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Eddie,
as I posted in the past I have seen detectable improvements in local signal strength locally by isolating and adding radials to a99's and imax,

in both cases my buddies were suffering from lip biting rfi in the shack that was causing major issues with the radios and touch lamps etc, the issues were cured by using fork handle isolators a choke near feedpoint and radials,

if you don't have bad cmc to start with I doubt you would see any change in signal,

I like DB 's new angle on signal strength at distance, it more closely fits my own experience,

antennas do perform differently especially over longer local distances,
I would be interested in a 5/8 vs vector surface wave measurement because in my experience the difference in signal between the best 5/8 antennas and a vector4000 at say 40 miles is not only a small fraction of a db from this location,

<blockquote data-quote="bob85" data-source="post: 549731" data-attributes="member: 18">Eddie,as I posted in the past I have seen detectable improvements in local signal strength locally by isolating and adding radials to a99&#039;s and imax,in both cases my buddies were suffering from lip biting rfi in the shack that was causing major issues with the radios and touch lamps etc, the issues were cured by using fork handle isolators a choke near feedpoint and radials,if you don&#039;t have bad cmc to start with I doubt you would see any change in signal,I like DB &#039;s new angle on signal strength at distance, it more closely fits my own experience,antennas do perform differently especially over longer local distances,I would be interested in a 5/8 vs vector surface wave measurement because in my experience the difference in signal between the best 5/8 antennas and a vector4000 at say 40 miles is not only a small fraction of a db from this location,</blockquote>

[QUOTE="bob85, post: 549731, member: 18"] Eddie, as I posted in the past I have seen detectable improvements in local signal strength locally by isolating and adding radials to a99's and imax, in both cases my buddies were suffering from lip biting rfi in the shack that was causing major issues with the radios and touch lamps etc, the issues were cured by using fork handle isolators a choke near feedpoint and radials, if you don't have bad cmc to start with I doubt you would see any change in signal, I like DB 's new angle on signal strength at distance, it more closely fits my own experience, antennas do perform differently especially over longer local distances, I would be interested in a 5/8 vs vector surface wave measurement because in my experience the difference in signal between the best 5/8 antennas and a vector4000 at say 40 miles is not only a small fraction of a db from this location, [/QUOTE]

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