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The coupler tunes to the new frequency when the transmit switch is momentarily pushed. The tuning time for a new fre-quency is nominally less than one second but can take up to a maximum of six seconds. A 1000 Hz tone is heard in the headset and stops when tuning is complete. Impedance data for the previous last 50 frequencies tuned are stored in memory and reused whenever a frequency is reselected. This minimizes the tuning times for frequently used frequencies.
HF ANTENNA
The HF antenna is classified as a conformal-type antenna in that it is an integral part of the leading edge of the vertical stabilizer.
Sep 13/2004 Flight Crew Operating Manual Volume 2 REV 1 CSP 100-6
06-01-09
HF RADIO COMMUNICATION (Cont) DISPLAY CONTROL PANEL HF TUNING CONTROL
1.
Push the RADIO button on the DCP to show the radio menu on the MFD if another menu/list is active.
2.
Turn the MENU knob on the DCP to move the selection box to the HF radio (HF1 or HF2) display on the radio menu.
3.
Push the RADIO button on the DCP to show the HF CONTROL submenu on the MFD.
4.
The following operations are performed on the HF CONTROL submenu.
-Select the HF tune mode.
-Turn the MENU knob to move the selection box to the MODE control
-Turn the DATA knob or push the PUSH SELECT button to select FREQ, EMER, or MAR mode. Each click of
the DATA knob or push of the button selects the next mode option
-Select the HF transmission mode.
-Turn the MENU knob to move the selection box to the MODE control
-Turn the DATA knob or push, the PUSH SELECT button to select SIMP (simplex) or DUP (duplex) transmis-
sion mode
-Select HF emission mode.
-Turn the MENU knob to move the selection box to the emission mode control (beneath the MODE control)
-Turn the DATA knob or push the PUSH SELECT button to select LV (lower voice single sideband), UV
(upper voice single sideband), or AM (amplitude modulation) mode. Each click of the DATA knob or push or
the button selects the next mode option
-Select the HF squelch level.
-Turn the MENU knob to move the selection box to the SQUELCH control
-Turn the DATA knob or push the PUSH SELECT button to select the squelch level. Each click of the DATA
knob or push of the button selects the next squelch level option
-Select the HF power level.
-Turn the MENU knob to move the selection box to the POWER control
-Turn the DATA knob or push the PUSH SELECT button to select the squelch level. Each click of the DATA
knob or push of the button selects the next squelch level option
- Select the HF TEST mode.
-Turn the MENU knob to move the selection box to the TEST control
-Turn the DATA knob or push the PUSH SELECT button to select the TEST mode
MFD — HF CONTROL MENU
The HF CONTROL menu provides control for HF radio modes other than those available through the Radio Menu. Each HF radio installed on the aircraft has its own HF CONTROL menu. The active frequency, recall frequency, and squelch status that show on the left side of the HF CONTROL menu are identical to the HF display on the radio menu.
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