(meteorobs) New Ka transmitter may be useful to Radar observers

[drobnock]

Hi
Can some one please explain why the trend (global) is to move to higher (UHF+) frequency radar and communications when searching for a decent scatter frequency. Have all VHF analogue transmitter been abandoned in favour
of digitized signals and communication? If the lower frequencies are being abandoned, are there corporations or private/public institutions using the lower frequencies for research?
George John Drobnock


Tony Beresford wrote:

> At 11:01 PM 6/7/2013, you wrote:
> >Quite interesting.
> >
> >Hope they succeed. Of course, we may have to wait a few until more
> >info about the transmitted signal could be available. But taking
> >into account that Cuba officially start migration to Terrestrial
> >Digital Television on June having a back-up is important. Right now
> >I use a TV Channel 9 transmitter for meteor detection.
> >
> >Raydel,
> >Havana, Cuba.
> >
> >
> >2013/6/5 Pat <<mailto:pat_branch at yahoo.com>pat_branch at yahoo.com>
> >NASA has a new radar system called KaBOOM which might be useful to
> >those radar observers in the SE and Cuba.
> >
> ><http://www.floridatoday.com/article/20130605/NEWS01/306040044/KSC-test-looking-up-asteroids?nclick_check=1>http://www.floridatoday.com/article/20130605/NEWS01/306040044/KSC-test-looking-up-asteroids?nclick_check=1
>
> Raydel & Pat Branch,
> The Ka band starts at 26.5 Gigahertz,goes to 40Ghz
> this is a longest wavelength in this band is 1.1cm
> so its only use for meteors is for head echoes.
> because the beam width is so small fbat is also impractical.
> then even US private citizens might find it hard
> to get receiving equipment in this range.
>
> Tony Beresford
> Adelaide Sout Australia
>
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