[TowerTalk] Mosley Antenna Question

Jim Thomson jim.thom at telus.net
Sat Feb 21 21:53:34 EST 2015


Date: Fri, 20 Feb 2015 22:24:06 +0000 (UTC)
From: David Gallatin via TowerTalk <towertalk at contesting.com>
Subject: Re: [TowerTalk] Mosley Antenna Question

Why are you comparing a 4 element mono band antenna to a 3 element Mosley tribander and then wondering why the Moseley comes up short? ??While I'm at it here is the 52 ohm RG-8 you earlier said during your earlier vomiting, errm I mean rant, ?has not been made since the 70s.?http://www.belden.com/techdatas/english/8237.pdf
?73,
David, AA9G

ex W5DCG and KC9EEV

##  simple.  4 el mono is 6.0 dbd per eznec.  (204-BA).   Using a stepped attenuator on RX, that is switched in 1db increments,  turns out that the mosley 33jr with no attenuation on RX provides the same signal strength 
as the 204-BA with 10 db padding dialed in.    6-10 =  negative 4 db.  My conclusion is the 33jrs not only doesn’t have any gain at all, its actually –4db. 

##  that RG-8 on ur url is strange stuff...has a 13 ga center conductor.   Most 213 u has  a 12 ga center conductor.  Foam coax has a 10 ga conductor.  My 393 teflon coax has  a 13 ga conductor. 

Jim   VE7RF 



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