Display And Run/Brk - AOR AR7000 Manual

Search:
The AR7000 steps through the frequency spectrum looking for transmissions, the
squelch control needs careful setting so that the background noise is just cancelled, if
the squelch is set too high, weak signals may be missed. The AR7000 steps through
the spectrum using the selected mode and step size (including automatic selection
using the automode bandplan data programmed into the AR7000 CPU). Unwanted
active frequencies may be skipped using the PASS facility.
Manual Search: Steps through the frequency spectrum from the current displayed
frequency in DIAL MODE. The legend "M.SEARCH" confirms operation. The main
dial may be used to reverse the direction of manual search, a spectrum trace is
displayed indicating progress.
Program search: The upper and lower frequency limits for the search process may
be programmed along with receive frequency, step size and direction. The search
process then takes place between these limits, looping back to the start when the
end has been reached (depending on the programmed search direction options).
Scan:
The AR7000 quickly reviews the contents of the memory channels looking for
activity. Different frequency bands and modes of reception may be scanned
together.
Manual scan: The current bank only is scanned.
Program scan: Several banks and channels may be grouped together in a single
scan adding great flexibility to the scan facility.
Note: It is normal to hear internal low volume "clicks" caused by relays inside the
AR7000 when certain frequency banks are selected.

4.2 Display and Run/Brk

While the search/scan is in progress, the screen will display the spectrum analysis
received so far (up to a maximum of 80 samples).
{figure 79}
This figure is a typical example of the LCD screen showing such activity. While the
search/scan is in action, the legend "Run" is displayed on the LCD in a red box. The
LCD legend "Brk" is displayed when the process is temporarily stopped.
Note: While the search/scan is in action only the following keys are operative:-
[RUN/BRK] [ [AGC] [SQL] [ATT] [IF SFT] [K.Lock]
The main dial and volume keys are also operative but other keys are disabled.