Attenuator; Noise Limiter - AOR AR8200 Manual

Section 3-10-2, 3-11, 3-12
For example, use the main dial until the LCD displays "OFFSET 01", the bottom line of LCD will display
"- - - . - - - -" indicating that no offset has been previously stored. If data is stored, the offset value will be
displayed on the bottom line of the LCD and may be overridden.
Key in the desired offset in MHz format, the
made. i.e. for an offset of +1.600 MHz
push enter!)
the LCD shown "+" for positive offset. You may use the
menu (in case you haven't yet decided on the direction of offset),
input.
The LCD will revert to its operation prior to the frequency offset menu being called. The LCD legend
"DUP" will be displayed to indicate that frequency offset has been activated.
To use the frequency offset
offset value and direction and the squelch will be defeated, the duplex frequency of 434.600 MHz (which
is 1.600 MHz above the original frequency) will be displayed. When you release the
AR8200 will revert to the original frequency of 433.000 MHz (and squelch will close if no signal is
present). You can access the frequency offset menu simply to change the direction of offset from "+" to
"-" or vice-versa.

3-11 Attenuator

The attenuator adds 10dB of signal reduction to the RF input stages of the AR8200 to reduce the
possible effects of strong signal overloading due to connection to an external aerial or when the receiver
is used in close proximity to strong transmissions.
The AR8200 has two settings for ATT (attenuator), on and off.
When the attenuator is ON, the legend "ATT" appears on upper left
of the LCD.
To toggle the attenuator on/off
the legend "ATT" confirms selection and incoming signals will be
reduced in strength. To toggle on/off again just repeat the
sequence
extinguished when the attenuator is OFF.
The selection of attenuator is held separately in each VFO, each memory channel and may also be
toggled during search (in scan mode, the scanning process must be stopped in order to see which
memory channel you are applying the attenuator to!).

3-12 Noise limiter

The noise limiter can help to reduce the effects of noise spikes and pulses while listening in AM and SSB
modes (WAM, AM, NAM, USB, LSB, CW). The noise limiter may be toggled on/off in all receive modes
but will only be operational in the AM and SSB modes, it will have no effect on WFM, NFM or SFM.
38
the key to toggle the frequency offset direction between "+" and "-" until
, the LCD frequency of 433.000 MHz will alter to take account of the
, the legend "ATT" is
key may be used as a backspace should an error be
key to accept the frequency but stay in the
,
(don't
to accept the data
key, the