PAGE 12 AR5000 OPERATING MANUAL
- OFFSET
Figure FIVE for the numeric input of frequencies, bank,
channel numbers etc.
The sequence
initiates FREQUENCY
OFFSET where the receiver will automatically jump to a
pre-programmed frequency offset, this is very useful for
checking the other side of duplex transmissions such as
the input frequency of amateur radio repeaters or VHF
marine traffic.
The sequence
then hold the
key for more
than one second activates the FREQUENCY OFFSET
menu where new offsets may be specified and saved /
recalled from one of 48 special locations for easy retrieval
at any time.
- RF GAIN
Figure SIX for the numeric input of frequencies, bank,
channel numbers etc.
The sequence
activates the RF GAIN control
in place of the squelch control. The “
N
N
N
N
N
-SQL” legend is
removed from the LCD to confirm operation. The
RF GAIN control reduces the level of amplification applied
to the receiver’s I.F. circuits. This has the effect of reducing
the sensitivity of the receiver in much the same way as
the attenuator but is more controllable.
The usual position for the AR5000 RF GAIN control is
fully anti-clockwise when the set is at its most sensitive.
As the control is rotated clockwise the S-meter will
advance to indicate what strength signal is required to
produce solid and readable results.
The control is most useful on SSB where the RF GAIN
should be adjusted so that the peaks of SSB signals just
deflect the S-meter. This will greatly reduce the level of
background noise especially during pauses in speech or
inactivity.
When the squelch control is switched off and RF GAIN
used, the legend “
N
N
N
N
N
-SQL” is removed from the top line of
the LCD slightly centre-right.
- CLOCK
Figure SEVEN for the numeric input of frequencies, bank,
channel numbers etc.
If the sequence
is keyed, the clock is displayed
on the LCD. The
SUB DIAL
may be used to select one of
two clocks (a second clock is often useful to store world
time of a regular DX site).
The sequence
then hold the
key for more
than one second activates the clock set menu where
display of 12hr / 24hr may be selected, times set for both
clocks and a three character text identifier added to each
clock.
- ALARM
Figure EIGHT for the numeric input of frequencies, bank,
channel numbers etc.
The sequence
activates the ALARM which
can be programmed to switch the receiver on automatically
as an alarm clock or for unattended recording with the
provision to program the active period between 1 and 120
minutes.
The sequence
then hold the
key for more
than one second activates the alarm set menu.
- SLEEP
Figure NINE for the numeric input of frequencies, bank,
channel numbers etc.
The sequence
activates the SLEEP facility
which can be programmed to switch the receiver off
automatically after a prescribed time period of 1 to 120
minutes... useful if you go to sleep with the AR5000 as a
bedside radio.
The sequence
then hold the
key for more
than one second activates the sleep set menu.
- OPTION
Figure ZERO for the numeric input of frequencies, bank,
channel numbers etc.
The sequence
activates the OPTION menu
where the options of DTMF tone display and T-ELMT may
be selected. If the optional boards are fitted, DE-SCR
(descrambler, not available in all countries) and CTCSS
tone selection may also be configured.
- DELETE
Used during the MHz input of frequency to separate the
MHz to the left of the frequency input from the rest of the
entry of kHz and Hz. For example the entry of 88.300000
MHz would be
Note: frequencies below 3.0 MHz (3000 kHz) are always
displayed as kHz regardless of input format.
The sequence of
while in memory recall mode
causes the displayed memory channel to be deleted.
The sequence
then hold the
key for more
than one second activates the DELETE menu where the
item to be deleted may be selected:
MEM-CH
memory channel
SEL-CH
select scan channel
M-PASS
memory channel pass
SRCH
search bank
F-PASS
frequency pass
