Topband: In search of resonance

Pete Smith N4ZR n4zr at contesting.com
Fri Jan 31 06:27:06 EST 2014


To my amazement, a 5000-watt AM station on 1550 KHz 5 miles away is 
enough to clobber my MFJ-259's usefulness during the day.  Fortunately 
they drop to 6 watts at local sundown (what do you suppose that is, a 
single 6L6?)

73, Pete N4ZR
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On 1/30/2014 9:22 PM, chetmoore wrote:
> Thanks for this tidbit of information.  As soon as this white manure melts
> (some people call it snow)   I will do a re-check on my shunt fed tower.  I
> think I did have at least one  dip to zero and never did find a resonance
> point.
>
> Thanks
>
> Chet N4FX
>
> -----Original Message-----
> From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of Tom W8JI
> Sent: Thursday, January 30, 2014 1:34 PM
> To: Tree
> Cc: 160; Carl Braun
> Subject: Re: Topband: In search of resonance
>
>
>> You might be dealing with AM BCB being detected by the meter - and
>> masking what you are looking for.
>>
> No, because he gets a dip to zero reactance.
>
> If that happens anywhere, there is no BCI.
>
>
> 73 Tom
>
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