what are the 800 and 900 mhz frequencies used for

slipknot · Post by **slipknot** » Wed Dec 20, 2006 2:59 pm

why would a scanner include the 800-900mhz frequencies?
does anyone know what the 800 and 900 mhz frequencies are used for?

Thanks

stevesperformance · Post by **stevesperformance** » Wed Dec 20, 2006 4:02 pm

digital trunking freqs are in that range and so are mobile phones aswell

slipknot · Post by **slipknot** » Wed Dec 20, 2006 4:11 pm

right becuase ive been trying to tune into those 800-900 frequencies on selected mobile towers from the acma database, and (not that il hear anything becuase its scrambled) basicly theres no transmittions on those frequencies weather they are scrambled and high pitched encrypted sounds or not.

Millsy · Post by **Millsy** » Wed Dec 20, 2006 4:45 pm

slipknot wrote:right becuase ive been trying to tune into those 800-900 frequencies on selected mobile towers from the acma database, and (not that il hear anything becuase its scrambled) basicly theres no transmittions on those frequencies weather they are scrambled and high pitched encrypted sounds or not.

So why are you trying if there scrambled ?

stevesperformance · Post by **stevesperformance** » Wed Dec 20, 2006 5:58 pm

here in wa motorola apco 25 is used the following freqs ranges
tx 820.0125 to 824.9875
rx 865.0125 to 869.9875

there are 200 channels.
the only place it is used is in perth
the main users are Ozitel network pty ltd , comunica pty ltd , ministy of justice , memo communications pty ltd , vetical telecoms , city of wanneroo , city of joondalup , burswood resort

slipknot · Post by **slipknot** » Wed Dec 20, 2006 6:12 pm

Millsy wrote:
slipknot wrote:right becuase ive been trying to tune into those 800-900 frequencies on selected mobile towers from the acma database, and (not that il hear anything becuase its scrambled) basicly theres no transmittions on those frequencies weather they are scrambled and high pitched encrypted sounds or not.
So why are you trying if there scrambled ?

its come to my attention becuase how can mobile phones operate if there arnt any active 800 or 900 mhz freqencies?

slipknot · Post by **slipknot** » Thu Dec 21, 2006 9:41 pm

stevesperformance wrote:here in wa motorola apco 25 is used the following freqs ranges
tx 820.0125 to 824.9875
rx 865.0125 to 869.9875

there are 200 channels.
the only place it is used is in perth
the main users are Ozitel network pty ltd , comunica pty ltd , ministy of justice , memo communications pty ltd , vetical telecoms , city of wanneroo , city of joondalup , burswood resort

thats a start. Thanks