Re[2]: [amsat-bb] trees

[Reinhard Richter <r.richter@xxxxxxxx>]

Hallo Bruce and Bob,

Saturday, July 13, 2002, 5:17:03 PM, you wrote:

> Bob V Johnson wrote:

>>Hello
>>Just how attenuating are fir trees at 2.4Ghz?  I was trying to work  into
>>Europe and could not even hear the MB.  Would a bigger dish help?  I'm
>>fairly new on AO-40 and I haven't had more fun since I lit up my first
>>vacuume tube!
>>73...Bob...W7LRD
>>Seattle
>>
> Same problem here on the East coast Bob. Trees are a major PITA, I have 
> a large walnut tree that blocks my view to the east and Southeast, and 
> last night I could barely make out the beacon through the trees, but my 
> setup pulls down a solid S7 or better then the satellite is in the clear 
> at similar squints. Trees even affect  TVRO class AO-40 setups 
> profoundly, so the only alternatives are to find a location in your yard 
> with fewer leafy obstructions to set up your dish, put the works on a 
> tower so it shoots above the trees (but Douglass Firs can get huge), or 
> get out the chainsaw.

I have the same problem here. I am active on AO-40 since May last year.
I have big trees which blocks my access to the satellite when it comes
from southwest and below 12° elevation. Unfortunately this is the
direction for the window to USA. But in winter, when the leaves
were off I could look with 2,4 GHz receive through the trees.

73,
 Reinhard
 DJ1KM                            

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