|
PureBytes Links
Trading Reference Links
|
To clarify some of the technical aspects, both Ku (BMI, DTN, etc.) and X
band (CQG) transmission frequencies lie in the microwave region of the
spectrum. However, according to my remote sensing and image processing
references, there is a dip in the atmospheric transmission percentage of
about 10% due to water absorption (not adsorption) in the Ku band, but none
in the X band. So, the Ku band transmission frequency is affected to some
degree by atmospheric water, especially during thunderstorms.
-Tony Haas
sptradr@xxxxxxxxx wrote:
>I've notice that my older and much smaller CQG and Signal Equatorial
>microwave band dishes do not exhibit rain fade like the 1m and larger Ku
>band dishes. I suspect that the rain fade woes may be due to water
>adsorption and hence greater signal attenuation in the Ku frequency band
>than in the microwave frequency band. So a bigger dish size is not
>necessarily better, though it can't hurt.
|