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GNS 530(A) Pilot’s Guide and Reference
190-00181-00 Rev. E
SECTION 16 – MESSAGES,
ABBREVIATIONS, & NAV TERMS
16-7
Select VLOC on CDI for approach - The
aircraft is inbound and within 3 nm of the FAF;
and the active approach is not a GPS-approved
approach. Verify that the VLOC receiver is tuned
to the proper frequency and press the CDI Key to
display ‘VLOC’ (directly above the CDI Key).
Set course to [###]°
- The course select for
the external CDI (or HSI) should be set to the
specified course. The message only occurs when
the current selected course is greater than 10°
different from the desired track.
Steep turn ahead
- This message appears
approximately one minute prior to a turn in one
of the following three conditions: 1) the turn
requires a bank angle in excess of 25° in order
to stay on course, 2) the turn requires a course
change greater than 175°, or 3) during a DME arc
approach the turn anticipation distance exceeds
90 seconds.
Stored data was lost
- All user waypoints, flight
plans, and system settings have been lost due to a
memory battery failure or system reset.
Terrain
- See Section 12.3 and 13.3 for complete
lists of TAWS and TERRAIN related Alerts and
Annunciations.
Terrain configuration conflict - The hardware
configuration does not match the terrain software
configuration. The operational status of the
terrain components is unknown and the unit
should be returned to a Garmin dealer for service.
Terrain configuration has changed
- The
software has detected a change in the terrain
configuration.
Terrain has failed
- The terrain functionality
self-test has failed. The operational status of the
terrain components is unknown and the unit
should be returned to a Garmin dealer for service.
Timer has expired
- The count down timer has
reached zero.
Traffic device needs service
- Either the TCAD
battery or the TCAD interrogation device has
failed. If the message persists, contact a Garmin
dealer for assistance.
Unit configuration has changed
- The GNS
530 has detected a failure (during initial power
up) in its system configuration. Some system
components may be unusable. Try cycling power
off and back on. If the message persists, contact a
Garmin dealer for assistance.
User card format unknown - A data card has
been inserted, but the format of the card is not
recognized.
VLOC has failed
- The GNS 530 has detected a
failure in its VLOC receiver. The VLOC receiver is
not available and the unit should be returned to a
Garmin dealer for service.
VLOC is not responding - Internal system-
to-system communication between the main
processor and the VLOC receiver has failed.
Operational status of the VLOC receiver is
unknown and the unit should be returned to a
Garmin dealer for service.
VLOC needs service
- The GNS 530 has
detected a failure in its VLOC receiver. The VLOC
receiver may still be usable, but the unit should be
returned (at the earliest convenience) to a Garmin
dealer for service.
VLOC remote transfer key is stuck
- The
remote VLOC transfer switch is stuck in the
enabled (or pressed) state. Try pressing the
switch again to cycle its operation. If the message