[TowerTalk] need advice on older Cushcraft 2 el 40
W0MU Mike Fatchett
w0mu at w0mu.com
Tue Dec 5 10:37:29 EST 2017
The XM240 uses a capacitor balun which get mixed reviews. I would use
the current Balun that K9YC recommends. 8 turns or so around the proper
clamp on ferrite material.
The SWR should be much better than that where you have it set for unless
you are having some interaction problems which you may at 12 ft.
On 12/5/2017 8:33 AM, Dave Thompson wrote:
> I am putting the older 2 el 40 up on my new Rohn 45 tower but taking it down I had to replace some hardware and the coax with the coax balun got messed up. I wound a 12 turn coil as per instructions but SWR is 1.8 to 1.
> I feel using whatever balun the XM240 uses is the easiest fix. I can't tell from the MFJ/Cushcraft catalog and I probably will use a better balun if necessary.
> Thanks in advance for the help. I don't plan on modifying the beam as I am mounting it 12 feet above another beam.
> 73 Dave K4JRB
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