Remember, the squelch must be advanced high enough to cancel the background
noise or the scan process will not progress as the AR7000 will
think
that it has found
a busy channel. Press [SQL] and rotate the main dial clockwise until background
noise in cancelled then press [ENT] to accept the new value.
Resultant frequency spectrum analysis (representing channel activity) will be
displayed on the lower section of the LCD (in green) as the scan process advances.
Strong signals appear as high vertical bars and weak or no signal as low bars. When
a signal above the squelch threshold is received, the scan process will stop on the
active channel and you will hear the transmission (if the volume is high enough) until
the busy signal has disappeared. Rotate the main dial to force the scan to resume in
whichever direction you choose.
3. While the scan is stopped, rotate the main dial to force the scan resume. When
the scan reaches the top channel number, it reverses back progressing toward the
lowest channel number, then advances forward again.
4. Push the [RUN/BRK] key while scanning. The scan will stop and the legend “Brk”
will be displayed on the LCD. Rotate the main dial to step through the memory
channels, a cursor (vertical dark band through the spectrum display) follows your
movement through the limits of the display window.
{figure 23}
5. Push the [ENT] key while scanning. The receiver will return to the memory mode
retaining the present frequency. Push the [ESC] key to go back to the memory
channel used prior to the selection of manual scan mode.
D-2 Program scan
1. Press the [SCAN] key while in dial mode or memory mode. The program scan
menu will appear on the LCD.
{figure 24}
2. Rotate the main dial to select your desired program scan group number. There
are eight program scan groups 0 to 7. These are not the same as the 15 memory
banks, but are special program scan groups where start / stop memory banks &
channels may be nominated along with direction of scan, time controlled scan value
etc. Any number of adjacent memory channels and banks may be nominated for
start / stop limits for each of the eight program scan groups.
3. Push the [RUN/BRK] key, the legend “P.SCAN” will be displayed along with the
legend “Run”. The program scan process will commence for the chosen memory
group (providing memory channels contain data).
The scan will stop when the active signal above squelch threshold is received. The
scan resumes either when such signal has disappeared, or in case of time controlled
scan, when the pre-determined time has elapsed. Rotate the main dial to force the
scan to resume.
{figure 25}
