TM 5-6675-250-20
2-16. DETERMINATION OF AZIMUTH VALUE FOR REFERENCE MIRROR (Continued)
L O C A T I O N / l T E M
A C T I ON
R E M A R K S
q.
Place the MODE SELECT switch (1) to BIAS (6)
(audible click).
r.
Rotate the CAGE-UNCAGE knob (7) on the
reference unit (8) clock-wise until the UN-
CAGED indicator (9) lights.
When operating in the dark, light from the cage-uncage indicator is visible
a t 4 5 m e t e r s . T h e i n d i c a t o r s h o u l d b e s h i e l d e d t o a v o i d d e t e c t i o n w h en
security is required.
2-77
