Program Search Banks - AOR AR5000 Operating Manual

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VFO SEARCH - LEVEL SQUELCH
The LEVEL SQUELCH parameter causes the receiver
to check the signal strength of active frequencies and to
only stop when the signal strength is above a
predetermined level which is programmable in 256 steps.
The limits are OFF and 1 to 255 (default OFF).
Note: It is possible that false signal levels may upset the
operation of LEVEL SQUELCH due to local noise or the
close proximity of computer systems... the lower level
settings may not be usable when high noise is present.
A value of 1 instructs the AR5000 to react to very weak
signal while a value of 255 instructs the AR5000 to react
ONLY to strong signals. Experimentation will be necessary
with different types of signal to find the best setting for
specific requirements.
Key
to access the menu.
Either use the
The
key may be used as a short cut to OFF.
If the
key is used to select OFF, use of the
and
afterwards will result in the value
continuing from whatever was last selected, this speeds
up the selection process. In fact the
used as a toggle between OFF and the new setting.
While in VFO search mode (MANUAL or SIMPLE search)
the LCD legend " -SQL" for noise squelch (normal
operation) is replaced by the legend " -SQL" to indicate
that level squelch is in operation.
To accept the changes to LEVEL SQUELCH, press
to return to a normal display (SCAN, SEARCH or
VFO mode). Alternatively you may move to the next option
(VOICE SCAN) by pressing the
VFO SEARCH - VOICE
The VOICE parameter determines the way in which an
active frequency is determined by sampling the audio
modulation. When the VOICE facility is enabled, VFO
search will only stop on active frequencies which have
modulation (such as voice) present. The AR5000 will not
remain on unmodulated frequencies (such as blank
carriers).
or
to change the value.
key may be
key.
You may find this facility useful for skipping over STRONG
signals but WEAKER noisy signals may fool the AR5000
into thinking that modulation is present as will signals which
have pilot tones or heterodynes present. Experimentation
will certainly be required with different types of signal.
The limits are OFF and 1 to 255 (default OFF).
Key
to access the menu.
Either use the
The
key may be used as a short cut to OFF.
If the
is used to select OFF, use of the
and
afterwards will result in the value continuing
from whatever was last selected, this speeds up the
selection process. In fact the
a toggle between OFF and the new setting. The "*" legend
extinguishes when the current audio has been defeated
by increasing the selected value.
While in VFO search, the LCD legend "VCS" for voice
squelch is displayed toward the top right hand side of the
LCD to indicate that voice squelch is in operation.
To accept the changes to VOICE SQUELCH, press
to return to a normal display (SCAN, SEARCH or
VFO mode).

12-4 Program search banks

It is possible to save parameters of frequency, mode,
tuning step, step-adjust, comment etc into any of the 20
program search banks for easy access at any time.
The program search banks (referred to simply as search
banks) are identified by two digit numeric legends on the
right of the LCD under the legend "BANK". They can be
easily distinguished from scan banks as the legend "
for SeaRch is displayed directly underneath.
For your convenience the microprocessor (depending on
world market area) may have been pre-programmed
(possibly with 10 or so search banks) at the factory, these
being specifically chosen for each market area.
AR5000 OPERATING MANUAL
or
to change the value.
key may be used as
PAGE 49
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