T-45A UJPT & E2-C2 INav-03
Use and Operation of TACAN, VOR, VOR/DME
(4) A successful BIT shows these HSI indications:
(a) NAV flag masked
(b) No. 2 bearing pointer at 180 +/- 2.5 degrees
(c) Range reads 0 +/- 1 nm
(d) CDI bar centered
(e) TO indication displayed
d. Volume control knob varies audio signal level
e. Channel selector used to select desired channel
f.
Channel display window displays TACAN channel in use
4. Horizontal situation indicator (HSI)
a. TACAN range counter
(1) Indicates line-of-sight (slant range) distance: maximum
399.9 nm
(2) Warning flag (TACAN range flag) in view
(a) System power off
(b) Invalid or absent signal
(c) DME greater than 399.9 nm
b. No. 2 bearing pointer (TACAN relative bearing pointer)
indicates magnetic bearing to a tuned and valid TACAN station
c.
Red NAV flag in view
(1) System power off
(2) Invalid or absent signal
d. TO/FROM indicator displays TO or FROM depending on No. 2
pointer position in relation to selected course
e. Course deviation bar indicates up to 10 degrees of deviation
left or right from selected TACAN course
(6-99) Original
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