Performing A Page Scan - Air Only; Setting The Squelch Level; Setting The Rf Gain; Using The Menu - Sangean ATS-909X 2 Manual

There are 3 different bandwidth settings available for the
AIR and FM bands, while the SW, MW and LW bands
each have 5 different bandwidth settings:
Bandwidth Indicator
WIDEST
WIDE
NORM
NARROW
NARROWEST
To use automatic bandwidth control, place the Bandwidth
Control switch (13) in the AUTO position. The bandwidth
will now automatically be adjusted to the best setting
according to the signal to noise ratio and the radio will
keep monitoring the signal to noise ratio every 300 ms
and adjust the bandwidth if needed.
It is also possible to manually adjust the bandwidth. To do
this, follow these steps:
1.
Turn on the radio using the Power button (10).
2.
Select the desired waveband by pressing the
corresponding button.
3.
Place the Bandwidth Control switch (13) in the manual
position.
4.
Press the bandwidth button (26) repeatedly to select
the desired bandwidth.
The Bandwidth indicator (Ad) on the display shows the
currently selected bandwidth.
NOTE
The bandwidth cannot be set when using the LSB or
USB band. Pressing the Bandwidth Control button (26)
has no effect in this case.
PERFORMING A PAGE SCAN – AIR
ONLY
When using the AIR band, the AIR button (23) can be
used to perform a page scan. When performing a page
scan, the ATS-909X2 will tune to all preset stations that
are saved on the current page and stop when it finds a
station on which a signal is being received. If the signal
is no longer received for the duration of the scan delay,
the radio will continue scanning the other presets on the
current page (see chapter 6 "USING THE MENU" for
more information about setting the page scan delay).
To perform a page scan, follow these steps:
1.
Turn on the radio using the Power button (10).
2.
Select the AIR band using the AIR button (23).
3.
Select the desired page using the Page button (27).
4.
Press and hold the AIR button (23).
5.
The radio will now perform a page scan, scanning all
presets on the current page until it finds a preset that is
broadcasting a signal.
MW /
FM SW
LW
110kHz 6kHz 4kHz 6kHz
- 4kHz 3kHz
85kHz 3kHz 2.5kHz 4kHz
- 2.5kHz 1.8kHz
65kHz 1.8kHz 1kHz 2kHz
6.
If no suitable station can be found the radio will keep
scanning the selected page.
7.
To cancel the page scan, press the AIR button (23)
once again.
AIR
NOTE
The common airband is normally used for short-term
transmission. The page scan feature can monitor 9
preset stations at the same time. If a radio signal is
being received on a certain preset, the radio will stop
-
scanning and tune to that preset. When the radio no
longer receives a signal on this frequency, it will wait
0.5 second to 2 seconds (depending on the set scan
delay) and, if no signal is being received anymore, then
continue the page scan.
-

SETTING THE SQUELCH LEVEL

Background hiss or static noise is present to some
degree at every location. This is a normal phenomenon.
The Squelch button (8) can be used to set the squelch
level above the background noise level in order to skip
unwanted stations or interference when automatically
scanning, making it easier to find voice transmissions
from stronger stations.
It is recommended to keep the squelch level as low
as possible (to a level just before static noise can be
constantly heard). This way, signals that may be weak
can still be heard. If the squelch level is set too high, weak
voice transmissions may be suppressed as well.
The squelch level can be adjusted using the following
steps:
1.
Turn on the radio using the Power button (10).
2.
Press the Squelch button (8).
The Squelch indicator (N) will now be shown on the
display and 'SQUELCH' is blinking in the Text display
(U).
3.
Rotate the Tuning Control knob (16) clockwise to
increase the squelch level or counterclockwise to
decrease the squelch level.
When the receiving RF level is lower than the set
squelch level, the Squelch indicator (N) will be shown
on the display of the radio.

SETTING THE RF GAIN

The AM RF Gain jog dial (40) can be used to enhance the
gain of the RF amplifier while listening to the AM band.
A higher gain level helps receiving signals from further
away, but can also saturate the RF amplifier when the
radio is situated near a strong electric field, causing it to
no longer receive any normal signal. In this case, the RF
gain should be lowered to avoid such saturation effects.
In general, it is recommended to place the AM RF
Gain jog dial (40) in the maximum position for the best
reception.

6. USING THE MENU

The menu of the ATS-909X2 can be accessed by
pressing and holding the Menu button (29) while the
radio is powered on or off. After accessing the menu, the
Rotary Tuning knob (16) can be used to browse through
GB
F
E
NL
D
13