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TST
STO
DME
GX_05_022
COM 1
ATC-TCAS ID
1 ATC ALT ADF
ADF 1
MEMORY-1
121.82
118.02
1200 1799.5
NAV 1
TEMP-1
112.00
113.10
For Training Purposes Only
Sept 04
5-17
P I LOT T R A I N I N G GU I D E
COMMUNICATIONS
A self-test sequence of any radio is available. Press/hold the TST key with the curser
placed around the frequency or code to activate an internal test sequence of the
selected system.
The “TST” key must be held down for the duration of the test for approximately:
• 2 seconds for VHF COM and HF COM
• 5 to 7 seconds for DME, ADF
• 20 seconds for NAV (VOR/ILS)
• The TCAS test function is slightly different
After the test is complete, a green “PASS” or red “ERR (error)” legend will appear in
the window.
NOTE
If the “TST” key is held for 30 seconds or more, the radios are
automatically commanded back into normal operation.
Releasing the “TST” key for any time, immediately returns the function to normal
operation.
GX_05_023
COM 1 NAV 1
TCAS DSPY 1
ATC-TCAS
HF 1
ADF 1
RANGE: 6 2000
2000
UV
STANDBY ANT
MEMORY-1 TEMP-1
NORMAL
118.00
131.27
1605
131.10
112.00
620.0
COM 1 NAV 1
TCAS DSPY 1
ATC-TCAS
HF 1
ADF 1
RANGE: 6 2000
2000
UV
TEST
STANDBY
MEMORY-1 TEMP-1
NORMAL
118.00
131.27
1605
131.10
112.10
Note:
Not all the test events
which can be displayed are
shown. Only the ADF
Pass/Error example is
represented.
TEST
ADF-TEST
TEST
ADF PASS
TEST
ADF ERR
HF 1
HF 1
HF 1
ADF 1
ADF 1
ADF 1
SQ OR
ID
DIM
PGE
1/2
TST
STO
DME
P I LOT T R A I N I N G GU I D E
COMMUNICATIONS
5-18 For Training Purposes Only
Sept 04
Pressing the DME key deslaves the DME from the active VOR frequency, so a
different DME channel may be tuned, without changing the active VOR. Successive
presses of the DME key enables display and selection of the DME channels in VHF
and TACAN formats.
SQ
ID
DIM
PGE
1/2
TST
STO
DME
Note:
Cycling the DME function button will display the following in sequence:
VOR/ILS – VOR/ILS and DME–VOR/ILS and TACAN–VOR/ILS
VOR/ILS DME
Ident
GX_05_024
COM 1 NAV 1
DME H IZZ
TCAS DSPY 1
ATC-TCAS
HF 1
ADF 1
RANGE: 6 15423
15600
LV
1 ATC ALT ADF
MEMORY-4
NORMAL
121.82
118.02
1200 1799.5
108.30
111.90
131.1
Pressing this button in the
DME Hold configuration will
bring the cursor to the DME
Hold frequency. Using tuning
knobs, this frequency can now
be changed
In the DME Hold configuration,
first push brings cursor to the
preset frequency (cyan). Using
tuning knobs this frequency
can be changed. Subsequent
pushes will toggle between the
two frequencies.
For Training Purposes Only
Sept 04
5-19
P I LOT T R A I N I N G GU I D E
COMMUNICATIONS
DIRECT COM/NAV TUNING
To direct tune the COM, press the line select key beside the preset COM frequency
and hold for approximately 3 seconds. The following events will occur:
• The cursor will first move through the TEMP-1 selection
• The preset window will go blank
• The cursor will appear at the active frequency allowing direct tuning
To exit from direct tuning, press the line select key beside the preset COM frequency
window and hold until the preset frequency appears. Direct NAV tuning is identical.
GX_05_025
COM 1 NAV 1
TCAS DSPY 1
ATC-TCAS
HF 1
ADF 1
RANGE: 6 2000
2000
UV
STANDBY ANT
TEMP-1
NORMAL
118.00
112.00
1605 620.0
131.10
COM 1 NAV 1
TCAS DSPY 1
ATC-TCAS
HF 1
ADF 1
RANGE: 6 2000
2000
UV
STANDBY ANT
TEMP-1 TEMP-1
NORMAL
118.00
131.27 112.00
1605 620.0
131.10
Direct
Tune
TUNE
SQ
ID
DIM
PGE
1/2
TST
STO
DME
Press and
hold
GX_05_026
COM 1 NAV 1
TCAS DSPY 1
ATC-TCAS
HF 1
ADF 1
RANGE: 6 2000
2000
UV
STANDBY ANT
TEMP-1
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