[TowerTalk] F-12 EF-180B....does it resonate on other bands ??

[Larry]

I have an EF180B between a KT36XA and F12 240X. It runs parallel to ther 
booms. I never had
any luck with it on anything but 80. The KT36XA is at 100 feet, the EF180B 
at about 107 feet, and
the EF240X at 115 feet. I have a 3 relay box on the EF180B.

73, Larry   W6NWS
----- Original Message ----- 
From: "Jim Thomson" <Jim.thom at telus.net>
To: <towertalk at contesting.com>
Sent: Wednesday, January 27, 2010 8:48 AM
Subject: [TowerTalk] F-12 EF-180B....does it resonate on other bands ??


> gents
>
> Does anybody know if the  F-12   EF-180B  80m  rotary dipole  resonates on 
> any other ham band.. besides 80m ??
>
> The  EF-180B  is no longer made by F-12     It's a LL 68' long dipole.
>
> It will be mounted at the top of the mast, inline with the boom of both 
> the 20m and also 40m  yagi  below it.
> IE: 20+40m yagi pointed north, 80m dipole oriented north, but 80m dipole 
> radiates E-W.
>
> The reason I ask is.. I'm also playing with the idea of mounting a F-12 
> N1715XL   17/15m  yagi..... 17'  below the top of the tower, on a tic 
> ring.
>
> I'd like to know if the 80m dipole  will interact  with the  17/15m yagi? 
> As  is, the 80m dipole will not interact with either the 20 or 40m yagi's.
>
> I know a fellow who has a Create  CD-78   80m rotary dipole, [aprx 54' 
> long] that he sez  will  resonate on 80m.. and also 20 and  15m..go 
> figure.
>
> If worse comes to worse.. I could always  rotate the 80m dipole 
> independent  of the 17/15 yagi.
>
> Until I put the mfj on the 80m dipole,  I have no clue as to if it 
> resonates on other ham bands.
>
> I don't operate  10/12/30m  at all... and have no interest in 10/12/30m. 
> So if the 80m dipole screws up  10/12/30 m..... it's a moot point.
>
> However, 160m may be in the works.. down the road... but that will be  a 
> low priority item.. bottom of the list.  Perhaps shunt feeding the tower.. 
> or a  LL 1/4 wave sloper..dunno.
>
> Thanks... Jim    VE7RF
>
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