UH-60Q 直升机技术手册 直升机操作手册 1(97)

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tive soft keys for ADF are as follows:
SOFT KEY  FUNCTION
NAV SELECT  Title of screen.
gADF  Edits preset, or frequency.
SETTINGS  Access RADIO NAV screen.
3.15.2.2 Radio Nav Screen. Use Radio Nav screen to change modes of operation. This screen is accessed by pressing SETTINGS soft key on NAV SELECT screen. Displays on the screen and active soft keys are as follows:
SOFT KEYs  FUNCTION
RADIO-NAV  Title of screen.
ADF  Displays bearing to radio beacon.
gADF/ANT  Toggles between direction .nding and receive only.
gNORM/TONE  Toggles between normal or tone mode of reception.
3.15.2.3 ADF Preset Screen. Use ADF preset screen to change frequency and mode settings of a preset. See Figure 3-24 for ways to access this screen. Displays on the screen and active soft keys are as follows:
SOFT KEY  FUNCTION
ADF PRESET  Title of screen.
gPRESET  Change preset number.
gNAME  Change name of preset.
gTUNE  Change tune frequency.
NORM/TONEs  Toggles between normal or tone mode of reception.
ADF/ANTs  Toggles between direction .nding or receive only mode.
RTNg  Return to previously displayed screen.

TM 1-1520-253-10

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3.15.3 Operation.
3.15.3.1 ANT (Aural Only) Operation.
1.
On CSC panel, NAV B receiver selector switch -Push on.

2.
Frequency or preset -As desired.

3.
In  either RADIO-NAV,or ADF PRESET screen, ensure ANT is in inverse video.

4.  
NAV B volume control -Adjust as desired.

 

3.15.3.2 ADF Operation.
1.
On CSC panel, NAV B monitor control -Push on.

2.
Frequency or preset -As desired.

3.
In  either RADIO-NAV,or ADF PRESET screen, ensure ADF is in inverse video.

 

If CW operation is desired:
4.  
NORM/TONE soft key -Press, until TONE is in inverse video.

5.
On CSC panel, NAV B monitor control -Ad-just as desired.

6.  
MODE SEL BRG 2 switch -ADF.

7.
Verify horizontal situation indicator (HSI) No. 2 bearing pointer displays appropriate relative bearing-to-the-station.

 

If self-test is required:
8.
Access  NAV TESTS page by pressingTST .xed function key, then NAV soft key. To start test, ADF soft key -Press, until TEST under ADF is displayed in inverse video.

9.
All indications next to TST VX, TST VYand TST VZ should read P.

10.
No. 2 bearing pointer de.ects 90° away from original reading.

11.
RTN soft key Press, to exit test screen.

12. Verify No. 2 bearing pointer returns to original reading.
3.16 RADIO RECEIVING SET AN/ASN-153 TACAN.
Radio set AN/ASN-153 is a TACAN receiver/ transmitter. It measures the slant range distance and relative bearing to a selected ground station, or an airborne beacon, and computes speed that the helicopter is .ying to or away from the from the ground station, and the time it will take to .y over the station. The system consists of a receiver transmitter, and two antennas. The TACAN is controlled by Avionics Management System (AMS). Signals are fed from the TACAN receiver transmitter to the command instru-ment system, and displayed on the HSI. Power for the AN/ ASN-153 is provided from the No. 2 dc primary bus through a circuit breaker, marked TACAN.
3.16.1 Antennas. The upper TACAN antenna is on the nose avionics door. The lower antenna is located on the underside of the tailcone. See Figure 3-1 for exact antenna locations.
3.16.2 Primary Controls and Functions. The TACAN receiver/transmitter is controlled by the AMS with CDU control screens (Figure 3-25). Operator functions are to choose frequency and mode of operation. A complete list of presets is displayed on RADIO NAV REVIEW screen, accessed through the QUICK REVIEW soft key on the MISSION DATA screen. The function of each control screen is given below.
　
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