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Re: [TowerTalk] Coax Loss

 To: "Tower and HF antenna construction topics." Re: [TowerTalk] Coax Loss "Gene Smar" "Tower and HF antenna construction topics." Thu, 04 Feb 2010 12:19:49 -0500 mailto:towertalk@contesting.com>
 ```Jim: I understand your confusion: Twice as long = 3 dB more loss, right? But the loss figures for coax is given in dB per 100 feet (or meters) at a given frequency. That is, if a particular coax has a stated loss of 4 dB per hundred feet at 450 MHz, then if you double the length you get ANOTHER 4 dB of loss at 450 MHz. You double the number of dB's of loss. Hope this helps. 73 de Gene Smar AD3F ----- Original Message ----- From: "Jim Miller KG0KP" To: "TOWERTALK Reflector" Sent: Thursday, February 04, 2010 11:38 AM Subject: [TowerTalk] Coax Loss >I have struggled with this and have seen it both ways. > > Take an example of 100 feet of some coax at 5 db loss. > Is the loss at 200 feet 8 db or is it 10 db ???? > And is the loss at 50 feet 2 db or 2.5 db ???? > > Thanks, > 73, Jim > _______________________________________________ > > > > _______________________________________________ > TowerTalk mailing list > TowerTalk@contesting.com > http://lists.contesting.com/mailman/listinfo/towertalk _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk ```
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