Hey guys, new here with a question. I have a Uniden PC78LTW CB and twin 4' fiberglass helically wound antennas mounted to my aluminum tool box in pick-up bed. I first had them co-phased and got very high SWR. After doing research I realized they may be to close together so I ran cable from one and left the other as a dummy. Still got very high SWR. Way over 3 on Channel 1 and about 3 on channel 40. From what I read it seems my antenna is too short. Could this be? A 4' antenna too short? I found one web site that listed tons of reasons for high SWR. If I were to test for each of the reasons it take take forever. I am new to CB's so if anyone can help it would be greatly apreciated. And if you need more info on my set up I will try to give it to you. Thanx.
Antenna question
Discussion in 'CB Radio Forum' started by reelfinatic, Aug 20, 2009.
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The vehicle is a Ford F-150 Supercrew, Tiger Shark Antenna with RG-59 co-phased cable and RG-58 single High SWR on both set-ups.. I am using the internal SWR meter as I do not have an external SWR meter nor know anybody that has one. I also do not know of a cb shop here in central jersey.
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A simple meter like this one is all you need ....
www.sparkyscbshack.com/catalog/item/1830790/2446246.htm
99% of the CB meters work just fine -
for about $30.00.it's not the best but its a lot better than the built in meter! -
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I'll get an SWR meter and give it another try. Are twin co-phased antennas on the tool box too close together? That's what I heard. Thanx for the help.
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Baack Thanks this.
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I have several I use from my BIRD down to a 40+ year old troughline CB one that works just fine on 2 meters.....
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