Tecsun PL-330 FM/MW/SW/LW SSB DSP Full-Band Radio User Manual

1. Introduction

The Tecsun PL-330 is a multi-functional portable radio receiver designed for enthusiasts and casual listeners alike. It features DSP (Digital Signal Processing) technology for enhanced reception across various frequency bands, including FM, Medium Wave (MW), Short Wave (SW), and Long Wave (LW), with Single Sideband (SSB) communication signal reception capabilities.

This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your PL-330 radio to ensure optimal performance and longevity.

The Tecsun PL-330 radio, shown with its telescopic antenna extended and display active, indicating frequency and signal information.

A view of the Tecsun PL-330 radio, highlighting its portable design with an attached wrist strap and extended antenna.

2. Getting Started

2.1 Package Contents

Before you begin, please check the package contents to ensure all items are present:

• 1 x Tecsun PL-330 Radio
• 1 x BL-5C Lithium Battery
• 1 x USB Micro Type-B Cable
• 1 x Special Storage Bag
• 1 x Stereo Earphones
• 1 x English User Manual (PDF version available for download here)

An overview of all items included in the Tecsun PL-330 radio package.

2.2 Location of Controls

Familiarize yourself with the buttons, knobs, and display indicators on your PL-330 radio.

This diagram illustrates the various controls and display elements on the front of the Tecsun PL-330 radio, including the whip antenna, power switch, display, alarm, time, numeric keys, and tuning knobs.

• [DISPLAY]: Display mode / Snooze
• [ALARM]: Alarm setting
• [TIME]: Set / Display clock
• Whip antenna (FM / SW)
• [POWER]: Power switch / Sleep timer
• [VF/VM]: View Frequency / View Memory
• Band selection/ATS
• [MW/LW]: MW/LW band selection
• [FM/ST.]: FM/Stereo switch
• [<], [>]: SW meter band selection
• [AM BW]: AM bandwidth selection
• [LSB]: Lower sideband
• [USB]: Upper sideband
• [SSB/SYNC]: Single sideband / Synchronous detection
• Battery compartment (rear)
• [VOLUME]: Multifunctional knob
• [ETM]: Enhanced Tuning Mode
• [STEP/▲▼]: Tuning step selection / Keylock
• [TUNING]: Multifunctional knob
• DC-IN 5V: DC input/charging port (Micro-USB Type-B)
• Stereo headphone jack
• FM & SW ANTENNA: External antenna socket
• [0] - [9]: Numeric keys
• [1] / [FM SET]: FM range setting
• [2] / [LW ON/OFF]: Enable/Disable LW
• [3] / [9/10kHz]: MW step setting
• [4]: FM de-emphasis switch
• [5] / ○: Backlight switch
• [8]: Display seconds on clock
• [0] / ▲▼: Organize memory
• [M] / [MEMORY]: Store stations
• [←] / [DELETE]: Confirm/Delete

2.3 Display Indications

The display provides important information about the radio's status and current settings.

A close-up of the radio's LCD screen, showing various symbols and numerical values for frequency, signal strength, and other operational parameters.

• SYNC Detection/Single sideband: SYNC, LSB (Lower Sideband), USB (Upper Sideband)
• Alarm activated
• Sleep timer activated
• Battery power: Full capacity (♫), Low battery (♫)
• dBµ: Signal strength measuring unit
• dB: Signal-to-noise ratio measuring unit
• S/N: Signal-to-noise ratio
• mb: Shortwave meter band
• PRESET: Location within memory
• Charge: Charging indicator
• Timer A: Alarm time
• FM stereo reception
• Keylock
• Frequency band: FM, MW, LW, SW
• Tuning step indicator
• Enhanced Tuning Mode
• SW / MW / LW unit display

2.4 Powering Your Device

The PL-330 is powered by a BL-5C 3.7V rechargeable lithium (Li-ion) battery. To install the battery, open the battery compartment on the rear of the device and insert the battery with the correct polarity. The radio can also be powered by connecting a DC 5V/0.5A power adapter to the micro-USB Type-B socket.

The rear of the Tecsun PL-330 radio with the battery cover removed, revealing the slot for the BL-5C lithium battery.

Note:

• Connecting an external power supply may cause interference. If reception issues occur, disconnect the external power supply and use battery power.
• Ensure any power adapter used is certified and meets local standards.

2.5 Charging the Battery

When the battery icon on the display shows "♫", the battery is low and needs charging. To charge the BL-5C battery, connect a DC 5V/0.5A charger to the micro-USB Type-B socket on the left side of the radio using the provided cable. During charging, the charging time is displayed, and the "Charge" indicator flashes. Once fully charged, the battery symbol will show "♫" and the "Charge" indicator will stop flashing.

Notes:

• It is recommended not to charge and listen to the radio simultaneously to avoid electrical noise interference.
• If the device is unused for a long time, charge the battery every 3 months for about 4 hours to extend its life.

2.6 Setting the Clock (24-hour format)

1. Press and hold [TIME] until the clock time starts flashing.
2. Use the numeric keys to enter the current time (four digits for hours and minutes), or rotate the [TUNING] and [VOLUME] knobs to adjust the time.
3. Press [TIME] again to confirm the setting.

2.7 Setting the FM Frequency Range

With the device off, press and hold [1]. The display will show "64", "76", "87", or "88" to indicate the corresponding range:

• 64 ~ 108MHz
• 76 ~ 108MHz
• 87 ~ 108MHz
• 88 ~ 108MHz

Quickly press [1] repeatedly to cycle through and select your preferred range.

2.8 Setting the MW (AM) Frequency Range and Tuning Step

With the device off, press and hold [3] to set the MW (AM) frequency range and tuning step:

• "9": MW frequency steps are 9 kHz, range 522~1620 kHz (Asia, Europe, Africa, Oceania).
• "10": MW frequency steps are 10 kHz, range 520~1710 kHz (North America and South America).

2.9 Enabling/Disabling Longwave (LW)

With the device off, press and hold [2]. The display will show "ŋ" (enabled) or "OFF" (disabled). To select the LW frequency band, power on the device and quick press the [MW/LW] button twice.

3. Operating the Device

3.1 Turning the Device On/Off

Quick press the [POWER] button to turn the device on or off.

3.2 Volume Control

Rotate the [VOLUME] knob upwards or downwards to adjust the volume level.

3.3 VF (View Frequency) and VM (View Memory) Modes

• VF Mode: Used for searching new radio signals. Press [VF/VM]. When the station frequency indicator flashes twice, VF mode is active.
• VM Mode: Used for recalling stored stations. Press [VF/VM]. When the station memory preset indicator flashes three times, VM mode is active.

3.4 Using the Radio's Antennas

• FM / Shortwave (SW): Extend the telescopic antenna and adjust its length and direction for optimal reception. An external antenna can be connected to the [FM & SW ANTENNA] socket (3.5mm).
• Medium Wave (MW) / Long Wave (LW): The radio uses an internal ferrite bar antenna. Rotate the device to improve reception quality.

Caution:

• When using outdoor antennas, ensure proper waterproofing and lightning protection.

3.5 Tuning into Stations

Turn on the device, then quick press [FM/ST.], [MW/LW], [<] or [>] (for SW) to select your desired frequency band. You can tune using the following methods:

3.5.1 Manual Tuning

In VF mode, rotate the [TUNING] knob to search for stations. To change the tuning step, quick press [STEP]. A "▼" symbol will be displayed above the frequency.

3.5.2 Auto Scan

In VF mode, press and hold [VF/VM]. The device will scan the entire frequency band, pausing for about 5 seconds on each found station. Quick press any key to stop the auto scan.

3.5.3 Direct Keypad Entry

In VF mode, quick press the numeric keys [0 - 9] to directly enter a frequency.

Tips:

• For FM band, ignore the decimal point (e.g., enter 974 for 97.4 MHz).
• If an invalid frequency is entered, "Err" will be displayed.

3.6 SW/SSB Meter Band Selection

Quick press [<] or [>] to change between SW or SSB meter bands:

• SW Meter Bands: 120m, 90m, 75m, 60m, 49m, 41m, 31m, 25m, 22m, 19m, 16m, 15m, 13m, 11m.
• SSB Meter Bands: 160m, 80m, 60m, 40m, 30m, 24m, 20m, 17m, 15m, 12m, 10m.

3.7 Working with Station Memories

The device can store up to 850 stations (presets): 100 for FM/LW, 150 for MW (AM), 300 for SW, and 100 each for SSB and SYNC.

3.7.1 Storing Stations Manually

1. In VF mode, select the frequency band using [FM/ST.], [MW/LW], [<] or [>].
2. Tune to the desired frequency.
3. Quick press the [M] button. "PRESET" will flash, indicating the next available memory location. Use [TUNING] knob or numeric keys to select a different location if needed.
4. Quick press [M] again to confirm, or wait 2 seconds for automatic storage.

3.7.2 Auto Tuning Storage (ATS)

ATS automatically tunes and stores FM, LW, MW, and SW stations.

Operation for FM and MW/LW:

1. Quick press [FM] or [MW/LW] to select the band.
2. Press and hold [FM] or [MW/LW] until "PRESET" flashes and frequency starts running.
3. When scanning stops, ATS is complete. Rotate [TUNING] to view stored stations.

Operation for SW:

• Mode A: Press and hold [<] to initiate ATS within all meter bands.
• Mode B: Press and hold [>] to initiate ATS within the selected meter band.

Tips:

• ATS (except SW Mode B) overwrites previous stations. Use ETM+ to avoid this.
• ATS results depend on propagation and environment. Try different locations/times if results are poor.

3.7.3 Storing Stations During Auto Scan

1. In VF mode, press and hold [VF/VM] to start auto scan.
2. When a desired station is found, quick press [M] to store it. The radio will continue scanning.
3. Quick press [VF/VM] to stop the auto scan.

3.7.4 Recalling Stored Stations

1. Select the frequency band or mode (SYNC/SSB).
2. Quick press [VF/VM] to enter VM mode.
3. Rotate [TUNING] knob or use numeric keys to select a stored station. If no station is stored, "----" will be displayed.

3.7.5 Memory Scan

The device can auto scan all stored stations within a band/mode, pausing for 5 seconds on each.

1. Select the frequency band or mode (SYNC/SSB).
2. Quick press [VF/VM] to enter VM mode.
3. Press and hold [VF/VM] until "PRESET" flashes. The radio will scan.
4. Quick press any button (except [←] (DELETE)) to stop scanning.

3.7.6 Deleting Stored Stations

Deleting a Single Station:

1. Enter VM mode and select the station.
2. Press and hold [←] (DELETE) until "dEL" and "PRESET" flash.
3. Quick press [←] to confirm deletion. (If not pressed within 3 seconds, deletion is cancelled).

Deleting Stations During Memory Scan:

1. Select frequency band/mode (SYNC/SSB).
2. Quick press [VF/VM] to enter memory mode.
3. Press and hold [VF/VM] until "PRESET" flashes.
4. When an unwanted station is found, press [←] (DELETE). No confirmation is needed, and scanning continues.
5. Quick press any button to stop the memory scan.

Deleting All Stored Stations:

1. Turn the device off.
2. Press and hold [←] (DELETE) until "dEL" and "ALL" flash.
3. Quick press [POWER] to confirm deletion of all stored stations. (If not pressed within 3 seconds, deletion is cancelled).
4. The display will return to clock time, indicating all frequencies have been deleted.

3.8 Enhanced Tuning Mode (ETM+)

ETM+ allows auto-tuning and storing FM, LW, MW, and SW stations into a separate ETM memory, without overwriting regular memory (VM). This is useful when traveling to different locations.

ETM+ Memory Structure:

• LW/MW: 6 time-specific memories (e.g., 0609 for 06:00-09:59).
• SW: 24 time-specific memories (one for each hour, e.g., E09 for 09:00-09:59).

The radio is shown from an angle, highlighting its compact design and extended antenna.

Using ETM+ to Scan and Store Stations:

1. Quick press [ETM]. Display shows "ETM".
2. Select the frequency band.
3. Press and hold [ETM] to start scanning.
4. After scanning, the display shows the number of frequencies found (e.g., "136ch").

Manually Adding Stations to ETM Memory:

1. Quick press [ETM]. Display shows "ETM".
2. Select the frequency band.
3. Key in the frequency of the missing station.
4. Quick press [M] twice.

Listening to Stations in ETM+ Memory:

1. Quick press [ETM]. Display shows "ETM".
2. Select the frequency band.
3. Rotate [TUNING] knob to select a stored frequency.
4. To exit ETM mode, quick press [ETM] or [VF/VM].

Deleting a Single ETM+ Station:

1. Quick press [ETM]. Display shows "ETM".
2. Select the frequency band.
3. Rotate [TUNING] knob to select the frequency to be deleted.
4. Press and hold [←] (DELETE) until "dEL" is displayed.
5. Quick press [←] to confirm deletion.

Tips for ETM+:

• Ensure the radio's clock is set accurately as ETM memories are time-specific.
• If no ETM scan has been performed for a time-range, that memory will be empty.
• For LW/MW, adjust the radio's position for better reception due to the directional internal ferrite antenna. Reception is generally better at night.
• For SW, adjust the whip antenna length or rotate the radio. Try different locations, preferably near a window, to minimize electromagnetic interference (EMI).

3.9 Other Settings and Features

3.9.1 Auto Sorting Memory

With the device off, press and hold [0] until the station memory preset indicator starts running. This feature deletes duplicate stations and sorts stored stations from low to high frequency.

3.9.2 Single Sideband (SSB)

SSB mode can be activated for LW, MW, and SW signals to receive specific transmissions like amateur radio or Morse Code, and to mitigate interference.

• Enable/Disable: Quick press [LSB] (lower sideband) or [USB] (upper sideband) to enable. Quick press [SSB] to disable.

3.9.3 Synchronous Detection (SYNC)

SYNC detection can reduce noise, eliminate distortion from fading, and suppress interference from adjacent stations, especially for LW, MW, and SW broadcasts.

• Enable: Press and hold [SSB] (SYNC). "SYNC" will display.
• Select Sideband: Quick press [LSB] or [USB] for Lower Sideband or Upper Sideband SYNC detection.
• Disable: Quick press [SSB]. "SYNC" will disappear.

Note:

• Enabling SYNC does not always reduce interference.

3.9.4 AM Bandwidth Selection

Quick press [AM BW] then rotate [VOLUME] knob to select a bandwidth. Quick press [AM BW] again to confirm.

Selectable Bandwidths:

• LW/MW: 2.5, 3.5, 9.0kHz
• SW: 2.5, 3.5, 5.0kHz
• SSB: 0.5, 1.2, 2.2, 3.0, 4.0kHz

Considerations:

• Wider bandwidth: Better audio fidelity for strong signals.
• Narrower bandwidth: Reduces interference from adjacent signals and noise, suitable for weak/distant stations.

3.9.5 FM Stereo/Mono Selection

When listening to FM with headphones, quick press [FM/ST.]. If a stereo signal is detected, the "☺" icon appears. Quick press [FM/ST.] again to return to mono.

Tips:

• If the FM signal is mono or weak stereo, the audio output will be mono, and the "☺" icon will not display.

3.9.6 FM De-emphasis Time Constant

While receiving FM, long press [4] to adjust de-emphasis to 50µs or 75µs.

• "50.US": For Europe, Australia, Japan, etc.
• "75.US": For the Americas and South Korea.

3.9.7 Display Mode

Quick press [DISPLAY] repeatedly to cycle through display modes: signal strength/S/N ratio, clock time, alarm time, or memory location (VM mode only).

3.9.8 Add Seconds to the Clock

With the device off, press and hold [8] to add seconds to the clock display. Press and hold [8] again to hide seconds.

3.9.9 Display Backlight

With the device on, press and hold [5] to select backlight settings:

• "On": Backlight is always on.
• "OFF": Backlight turns on for 5 seconds when a button or knob is used.

3.9.10 Setting the Sleep Timer

1. Turn the device off.
2. Press and hold [POWER] to enter sleep timer setting.
3. Rotate [TUNING] knob to select 1-120 minutes, or "ON" to deactivate.
4. Quick press [←] to confirm. The "☺" icon will display.

3.9.11 Activating/Deactivating the Alarm

Quick press [ALARM] to activate. The "☺" icon will display. Quick press again to deactivate.

3.9.12 Setting the Alarm Time

1. Press and hold [ALARM] until the alarm time flashes.
2. Use numeric keys or [TUNING] and [VOLUME] knobs to set time. Press [ALARM] to confirm.
3. Rotate [TUNING] knob to set alarm duration (1-60 minutes).
4. Quick press [ALARM] to confirm. The "☺" icon will display.

3.9.13 Setting the Alarm Station

1. Select the desired station frequency.
2. Quick press [M]. The preset memory location will flash.
3. While flashing, quick press [ALARM]. The "☺" icon will flash.
4. While flashing, quick press [←] to confirm. The "☺" stops flashing, and the setting is complete.

Tips:

• If the radio is off with volume below 10, it will turn on at default volume 10 for the alarm.
• To turn off the alarm during playtime, quick press [POWER] twice.
• Quick press [POWER] during alarm playtime to deactivate and change frequency.
• Alarm automatically deactivates if not used for three days.

3.9.14 Snooze Function

When the alarm sounds, press [DISPLAY] to temporarily turn it off for 5 minutes. The "☺" icon flashes. Quick press [POWER] to turn off snooze.

3.9.15 Keylock

To activate keylock, press and hold [▲▼]. The "☺" icon will display, and buttons/knobs will be disabled. Press and hold [▲▼] again to unlock.

4. Maintenance

4.1 Lithium Battery Safety Instructions

• Improper replacement may cause explosion. Replace only with BL-5C type or equivalent.
• Do not expose to heat sources (sunlight, fire), low temperatures, humidity, or high pressure.
• Do not short-circuit or disassemble. If the battery is inflated, discontinue use. Dispose of properly.
• If not used for extended periods, remove the battery and store it safely. Wrap in non-conductive material to avoid contact with metal. Store in a cool, dry place.
• Adhere to aviation regulations; lithium batteries are prohibited in checked luggage.

4.2 Radio Maintenance

• Keep the device dry. Rain, humidity, or liquids can cause corrosion. If wet, remove battery and let it dry completely before reinserting.
• Do not store above +45°C or below -5°C. Extreme temperatures can shorten lifespan or cause internal condensation and damage.
• Do not drop, hit, or smash the device.
• Do not use harsh chemicals, cleaning solvents, or strong detergents. Use a clean, soft, dry cloth to clean the screen.
• Do not attempt to disassemble or adjust internal parameters.

5. Troubleshooting

Refer to the table below for common issues and their solutions.

6. Specifications

Detailed technical specifications for the Tecsun PL-330 radio.

7. User Tips

Based on common user inquiries and experiences, here are some helpful tips for using your Tecsun PL-330:

• Firmware Version: Many users have reported their units shipping with firmware version 3307. While updates are not typically user-installable, this information can be useful for support inquiries.
• Charging the Battery: The radio uses a BL-5C battery and charges via a micro-USB Type-B port. Ensure you use a compatible 5V/0.5A charger. The display will indicate charging status.
• MW Antenna Usage: For optimal Medium Wave (MW) reception, rotate the radio itself to find the best signal direction, as it uses an internal ferrite bar antenna. The telescopic antenna is primarily for FM and SW.
• Manual Availability: An English user manual is included in the package. For those preferring a digital copy or other languages, the official PDF can be referenced (see Package Contents).
• Scanning All Frequencies: The radio supports various scanning methods including Auto Scan and ETM+ for efficient frequency discovery across all supported bands.

8. Warranty and Support

For any quality issues or support inquiries, please refer to the following guidelines:

• Within one month of receipt: If any quality issues arise, the product will be promptly replaced with a new unit or a full refund will be provided.
• Between the second and third month after receipt: A replacement radio will be offered, but the shipping cost for returning the faulty item will be borne by the customer.
• Between three and twelve months after receipt: Free repair services will be provided. However, the shipping cost for sending the radio for repair will be the responsibility of the customer.

For further assistance, please consult customer service.

This image outlines the terms for product replacement, repair, and refunds based on the time elapsed since purchase for quality-related issues.