1. Pengenalan
Thank you for choosing the Retevis Ailunce HD2 Ham Radio. This manual provides essential information for the safe and efficient operation of your device. Please read this manual thoroughly before use and retain it for future reference.
The Retevis Ailunce HD2 is a dual-band DMR amateur radio featuring GPS, Wireless 5.0 connectivity, a 3200mAh battery, and IP67 waterproof rating. It supports both digital and analog modes, offering high power and long-range communication capabilities.
2. Kandungan Pakej
Before proceeding with setup, please verify that all items listed below are included in your package:
- HD2 Radio Body ×1
- Antena ×1
- Type-C Charging Battery ×1
- Type-C Desktop Charger ×1
- Kabel Pengecas USB Jenis-C ×1

Figure 2.1: Contents of the Retevis Ailunce HD2 package.
3. Panduan Persediaan
3.1. Pemasangan dan Pengecasan Bateri
- Pastikan radio dimatikan.
- Sejajarkan bateri Li-ion 3200mAh dengan petak bateri di bahagian belakang radio.
- Tolak perlahan bateri ke tempatnya sehingga ia berbunyi dengan selamat.
- To charge, connect the USB Type-C charging cable to the radio's Type-C port or use the desktop charger.
- Connect the other end of the cable to a compatible USB power source. The charging indicator will show the charging status.

Figure 3.1: Battery charging process and estimated times.
3.2. Lampiran Antena
- Skrukan antena mengikut arah jam pada penyambung antena di bahagian atas radio sehingga ia ketat separas jari. Jangan terlalu ketatkan.

Figure 3.2: Attaching the antenna to the radio.
3.3. Wireless Headset Connection
The HD2 supports Wireless 5.0 for hands-free communication.
- Ensure your wireless headset is in pairing mode.
- Navigate to the Bluetooth settings on your HD2 radio.
- Pilih alat dengar anda daripada senarai peranti yang tersedia untuk dipasangkan.

Figure 3.3: Wireless headset connection for hands-free operation.
4. Arahan Operasi
4.1. Hidupkan/Mati Kuasa
Untuk menghidupkan radio, putar tombol kuasa/kelantangan mengikut arah jam sehingga anda mendengar bunyi klik. Untuk mematikan radio, putarkannya lawan arah jam sehingga ia berbunyi klik.
4.2. VFO Mode Operation
The VFO (Variable Frequency Oscillator) mode allows direct frequency input and adjustment without requiring computer programming.
- Tekan ke MENU butang untuk mengakses menu utama.
- Navigate to the VFO mode option and select it.
- Use the keypad to input your desired frequency.
- Adjust other parameters like channel, color code, or time slot as needed directly from the radio's interface.

Figure 4.1: VFO Mode interface for direct frequency and setting adjustments.
4.3. Mod Digital dan Analog
The HD2 supports both digital (DMR) and analog communication modes. You can switch between these modes based on your communication requirements and the network you are operating on.
4.4. Kefungsian GPS
The integrated GPS allows you to locate your real-time position and share it with other users, which is crucial for coordination during outdoor activities or emergencies.
- Access the GPS menu from the radio's main menu.
- View your current coordinates (N/S, E/W) and altitude.
- Use the sharing function to transmit your location data to designated partners.

Figure 4.2: GPS function displaying location data.
4.5. Tahap Kuasa
The radio offers 4 selectable power levels to optimize battery life and transmission range for different scenarios. Adjust the power level through the radio's menu settings.
4.6. Community Features
The HD2 supports up to 3000 channels and 500,000 contacts, facilitating extensive communication within amateur radio communities. Features include ID modification, call logs, and text messaging.

Gambar 4.3: Lebihview of community features, including channels and contacts.
5. Penyelenggaraan
5.1. Penjagaan dan Pembersihan Am
Bersihkan bahagian luar radio secara kerap dengan lembut, damp cloth. Avoid using harsh chemicals or abrasive cleaners. Ensure all ports are dry before charging or connecting accessories.
5.2. Penjagaan Bateri
To maximize battery life, fully charge the 3200mAh battery before initial use. Avoid overcharging or completely draining the battery. Store the radio and battery in a cool, dry place when not in use for extended periods.
5.3. Kalis air (IP67)
The HD2 is IP67 rated, meaning it is protected against dust ingress and can withstand immersion in 1 meter of water for up to 30 minutes. Ensure all port covers are securely closed before exposing the radio to water or dusty environments.

Figure 5.1: The HD2's IP67 waterproof and dustproof design.
6. Penyelesaian masalah
If you encounter issues with your Retevis Ailunce HD2, please refer to the following common problems and solutions:
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Radio tidak dihidupkan | Bateri rendah atau mati; bateri yang dipasang dengan betul | Cas bateri; pastikan bateri dipasang dengan betul. |
| Tidak boleh menghantar atau menerima | Incorrect frequency/channel settings; antenna not connected; out of range | Verify frequency/channel; check antenna connection; move closer to other radios or repeater. |
| Kualiti audio yang lemah | Low signal strength; incorrect squelch level; damaged speaker/microphone | Check signal strength; adjust squelch level; contact support if hardware is damaged. |
| Difficulty with CPS programming | Driver issues; cable connection problems; software compatibility | Ensure correct drivers are installed; check USB cable connection; use the latest CPS software version. |
| GPS tidak menerima isyarat | Operating indoors; obstructed view dari langit | Beralih ke kawasan luar yang terbuka dengan ruang yang bersih view dari langit. |
7. Spesifikasi
| Ciri | Perincian |
|---|---|
| Jenama | Retevis |
| Nombor Model | HD2 |
| warna | Hitam |
| Bilangan Saluran | 3000 |
| Ciri Khas | GPS, Dual Band |
| Spektrum Kekerapan | 144-146 MHz / 430-440 MHz |
| Julat Percakapan Maksimum | 5 Kilometer |
| Voltage | 7.4 Volt |
| Tahap Ketahanan Air | IP67 Kalis Air |
| Dimensi Produk (DxWxH) | 3.5P x 6.5p x 15T cm |
| Bilangan Bateri | 1 bateri Lithium Ion diperlukan (termasuk) |
| Tahap Kebisingan | 60 Desibel |
| Peranti Serasi | Wireless headphones, USB-C devices, other DMR radios |
| Julat Suhu | -10~+40 Degrees Celsius |
| Purata Hayat Bateri | 19.5 Jam |
| Impedans | 50 Ohm |
| Protokol Ketersambungan | Wi-Fi (likely refers to programming/data transfer, not voice) |
| Penilaian Perlindungan Antarabangsa | IP67 |
| Berat Barang | 620 Gram |
8. Waranti dan Sokongan
8.1. Jaminan Produk
Retevis provides a 2-year warranty for the radio body and a 1-year warranty for accessories. We offer a 30-day no-reason return policy. For issues beyond the warranty period, maintenance services are still available, with buyers responsible for corresponding costs. We aim to process requests as simply as possible.
8.2. Sokongan Pelanggan
Should you require assistance or have any questions, please contact us through Amazon. We commit to responding within 12 hours.