Narco Avionics HT870, Руководство оператора

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14.6.2.2 RESTORING A LOCKED OUT MEMORY LOCATION TO THE SCAN SEQUENCE
To restore a locked out channel to the scanning sequence:
1.If the radio is not in Memory Mode, then press "D" Key.
2.Depress the memory location key (M1-M9) to recall the channel to be
unlocked.
3.Depress M-SET switch.
4.Depress the "B" Key. Confirm that the letter "L" disappears from the
display signifying the return of this channel to the scanning
sequence.
5.Release M-SET switch.
6.Restore the scan direction.
14.7 VOR NAV OPERATION
The HT870 is capable of giving the user both CDI and Bearing modes of
operation.
14.7.1 CDI MODE
In the CDI Mode the Left/Right Indicator is an 11 bar display with each bar
having a 2 degree resolution.
In this mode the TO/FR legends act as the NAV flag and will indicate when a
valid signal is received. The TO or FR indication will be with respect to the
selected Radial or OBS setting.