Topband: Shunt Fed Tower-Need Parts

[Pete Smith]

Years ago, W8JI suggested using RF chokes with sufficient inductance to 
"ground" the non-driven elements of my C-3Es at 160M while maintaining 
their isolation from the boom on 20-10 meters.  The driven elements are 
already grounded through the hairpin matching inductors.

73, Pete N4ZR

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On 9/30/2010 3:30 PM, Marc Wullaert ON4MA wrote:
> Hello all,
>
> I wash to busy to rebuild my C31XR insulators. The 20m reflector insulator
> wash burned while transmitting on 160m.
> Greg how did you ground the elements inside a stepper ?
> I'm replacing my tower next year and thinking to ground my reflectors and
> driving elements
> of my c31xr. Anyone  did that before ?
>
> if you wanna see some pictures of the flashover see
> http://picasaweb.google.be/ON4MApictures/C31xr_2010Shuntfed160mFire
>
> 73 Marc ON4MA
> ----- Original Message -----
> From: "Greg - ZL3IX"<zl3ix at inet.net.nz>
> To: "topband topband"<topband at contesting.com>
> Sent: Monday, September 27, 2010 7:57 AM
> Subject: Re: Topband: Shunt Fed Tower-Need Parts
>
>
>    
>>   Hi Marc,
>>
>> I have been using a SteppIR for top loading for nearly 7 years.  There
>> is no problem with doing this.
>>
>> I also took the step of grounding all elements to the boom to mazimise
>> the loading.  For some reason the SteppIR elements are floating when the
>> antenna leaves the factory.
>>
>> 73, Greg, ZL3IX
>>
>> On 2010-09-27 07:19, Marc Wullaert ON4MA wrote:
>>      
>>> Ed,
>>>
>>> I'm not shure but is it good to have a Steppir as toploading for 160m.
>>> What
>>> about the high voltages
>>> on the steppir motors and controlbox when you shuntfeed the tower ?
>>>
>>> Marc ON4MA
>>>
>>> ----- Original Message -----
>>> From: "Edward Sylvester"<navydude1962 at yahoo.com>
>>> To: "topband topband"<topband at contesting.com>
>>> Sent: Saturday, September 25, 2010 10:13 PM
>>> Subject: Topband: Shunt Fed Tower-Need Parts
>>>
>>>
>>>
>>>        
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>
>
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