---
kind: "section"
citation: "47 C.F.R. § 80.293"
title: "47"
number: "80.293"
heading: "Check bearings by authorized ship personnel."
url: "https://uscodex.org/cfr/47/80.293"
---

# §80.293. Check bearings by authorized ship personnel.


The requirement for calibration by check bearings is met if:

- (a) The required verification by check bearings are made not more than 90 days prior to the date of the annual detailed inspection of the radiotelegraph station;
- (b) **The verification consists of a comparison of simultaneous visual and radio direction finder bearings.** At least one comparison bearing must be taken in each quadrant, within plus or minus 20 degrees from the following bearings relative to the ship's heading: 45 degrees; 135 degrees; 225 degrees; 315 degrees;
- (c) The verification shows the visual bearing relative to the ship's heading and the difference between the visual and radio direction finder bearing, and the date each check bearing is taken.

## Notes

### Amendments

[51 FR 31213, Sept. 2, 1986. Redesignated at 68 FR 46973, Aug. 7, 2003]

### Authority

Authority: 47 U.S.C. 151-155, 301-609; 3 U.S.T. 3450, 3 U.S.T. 4726, 12 U.S.T. 2377.

### Source

Source: 51 FR 31213, Sept. 2, 1986, unless otherwise noted.

### Amendments

[51 FR 31213, Sept. 2, 1986. Redesignated at 68 FR 46973, Aug. 7, 2003]