If the Comprod is really the equivalent of the Sinclair SRL235-2, I 
must respectfully disagree with this. The instruction sheet for the 
SRL235-2 says the opposite, that maximum radiation would be 
perpendicular to a line drawn as described. I can scan a page from 
the Sinclair instruction sheet to back up this statement.

Paul N1BUG


Jeff DePolo wrote:
> If all of the elements are parallel as in your photo, then it's
> bi-directional.  If you drew a line through one element, through the mast,
> and through the other element, maximum radiation would be along that axis.
> 
> If the elements are staggered such that each bay pair is rotated 90 degrees
> from the bay above/below it, then it's basically omnidirectional. 
> 
>                               --- Jeff
> 
>> -----Original Message-----
>> From: [email protected] 
>> [mailto:[email protected]] On Behalf Of Jesse Lloyd
>> Sent: Tuesday, June 23, 2009 8:28 PM
>> To: [email protected]
>> Subject: [Repeater-Builder] SRL235-2 Bi-Directional Antenna, 
>> which direction has gain?
>>
>>
>>
>> Hi all,
>>
>>
>> I acquired a Comprod equivalent to the SRL235-2.  Basically 
>> the same, just heavier duty and the cabling harness is in the 
>> boom.  Anyway, which way is it directional?  In the case of 
>> this picture of one 
>> http://www.repeater.n1bug.com/sinclairant.jpg 
>> <http://www.repeater.n1bug.com/sinclairant.jpg>   is it 
>> diectional through the dipoles, or 90 degrees from them, ie 
>> in the diection of the tower (and opposite to) in that case.
>>
>>
>> Thanks,
>>
>> Jesse

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