1. Kirish
The Retevis RT622 is a compact and lightweight PMR446 two-way radio designed for clear and reliable communication. This license-free radio features a durable build, VOX hands-free operation, and a long-lasting rechargeable battery, making it suitable for various applications from outdoor activities to professional use in environments like restaurants or schools.
Asosiy xususiyatlarga quyidagilar kiradi:
- Yilni va engil: Weighs only 113g and measures 2.14cm wide, making it highly portable.
- PMR446 License-Free: Operates on PMR446 frequencies, ready for use out of the box.
- Ovozni tozalash: Built-in CTCSS/DCS for filtering unwanted signals and ensuring crisp audio.
- VOX Hands-Free: Automatically transmits when voice is detected, eliminating the need to press the PTT button.
- Zaryadlanuvchi batareya: Equipped with a 1000mAh Li-ion battery for extended standby and usage times.
- Foydalanish uchun qulay: Simple operation with quick access to multiple functions via side buttons and keyboard shortcuts.
- Bardoshli dizayn: Constructed from robust ABS anti-fall material for comprehensive protection.
2. Xavfsizlik ma'lumotlari
Please read and understand all safety instructions before using your Retevis RT622 two-way radio. Failure to follow these instructions may result in injury, damage to the radio, or voiding your warranty.
- Batareya xavfsizligi: Use only the specified battery and charger. Do not short-circuit, incinerate, or disassemble the battery.
- Zaryadlash: Charge the radio in a well-ventilated area. Do not charge in extreme temperatures.
- Antenna: Do not touch the antenna during transmission.
- Interferentsiya: Turn off the radio in areas where radio devices are prohibited, such as hospitals or aircraft.
- Suvga ta'sir qilish: While water repellent (IPX4), avoid submerging the radio in water.
- Ajratish: Do not attempt to disassemble or modify the radio. Repairs should only be performed by authorized personnel.
- Eshitish himoyasi: Keep the volume at a moderate level to avoid hearing damage, especially when using earpieces.
3. Paket tarkibi
Upon unpacking your Retevis RT622 Two-Way Radio, please verify that all items listed below are present and in good condition:
- 2 x Retevis RT622 Two-Way Radio
- 2 x Lityum batareya
- 2 x Type-C zaryadlovchi kabeli
- 2 x kamar qisqichi
- 1 x Foydalanuvchi qo'llanmasi
4. Mahsulot tugadiview
Familiarize yourself with the components of your Retevis RT622 radio:

Figure 1: Retevis RT622 Radio Components
- Antenna: Signallarni uzatish va qabul qilish uchun.
- Power/Voice Volume Knob: Rotate to turn the radio on/off and adjust volume.
- Charger Light / Signal Light: Indicates charging status or signal activity.
- PTT tugmasi (Push-to-Gap): O'tkazish uchun bosing va ushlab turing, qabul qilish uchun qo'yib yuboring.
- Spiker: Chiqishlar qabul qilingan audio.
- MIC / Speaker Port: Tashqi audio aksessuarlarni ulash uchun.
- Mikrofon: Uzatish vaqtida ovozli kiritish uchun.
- Channel Selector Plus (+): Kanal sonini oshiradi.
- Channel Selector Reduce (-): Kanal raqamini kamaytiradi.
- Qulf kaliti: Used in combination with channel buttons for specific functions like keypad lock.
- USB vilkasi: Zaryadlash uchun Type-C porti.
- Zaryadlovchi ulagichi: Connects to the charging cable.
5. Sozlash
5.1. Batareyani zaryadlash
Before initial use, fully charge the radio's lithium-ion battery. The RT622 supports convenient Type-C direct charging.
- Connect the Type-C charging cable to the USB plug on the side of the radio.
- Connect the other end of the cable to a compatible USB power source (e.g., wall adapter, power bank, PC, car charger).
- The charger light will indicate charging status. Refer to the radio's LED indicator for full charge notification.

2-rasm: C-toifa to'g'ridan-to'g'ri zaryadlash
5.2. Kamar qisqichini mahkamlash
The RT622 comes with a removable belt clip for easy portability.
- Kamar qisqichini radioning orqa tomonidagi oluklar bilan tekislang.
- Slide the clip upwards until it clicks securely into place.
- To remove, push the release tab (if present) and slide the clip downwards.

Figure 3: Attaching the Removable Belt Clip
6. Foydalanish bo'yicha ko'rsatmalar
6.1. Quvvatni yoqish/o‘chirish va ovoz balandligini sozlash
To turn the radio on or off and adjust the volume:
- Yoqilgan: Rotate the Power/Voice Volume knob clockwise until you hear a click. The radio will announce the current channel.
- Ovoz balandligini sozlash: Continue rotating the Power/Voice Volume knob clockwise to increase volume, or counter-clockwise to decrease volume.
- O'chirish: Rotate the Power/Voice Volume knob counter-clockwise until you hear a click.
6.2. Kanal tanlash
The RT622 supports 16 PMR446 channels.
- ni bosing Channel Selector Plus (+) button to move to a higher channel number.
- ni bosing Channel Selector Reduce (-) button to move to a lower channel number.
- The radio will announce the selected channel number.
6.3. Qabul qilish va uzatish
- O'tkazish uchun: ni bosing va ushlab turing PTT (Push-to-Talk) button. Speak clearly into the microphone. The signal light will illuminate red.
- Qabul qilish uchun: Release the PTT button. The signal light will illuminate green when a signal is received.
6.4. VOX (Voice Operated Exchange) Function
VOX funksiyasi ovozingiz aniqlanganda qo'llarni ishlatmasdan uzatish imkonini beradi.

Figure 4: Activating VOX Function
To quickly activate the VOX function:
- Tune the radio to channel 7.
- Radioni o'chiring.
- ni bosing va ushlab turing Channel Selector Plus (+) button while turning the radio back on.
- You will hear a voice prompt indicating "VOX ON" or "VOX OFF".
6.5. Keypad Lock Function
The keypad lock prevents accidental changes to settings during use.

Figure 5: Keypad Lock/Unlock
Klaviaturani bloklash yoki ochish uchun:
- In standby mode, simultaneously press the Channel Selector Plus (+) va Channel Selector Reduce (-) tugmalar.
- A single beep indicates the radio is locked. Repeat the process to unlock.
6.6. Tilni almashtirish
You can switch the voice prompt language between Chinese and English.

Figure 6: Switching Language
To switch the language:
- Tune the radio to channel 16.
- Radioni o'chiring.
- ni bosing va ushlab turing Channel Selector Plus (+) button while turning the radio back on.
- The language will switch between Chinese and English.
7. Xizmat ko'rsatish
7.1. Battery Care and Power Saving
Proper battery care ensures optimal performance and longevity.

Figure 7: Battery Management Features
- Quvvatni tejash funktsiyasi: If there is no operation for more than 10 seconds, the power saving function will automatically activate and resume upon receiving a signal.
- Batareya kamligi haqida ogohlantirish: Batareya hajmi qachontage drops to its lowest level, the radio will emit a "Please Charge" tone, indicating that the battery needs recharging or replacement.
- Zaryadlash davri: For best battery life, avoid frequent partial charges. Fully charge and discharge the battery periodically.
- Saqlash: If storing the radio for an extended period, ensure the battery is partially charged (around 50%) and store in a cool, dry place.
7.2. Tozalash
- Radioning sirtini yumshoq mato bilan artib oling, damp mato.
- Qattiq kimyoviy moddalar, erituvchilar yoki abraziv tozalash vositalaridan foydalanmang.
- Chang va namlikning kirib kelishiga yo'l qo'ymaslik uchun zaryadlash porti qopqog'i mahkam yopilganligiga ishonch hosil qiling.
7.3. Chidamlilik

Figure 8: Strong Shell Material
The RT622 is built with a strong PC material shell, providing superior impact and abrasion resistance, making it suitable for various outdoor and demanding environments.
8. Muammolarni bartaraf qilish; nosozliklarni TUZATISH
If you encounter issues with your Retevis RT622 radio, refer to the following common troubleshooting steps:
| Muammo | Mumkin sabab | Yechim |
|---|---|---|
| Radio yoqilmaydi | Batareya quvvati tugagan yoki to'g'ri o'rnatilmagan. | Batareyani to'liq zaryadlang. Batareyaning to'g'ri o'rnatilganligiga ishonch hosil qiling. |
| Yuborish yoki qabul qilish mumkin emas | Incorrect channel selected. Out of range. Battery low. | Verify both radios are on the same channel. Move closer to the other radio. Recharge battery. |
| Poor sound quality or static | Weak signal. Interference. Volume too low/high. | Move to an open area. Adjust volume. Ensure no obstructions. |
| VOX function not working | VOX is off. Microphone sensitivity too low. | Activate VOX as per instructions (Section 6.4). Ensure you are speaking clearly into the microphone. |
| Klaviatura javob bermayapti | Klaviatura bloki faol. | Unlock the keypad by simultaneously pressing CH+ and CH- (Section 6.5). |
9. Texnik shartlar
Detailed technical specifications for the Retevis RT622 Two-Way Radio:
- Brend: Retevis
- Model raqami: EUA9121H
- Rang: Qora
- Kanallar soni: 16
- Chastota diapazoni: 446.00625-446.19375MHz (PMR446)
- Maksimal suhbat diapazoni: 3 Kilometers (in open and unobstructed areas)
- jildtage: 3 volt
- Suvga chidamlilik darajasi: Water Repellent (IPX4)
- Mahsulot o'lchamlari (D x G x Y): 2.1 x 5.5 x 13.5 sm
- Mahsulot og'irligi: 113 Grams (battery included)
- Batareya turi: Lityum ion
- Batareyaning o'rtacha ishlash muddati: 10 Hours (continuous use)
- Kutish vaqti: Taxminan 72 soat
- Eshitiladigan shovqin: 40 desibel
- Harorat oralig'i: -20 dan 50 darajagacha
- Mos qurilmalar: Walkie talkies with the same PMR frequency band and Kenwood dual pin headphones.
10. Kafolat va qo'llab-quvvatlash
Retevis provides comprehensive warranty and support for your RT622 Two-Way Radio:
- Kafolat muddati: Radio korpusi uchun 2 yillik kafolat va aksessuarlar uchun 1 yillik kafolat.
- Qaytarish siyosati: 30 kunlik sababsiz qaytarish siyosati.
- Kafolatdan keyingi xizmat: Maintenance services are available beyond the warranty period; buyers are responsible for associated costs.
- Mijozlarni qo‘llab-quvvatlash: For any inquiries or support needs, please contact Retevis customer service on Amazon. We aim to reply within 12 hours.