1. Réamhrá
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.
I measc na bpríomhghnéithe tá:
- Dlúth agus Meáchan Éadrom: 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.
- Glan Fuaim: 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.
- Ceallraí In-athluchtaithe: Equipped with a 1000mAh Li-ion battery for extended standby and usage times.
- Úsáideoir-cairdiúil: Simple operation with quick access to multiple functions via side buttons and keyboard shortcuts.
- Dearadh Buan: Constructed from robust ABS anti-fall material for comprehensive protection.
2. Faisnéis Sábháilteachta
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.
- Sábháilteacht Battery: Use only the specified battery and charger. Do not short-circuit, incinerate, or disassemble the battery.
- Muirearú: Charge the radio in a well-ventilated area. Do not charge in extreme temperatures.
- Antenna: Ná déan teagmháil leis an antenna le linn tarchuir.
- Cur isteach: Turn off the radio in areas where radio devices are prohibited, such as hospitals or aircraft.
- Nochtadh Uisce: While water repellent (IPX4), avoid submerging the radio in water.
- Díchóimeáil: Do not attempt to disassemble or modify the radio. Repairs should only be performed by authorized personnel.
- Cosaint Éisteachta: Keep the volume at a moderate level to avoid hearing damage, especially when using earpieces.
3. Ábhar Pacáiste
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 Battery Litiam
- 2 x Cábla Muirir Cineál-C
- 2 x Clip Chreasa
- 1 x Lámhleabhar Úsáideora
4. Táirge Tharview
Familiarize yourself with the components of your Retevis RT622 radio:

Figure 1: Retevis RT622 Radio Components
- Antenna: Chun comharthaí a tharchur agus a ghlacadh.
- 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 Key (Push-to-Talk): Brúigh agus coinnigh síos chun tarchur, scaoil chun glacadh.
- Cainteoir: Outputs received audio.
- MIC / Speaker Port: Chun gabhálais fuaime seachtracha a nascadh.
- Micreafón: For voice input during transmission.
- Channel Selector Plus (+): Méaduithe ar an líon cainéal.
- Channel Selector Reduce (-): Laghdaíonn sé uimhir an chainéil.
- Eochair Ghlasála: Used in combination with channel buttons for specific functions like keypad lock.
- Breiseán USB: Calafort Cineál-C le haghaidh muirir.
- Ceanglóir Muirear: Connects to the charging cable.
5. Socrú
5.1. Muirearú an Battery
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.

Figure 2: Type-C Direct Charging
5.2. An Gearrthóg Creasa a cheangal
The RT622 comes with a removable belt clip for easy portability.
- Ailínigh an gearrthóg crios leis na claiseanna ar chúl an raidió.
- Sleamhnaigh an ghearrthóg suas go dtí go gcliceálann sé go daingean ina áit.
- To remove, push the release tab (if present) and slide the clip downwards.

Figure 3: Attaching the Removable Belt Clip
6. Treoracha Oibriúcháin
6.1. Cumhacht Ar Siúl/Múch agus Coigeartú Toirte
To turn the radio on or off and adjust the volume:
- Cumhacht ar: Rotate the Power/Voice Volume knob clockwise until you hear a click. The radio will announce the current channel.
- Coigeartú Toirt: Continue rotating the Power/Voice Volume knob clockwise to increase volume, or counter-clockwise to decrease volume.
- Múch: Rotate the Power/Voice Volume knob counter-clockwise until you hear a click.
6.2. Roghnú Cainéal
The RT622 supports 16 PMR446 channels.
- Brúigh an Channel Selector Plus (+) button to move to a higher channel number.
- Brúigh an Channel Selector Reduce (-) button to move to a lower channel number.
- The radio will announce the selected channel number.
6.3. Tarchur agus Glacadh
- Chun Tarchur: Brúigh agus coinnigh an PTT (Brúigh chun Cainte) button. Speak clearly into the microphone. The signal light will illuminate red.
- Chun a fháil: Release the PTT button. The signal light will illuminate green when a signal is received.
6.4. VOX (Voice Operated Exchange) Function
The VOX function allows for hands-free transmission when your voice is detected.

Figure 4: Activating VOX Function
To quickly activate the VOX function:
- Tune the radio to channel 7.
- Múch an raidió.
- Brúigh agus coinnigh an Channel Selector Plus (+) button while turning the radio back on.
- You will hear a voice prompt indicating "VOX ON" or "VOX OFF".
6.5. Feidhm Glasála Méarchláir
The keypad lock prevents accidental changes to settings during use.

Figure 5: Keypad Lock/Unlock
Chun an eochaircheap a ghlasáil nó a dhíghlasáil:
- In standby mode, simultaneously press the Channel Selector Plus (+) agus Channel Selector Reduce (-) cnaipí.
- A single beep indicates the radio is locked. Repeat the process to unlock.
6.6. Athrú Teanga
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.
- Múch an raidió.
- Brúigh agus coinnigh an Channel Selector Plus (+) button while turning the radio back on.
- The language will switch between Chinese and English.
7. Cothabháil
7.1. Battery Care and Power Saving
Cinntíonn cúram ceart ceallraí feidhmíocht agus fad saoil is fearr.

Figure 7: Battery Management Features
- Feidhm Sábháil Cumhachta: If there is no operation for more than 10 seconds, the power saving function will automatically activate and resume upon receiving a signal.
- Rabhadh Battery Íseal: Nuair a bheidh an ceallraí voltage drops to its lowest level, the radio will emit a "Please Charge" tone, indicating that the battery needs recharging or replacement.
- Timthriall Muirir: For best battery life, avoid frequent partial charges. Fully charge and discharge the battery periodically.
- Stóráil: 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. Glanadh
- Glan dromchla an raidió le clúdach bog,amp éadach.
- Ná húsáid ceimiceáin ghéara, tuaslagóirí ná glantóirí scríobacha.
- Ensure the charging port cover is securely closed to prevent dust and moisture ingress.
7.3. Marthanacht

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. Fabhtcheartú
If you encounter issues with your Retevis RT622 radio, refer to the following common troubleshooting steps:
| Fadhb | Cúis Féideartha | Réiteach |
|---|---|---|
| Ní théann an raidió ar siúl | Tá an ceallraí ídithe nó níl sí suiteáilte i gceart. | Charge the battery fully. Ensure the battery is correctly seated. |
| Ní féidir tarchur ná glacadh | Incorrect channel selected. Out of range. Battery low. | Verify both radios are on the same channel. Move closer to the other radio. Recharge battery. |
| Droch-chaighdeán fuaime nó statach | 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. |
| Níl an méarchlár neamhfhreagrach | Tá glas méarchláir gníomhach. | Unlock the keypad by simultaneously pressing CH+ and CH- (Section 6.5). |
9. Sonraíochtaí
Detailed technical specifications for the Retevis RT622 Two-Way Radio:
- Branda: Retevis
- Uimhir Mhúnla: EUA9121H
- Dath: Dubh
- Líon Cainéil: 16
- Raon Minicíochta: 446.00625-446.19375MHz (PMR446)
- Raon Cainte Uasmhéid: 3 Kilometers (in open and unobstructed areas)
- Imltage: 3 Volta
- Leibhéal Friotaíocht Uisce: Water Repellent (IPX4)
- Toisí an Táirge (D x L x A): 2.1 x 5.5 x 13.5 cm
- Meáchan Mír: 113 Grams (battery included)
- Cineál Battery: ian Litiam
- Meánshaol Battery: 10 Hours (continuous use)
- Am Fuireachas: Thart ar 72 uair an chloig
- Torann Inchloiste: 40 Deicibeil
- Raon Teochta: -20 go 50 Céim Celsius
- Gléasanna Comhoiriúnacha: Walkie talkies with the same PMR frequency band and Kenwood dual pin headphones.
10. Barántas agus Tacaíocht
Retevis provides comprehensive warranty and support for your RT622 Two-Way Radio:
- Tréimhse an Bharántas: 2-year warranty for the radio body and 1-year warranty for accessories.
- Polasaí um Fhilleadh: 30 days no-reason return policy.
- Seirbhís Iar-Bharántas: Maintenance services are available beyond the warranty period; buyers are responsible for associated costs.
- Tacaíocht do Chustaiméirí: For any inquiries or support needs, please contact Retevis customer service on Amazon. We aim to reply within 12 hours.