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I hate to say it but there sure is a bunch of ignorance here concerning VHF antennas
----- Original Message -----
From: "Wilbur Hubbard" Newsgroups: rec.boats.cruising Sent: Tuesday, November 24, 2009 4:00 PM Subject: I hate to say it but there sure is a bunch of ignorance here concerning VHF antennas Heh. Sorry Wilbur, but you haven't been following the thread. My unit wouldn't receive worth a damn - until I hooked it to a good antenna and feed. My last showed that even a lousy position, so long as I had a good feed, was fine for reception and transmission. Had me going for a bit on the radio, but it's fine. The antenna works, with just a pigtail. Nothing left but the cable... For NOW. But, did I not state that it is a condition that becomes progressively worse? Or did you forget you read it? But, suit yourself. Remember when it goes out completely when needed the most way down island that I TOLD YOU SO. Wilbur Hubbard Ya, but it's no longer an issue. It never "got worse" - it's been that way sorta forever, and until here in MH, it hadn't been an issue. Many times in Georgetown, we'd not hear very well - but everyone was a lot closer. Before then, it was a head-scratcher which got lost in the shuffle of all the other stuff which was going on simultaneously. Until here, it didn't really matter. And, having proven, with about as lousy a possible antenna position as possible, that the antenna and radio worked just fine, I'm not going to worry about it (the radio). Now, I'm just looking for the best cable for the application - lighter, more flexible, best resistance to water/salt intrusion, and best throughput. A 3db loss is half power, and given that I've got somewhere on the order of 75-80 feet, a multiplier of 1.5 on a 50' (or .75 on a 100') spec would give me my loss, using 100, 150 and 200 mHz, those covering all the VHF channels - and 150 a reasonable place if I didn't want to mess with the math. I'm surely not interested in something like 3, and would prefer something like 1 or less. Finding all of those in one cable will involve tradeoffs, for sure, but - I guess, but am willing to be convinced otherwise - the order of preference for me would be signal loss, water/salt prevention, and then ease of handling. Cost, given the relatively small amount in the scheme of things, is a distant 4th. This is only one of several places this discussion is happening, and I get constant reference to both positive and negatives on 400, 8x, 58, 142, 9913, and a few others... Let the debate continue :{)) L8R Skip Morgan 461 #2 SV Flying Pig KI4MPC See our galleries at www.justpickone.org/skip/gallery ! Follow us at http://groups.yahoo.com/group/TheFlyingPigLog and/or http://groups.google.com/group/flyingpiglog "You are never given a wish without also being given the power to make it come true. You may have to work for it however." (and) "There is no such thing as a problem without a gift for you in its hand (Richard Bach) |
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