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Ok, so a friend of mine died, and at his SK auction, I picked up about 6 antenna's for about $10 each.
Some were good and some were not so good... I have a real friend who repairs my computer for free and he is into the CB radio. I cannot get him to study and get his amateur radio license and I wanted to get him involved in some type of radio - with the hopes that when he see's how much the CB radio sucks - he would want to study and take the test and get his license and quit fooling around with the CB radio... His best friend drives truck for the DOT and is a garbage man on the side. They had boxes of old CB radios, and I found a couple that still put out about 3 watts AM with good modulation. The person my friend bought his computer shop from was an Amateur Radio Operator. He gave the guy a 48' piece of RG-8 coax and 30' of tower. The tower was bent and no one wanted it - even though it was not rusted or damaged in any other way. So to help him out, I gave him the Ringo Ranger so he would at least have an outdoors antenna to play with. I know a Ringo Ranger is a dummy load - no one has to explain it to me. But at my house with 120' of Belden 9913F7 - up about 28' off the ground, with ground radials, I was able to compare it to my Solorcon A99 - which is tuned for 10 meters. The Ringo was about 1 or 2 S units less noisy and I was able to talk on 10 meters to a fellow in the Neatherlands with no problems. So I gave him the antenna, told him to wait until I got there to help put it together and tune it. When I got there, he already had it on top of the tower and was playing with it. The VSWR read 5:1 on channel 19 We tried changing the strap match on the ring and it got down to about 3:1 after we changed the match and the length a couple of times. So after a hearty supper - 4 hours after starting this fiasco, we took it down, put it on a piece of pipe out in the yard. Took a second Ringo Ranger and combined the two - to make it 11'6 long. Origionally it was around 9' I got the match down flat to about 2:1 everywhere from channel 1 to 40! That is as low as it would go. I checked the coax and there was no shorts and I used a coax calculator and even with a .66 velocity factor - the brand and type is unknown - and I didn't have a working computer at the site - the length for a piece of coax in multiples of half wavelengths would only be somewhere in the neighborhood of being 2 feet less then what the coax is. Which isn't a big deal, except that he plans on adding another 20' of tower, sometime in the future. I could give him my old Solorcon A99 and put up my new Solorcon A99 - but I am afraid that if I give away my good antenna, I might have some problems with the Solorcon... I do not have an antenna analyzer - but I could borrow one.. Yesterday was an exception - because it was a holiday and no one was around to ask if I could borrow theirs. I know the Ringo needs ground radials and I am working on doing that for him also. But I am wondering - if there might be another solution to the problem... I think 11'6 is somewhere around .33 of one wavelength on channel 19.... I usually don't ask these kinds of questions - because usually I have the answer... If a person had more then 3 watts - loosing half of it between the coax and the antenna mis match wouldn't be a problem... As it is - he doesn't have a working home phone and I can't call him and he doesn't have internet so I can't email him and there is a hill between his place and my place - about 7 miles away - max and I can't hear him.... His mobile also has a 3:1 mismatch and he put a 104 inch whip on it and is able to talk about half way between his house and my house with his mobile - on the side of a jeep about 3' off the ground... I have a legal 4 watt CB radio - which normally talks about 12 miles in all directions. I am looking for idea's on how to make the Ringo better - if that is possible. Maybe possible lengths to try - only I am afraid that if it gets too long - it will fall apart. The base is already wobbly from taking it up and down the tower 25 times last night. I don't know if there is a way to tighten the base to the first section of antenna. I would be willing to try to make it 18' long if that would be an improvement. Any idea's? |
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