(a) General use channels. All systems using six or more narrowband channels in the 769-775 MHz and 799-805 MHz frequency bands must be trunked systems, except for those described in paragraph (b) of this section.
(b) Interoperability channels. Trunking is permitted only on Interoperability channels specified in § 90.531(b)(1)(iii). Trunked use must be strictly on a secondary, non-interference basis to conventional operations. The licensee must monitor and immediately release these channels when they are needed for interoperability purposes.
[66 FR 10636, Feb. 16, 2001, as amended at 72 FR 48861, Aug. 24, 2007]
Title 47 published on 2012-10-01
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