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Re: [TowerTalk] Balun Recommendation

To: Jim Thomson <>, <>
Subject: Re: [TowerTalk] Balun Recommendation
From: Tod Olson <>
Date: Thu, 19 Apr 2012 12:02:06 -0600
List-post: <">>
Once again, experiment trumps theory!

There is a lot of room in the ham world for polite skeptics who take the
time to run experiments, make measurements and then share the results.

Tod, K0TO

On 4/19/12 11:53 AM, "Jim Thomson" <> wrote:

>Date: Wed, 18 Apr 2012 21:47:02 -0700
>From: Jim Brown <>
>Subject: Re: [TowerTalk] Balun Recommendation
>On 4/18/2012 12:16 PM, Steve Hunt wrote:
>> Sorry to disagree again, but the CM choke dissipation DOES also depend
>> on the SWR!
>I don't buy your analysis, but I don't have time to pick it apart. :)
>73, Jim K9YC
>##  I figured that one out years ago.... and Steve is correct.  Wait, it
>gets worse.
>If the choke is mainly resistive, and it's only 1-2k,  then  toss in high
>swr.... and then
>toss in high power and high duty cycle modes = probable  overheating.
>You might
>want to re-write the tutorial.   You can easily verify the increased diss
>with  higher
>swr¹s  by using a  Fluke point + shoot IR gun...and just measure the temp
>That¹s what I tried..and it works.
>Remember what the sign at nasa sez...... one test is worth a 1000
>later... Jim  VE7RF
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