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Reviews Categories | Antennas: VHF/UHF Omnidirectional (verticals, etc) | Comet CSB-7900 / CSB-790A Help


Reviews Summary for Comet CSB-7900 / CSB-790A
Comet CSB-7900 / CSB-790A Reviews: 2 Average rating: 5.0/5 MSRP: $115.00
Description: Comet's BEST DualBand Mobile Antennas
2M/440MHz high gain antenna
Gain& Wave:
2M 7/8 wave 5.1dBi
440MHz Three 5/8 waves 7.7dBi
VSWR: 1.5:1 or less
Max Power: 150W
Length: 62"
Connector: Gold-plated PL-259
Threaded collar fold-over hinge included
More info: http://www.cometantenna.com/products.php?CatID=1&famID=4&childID=4

You can write your own review of the Comet CSB-7900 / CSB-790A.

K4TWK Rating: 5/5 Aug 28, 2007 20:10 Send this review to a friend
Good antenna  Time owned: 0 to 3 months
Good antenna!

Only issue I've had is that the lower trap came apart at the top cap. I called Comet and quickly spoke with a live person who seemed aware of a quality issue resulting in this specific problem. My name and address were quickly taken and I should have a no cost replacement waiting on me when I return home later this week. That's excellent customer service.

As a follow-up to my previous review, the replacement coil failed just as the first one did after about 1 week. I again called the support phone number and quickly had a replacement. The third one seems to be holding.

As for performance, it works great! I get great reception on both bands and SWR is always very low.
 
KI6FCI Rating: 5/5 May 29, 2007 13:02 Send this review to a friend
Takes a licking  Time owned: 6 to 12 months
After most of a year & close to 200,000 (team operation, truck never stops moving) miles on my left mirror mount this antenna is working great. The base of the antenna is about 8.5 feet off the ground so it can't help but get out great, and get hit by trees. I had to replace the lower inductor ($12.00) once after a few too many tree hits, but that's to be expected in this application. Puts out a good clean signal.

My installation is less than perfect as Freightliner Columbia trucks are made with a lot of fiberglass and make poor ground planes. SWR measured with a MFJ-259B is less than 1.7 142-149 MHz.
1.4 143.5-144.75 Mhz,
1.5 145-146 MHz,
1.6 146.25-147.25 MHz.
1.7 147.5-149 MHz

The sleeve for the fold-over hinge must be tightened with pliers or it will vibrate loose.

You can kind of see it in this pic:
http://donnerpartykitchenstaff.com/Images/OutsideOfTruckResized320.jpeg
 


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