[TowerTalk] Baluns...just one more time.

Jim Thomson jim.thom at telus.net
Mon Dec 1 00:37:04 EST 2014

Date: Sat, 29 Nov 2014 22:49:58 +0000
From: Steve Hunt <steve at karinya.net>
To: towertalk at contesting.com
Subject: Re: [TowerTalk] Baluns...just one more time.

###  Im assuming that the top of the tower..or a qtr wave back from the
feedpoint of a yagi, say on the boom itself on a 10 or 6m yagi,  would be a low Z point ? 
I may well be wrong, depending the height of the tower, and how well
bonded it is to the ground....say via  3 x 8 foot copper clad grnd rods,
and cadwelded 2 ga  cu wire to each tower leg. 

##  any harm in bonding the braid of the coax to the boom, on the
xcvr side of any feedpoint balun ?? 

Jim   VE7RF


I'm not sure why you would say that. Are you assuming that particular 
bonding point has a low impedance to ground? If so, I wonder why?

Steve G3TXQ

On 29/11/2014 16:02, Jim Thomson wrote:
> If it was a monobander, ideally you would want to bond the braid a physical quarter wave back
> from the feedpoint.

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