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The FM transmission in different world areas have been different defaults for de-emphasis.
For example, a value of 759 is selected in Europe, the recovered audio will sound very
muffled.
The available range is as follows:
THRU, 25uS, 50uS, 75uS, and 750uS
The audio de-emphasis can be set to automode to select the proper setting automatically.
The default is AUTO.
To access the configuration menu, push the FUNC key and then push the 7 key.
Push the down arrow key to move the cursor to "De-Emphasis" selection point.
This menu is to configure the audio de-emphasis.
Use the main tuning dial or the right arrow key or the left arrow key to select the desired
de-emphasis setting (AUTO / THRU / 25uS / 75uS or 750uS).
Push the ENT key to accept the data and return to a standard display.
Alternatively, push the ESC key to abort entry.
Or, push the down arrow key to move to the next item on the configuration menu
(PRIO-CH).
6-15 Configure PRIO-CH (Priority Channel)
The priority function enables you to carry on scanning, searching or monitoring while the
AR-ONE checks a selected frequency for activity (taken from one of the 1,000 memory
channels periodically).
The priority checking is accomplished by momentarily tuning the receive circuit to the
priority
frequency to see if it is active. If the activity is found, the AR-ONE will remain on the active
frequency until the signal disappears. If no activity is detected, the receiver returns to the
VFO frequency, scan channel or search bank from where it originated.
The priority function has a large number of applications and is particularly useful for
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