XHDATA D-808 User manual

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XHDATA D-808
FM Stereo/LW/MW/SW-SSB AIR RDS
Digital Signal Processing Receiver
A User’s Manual
By Kevin Davidson
Illustraons by XHDATA

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Table of Contents
Radio - Front View 3
The Display 4
Side Controls 5
Radio Rear 6
Warnings 7
Quick Start Guide 7
Funcons and Operaon 8
Power and Charging 8
Power on Buon and Sleep Timer 8
Alarms 8
Charging the Radio 9
Operaons and Setup 9
FM Tuning Range 9
Longwave Setup 9
Medium Wave step 9
Beep 9
Temperature 10
Seng the Clock 10
Lock 10
Display Light 10
Memory System 11
Auto Tune Storage (ATS) 11
Antennas 11
Display Mode 12
Bandwidth 12
Tuning Speed 12
FM Recepon 13
FM RDS (radio data system) 13
MW (medium wave) 14
LW (longwave) 14
SW (shortwave) 15
Single Sideband (SSB) 16
AIR Band 16
Squelch 17
Reset 17
Specicaons 18

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4
The Display
1. Baery charge indicator
2. Sleep mer acve
3. Key press beep acve
4. Alarm on
5. Frequency Display is kHz or MHz
6. Display temperature mode
7. Signal strength
8. Noise level
9. Band selecon
10. FM Stereo signal
11. FM RDS available
12. Frequency
13. RDS Informaon
14. USB / LSB mode
15. Squelch acve (AIR band only)
16. Alarm acve
17. Display shows Memory locaon
18. Not available on this radio
19. Radio keys locked
20. Tuning knob speed

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Side Controls
21. External Antenna Jack (3.5mm)
22. Volume control
23. Headphone jack (3.5mm stereo)
24. Main Tuning knob (push in for fast/slow/stop)
25. Fine tuning / clarify control for SSB
26. USB Charging port
27. Radio reset buon access hole

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Radio rear
28. Whip antenna used for FM, SW and AIR bands
29. Kickstand
30. Baery door (18650 baery (included)

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Warnings
• Do not expose the radio to water, moisture or excessive humidity.
• Keep radio out of the freezer. Operang temperature range is 0° - 40° C (32° -
104° F).
• Clean with a dry cloth. Don’t use detergents or chemical solvents.
• Do not aempt to open the unit, unless you are really curious. You might break
something.
• Change the baery within one minute to avoid loss of me and other sengs.
Quick Start Guide
1. The radio is shipped with a protecve tab in the baery compartment that
prevents the baery from contacng the baery terminal. Carefully remove
the baery door (back of radio) and remove the baery and the tab. Replace
the baery taking care to align the polarity of the baery (+/-) to match the
diagram on the back of the radio. Replace the baery door.
2. Turn the radio on by pressing the orange power buon on the upper right cor-
ner of the radio.
3. Select a radio band — FM, MW, SW or AIR — then raise the volume with the
knob on the le side of the radio. Increasing volume is in the upward direcon.
4. Tune the radio by rotang the tuning knob on the upper right side of the radio.
Clockwise is increasing frequency. To tune to a staon directly, press the FREQ
buon, then the frequency. If the radio does not tune to the frequency, press
FREQ again to complete the entry.

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Funcons and Operaon
Power and charging
Power On Buon and Sleep Timer
In this manual, the terms “press” and “long press” are used. Press means to press
the buon briey. Long press means to press the buon and hold it for 2 seconds.
The orange power on buon turns the radio on. For 5 seconds, the sleep mer icon
appears on the display ashing. While the sleep mer icon is ashing, further press-
es of the Power buon increment through a list of sleep mes from 120 to 15
minutes or “on” indicang the mer is disabled. When the sleep mer is set, the
radio will automacally power o aer the selected number of minutes. The radio
cannot be turned o while the sleep mer icon is ashing — just wait unl it stops.
The sleep mer seng can be disabled by simply turning the radio o.
Alarms
The radio can automacally power on based on the alarm seng. Alarm mode can
be set on or o with the ALARM buon.
To turn the alarm on or o, turn o the radio and press the ALARM buon. Use the
up arrow buon to toggle through the three alarm modes: Wake to radio, wake to
tone and o. The alarm mode is indicated on the display with a ny speaker symbol
to the right of the word “Timer” for wake to radio, a ny bell to indicate wake to
tone, or no symbol when the alarm is o. Alarm to radio uses the most recently
tuned staon.
To set the alarm me, long-press the ALARM buon and key in the me with the
number buons. For example, to set the alarm for 21:30, long press the ALARM
buon and key 2 1 3 0. The alarm is set at the factory for 7:00 AM, turned o. The
radio does not support a 12-hour clock.

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Charging the radio
To charge the radio, plug a USB-C cable (included) into the USB jack on the right
side of the radio. (Some early versions of the radio use a USB Micro connector.) The
baery icon will cycle while the radio is charging. Charging will stop when the
baery is fully charged or aer 10 hours, whichever is rst. Note: some early ver-
sions of the radio may require long pressing the SSB buon to begin charging.
Opons and setup
FM Tuning range
The radio can be set for dierent tuning ranges that are convenient for FM broad-
casng in dierent regions of the world. With the radio o, long-press the FM
buon. The current seng, showing the lowest frequency of the band, is displayed.
To change the seng, press the FM buon again to cycle through the three op-
ons:
• 64.0 MHz
• 76.0 MHz
• 87.5 MHz
Longwave
The LW band is not enabled by default. To enable it, turn the radio o and long-
press the LW/MW buon. The radio will display the current status of the seng,
“LW ON” or “LW OFF.” To change the seng, press the LW /MW buon. When LW
is on, pressing the LW/MW selects either LW or MW. When it is o, the LW opon
is not available.
Medium Wave Step
The tuning step for medium wave (MW) can be set for 9 kHz or 10 kHz. To change
the seng, turn the radio o and long-press the 9/10 kHz buon (0). The current
seng is displayed. Press the buon again to cycle through the two opons. 10 kHz
us used in the Americas and 9 kHz in the rest of the world.
Beep
The radio as it comes from the factory beeps aer each key press. To disable this,
turn the radio o and long-press the BEEP buon (5). Unlike other opons, mulple

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presses of the buon do not toggle the opon. Long press the key to change it.
Temperature
The temperature scale for display, Fahrenheit or Cengrade, may be selected. With
the radio o, press the DISPLAY buon unl the temperature is displayed, then long
-press the number 3 to change the seng. Repeatedly press the buon to toggle
between F and C.
Seng the clock
The radio clock only supports 24-hour me display only.
To set the clock, turn the radio o and long press TIME SET. The radio will display
“TIME.” Key in the 4-digit me to set. To set the seconds, wait unl about 7 seconds
before the 00 minute, then acvate the me funcon, quickly key in the me and
then press TIME again. Note that me seng mode automacally exits aer about
4 seconds with no key pressed.
The radio has the opon to automacally set the me from an FM broadcast staon
the provides it (refer to the RDS topic for more on this). To enable automac seng,
press the TIME SET buon with the radio o. Use the up arrow key to toggle be-
tween Auto and Manual modes. Note: many FM staons to not broadcast me, and
those that do may not be accurate. You must tune the staon with that informaon
for the me to be set.
Lock
With the radio on or o, long press the INFO buon to disable the keys on the radio.
Long press again to re-enable them. This feature is useful to prevent the radio from
being turned on accidentally during handling or when packed.
Display light
The display is automacally illuminated for about 10 seconds when you press a key
or turn the tuning knob. Pressing the LIGHT buon turns it on indenitely. When
set, the light stays on even when the radio is turned o.