---
kind: "section"
citation: "47 C.F.R. § 90.233"
title: "47"
number: "90.233"
heading: "Base/mobile non-voice operations."
url: "https://uscodex.org/cfr/47/90.233"
---

# §90.233. Base/mobile non-voice operations.


The use of A1D, A2D, F1D, F2D, G1D, or G2D emission may be authorized to base/mobile operations in accordance with the following limitations and requirements.

- (a) Licensees employing non-voice communications are not relieved of their responsibility to cooperate in the shared use of land mobile radio channels. See also §§ [90.403](/cfr/47/90.403.md) and [90.173(a)](/cfr/47/90.173.md?p=a) and [(b)](/cfr/47/90.173.md?p=b).
- (b) Authorization for non-voice emission may be granted only on frequencies subject to the coordination requirements set forth in [§ 90.175](/cfr/47/90.175.md). Non-voice operations on frequencies not subject to these requirements are permitted only a secondary basis to voice communications.
- (c) Provisions of this section do not apply to authorizations for paging, telemetry, radiolocation, automatic vehicle monitoring systems (AVM), radioteleprinter, radio call box operations, or authorizations granted pursuant to [subpart T](/cfr/47/subpartT.md) of this part.

## Notes

### Amendments

[48 FR 2794, Feb. 3, 1983, as amended at 49 FR 48711, Dec. 14, 1984; 56 FR 19602, Apr. 29, 1991; 72 FR 35195, June 27, 2007]

### Authority

Authority: 47 U.S.C. 154(i), 161, 303(g), 303(r), 332(c)(7), 1401-1473

### Source

Source: 43 FR 54791, Nov. 22, 1978, unless otherwise noted.

### Amendments

[48 FR 2794, Feb. 3, 1983, as amended at 49 FR 48711, Dec. 14, 1984; 56 FR 19602, Apr. 29, 1991; 72 FR 35195, June 27, 2007]