SWP Gen Lee Wilson 5000
SWP Gen Lee Wilson 5000
When tuning for SWR on a SWP General Lee should it be on high power setting or low ? Can good SWR's be acheived just by adjusting the depth of antena in it's base without cutting ? In general do most people have to trim with this set up ?
I check swr's on high power. The highest mine gets is right at 1.3 and I haven't trimmed any off, but I think I will just to see how much lower I can get the swr.
Also mke sure when you check it that your at least 50 feet away from any obstacles like buildings or trees. I get out in the middle of my field to check mine.
Also mke sure when you check it that your at least 50 feet away from any obstacles like buildings or trees. I get out in the middle of my field to check mine.
Not to dissagree with rex but you allways want to check your SWR with the lowest settings you can get. If you have an amp, turn it off. Getting in the open is very important. and on trimming, there is no one size fits all applications. You will have to check yours and do what is needed.
I just regrounded my vehicle and it changed my SWR enough to have to cut almost 2" off my whip.
I just regrounded my vehicle and it changed my SWR enough to have to cut almost 2" off my whip.
Well, thats a little bit of a generalization. If you go to the thread on info for newbys there is a great piece on SWR and antennas by Thumper that will tell you what to do to get SWR set.
Basicaly, on low power on chan 1 calabrate and check, do the same on chan 40. If the swr on 1 si lower than 40 then you need to go shorter. and if 40 is lower then you need to go higher. If you have to cut, on an antenna like that just cut a 1/4" off at a time. It can take a while on some antennas and sometimes you just move it a little and there you are. just be patient and be consistant. I had to set mine after changing the grounds and it took 1 1/2 hours to set my swr correctly. It was 1am when I finished and I had to leave at 5 am to go to the cb break sat.
Basicaly, on low power on chan 1 calabrate and check, do the same on chan 40. If the swr on 1 si lower than 40 then you need to go shorter. and if 40 is lower then you need to go higher. If you have to cut, on an antenna like that just cut a 1/4" off at a time. It can take a while on some antennas and sometimes you just move it a little and there you are. just be patient and be consistant. I had to set mine after changing the grounds and it took 1 1/2 hours to set my swr correctly. It was 1am when I finished and I had to leave at 5 am to go to the cb break sat.
Well, you can start there. I would start where it came in at. If you have a lower on 1 than 40 then lower the whip into the shaft and check again. you only cut if you cant go any further and need to shorten more.Gixxer wrote:HEy thanks thats some good info ... So you always bottom out the antenna inside the shaft instead of trying to raise and lower it to get improvements in SWR .
I've heard a couple reports, on the Wilson Mag Mounts, that nothing had to be cut, and almost no adjustment needed. My Wilson 1000 included.
I kinda like the results of raising the whip about 1/16 off the bottom. That 1/16 seems to improve SWR slightly, even after a cut. I've tuned several Wilson Antennas.
Don't go cutting, searching for flat SWR across several bands of channels. If you can shape an SWR "V" between channels 1, 20, and 40, near 1.3 or lower, stop!
Cutting a whip too short is a sickening feeling, Don't ask how I know that.
Wait a minute, I'm supposed to be in "time out"
I kinda like the results of raising the whip about 1/16 off the bottom. That 1/16 seems to improve SWR slightly, even after a cut. I've tuned several Wilson Antennas.
Don't go cutting, searching for flat SWR across several bands of channels. If you can shape an SWR "V" between channels 1, 20, and 40, near 1.3 or lower, stop!
Cutting a whip too short is a sickening feeling, Don't ask how I know that.
Wait a minute, I'm supposed to be in "time out"
SWP Gen Lee Wilson 5000
I have SWP General Lee and Wilson 5000 Mag mount just read the instructions that comes with the antenna it will tell you exactly how to set the swr's. Mine are 1 across the board with a DM 2x4 installed.