connection to the radio. If you can, get some help installing some .01 pf caps on every device that is susceptible to RFI. I have had to do this with the room mates phone and computer. that was a chore, but well worth it.

-eric

On Mar 1, 2015, at 7:33 PM, Butch Bussen wrote:

> I've used these off and on over the years.  They are more suseptablde to 
> rf in the shack. At least in my experience.  I had one up for 160 through 
> ten fried the ballon last summer with my alpha, but I could never get the 
> swr down on 160, no matter what I did.  It worked fine on 75, but on 40, 
> same high swr problem.  It was resonant at around 1700 kc and nothing I 
> did, shortening both ends didn't change much.  It is worth a try and a 
> good compromise antenna for all bands.
> 73
> Butch
> WA0VJR
> Node 3148
> Wallace, ks.