On 03/03/06 12:51 am Darrel Swenson wrote:
>>> Would someone in the know explain why technically the cell phones in the
> headrest(Verizon?) Airphones don't cause the same problems as customer owned
> cell phones.
>
>> 3) Choice of frequency bands that do not conflict with COMM or NAV
> receivers
>
> Just to set the record straight...
>
> 'A' band cellular operates from:
> 824 to 835 MHz uplink (mobile to cell site)
> 896 to 880 MHz downlink (cell site to mobile)
>
> 'B' band cellular operates from
> 835 to 849 MHz uplink (mobile to cell site)
> 880 to 894 MHz downlink (cell site to mobile)
>
> "Airphone" operates from 849 to 851 and 894 to 896 MHz...
>
> Same band, same propagation characteristics, same intermod potential... The
> band was originally referred to as the "cellular expansion band". GTE
> acquired exclusive rights to use it, and sold to Verizon.
Are you referring to Verizon's cellular specifically? Our T-Mobile
service operates in the 1900MHz band
Alan NV8A
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|