[TowerTalk] Pattern Distortion caused by faulty balun?

[Tony]

On 12/30/2011 10:06 AM, Steve Hunt wrote:
> Tony,
>
> Yes, it's possible if the conducted common-mode path happens to be low
> impedance compared to the Yagi impedance, and if the balun fails in a
> way that allows large common-mode current to flow.  But that's a couple of big "IFs" and I wouldn't think it a very common occurrence.
>
> 73, Steve G3TXQ


Thanks for all Steve...

Jim Browns excellent paper on baluns is a real eyeopener. Seems there 
isn't anything commercially available that can duplicate the line 
isolation of his home brew ideas.

The F/B pattern on my M2 monobander seems fine, but then again, it's 
hard to tell what's really going on without checking to see if the M2 
balun is doing it's job.

HNY...

Tony, K2MO
>
>
> On 30/12/2011 14:44, Tony wrote:
>> All,
>>
>> Would there be any noticeable pattern changes while receiving on a Yagi
>> antenna i.e., reduced f/b f/s if it's balun became faulty? If so, could
>> this happen with a 1:1 bead type balun?
>>
>> Tony
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