AOR AR7000 Wideband Reciever Quick Reference Guide

 
  graphically show such radio activities while the search is in progress (rather like an 
aeroplane vapour trail).  It is possible to tune the radio by tracing a cursor onto the 
frequency you want to monitor (using the main dial).  There are two types of search, 
Manual search and Program search. 
 
 
C-1 Manual search 
 
When the AR7000 is in the “DIAL” mode (either VFO-A or VFO-B on the upper line of 
the large frequency readout) the manual search can be used. 
 
1. Push the [RUN/BRK] key while in...

 
  3. Push the [RUN/BRK] key to start the program search process, the LCD displays 
the legends “P.SEARCH” (in light blue) and “Run” (in red) to confirm selection. 
 
{figure 19}   
 
Remember, the squelch must be advanced high enough to cancel the background 
noise or the search process will not progress as the AR7000 will 
think that it has 
found a busy frequency.  Press [SQL] and rotate the main dial clockwise until 
background noise in cancelled then press [ENT] to accept the new value....

 
   
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...

 
   
4. Push the [RUN/BRK] key while scanning to pause the scan process.  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 26} 
 
5. Push the [ENT] or [ESC] key to return to the program scan menu to make changes 
or to select a different scan group.  
 
6. Push the [ESC] key to go back to...

 
   
{figure 32} 
 
 
To adjust the squelch threshold level 
 
Press the [SQL] key to toggle “OPN” and “S-meter value”.  While S-meter value is 
indicated, rotate the main dial or push the [®] or [¬] keys to vary the squelch S-
meter value.  
 
Push the [ENT] key when you have selected the desired value.  
 
{figure 33} 
 
The squelch value is indicated as a blue line displayed underneath the S-meter. 
 
Note: The scan/search will only begin when the background signal (noise) is below 
squelch...

 
  away from adjacent channel interference, especially on the short wave and medium 
wave bands. 
 
{figure 36} 
 
 
Operating the IF Shift 
Press the [IF SFT] key, the IF SHIFT legend will reverse to a negative image to 
confirm selection.   
 
Each press of the [IF SFT] key will toggle the status between current value and OFF.  
Either rotate the main dial or press the [®] or [¬] keys to vary the IF shift frequency 
as required.  Press the [ENT] key when the optimum IF Shift frequency is obtained....

 
  i.e. for 25 kHz type [2] [5] [ENT].  Acceptable step size is anything between 0.01 kHz 
(10 Hz) and 1000 kHz (1 MHz).  The back space key [¬] will act as delete key if a 
mistake is made.  
 
When AUTO MODE is selected, the step size is selected automatically by the 
AR7000 CPU appropriate to the market area, this is taken from a detailed bandplan 
entered into the AR7000 during manufacture. 
 
{figure 40} 
 
 
2.4 Selection of receive mode 
 
The AR7000 provides the following receive modes:- 
 
AUT:...

 
   
Receive Mode    Selection of IF BW 
USB/LSB               2kHz, 2.5kHz, 3kHz 
CW1,CW2,CW3         50Hz,150Hz,250Hz,500Hz,800Hz 
AM                    3kHz,6kHz,8kHz 
WFM                   150kHz 
NFM *                  15kHz-H,  15kHz-L 
 
* NFM mode operates with a fixed 15kHz IF bandwidth but with the selectable option 
of wide audio frequency response (15kH) and narrow response (15kL). 
 
The wider the filter, the better the audio fidelity… there is an increased chance of 
adjacent channel...

 
  {figure 45} 
 
 
3.2  Memory channel 
 
In the memory channel mode, either rotate the main dial to select the memory 
channel or use the [¬] [®] keys.  Memory channels with no valid data will be ignored 
(skipped = not shown). 
 
 
3.3  Memory bank 
 
In the memory mode, press the [BANK] key.  The LCD bank legend will reverse to a 
negative image.  Either rotate the main dial or use the [¬] [®] keys to select the 
memory bank.  Press [ENT] when the desired bank number is displayed.  
 
{figure 46}...

 
  Press the [EDIT] key to select the memory function menu.  While the “>” cursor is 
along side the menu item “Ch Edit/Del”, press the [ENT] key.  The memory edit 
menu will be displayed, a quick press of the [¬] or [®] keys will highlight the 
CHANNEL (00 to 99) and BANK numbers (00 to 14) as a toggle by displaying a 
negative image over the required selection (do not hold the arrow keys too long, just 
a quick press is required).   
 
Rotate the main dial to scroll through memory channel numbers or...