XHDATA D-808 User Manual Download Page 11

11

 

Radio operation

 

Memory System

 

This radio has 500 memory locations, 100 for each band, organized into 10 pages 
with 10 memory locations each. A memory location stores the station frequency 
along with the stereo setting for FM and the bandwidth for LW/MW/SW.

 

Select the desired band (MW, LW, FM, SW and AIR) first. Then to save or retrieve a 
station in memory, first establish the current memory page by pressing the PAGE 
button and then press the page number button (0

-

9).

 

Once a page is selected, a frequency is stored to a memory location within the page 
by long

-

pressing the position number button (0

-

9). To recall a saved station, just 

press the number button (0

-

9) of the memory position within the current page.

 

Auto Tune Storage (ATS)

 

This radio has the capability to scan the bands and automatically store stations into 
memory. It loads them sequentially by page, and by position within the page, over-
writing any previously stored stations. ATS is invoked by first selecting the band and 
then with a long press of the band button, FM, LW/MW, SW or AIR. ATS stores rela-
tively stronger stations, and may skip some that are audible. Also, particularly on 
shortwave, the signal strength may fade in and out, causing the station to be 
skipped. For AIR traffic, transmissions are often short and may not be active when 
the radio scans a particular frequency. 

 

Also note that for shortwave, the radio only scans within the international broad-
cast frequencies, not amateur radio or commercial bands. Refer to the SW topic.

 

Antennas

 

Antennas capture radio signals that are processed by the radio. This radio has 3 
antenna options:

 

• 

Internal ferrite bar antenna used for LW/MW

 

• 

25.5” 

telescopic whip antenna for SW/FM/AIR

 

• 

A 3.5mm jack to connect an external antenna of your choice for SW, .FM, AIR

 

Caution: Ensure that an external antenna is clear from power lines.

 

Summary of Contents for D-808

Page 1: ...1 XHDATA D 808 FM Stereo LW MW SW SSB AIR RDS Digital Signal Processing Receiver A User s Manual By Kevin Davidson Illustrations by XHDATA...

Page 2: ...adio 9 Operations and Setup 9 FM Tuning Range 9 Longwave Setup 9 Medium Wave step 9 Beep 9 Temperature 10 Setting the Clock 10 Lock 10 Display Light 10 Memory System 11 Auto Tune Storage ATS 11 Antenn...

Page 3: ...3...

Page 4: ...or MHz 6 Display temperature mode 7 Signal strength 8 Noise level 9 Band selection 10 FM Stereo signal 11 FM RDS available 12 Frequency 13 RDS Information 14 USB LSB mode 15 Squelch active AIR band on...

Page 5: ...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...

Page 6: ...6 Radio rear 28 Whip antenna used for FM SW and AIR bands 29 Kickstand 30 Battery door 18650 battery included...

Page 7: ...arefully remove the battery door back of radio and remove the battery and the tab Replace the battery taking care to align the polarity of the battery to match the diagram on the back of the radio Rep...

Page 8: ...ait until it stops The sleep timer setting can be disabled by simply turning the radio off Alarms The radio can automatically power on based on the alarm setting Alarm mode can be set on or off with t...

Page 9: ...etting press the FM button again to cycle through the three op tions 64 0 MHz 76 0 MHz 87 5 MHz Longwave The LW band is not enabled by default To enable it turn the radio off and long press the LW MW...

Page 10: ...ts after about 4 seconds with no key pressed The radio has the option to automatically set the time from an FM broadcast station the provides it refer to the RDS topic for more on this To enable autom...

Page 11: ...mory It loads them sequentially by page and by position within the page over writing any previously stored stations ATS is invoked by first selecting the band and then with a long press of the band bu...

Page 12: ...signal at all Bandwidth While radio signals are centered on one frequency they actually occupy a range of frequencies Sometimes two stations with adjacent frequencies can interfere with each other Thi...

Page 13: ...ed reception by turning stereo off The stereo setting is stored in the station memory when the frequency is saved FM RDS radio data system RDS is a means for FM radio stations to transmit data along w...

Page 14: ...or more infor mation LW longwave Longwave reception is not enabled from the factory Refer to the Settings topic for how to enable it Pressing the LW MW button when longwave is enabled switches between...

Page 15: ...60m 4750 4995 kHz 49m 5730 6200 kHz 41m 7100 7450 kHz 31m 9250 9900 kHz 25m 11500 12100 kHz 22m 13570 13870 kHz 19m 15300 15830 kHz 16m 17480 17900 kHz 15m 18900 19020 kHz 13m 21450 21850 kHz 11m 256...

Page 16: ...the display will show the sideband setting either upper sideband USB or lower sideband LSB In SSB mode the INFO button switches between the two sidebands LSB is most often used for frequencies below...

Page 17: ...knob in towards the radio and when the word Squelch appears in the display immediately rotate the tuning knob to set the squelch level The values are 1 9 and OFF The optimum level is usually the high...

Page 18: ...0 5 V AM Selectivity 80dB Number of memories 500 100 per band Battery 1 x 18650 DC input voltage 5V Power consumption 140 A off 120 mA at maximum volume Speaker 8 1 W Earphone Jack 3 5mm stereo Dimen...

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