[50mhz] 5 over 5 stacking recommendations

Dave Edwards kd2e at comcast.net
Sun May 6 09:41:11 EDT 2007


Lance is right. Even a single hy gain 66B would be a better choice.
...Dave
----- Original Message ----- 
From: "Lance Collister" <w7gj at accessoutwest.com>
To: "WD0T" <wd0t at mncomm.com>
Cc: <50mhz at mailman.qth.net>
Sent: Saturday, May 05, 2007 11:49 PM
Subject: Re: [50mhz] 5 over 5 stacking recommendations


> WD0T wrote:
>> Greetings all, first time posting here!
>> I have a question on recommended stack spacing, for using 2 cushcraft 5 
>> element 6m yagis, looking to put 2 up on a short crank up tower for the 
>> June VHF contest.  By short tower I mean a 30ft to the lower 6m antenna. 
>> I am talking about stacking one above the other.
>> What would you recommend for stack spacing using 2 of the CC 5 element, 
>> stock standard yagis?  Max gain would be nice, but also I need to not get 
>> crazy in terms of spacing distance.  I have seen in some places 
>> recommendations for .6 wavelength spacing for lower sidelobes, however I 
>> have also read that each type of antenna and height needs to be modeled 
>> to arrive at optimum spacing.
>> Any help, thoughts certainly appreciated.  Thanks so much.
>>
>> 73 God Bless! Todd WD0T
>> DN94, Pierre SD. Moderator: Ray Brown, KB0STN
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>>
>>
> Hello Todd,
>
> You are going to a lot of trouble and expense to properly stack a pair of 
> antennas far apart that are very poor to begin with.  I suggest you 
> simplify your life considerably and increase the gain of your system by 
> simply putting up something like a single M2 6M7JHV yagi.  Sorry, but life 
> is too short to see you struggle along the wrong path....  GL and VY 73, 
> Lance
>
> -- 
> Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8)
> P.O. Box 73
> Frenchtown, MT  59834  USA
> QTH: DN27UB
> TEL: (406) 626-5728
> URL: http://www.bigskyspaces.com/w7gj
> 2m DXCC #11/6m DXCC #815
>
> Moderator: Ray Brown, KB0STN
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