[TowerTalk] Skyhawk plus 402CD

[Guy Olinger, K2AV]

The newer XM240 version of the 402CD had interaction problems, which the 402CD did not, which were somehow related to a change in element mounting methods and hardware. You are putting up a 402CD and not an XM240, right

On Tue, 6 Jun 2000 09:49:17 EDT, you wrote:

>
>In a message dated 06/06/2000 5:32:24 AM Pacific Daylight Time, 
>ve6yc@home.com writes:
>
>> This coming Saturday the local DX club will be putting up a
>>  100 foot tower. At the top will be a Bencher Skyhawk. We only
>>  have 5 feet of clearance between it and the Cushcraft 402CD.
>>  
>>  Is it a good idea to rotate the 40 to 90 deg from the tri-bander?
>>  will this help reduce the interaction with 15 on the Skyhawk?
>>  
>      If 5 feet is all you've got, it'll work. I've had 402CD's within 6 feet 
>of a tribander but I don't have any experience with the Skyhawk. What you'll 
>see is an increase in SWR the closer they are. If that's what you've got - go 
>for it. 
>
>     There's no reason to turn the 40 by 90 degrees. You can try it but I 
>don't think you'll see any improvement. The 90 degree offset scenario was 
>popular with the KLM 4L 40M beam but the Cushcraft doesn't seem to need it. 
>
>Cheers,   Steve    K7LXC
>Tower Tech 

73, Guy
k2av@contesting.com
Apex, NC, USA

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