Subj : Re: Moon bounce
To   : alt.ham-radio.vhf-uhf
From : Barry OGrady
Date : Sat Oct 22 2005 22:31:54

From Newsgroup: alt.ham-radio.vhf-uhf

On Fri, 21 Oct 2005 12:59:08 GMT, "Dale Parfitt" <par@parelectronics.com> wrote:

>
>"Roger wrote:.
>>>>
>>>> You also run into higher atmospheric absorption.
>>>
>>>Not true, at least at VHF and UHF:
>>>Atmospheric absorption is  a non factor in all weather conditions from VHF
>>>into the lower microwave bands.
>>
>> I find clouds and particularly rain to be real problems.
>> above 440.
>That's very odd considering rain has zero effect on 4.2 GHz satellite TVRO 
>transmissions (  C Band) and 432 is a decade lower in frequency.
>Also zero effect on  432/1296/2304 MHz amateur satellite work.

Rain attenuation of sattelite TV is well known.

>
>Guess I'll bite- Given there is no literature to support this  ( IEEE 
>Journal on Propagation, professional texts, amateur publications etc) ) how 
>do you know clouds play a role in your diminished 440 work?
>Dale W4OP
>

Barry
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