pengenalan
This manual provides comprehensive instructions for the operation, maintenance, and troubleshooting of your Retevis RA685 (VHF/UHF Dual Band) or RA85 (GMRS) two-way radio. Please read this manual carefully before using the device to ensure safe and optimal performance.
Figure 1: Retevis RA685/RA85 Two-Way Radio Overview. Key features include dual-band operation (UHF/VHF or GMRS), Type-C charging, frequency measurement, and VFO mode.
Ciri-ciri Produk
- Operasi Jalur Dwi: RA685 supports VHF (144-146MHz TX/RX) and UHF (430-440MHz TX/RX). RA85 supports GMRS.
- Kapasiti Saluran: RA685 features 128 channels, RA85 features 60 channels.
- Adjustable TX Power: RA685 offers 5W/3W/1W adjustable power. RA85 offers 5W/0.5W.
- Pengecasan USB Jenis-C: Convenient and efficient charging via USB Type-C port. Supports wall, car, power bank, and PC charging.
- 1.6 Inch Dot Matrix Display: Provides clear display of data and details.
- Frequency Measurement Function: Measures frequency and CTCSS/DCS, with copy function.
- Special Digital Mute Function: CTCSS/DCS/DTMF signaling code rejects unnecessary calls, ensuring secure communication and no eavesdropping.
- Fungsi VOX: Membenarkan operasi bebas tangan tanpa menekan butang PTT.
- Digital FM Radio: Built-in FM radio (65-108MHz).
- One-click Alarm Function: Untuk situasi kecemasan.
- Saluran Cuaca NOAA: (GMRS version only) Keeps you informed with the latest weather forecasts.
- Padat dan Mudah Alih: Lightweight design (223g including antenna and battery) with comfortable grip. Dimensions: 121*61*33mm.
- Komunikasi Jarak Jauh: Compatible with repeaters to strengthen signal and communication range.
- Fungsi Tambahan: TOT (Time-out Timer), Monitor, Busy Channel Lockout, Squelch, Keyboard Lock, Power Save, Backlight, Flashlight, Dual Watch.
Kandungan Pakej
Sila sahkan bahawa semua item yang disenaraikan di bawah disertakan dalam pakej anda:
Figure 2: Retevis RA685 Package Contents. Includes the radio unit, antenna, user manual, USB charger, and battery.
Figure 3: Retevis RA85 Package Contents. Includes the radio unit, antenna, user manual, USB charger, and battery.
- 1 x Two-Way Radio (RA685 or RA85 model)
- 1 x Antenna (Note: RA685 GMRS and RA685 EU antennas are not removable)
- 1 x Manual Pengguna
- 1 x Pengecas USB
- 1 x Battery (1800mAH Li-Ion)
Arahan Persediaan
1. Pemasangan dan Pengecasan Bateri
The radio comes with an 1800mAh Li-ion battery. Ensure the battery is fully charged before first use.
- Untuk memasang bateri, sejajarkan pek bateri dengan alur di bahagian belakang radio dan luncurkannya ke atas sehingga ia berbunyi klik di tempatnya.
- To remove, press the PUSH button above the battery and slide it downwards.
- Connect the USB Type-C charger to the charging port on the side of the radio.
- The radio supports multiple charging methods: Wall Charging, Car Charging, Power Bank, and PC Charging.
Video 1: Demonstrates battery installation, Type-C direct charging, and multiple charging methods for the Retevis RA685/RA85 radio. It also shows the detachable antenna and flashlight function.
Figure 4: Type-C USB Charging. The radio can be charged via various USB sources.
Figure 5: Charging options for the radio, including a charging base and direct USB-C connection.
Figure 6: Battery specifications, showing 1800mAh capacity, 14 hours working time, and 48 hours standby time at 5W.
2. Lampiran Antena
Screw the antenna clockwise into the antenna connector on top of the radio until it is firmly seated. Ensure a secure connection for optimal signal performance.
Figure 7: Detachable antenna connection point (SMA-F type for RA685).
Arahan Operasi
1. Kawalan Asas dan Paparan
Familiarize yourself with the radio's layout:
Figure 8: Radio Components and Controls.
- Power/Volume Switch (6): Rotate clockwise to turn on and increase volume, counter-clockwise to decrease volume and turn off.
- PTT (Push-to-Talk) Button (9): Tekan dan tahan untuk menghantar, lepaskan untuk menerima.
- Screen Display (7): 1.6 Inch Dot Matrix Display shows frequency, channel, battery status, and other operational information.
- Programmable Side Keys (10, 11): These buttons can be customized for various functions like Flashlight (PF1 short press), Emergency Alarm (PF1 long press), or FM Radio (PF2).
Figure 9: The 1.6-inch dot matrix display provides detailed information.
2. Pemilihan Saluran dan Frekuensi
- Mod Saluran: Use the up/down arrow keys to navigate through pre-programmed channels.
- Mod VFO (Mod Frekuensi): Allows manual input of frequencies. Press the V/M button to switch between Channel and VFO modes. Use the numeric keypad to enter desired frequencies.
Figure 10: Manually inputting frequencies in VFO mode.
3. Frequency Measurement and Copy
The radio can measure and copy frequencies and sub-audio tones (CTCSS/DCS) from other devices. For accurate measurement, ensure the distance between the transmitting and receiving radios is within 1 meter.
Figure 11: Frequency measurement and copy function. Maintain close proximity for best results.
4. Power Selection
Adjust the transmit power (5W/3W/1W for RA685, 5W/0.5W for RA85) based on your communication needs to optimize battery life and range.
Figure 12: Power selection options for RA685, balancing signal strength and power saving.
Figure 13: Power selection options for RA85, balancing signal strength and power saving.
5. Emergency Functions
- One-click Alarm: For emergency situations, activate the alarm function (often assigned to a programmable side key).
Figure 14: The one-click alarm function is designed for emergencies.
6. Fungsi VOX
The Voice Operated Exchange (VOX) function allows you to transmit by speaking into the microphone without pressing the PTT button. This is useful for hands-free operation.
Rajah 15: Fungsi VOX membolehkan komunikasi bebas tangan.
7. Radio FM Digital
The radio includes a digital FM radio function (65-108MHz). Refer to the user manual for specific instructions on tuning and saving FM stations.
Figure 16: The radio features a built-in FM radio.
8. NOAA Weather Channels (RA85 GMRS Version Only)
The RA85 GMRS version can receive 10 NOAA weather channels, providing real-time weather forecasts. This feature is crucial for outdoor activities and emergency preparedness.
Figure 17: NOAA Weather Channels (GMRS version only) for up-to-date weather information.
Penyelenggaraan
- Pembersihan: Gunakan yang lembut, damp kain untuk membersihkan permukaan radio. Jangan gunakan bahan kimia yang keras atau pembersih yang kasar.
- Penjagaan Bateri:
- Elakkan mengecas berlebihan atau menyahcas sepenuhnya bateri.
- Simpan bateri di tempat yang sejuk dan kering apabila tidak digunakan untuk tempoh yang lama.
- If the battery is not used for a long time, charge it once a month to maintain battery life.
- Storan: Simpan radio dalam persekitaran yang kering dan bebas habuk dari suhu yang melampau.
- Antena: Ensure the antenna is securely attached. Do not bend or force the antenna, as this can damage the radio.
Menyelesaikan masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Radio tidak dihidupkan. | Bateri lemah atau tidak dipasang dengan betul. | Cas bateri atau pasang semula dengan betul. |
| Tidak boleh menghantar atau menerima. | Frekuensi/saluran salah, antena longgar atau di luar julat. | Verify frequency/channel settings. Check antenna connection. Move closer to the other radio or use a repeater. |
| Kualiti audio yang lemah. | Low battery, incorrect squelch level, or interference. | Charge battery. Adjust squelch level. Move away from sources of interference. |
| Hayat bateri adalah pendek. | High transmit power, frequent use, or aging battery. | Reduce transmit power. Limit continuous transmission. Consider replacing the battery if it's old. |
Spesifikasi
Rajah 18: Spesifikasi Teknikal Terperinci.
| kategori | Parameter | RA685 | RA85 |
|---|---|---|---|
| Umum | Julat Kekerapan | 144-146MHz (RX/TX), 430-440MHz (RX/TX) | GMRS |
| Saluran No. | 128CH | 60CH | |
| Jarak Saluran | 25/12.5kHz | 12.5kHz | |
| Input Voltage | 7.4 VDC | ||
| Bateri (konfigurasi standard) | 1800mAH (Li-Ion) | ||
| Battery Life (5-5-90, High power transmission) | Lebih kurang 14 Jam | ||
| Suhu Operasi | -20 ℃ hingga + 60 ℃ | ||
| Walkie-talkie size (With battery, but without antenna) | 121×61×33mm | ||
| Pemancar | Menghantar kuasa output | 5W / 3W / 1W | 5W / 0.5W |
| Modulasi | 16K0F3E@25KHz, 11K0F3E@12.5KHz | 16K0F3E@25KHz, 11K0F3E@12.5KHz | |
| Pelepasan palsu | -36dBm < 1GHz, -30dBm > 1GHz | ||
| Nisbah isyarat kepada bunyi FM | 45dB@25KHz, 40dB @ 12.5KHz | ||
| Herotan audio | ≤5% | ||
| Penerima | Menerima sensitiviti | 0.25μV (12dB SINAD) | |
| Pemilihan saluran bersebelahan | ≥60dB@25KHz, ≥55dB@12.5KHz | ||
| Imuniti intermodulasi | ≥60dB@25KHz, ≥55dB@12.5KHz | ||
| Menjalankan pelepasan palsu | ≤-57dB@25KHz, ≤-57dB @12.5KHz | ||
| Kuasa output audio | 1W @16ohms | ||
Waranti dan Sokongan
RETEVIS provides comprehensive support for its products. For warranty information, technical assistance, or service, please refer to the following:
- Pulangan Percuma: Dalam tempoh 90 hari selepas pembelian.
- Jaminan Penghantaran Cepat: Kumpul kupon $1.00 untuk penghantaran lewat. Bayaran balik jika bungkusan hilang atau barang rosak. Bayaran balik jika tiada penghantaran dalam 60 hari.
- Keselamatan & Privasi: Butiran peribadi anda dilindungi dan tidak dikongsi dengan pihak ketiga tanpa kebenaran.
- Software & Support: Drivers and firmware updates may be available on the official RETEVIS webtapak.
Figure 19: Software and Support options.
For further assistance, please contact RETEVIS customer service or visit their official webtapak.
