Motorola V186 - Cell Phone - GSM System Planner Manual page 181

Other Part 90 Frequency Options
There are several other options that could be used depending on the availability of
frequencies or existing infrastructure.
• Section 90.235 – Secondary fixed signaling UHF or VHF high power bands. The
fixed operations are secondary to mobile voice or data operations and must be
licensed as part of the voice system. No additional channels can be added to
accommodate the fixed operations.
• 800 or 900 MHz private or commercial trunked systems – Fixed data can be added
to existing trunked systems, although they do not count toward channel loading.
• 700 MHz Guard band systems – Fixed data can be added to existing trunked
systems although they do not count toward channel loading.
• 700 MHz Public Safety systems – NPSTC (National Public Safety
Telecommunications Council) is seeking a clarification from the FCC as to whether
fixed data is permitted in the 700 MHz band in the same manner it is permitted in
the 800 MHz band.
• ASTRO 25 Digital Trunked Systems with Data option. Starting with release 6.3,
MOSCAD data systems can be added to this digital trunked infrastructure. There
are some differences in operation than with analog, so check with the MOSCAD
product group for details.
Appendix B - FCC Information
Spectrum and Regulatory Update
177