1. Pengenalan
The Sangean U4 is an ultra-rugged digital tuning radio designed for versatility and durability. It features AM/FM-RBDS, Weather Alert capabilities, Bluetooth wireless audio streaming, and an Aux-in port. Built to withstand challenging environments, the U4 is rain, dust, and shock resistant with an IP64 certified rating. It also includes a real-time clock with alarm timers and multiple power options to ensure you stay connected and informed.
2. Produk Lebihview
Rajah 1: Depan view of the Sangean U4 Weather Alert Radio.
2.1 Komponen yang Disertakan
- Sangean U4 Radio
- Antena
- Manual Pemilik
2.2 Ciri-ciri Utama
- AM/FM-RBDS/Weather Alert/Bluetooth/Aux-In Digital Tuning: Access a wide range of radio stations and weather alerts.
- Pratetap Stesen: Store up to 5 FM1, 5 FM2, 5 AM, and 5 Weather Band stations for quick access.
- Bluetooth Wireless Audio Streaming: Easily connect your smartphone or other Bluetooth-enabled devices with NFC technology for high-fidelity audio (supports aptX decoding).
- Ultra-Rugged Design: IP64 certified for rain, dust, and shock resistance, making it ideal for outdoor and demanding environments.
- Boleh dicas semula: Built-in rechargeable battery with a charging LED indicator.
- Port Pengecasan USB: DC out (5V / 1A) USB A Type socket for charging mobile phones or MP3 players.
- Real-Time Clock & Alarms: Features a real-time clock with 2 alarm timers, adjustable Nap, Sleep, and Snooze functions.
3. Persediaan
3.1 Menghidupkan Radio
The Sangean U4 offers multiple power options:
- Kuasa AC: Plug the radio into a standard wall outlet using the provided AC power cord.
- Bateri boleh dicas semula: The radio has a built-in rechargeable battery. Ensure it is fully charged before initial use for optimal performance.
- Bateri alkali: The radio can also operate on alkaline batteries (not included) as an alternative power source.
Rajah 2: Belakang view showing the battery compartment for the Sangean U4 Radio.
3.2 Persediaan Antena
Extend the telescopic antenna for optimal FM and Weather band reception. For AM reception, rotate the radio for the best signal.
4. Arahan Operasi
Figure 3: Close-up of the Sangean U4 Radio's control panel and display.
4.1 Hidupkan/Mati Kuasa
Tekan ke KUASA butang untuk menghidupkan atau mematikan radio.
4.2 Pemilihan Band
Tekan ke BAND button repeatedly to cycle through AM, FM1, FM2, and Weather (WX) bands.
4.3 Tuning and Presets
- Penalaan Manual: Putar MENALA tombol untuk melaraskan frekuensi secara manual.
- Imbasan Auto: Tekan dan tahan butang SEEK/SELECT knob to automatically scan for the next available station.
- Tetapan Pratetap: Tune to your desired station, then press and hold one of the numbered preset buttons (1-5) until the display confirms the station is saved.
- Pratetap Mengingat: Briefly press a numbered preset button (1-5) to recall a saved station.
4.4 Penstriman Audio Bluetooth
- Berpasangan: Tekan ke SUMBER button to select Bluetooth mode. The display will show "BT" and flash, indicating it's ready to pair.
- Berpasangan NFC: For NFC-enabled devices, simply touch your device to the NFC logo on the radio to initiate pairing.
- Pemasangan Manual: On your device, search for "Sangean U4" and select to connect.
- Once paired, you can stream audio from your device to the radio. Use the radio's controls or your device to adjust volume and playback.
4.5 Sambungan Aux-In
Sambungkan peranti audio luaran (cth, pemain MP3) ke AUX-IN port using a 3.5mm audio cable. Press the SUMBER button to select Aux-in mode.
4.6 USB Charging Out
The U4 features a DC out (5V / 1A) USB A Type socket. Connect your mobile phone or MP3 player to this port using a USB cable to charge your device. This function is active when the radio is powered on or connected to AC.
4.7 Clock, Alarms, Nap, Sleep & Snooze
Refer to the detailed Owners Manual for specific instructions on setting the real-time clock, configuring the 2 alarm timers, and utilizing the Nap, Sleep, and Snooze functions.
4.8 Weather Alert Function
Tekan ke WX ALERT button to activate or deactivate the weather alert function. When active, the radio will automatically switch to the weather band and sound an alarm if a severe weather alert is broadcast.
Video 1: Official Sangean U4 Product Overview, demonstrating key features and ruggedness.
5. Penyelenggaraan
5.1 Pembersihan
Lap radio dengan lembut, damp cloth. Do not use abrasive cleaners or solvents, as they may damage the finish. Ensure all port covers are securely closed to maintain IP64 rating.
5.2 Penjagaan Bateri
If using rechargeable batteries, allow them to fully discharge occasionally before recharging to prolong battery life. If using alkaline batteries, remove them if the radio will not be used for an extended period to prevent leakage.
5.3 Tahan Air dan Habuk
The U4 is IP64 certified, meaning it is protected against dust ingress and splashing water from any direction. However, it is not designed for submersion. Always ensure the rubber covers for all ports are firmly sealed when not in use to maintain its resistance.
6. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada kuasa | Batteries are depleted or incorrectly installed; AC adapter not connected. | Replace/install batteries correctly; connect AC adapter. |
| Penerimaan radio yang lemah | Antena tidak dipanjangkan; kawasan isyarat lemah; gangguan. | Extend antenna fully; reposition radio; check for local interference sources. |
| Bluetooth tidak bersambung | Device not in pairing mode; out of range; already connected to another device. | Ensure radio is in Bluetooth pairing mode; move device closer; disconnect from other devices. |
| Pengecasan USB tidak berfungsi | Radio not powered on or connected to AC; device not compatible. | Ensure radio is on or plugged into AC; check device compatibility. |
7. Spesifikasi
| Ciri | Perincian |
|---|---|
| Nombor Model | U-4 |
| Dimensi Produk | 11.73 x 10.55 x 13.46 inci |
| Berat Barang | 10.69 paun |
| Teknologi Penala | AM/FM/WX (Weather) |
| Pancaragam Radio Disokong | AM/FM/WX |
| Teknologi Ketersambungan | Auxiliary, Bluetooth (with NFC and aptX) |
| Ciri Khas | Portable, Rechargeable, IP64 Certified (Rain, Dust, Shock Resistant) |
| Sumber Kuasa | Dikuasakan Bateri, Elektrik Bertali |
| Output USB | DC 5V / 1A (for charging mobile devices) |
| Pengeluar | Sangean America, Inc. |
8. Waranti dan Sokongan
Sangean America, Inc. warrants this product to be free from defects in material and workmanship under normal use and conditions for a period of one year from the date of original purchase. For warranty service or technical support, please refer to the contact information provided in your product packaging or visit the official Sangean webtapak.
