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NAVIGATION SYSTEMS Description Vol. 2 17.10.52
Oct 05/06
ADF System Components Figure 17.10.52
ADF Audio
The ADF 1 and ADF 2 audio controls, on the audio control panel, are used to turn ON or OFF, and adjust the volume of, the ADF receiver audio.
ADF Audio Control
Figure 17.10.53
Tuning and Control
ADF functions are tuned and controlled via the CDUs, or through the MFD tuning windows.
NAVIGATION SYSTEMS Description Vol. 2 17.10.53
Oct 05/06
CDU Tuning
Tuning of the ADF may be carried out from the TUNE page displayed on the CDUs. ADF receiver titles, ADF 1 and ADF 2, are shown on page 1 of the TUNE page. Active frequencies appear in green on the data line directly below the corresponding radio title. There is no recall frequency line key for the ADFs.
Direct tuning from the CDU is carried out by first keying in the desired frequency on the scratchpad, followed by pushing the ADF (1 or 2) line key. This moves the scratchpad frequency to the ADF frequency line.
ADF Control Page
Selecting an ADF (1 or 2) line key with the scratchpad empty provides access to the ADF (1 or 2) CONTROL page. The ADF CONTROL page provides control display of the following:
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ADF test;
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Mode selection (ADF/ANT);
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BFO (ON/OFF); and
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ADF presets.
Selection of ADF test causes the word “TEST” to enlarge and show in cyan. The ADF bearing on the flight displays rotates clockwise 90 degrees. Test duration is approximately 10 seconds.
In the ADF mode, the ADF receiver provides bearing-to-station output to the flight displays. In the ANT mode, the ADF sensitivity is increased. It receives station signals at long range, but does not provide bearing information to the flight displays.
NOTE
When HF communications is required and the microphone is keyed, the ADF pointers will freeze during HF transmissions.
The beat frequency oscillation (BFO) function adds a 1020 Hz audio tone to the normal audio output. Depending on the method of transmission used by the ground station, BFO operation aids in making the station’s identifier signal more audible. When BFO is selected, the BFO text enlarges, and is shown in cyan.
Up to 20 preset frequencies for the ADF systems may be entered on the ADF CONTROL page. Preset frequencies are entered on the scratchpad, then selected to a preselect key. A preselect frequency is made active by first selecting the desired frequency to the scratchpad, followed by selecting the active ADF frequency.
NAVIGATION SYSTEMS Description Vol. 2 17.10.54
Oct 05/06
ADF CONTROL Page
Figure 17.10.54
NAVIGATION SYSTEMS Description Vol. 2 17.10.55
Oct 05/06
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本文链接地址：庞巴迪挑战者605公务机机组操作手册 CL605-CHAPTER 17 -导航系统 NAVIGATION SYSTEMS(25)
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