AOR AR One Ultra Wide Band Reciever Instructions Manual

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The speed at which the receiver steps up or down depends upon the STEP SIZE which is   
default to AUTO. In AUTO the step size, receiver mode etc. is taken from the factory   
pre-programmed band plan but may be overridden at any time. 
 
Push the UP arrow key to tune the receiver upward in whichever step size is selected, use   
the DOWN arrow key to tune the receiver downward in frequency. 
 
2-5 Changing receive mode 
Due to the necessities of signal bandwidth, channel occupancy and transmission...

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In the absence of signal, the background white noise may appear quite loud. For ease of 
listening, the squelch control should be rotated clockwise until he background noise just   
disappears, this should be carried out while no signal is present. The point where the 
background noise is cancelled is known as threshold point. Do not advance the squelch 
control more than necessary or the receiver will appear to be desensitized and weaker 
signals will be missed. 
 
WFM – Wide Band Frequency...

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When auto-mode is in operation, receive mode and tuning step size are automatically 
selected for you by the AR-ONE microprocessor. 
 
To activate auto-mode or reconfirm its selection while in VFO mode, 
Push and hold the MODE key for more than 2 seconds. 
The AUT icon appears on the top right portion of the LCD. 
 
Note: Auto-mode is cancelled as soon as the receive mode, tuning step or other related 
data 
is changed. Remember that auto-STEP and auto-MODE are linked, reselect AUTO-MODE 
if either...

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For above reasons it is necessary to alter the STEP size according to local bandplan   
conventions. The AR-ONE has been pre-programmed at the factory with all the bandplan 
data (specific to each market area) so that the AR-ONE will automatically select the 
appropriate step size and mode for the frequency chosen. This greatly simplifies operation 
of the receiver while you are familiarizing yourself with all functions. 
 
The pre-programming of step size may be manually over-ridden so you may...

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air. However, it is not simply a case of using the narrowest filter at all times, particular 
modes 
require differing amounts of bandwidth in order to operate otherwise the receive system   
simply will not produce intelligible sound. 
 
Correct receive mode and IF bandwidth must always be selected for optimum reception. If 
the bandwidth selection is too narrow, distortion or signal break-up may occur. If the 
bandwidth selection is too wide, adjacent interference may be encountered. 
 
For this...

 25 
 
 
2-8 AGC (Automatic Gain Control) 
To change the AGC
 parameter setting, push the FUNC
 key and then push the ATT 
key. 
 
Selecting a new AGC
 parameter from the list of MANU, FAST, MID, SLOW
 by rotating the 
main tuning dial or arrow key. To accept the new AGC
 parameter, push the ENT 
key. 
 
When MANU
 is selected, a desired parameter can be entered between 0 ~ 255 
in the   
Configuration Menu. 
 
2-9 ATTENUATOR  

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Activating attenuator reduces signal to the RF input stages of the AR-ONE to prevent 
overloading due to connection to an external antenna or when the receiver is used in close 
proximity to strong transmissions. 
 
The AR-ONE has four settings for AT T (attenuator), 0 dB, 10dB, 20 dB, and AUTO. 
 
To change the AT T parameter setting, push the ATT key. 
 
Selecting a new AT T parameter from the list by rotating the main tuning dial or arrow key. 
To  
accept the new AT T parameter, push the ENT...

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To change the RF Amplifier setting, push the FUNC key and then push the 5 key. 
 
Selecting a new AMP parameter from the list of ON, OFF, AUTO by rotating the main 
tuning 
dial or arrow key. To accept the new AMP parameter, push the ENT key. 
 
 
2-11 OFFSET 
This function enables receive frequency to be quickly SHIFTED by a predetermined values,   
this makes it easy to track duplex-transmissions or check repeater inputs/outputs. Offset   
frequencies may be factory pre-programmed into the...

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use, it may appear rather long winged to toggle on/off in VFO mode. However even when 
programmed, frequency offset is in no way detrimental to normal operation. 
 
The acceptable range of frequency offset is 0 MHz to 999.999 MHz, of course if the offset is   
set to 0 MHz, the frequency will not change! Before the FREQUENCY OFFSET function 
can 
be used, it first needs to be configured (unless factory programmed for certain bands). 
 
2-11-1 Using pre-programmed frequency offset data 
To access the...

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4.  To accept the offset setting, push the ENT key.  
 
 
3    Memory channels & banks 
It is convenient to store commonly used frequencies into a memory channel along with 
mode etc, this saves having to key the data in over and over again. Memory read is very   
straightforward and quick when compared to retyping all data. 
 
3-1 Memory channel overview 
Think of memory channels as pages in a notebook each of which is numbered to identify it.   
Data may be written to each new page (memory...