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TECSUN

V031220

AM BW

AM Bandwidth Selection

User Manual Page 15

    

Select a bandwidth to improve the intelligibility of LW/MW/SW signals.

    

AM bandwidths:         LW/MW: 2.3kHz, 3.5kHz, 5.0kHz and 9.0kHz

                                          SW: 2.3kHz, 3.5kHz, 5.0kHz and 6.0kHz

         SSB bandwidths:        0.5kHz, 1.2kHz, 2.3kHz, 3.0kHz and 4.0kHz

VOLUME CONTROL

 

User Manual Page 8

PAGE

 

-/+

Memory Page Selection 

User Manual Pages 11-14

Quick press to select the memory page (P0 - P24) for storing a frequency. P0 is the default memory 

page for ATS and can store 750 frequencies (100 each for FM/LW/MW, 250 for SW, 100 for SSB, 

and 100 for SYNC). Pages P1 - P24 can store 100 frequencies for FM/LW/MW/SW.

BASS

 

CONTROL

 

User Manual Page 20

0 – 9 KEYS 

User Manual Pages 7, 10, 13, 17 and 18

Can be used for (e.g.) direct frequency input, audio file selection, clock/alarm setting.

FM SET

 

 (key “1”) Sets the FM Frequency Range 

User Manual Page 7

With the device off, press and hold [ 1 ], followed by repeated presses to select the required frequency range. 

The display shows        ,        ,        ,        , which corresponds with 64 ~ 108MHz, 76 ~ 108MHz, 87 ~ 108MHz 

and 87.5 ~ 108MHz respectively. After selecting an appropriate frequency range, quick press [         ] to confirm, 

or wait for 2 seconds to automatically confirm.

LW ON / OFF

(key “2”)   Enables/Disables Longwave

With the device off, press and hold [ 2 ]:

“       ”:

 

  Longwave is enabled.

“          ”:  Longwave is disabled.

User Manual Page 7

9 / 10kHz

 (key “3”)  Medium Wave (AM) Step Selection 

With the device off, press and hold [ 3 ]:

“      ”: Tuning step is set at 9 kHz with a frequency range of 522~1620 kHz (suitable for Asia, Europe, Oceania).

“      ”: Tuning step is set at 10 kHz with a frequency range of 520~1710 kHz (suitable for the Americas).

User Manual Page 7

  

  (key “5”)

BACKLIGHT

With the device on, press and hold [ 5 ] to select your backlight preference.

         ”:  Backlight stays on.

“     

 

  ”: 

Backlight turns on when a button or knob is used and turns off after 5 seconds.

User Manual Page 19

 

  

 AUTO SORTING MEMORY 

(key “0”)

 

User Manual Page 12

Automatically sort all station frequencies that have been stored in the memory.

1. With the device turned off.

2. Press and hold [ 0 ] until the memory page number in the upper right corner of the display shows             ~           .

3. Sorting has completed once the memory page number stops running.

User Manual Page 17

DIGITAL AUDIO INPUT

 (left side)

Use H-501x as a computer speaker:

1. Turn on the device.

2. Quick press [ MODE ] to enter the audio player mode.

3. Use a micro-USB type-B data cable to connect to a computer.

4. Turn on the computer’s audio player. 

EARPHONES

Listen to stereo broadcasts and music with stereo headphones up to 300 ohms.

User Manual Page 20

To use H-501x as an active speaker, connect the audio output of the audio source 

to the “LINE IN” socket with a stereo audio cable. While in use, volume and tone 

can be adjusted with the [ VOLUME ], [ TREBLE ] and [ BASS ] knobs.

LINE IN

Stereo Audio Input

User Manual Page 20

LINE OUT

Stereo Audio Output 

For external amplifiers or recording equipment.

User Manual Page 20

SSB / SYNC

Single Sideband / Synchronous Detector 

User Manual Page 15

When receiving longwave / medium wave / shortwave signals:

 

Quick press to switch between AM (Amplitude Modulation) and SSB (Single Sideband).

 

Press and hold to enable the synchronous detector, the display shows “

 SYNC

 ”. 

    Quick press again to disable.

LSB

Lower Sideband 

User Manual Page 15

USB

Upper Sideband 

User Manual Page 15

WHIP ANTENNA

For FM and shortwave reception.

User Manual Page 9

VF / VM

User Manual Pages 8, 10, 12, 13 and 14

 

Quick press to switch between View Frequency (VF) and View Memory (VM) modes.

 

In VF mode, press and hold to auto scan for stations in the selected frequency band.

 

In VM mode, press and hold to auto scan stored frequencies of the selected memory page.

    Press any key (except [ DEL. ]) to stop auto scan.

Tuning Frequencies 

   

 Browsing Memory

MEM

.

Memory

User Manual Pages 11, 12 and 19

To store stations or selecting a station or audio track for the alarm feature. 

An easy way to store radio frequencies:

  

1. Tune into the frequency you want to store.

  

2. Press [ MEM. ], causing the memory location on the display to flash.

  

3. Press [ MEM. ] again to confirm, or wait for 2 seconds to confirm automatically.

User Manual Pages 14, 17

Quick press to delete stored frequencies or audio files from an inserted microSD card.

DEL.

Delete

RESET

System Reset (bottom side)

User Manual Page 22

If the radio malfunctions, use a pointy object to press the [ RESET ] button. This operation does not delete 

any stored stations.

Supports microSD cards up to 128GB.

User Manual Page 16

MicroSD Card Slot 

(bottom side)

DISPLAY 

User Manual Page 5

User Manual Pages 16, 17, 19 and 20

DISPLAY / SNOOZE

 

Snooze: When the power-on alarm time is reached (TIMER A / TIMER B), quick press the button to 

    temporarily turn off the device; it will turn on again after 5 minutes.

 

Display: While listening to radio, quick press to switch between Signal Strength/Signal-to-Noise Ratio, alarm time, 

    clock time and memory location information.

 

Display: While listening to the audio player, quick press to display the current album number and the total number of tracks 

    within the album. Quick press again to display the total number of albums and audio tracks.

 

Keylock: Press and hold, causing the “      ” icon to appear on the display. All keys and tuning knobs are disabled. 

    Press and hold again to restore the functions.

Holds two 18650 batteries. One spare battery and one for powering/charging. 

BATTERY COMPARTMENT

 (bottom side)

User Manual 
Pages 4 and 6

ENTER

Quick press to confirm entered information.

User Manual Pages 7, 10, and 17-19

AUDIO PLAYBACK CONTROLS 

User Manual Pages 16-17

[       ]      Play/Pause: Quick press

               Repeat track: Press and hold

[         ]    Previous: Quick press twice

               Restart track: Quick press

               Rewind: Press and hold

[         ]    Next: Quick press

               Fast forward: Press and hold

This device supports 16bit / 44.1kHz audio files in FLAC / WAV / APE / WMA 

and MP3 formats.

TIME

Clock Time

 

Time setting (24-hour clock)

  

1.  Press and hold [ TIME ] until the clock flashes.

  

2. Use the numeric keys to enter the time (4 digits).

 

With the device on, quick press to switch between clock and radio/MP3 display.

User Manual Page 7

MODE

Radio        Audio Player

Quick press to switch between radio and audio player mode.

User Manual Page 16

FM ANTENNA

External Antenna Socket (right side)

Socket to connect external antennas for enhancing FM reception. Caution! When using an outdoor antenna, waterproofing 

and lightning protection measures must be taken.

AM ANTENNA

External Antenna Socket (right side)

Socket to connect external antennas for enhancing long wave, medium wave (AM) and shortwave. Caution! When using an 

outdoor antenna, waterproofing and lightning protection measures must be taken.

(AM) DX / LOCAL GAIN SELECTION

User Manual Page 15

DX

: For distant or weak signals; 

NORMAL

: Standard; 

LOCAL

: For near or strong signals.

LEFT-CHANNEL SPEAKER

RIGHT-CHANNEL SPEAKER

Can be used (e.g.) to tune the frequency bands, browse through a memory page, select audio files on the microSD card.

User Manual Pages 7, 10 - 14, 16-18

TUNING

Multifunctional Knob 

KEYPAD LED   

Location Guidance Light for the Visually Impaired

Can be used (e.g.) to tune the frequency bands, select memory pages, switch between audio albums, select an AM bandwidth.

User Manual Pages 7, 10, 15, 17

Multifunctional Knob 

FINE TUNING 

User Manual Page 6

CHARGE 5V      1A

Charging Input Socket (right side)

Place a 18650 rechargeable lithium battery in either the A or B compartment, push the battery selection switch to the
related position, and then connect a 5V / 1A DC charger using a micro-USB type-B cable.

BAND SELECTION 

/

ATS

User Manual Pages 10-12

FM / FM ST.: Quick press for FM radio. While listening, quick press to select mono or stereo mode.

MW/LW: Quick press for medium wave (AM) band, quick press again to select longwave band.

SW 

-/+

: Quick press for shortwave band or to change meter bands. 

Selectable in SW: 120m / 90m / 75m / 60m / 49m / 41m / 31m / 25m / 22m / 19m / 16m / 15m / 13m / 11m 

Selectable in SSB mode: 160m / 80m / 60m / 40m / 30m / 24m / 20m / 17m / 15m / 12m / 10m

ATS: Please select an empty memory page before initiating Auto Tuning Storage.

FM/MW/LW: Press and hold the band button to automatically search and store stations.

SW: Press and hold [ SW 

-

 ] to search and store shortwave stations within all meter bands.

Press and hold [ SW 

+

 ] to search and store shortwave stations in the current meter band.

TECSUN ELECTRONIC IND. LTD.

Address:  Unit 11, 13/F, Block A, Hoi Luen Ind. Ctr., 55 Hoi Yuen Road, 
                  Kwun Tong, Kowloon, Hong Kong.
E-mail:      [email protected]            Website:  www.tecsun.com.cn         www.tecsun-audio.com

User Manual Page 18-19

Two independently programmable alarm time settings, at which point the device turns on automatically. The settings and 

operations of TIMER A and TIMER B are the same. The following uses TIMER A as an example.  

Quick press [ TIMER A ] to enable the alarm, the “      ” icon is shown on the display. Press again to disable the alarm, 

the “       ” icon is no longer displayed.

 

Setting the alarm time (with the device turned off)

  

1. Press and hold [ TIMER A ], causing the alarm time to flash in the upper right corner of the display.

  

2. While still flashing, use the numeric keys to enter the alarm time. The display then shows the alarm duration, 

        while “      ” and “      ” are flashing.

  

3. While still flashing, rotate the [ TUNING ] knob to set the duration of the alarm (01 - 60 minutes).

  

4. Quick press [ TIMER A ] to confirm the setting.

 

Alarm by Radio / Audio Player

 

  You can set the alarm so the device turns on to a radio broadcast or by playing an audio file from an inserted microSD card. 

  

1. Alarm by Radio

    

1) Turn the device on, then select a station frequency for the alarm and set an appropriate volume level.

    

2) Quick press [ MEM. ], causing the memory location in the upper right corner of the display to flash.

    

3) While flashing, quick press [ TIMER A ], causing the alarm icon “      ” to flash.

    

4) Quick press “       ” to confirm the setting.

  

2.  Alarm by Audio Player

    

1) Insert a microSD with supported audio files and then turn on the device.

    

2) Enter the audio player mode, then select the desired audio file and set an appropriate volume level.

    

3) Quick press [ MEM. ], causing “         ” to flash.

    

4) While flashing, press [ TIMER A ], causing the “         ” and “      ” icons to flash.

    

5) Quick press “       ” to confirm the setting.

TIMER A, TIMER B  

Auto Turn-On (Alarm)

POWER / SLEEP

User Manual Pages 8, 14, and 19-20

 

Power on/off: Quick press

 

Sleep Timer: With the device turned off, press and hold, then rotate the tuning knob to select the number of minutes 

    (01 – 120) you would like the radio to play before shutting off. Select “       ” to disable the Sleep Timer.

Select the battery to be used for powering/charging.

SELECT BATTERY    A      B 

(back side)

FM-stereo / Longwave / Medium Wave / Shortwave-SSB

 

    Audio Player

   

H-501

x

   QUICK START

TREBLE

 

CONTROL

 

User Manual Page 20

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