[600MRG] Fwd: Re: 630 with a 68ft vertical?

[Edward R Cole]

typo:  spacing is 1/4-inch.

At 10:26 AM 9/30/2020, Edward R Cole wrote:

>>Date: Wed, 30 Sep 2020 10:25:33 -0800
>>To: Jim Miller <jim at jtmiller.com>
>>From: Edward R Cole <kl7uw at acsalaska.net>
>>Subject: Re: [600MRG] 630 with a 68ft vertical?
>>
>>I put up a 43-foot inverted-L with 122-foot top wire.  Only four 
>>radials at 100-foot or less.  I built a coil 10-inch in diameter 
>>with 1.4-inch winding spacing about 11-inches long using No. 12 
>>solid copper wire (stripped std house wire).  Antenna tuned using 
>>about 2/3 of the windings.  Without top hat you would need more 
>>inductance in a loading coil.
>>
>>I made it using white plastic food cutting boards.
>><http://www.kl7uw.com/630m.htm>http://www.kl7uw.com/630m.htm
>>
>>73, Ed - KL7UW
>>
>>At 07:41 AM 9/30/2020, Jim Miller wrote:
>>>What sort of efficiency could I expect with just base loading a 
>>>68ft vertical on 630m? I have 32 radials with an average length of 100ft.
>>>
>>>For a long list of reasons I can't top load this antenna at all, 
>>>nor do I have any other antenna possibilities.
>>>
>>>I can put effort into making the loading coil as efficient as possible.
>>>
>>>Thanks!
>>>
>>>jim ab3cv
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>>
>>73, Ed - KL7UW
>>   http://www.kl7uw.com
>>Dubus-NA Business mail:
>>   dubususa at gmail.com
>
>73, Ed - KL7UW
>   http://www.kl7uw.com
>Dubus-NA Business mail:
>   dubususa at gmail.com
>______________________________________________________________
>600MRG mailing list
>Home: http://mailman.qth.net/mailman/listinfo/600mrg
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73, Ed - KL7UW
   http://www.kl7uw.com
Dubus-NA Business mail:
   dubususa at gmail.com 
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