Hi all, I have a President AR-711 installed in my truck with dual 4' fiberglass antennas mounted behind the cab. I was just wondering your input on this type of cb. I have have tuned the whips and it transmits and receives great. I would like to hear your input about this cb if you know about it.
This doesnt pertain to my question but it is another question. I have had numerous cbs in my truck.. basically because i keep wanting better lol. I first had a uniden 520XL installed and loved it. But because i wanted something bigger basically for looks but still a good cb i installed the good looking Cobra 29LTD. It worked great for a while then stopped working. I checked all wires and the coax and fuse and found nothing wrong. So i swapped out the Cobra for the current President cb and it works great.... any ideas of what could have happened to the cobra though??? Thanks
President AR-711
Discussion in 'CB Radio Forum' started by Woody01, Nov 15, 2009.
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It's more likely that this was going to happen ANYWAY----coincidence. Except for some very narrow things, radios don't normally cause SWR. Now, you could've been next to a metal barn or parked near another metal object that affected the swr when you had the swr bridge in line. Actually, swr changes (sometimes radically) as you drive, but you don't usually keep a bridge in line all the time so you can see it.
Just as an aside, so-called "co-phased" antennas do more harm than good on a small vehicle because they are not "in phase". That's, of course, unless you can get 'em at least 9 feet apart on the mirrors!
And that wouldn't work because you'd be constantly sideswiping other vehicles due to them sticking out so far. Performance-wise, you'd do better with ONE longer antenna in the CENTER of the truck. Co-phased antennas became popular with commercial truckers because they overcome the disadvantage of having this big metal trailer tagging along behind, and it allows the antenna system to "see around" the trailer and it is primarily directional (using the trailer as a "reflector" element). With flat bed trailers, the advantage disappears and more and more truckers (especially flat haulers) are abandoning the dual antennas.
GFsquirrellsgnwild Thanks this. -
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