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MOTOROLA Technical Developments Volume 11 October 1990
MULTIPLE PROGRAMMABLE FREQUENCIES / CODES I CODING PROTOCOLS I ASSOCIATED OPTIONS USER SELECTABLE COVERAGE AREAS
by Tom Holmes & Tom Rudy
PROBLEM:
To receive paging services in multiple coverage areas (ie; Miami I Atlanta) on systems with different frequencies I codes I coding protocol, the user must return the pager to the RCC for reprogramming. This new invention will provide a RCC to prepmgram the capabilities of the multiple area paging systems and allow the user to easily switch to any of the preprogrammed coverage areas without RCC contact.
SOLUTION:
As the paging industry moves towards synthesized paging, this technology offers opportunity in new markets. This technology in conjunction with programmable features will provide the capability of Regional, National and International paging with only one pager. Today's pager is manufactured on a specific frequency, cap code, coding protocol and associated options to match the paging company's system parameters. For example:
XYZ Paging Company
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Coverage Area = Miami / Ft. Lauderdale / West Palm Beach
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System I Pager Configurations:
Frequency = 152.24
Coding Protocol = Pocsag 512,
Pager user is assigned a specific Cap Code = 1234567
Code B (Group Call) = 1234575
Active Address (AAAA)
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ABC Paging Company
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Coverage Area = Orlando I Ocala I Daytona Beach
System I Pager Configurations:
Frequency = 152.46
Coding Protocol = Pocsag 1200
Pager is assigned a specific Cap Code = 1234555
Code B (Group Call) = 1234563
Active Address (NNAA)
Once the pager is configured with XYZ paging requirements, the end user is limited to the coverage area offered by XYZ company. If the end user travels to a region where X...