Tecsun S-2200 Professional Full Band Shortwave Desktop Digital Radio

Introduction

The Tecsun S-2200 is a professional-grade full-band desktop digital radio designed for enthusiasts and general listeners alike. It offers high sensitivity and selectivity across multiple frequency bands, including FM stereo, Medium Wave (MW), Long Wave (LW), Shortwave (SW), Single Sideband (SSB), and Civilian Aeronautical Band (AIR). This manual provides detailed instructions for setting up, operating, and maintaining your S-2200 radio to ensure optimal performance and longevity.

Figure 1: Front view of the Tecsun S-2200 Professional Radio.

Setup

1. Power Supply

The Tecsun S-2200 offers flexible power options:

• Batteries: Requires four D-size (UM1) batteries. Insert them into the battery compartment located at the rear of the unit. (Note: Batteries are not included.)
• AC Power: Connect the radio to a ~220V/50Hz AC power source using the internal AC power supply.
• DC Power: Use an external DC 6V/500mA power adapter. Ensure the adapter has a negative polarity (positive outside, negative inside) with an outside diameter of Φ5.5mm and a core diameter of Φ2mm. (Note: DC adapter is not included.)

Figure 2: Rear view showing the battery compartment for D-size batteries.

2. Antenna Connections

The radio features both internal and external antenna options:

• Internal Antenna:
  • Telescoping Whip Antenna (1200mm): Used for FM, AIR, SW, and SSB bands. Extend fully for best reception.
  • Ferrite Rod Antenna (Φ 10 x 120mm): Used for Long Wave (LW) and Medium Wave (MW) bands (100kHz through 1800kHz).
• External Antenna Input:
  • SW: 50 Ω (BNC type) or 500 Ω.
  • FM/AIR: 50 Ω (BNC type).

An internal/external antenna selection switch is provided to choose your preferred antenna source. Ensure the correct antenna is selected for the band you wish to receive.

Figure 3: Left side panel with external antenna input jacks (FM ANT, SW ANT, EXT ANT, GND).

3. Audio Connections

• Earphone Jack: A Φ 3.5mm stereo jack is available for connecting earphones (8~32 Ω impedance).
• Line Output Jack: Left/Right channel stereo line output jacks are provided for connecting to an external power amplifier or recording device.

Figure 4: Rear panel showing Line Out (L/R) connections and right side DC 6V power input.

Operating Instructions

1. Band Selection and Tuning

The S-2200 supports reception across a wide range of bands:

• FM: 76-108 MHz (adjustable for China, Japan, Europe, US frequency coverage).
• MW: 522-1620 kHz (system code 09) or 520-1710 kHz (America, system code 10).
• SW: 1711-29999 kHz.
• LW: 100-519 kHz.
• AIR: 118-137 MHz (Civilian Aeronautical Band).

Six channel selection methods are available:

1. Manual search for station frequency.
2. Direct input of frequency numbers.
3. Manual search for pre-stored stations.
4. Direct input of pre-stored station address numbers.
5. Automatic search for preview station frequencies.
6. Automatic search for preview of stored stations.

Use the multi-functional digital adjustment knob to fine-tune frequency, set time, or select memory pages and addresses.

2. Memory Functions

The radio can store up to 1000 radio frequencies using two methods:

• By Band Storage (500 address bits):
  • FM, SW, SSB, Aviation Bands: 100 stations each.
  • MW, LW: 50 stations each.
• Cross-Band Storage (500 address bits): These can be flexibly divided into 10, 20, 25, or 50 pages, allowing you to classify stored frequencies according to your preference.

The ATS (Auto Tuning Storage) function allows the radio to automatically search and store FM, MW, and LW radio frequencies. You can also use the automatic browse station function to quickly search and store your favorite frequencies.

3. Audio Enhancements

• High/Low Tone Adjustment: Adjust the high and low tones to improve sound quality and suit different program types.
• FM Stereo: Listen to FM stereo broadcasts using earphones.
• SQUELCH Function: Suppresses background noise, particularly useful for FM radio and aviation band signals.

4. Clock and Alarm Functions

• 24-Hour Clock: The radio displays time in a 24-hour format.
• Dual Timing Alarm: Set two independent alarms. You can configure the radio to turn on/off at regular times to listen to preset radio programs, or set a buzzer alarm.
• Auto Stop Alarm: The alarm function can be set to automatically stop after 1 to 90 minutes.

5. Sleep Timer

Activate the intelligent sleep automatic shutdown function at any time, with a duration configurable from 1 to 120 minutes. The radio will automatically turn off after the set period.

Maintenance

• Cleaning: Use a soft, dry cloth to clean the exterior of the radio. Do not use abrasive cleaners or solvents, as they may damage the finish.
• Battery Care: If the radio will not be used for an extended period, remove the batteries to prevent leakage and damage.
• Storage: Store the radio in a cool, dry place away from direct sunlight and extreme temperatures.

Troubleshooting

• No Power: Check that batteries are correctly inserted and charged, or that the AC/DC power connection is secure.
• Poor Reception: Extend the telescoping antenna fully for FM/SW/AIR/SSB. For MW/LW, ensure the ferrite rod antenna is positioned correctly. If using an external antenna, verify connections. Try adjusting the antenna attenuation settings (0dB, -10dB, -20dB) if signals are too strong or weak.
• No Sound: Check volume level. Ensure earphones are properly connected if using them, or that external speakers/amplifiers are connected and powered on.
• Static/Noise: Try adjusting the SQUELCH function. Move the radio away from electronic devices that may cause interference.

Specifications

User Tips

• Model Clarification: This manual pertains to the Tecsun S-2200 model. It is not the 'X' version.
• Battery Requirement: Remember that the radio does not come with batteries. You will need four D-size (UM1) batteries for portable operation.
• FM DX Reception: The S-2200's high-amplification circuit with 5-connected tuning and wide/narrow bandwidth options makes it very suitable for long-distance FM reception (FM DX). Experiment with antenna positioning and bandwidth settings for best results.
• Aviation Band Listening: When listening to aviation band signals, the SQUELCH function can significantly reduce background noise, improving clarity.
• DIY Enthusiasts: The dedicated 455kHz intermediate frequency output (AM IF OUT) socket is a valuable feature for radio enthusiasts interested in experimenting with external synchronous detectors, software radio (DSP) demodulators, or 455/12kHz frequency converters for DRM demodulation.

Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your proof of purchase for any warranty claims.