DX-390 (200-0214) Operation Faxback Doc. # 3609
TURNING THE RECEIVER ON/OFF
Set VOLUME to 0 before you turn on the receiver.
After you turn on the receiver, adjust the volume
Press POWER to turn on the receiver.
The display shows the band, frequency, and signal strength. (A reading of
7 shows the strongest signal.) If you select SW, the display shows the SW
sub-band.
Press POWER again to turn off the receiver. If you use internal batteries
for primary power, the battery power indicator briefly appears on the
display.
ADJUSTING THE ANTENNA
Adjust the telescoping antenna as follows.
FM
When you listen to an FM station, fully extend the antenna and rotate it
for the best reception.
SW
For best SW reception, fully extend the antenna and point it straight up.
LW and MW (AM)
The receiver uses the internal antenna for the LW and MW (AM) bands. When
you listen to these bands, rotate the receiver for the best reception.
NOTE: To improve SW reception, connect the receiver to an external
antenna.
TUNING
To tune to a station, select the band. Then, use one of the following
tuning methods:
Direct-access tuning
Manual tuning with the arrow keys
Manual tuning with the rotary dial
Scan tuning
Memory tuning
Selecting the Band
Press FM, LW, MW, or SW to select the band. (Press MW for AM.)
Direct-Access Tuning
Follow these steps to directly tune to a station.
1. Press FREQ. The frequency display disappears.
2. Press the number buttons (and decimal button where appropriate) to
enter the frequency.
If you make a mistake, press C (cancel) to erase the last digit.
If you wait more than 15 seconds to press a button, the previous
frequency returns to the display and you must begin again at Step 1.
3. Press ENTER.
Manual Tuning with Arrow Keys
You can select a higher or lower frequency by press /\ or \/. The
frequency changes in the following increments.
|--------|--------------------|
| Band | Tuning Increment |
|--------|--------------------|
| FM | 0.1 MHz |
|--------|--------------------|
| LW | 9 kHz |
|--------|--------------------|
| MW | 9 or 10 kHz |
|--------|--------------------|
| SW | 0.005 MHz |
| (AM) | |
|--------|--------------------|
Manual Tuning with Rotary Dial
You can select a higher or lower frequency by turning ROTARY TUNING.
Set FAST/FINE/LOCK to select the rotary tuning increments or to lock the
ROTARY TUNING dial. The following table shows the tuning increments for
the FAST and FINE settings.
|------|------|-------|------|-------|
| | FM | LW | MW | SW |
|------|------|-------|------|-------|
| FAST | 0.1 | 9 kHz | 9/10 | 0.005 |
| | MHz | | kHz | MHz |
|------|------|-------|------|-------|
| FINE | 0.05 | 1 kHz | 1 kHz| 0.001 |
| | MHz | | | MHz |
|------|------|-------|------|-------|
To lock the ROTARY TUNING dial, set FAST/FINE/LOCK to lock. This keeps
you from changing the frequency if you accidentally touch the dial.
NOTE: This locks only the ROTARY TUNING dial.
Scan Tuning
To automatically tune up or down to the next frequency in the selected
band, press and hold down /\ or \/ for about 2 seconds. The receiver
scans up or down the selected band and tunes to the first frequency it
finds with a strong signal. (To scan for stations with weaker signals,
use one of the manual tuning methods.)
The SW band consists of 13 smaller sub-bands. During scan tuning in the
SW band, the receiver scans only within the selected sub-band.
To scan for a SW station, first press METER. Then, press the correct
button on the numeric keypad to select the SW sub-band.
NOTE: If you select the SW band and begin scan tuning outside one of the
SW sub-bands, the receiver scans in the selected direction. Once
the receiver begins scanning within a sub-band, it will not scan
outside that sub-band.
Memory Tuning
For easy selection, you can store the frequencies of your favorite
stations in memory. You can store up to 18 SW frequencies and up to 9
frequencies in each of the other bands.
Storing a Frequency: Follow these steps to store a frequency in memory.
1. Use direct-access or manual tuning to tune to the frequency you want
to store.
2. Press M.
3. While M flashes, enter a memory location code. For SW, select from
1-9 or 01-09. For other bands select from 1-9.
4. M stops flashing and the display shows the memory location code.
5. NOTE: If you wait more than 15 seconds to press a button, M stops
flashing and you must begin again at Step 2.
Selecting a Stored Frequency: To select a stored frequency, press FM, MW,
LW, or SW to select the band. Then, enter the memory location code.
ADJUSTING SPECIAL TUNING CONTROLS
Several controls affect the receiver's sound. Read this section to learn
how to adjust these controls.
FM MONO/FM STEREO
To improve reception for weak FM stereo stations, set FM MONO/FM STEREO to
FM MONO. The signal becomes monaural, but the sound might improve. To
return to a stereo signal, set FM MONO/FM STEREO to FM STEREO.
AM NARROW/AM WIDE
To reduce interference from adjacent stations in the SW, MW, or LW bands,
set AM NARROW/AM WIDE to AM NARROW. Otherwise, set it to AM WIDE.
RF GAIN
The RF GAIN control affects signal strength for SW reception. If the
signal is weak, turn RF GAIN toward MAX. If the sound is distorted, turn
RF GAIN toward MIN.
BFO Switch and BFO Dial
These controls help you tune to SW stations that transmit in SSB and to SW
and LW stations that transmit in CW. For more information, see "Receiving
SSB and CW Stations."
For the FM and MW bands and for SW stations that do not transmit in SSB or
CW, set the BFO switch to OFF. The BFO dial has no effect when the BFO
switch is OFF.
TONE
In all bands, adjust TONE for the best sound.
RECEIVING SSB AND CW STATIONS
Some SW and LW stations transmit in Morse Code using a form of
transmission called continuous wave (CW). Some SW stations use a special
type of voice transmission called single sideband (SSB).
To tune to a CW or SSB station, select the band and frequency and adjust
the antenna as described earlier.
In addition, set the BFO switch to ON. Then, beginning at its midpoint,
slowly adjust the BFO dial for the best sound.
(ALL-12/13/94)