[TowerTalk] Stacks (optimizing gain at takeoff angle)

[Ian White, G3SEK]

 wrote:
>
>In a message dated 8/20/2000 2:42:48 PM Eastern Daylight Time, geoiii@kkn.net 
>writes:
>
>de K3BU
>>  VHF operators know that it helps if the beam is tilted up about 10 - 15 
>>  > degrees.
>>  
>>  Would you please explain the above statement?
>>  
>>  What band/bnads?
>>  What mode of propagation?
>>  How does it help?
>>  
>
>I was told by VE3DSS (one of VE3ONT vhf contest bunch) that many 6m and 2m 
>contesters found that tilting the boom up 10 to 15 degrees helped with signal 
>levels. This was compared at the site with similar antenna with boom at the 
>horizon.

It might help with short-skip Es on 6m (and occasionally 2m) but the
increasing number of people with full elevation capability for
moonbounce don't find it very useful routinely.

>
>I also I got one email stating that W6AM found this a fact.

We're back to HF again...

73 from Ian G3SEK          Editor, 'The VHF/UHF DX Book'
                          'In Practice' columnist for RadCom (RSGB)
                           http://www.ifwtech.com/g3sek

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