VOR/DME - P-12820091

Use and Operation of TACAN, VOR, VOR/DME

T-45C TS INav 03; ADV INav-01

C. VOR/DME

NOTE: The acronym VORTAC describes a facility in which a VOR and

a TACAN station are collocated. Operating characteristics are the

same as VOR/DME.

1. Same as VOR plus DME information

2. Differences from TACAN

(1) TACAN: 1025-1150 MHz, UHF (252 channels, X and Y)

(2) VOR/DME: 108.0-117.95 MHz, VHF (channel designator

for DME only)

b. Range data

(1) TACAN: DME a component of system

(2) VOR/DME: DME separate system providing range only

NOTE: DME information for the T-45C can only be received

on the TACAN. The aircraft VOR receiver configuration

does not include DME capability.

Identifier

(1) TACAN: Morse code only

(2) VOR/DME: Morse code and possibly voice

d. Voice communications (receive only)

Fig 5: HSI Display

(1) TACAN: none

Fig 6: Communication

Control Panel

(2) VOR/DME: possible, depending upon facilities

e. Errors

(1) TACAN: locks on in increments of 40 degrees from actual

azimuth

(2) VOR/DME: N/A

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