TECSUN H-501x can receive FM, Longwave (LW), Medium Wave (MW) and Shortwave (SW) frequency bands and is Single Sideband (SSB) capable. 

This radio receiver is equipped with an analog High-IF circuit and DSP triple conversion decoding technology. It has great performance in sensitivity, selectivity and combating interference of mirror stations (image rejection). Like other Tecsun models, it comes with a variety of "hidden features". 

The full-range dual speaker design, Class AB amplifier circuit and independent treble and bass control knobs make listening to radio stations and the added audio playback features (from a microSD card or Bluetooth pairing) even more enjoyable.


Package Contents

Special Features

• Triple conversion AM IF
• Synchronous detection & SSB
• SSB (USB / LSB) fine tuning steps at 10 Hz
• Antenna socket (3.5mm) for FM
• Antenna socket (3.5mm) for AM (LW, MW and SW)
• Audio player: music playback from microSD
• AM bandwidth settings:
  • LW/MW: 2.3, 3.5, 5.0 and 9.0kHz
  • SW: 2.3, 3.5, 5.0 and 6.0kHz
  • SSB: 0.5, 1.2, 2.3, 3.0 and 4.0kHz

Frequency Range

• FM: 64 – 108 MHz
  • 64.0 – 108 MHz
  • 76.0 – 108 MHz
  • 87.0 – 108 MHz
  • 87.5 – 108 MHz

Tuning steps of 50 kHz or 100 kHz (depends on MW steps setting). Fine tuning steps of 10 kHz.

• MW: 520 - 1710 kHz
  • 520 - 1710 kHz (tuning steps 10 kHz)
  • 522 - 1620 kHz (tuning steps of 9 kHz)

Tuning steps of 9 kHz or 10 kHz. Fine tuning steps of 1 kHz.

• LW: 50 kHz to 522 kHz
  • 100 – 519 kHz (when MW tuning is set to 10 kHz)
  • 50 – 522 kHz (when MW tuning is set to 9 kHz)

Tuning steps of 9 kHz. Fine tuning steps of 1 kHz.

• SW: 1621 kHz to 29999 kHz
  • 1711 – 29999 kHz (when MW tuning is set to 10 kHz)
  • 1621 – 29999 kHz (when MW tuning is set to 9 kHz)

Tuning steps of 5 kHz. Fine tuning steps of 1 kHz.


Tuning Methods

• Direct keypad entry
• Auto scan
• Manual dial tuning

Methods for Storing Stations (Memory)

• Manually: tune into a station using the knobs and then store them
• Storing stations during auto-scan
• Auto Tuning Storage (ATS): automatically tune and store stations
• Recall stations by browsing the memory manually or by auto-scan

Audio Player Features

• Audio playback from microSD card (max. 128GB)
• Bluetooth receiver
• Supported audio formats: 16bit / 44.1kHz, FLAC / WAV / APE / WMA and MP3.
• Basic playback controls
• Repeat single track
• Playback position memory
• Display does not show album/track name
• Computer speaker mode

Basic Features

• Signal strength and S/N ratio indication
• Clock & Alarm (24-hour format)
• 3150 stations storage locations, divided over 25 memory pages
• FM stereo / mono selection
• Dedicated tuning and fine-tuning knobs
• Alarm by radio or audio player
• Snooze function – 5 minutes
• Sleep timer from 1 - 120 minutes
• Class AB type Audio Power Amplifiers & ultra -dynamic full range speaker, with excellent sound quality
• Dedicated Bass and Treble control knobs
• LCD backlight (always-on or auto-off)
• Keylock function
• Rear metal tilt bail
• Local / Norm / DX antenna gain switch: adjust sensitivity
• Antenna socket (3.5mm) for FM
• Antenna socket (3.5mm) for AM (LW / MW / SW)
• Line-out jack (3.5mm)
• Line-in jack (3.5mm)
• Headphone jack (3.5 mm; 1/8 inch; < 300Ω)
• Digital audio input socket (micro-USB type-B)
• Speakers (6Ω, 3W x 2)
• Battery compartment holds two batteries.
• Battery selection switch to change between batteries.

Power / Charging

• Battery power: 1 x 18650 lithium (Li-ion) battery
• DC power (for FM only): 5V
• Charging/Power: DC 5V/1A

Unit Size

• 277 x 167 x 44 mm (W x H x D)

Specifications

• Sensitivity:
• FM (S / N = 30dB) < 3uV
• MW (S / N = 26dB) < 1mV/m
• LW (S / N = 26dB) < 3mV/m
• SW (S / N = 26dB) < 20uV
• SSB (S / N = 10dB) < 1uV

• Selectivity:
• FM > 65dB
• MW / LW > 40dB
• SW > 40dB

• S/N ratio:
  • FM > 60dB
  • MW / LW > 40dB
  • SW > 45dB

• SYNC lock range: +/- 1kHz
• AM IF Frequency:
• 1st IF: 55.845MHz
• 2nd IF: 10.7MHz
• 3rd IF (DSP): 45kHz

• FM IF Frequency: 128kHz
• FM Stereo Crosstalk: 33dB
• Output Power: ≥ 500mW x 2 (at 10% harmonic distortion)