ACR&Artex C406-N User Manual
Page 51
25-62-13
Page 51 of 109
MAR 1/13
ACR ELECTRONICS, INC / ARTEX PRODUCTS
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
C406-N (453-5060), C406-N HM (453-5061)
3-Flash
(cont.)
Antenna or installation faulty
Check with a VSWR meter. Check antenna
for opens, shorts, or a resistive ground
plane connection
Impedance presented by antenna
Lengthen or shorten antenna coax cable
length by 4 to 6 inches
Insufficient ground plane
Provide ground plane at least 12 inches in
diameter
Upright metal structure obstructing
antenna causing re-radiation
Stay at least 10-12 inches away from
upright metal structures
Low power output
Battery low
3A fuse on battery pack circuit board
faulty
Improper programming
Verify 406 MHz programming
Transmitter module faulty
Cannot be repaired in field - Return to
factory for servicing
5-Flash
Indicates there is no navigation position data present
Aircraft navigation system off
Turn on navigation system
Faulty system interface wiring or
connections
Check wiring and connections for
continuity and security
7-Flash
Indicates a battery problem
Operating time is >1 hour
Replace battery pack
Electrical circuits faulty
CODE
PROBABLE CAUSE
POSSIBLE SOLUTION