Introducció
The Radtel RT-890 is a versatile multi-band amateur two-way radio designed for a wide range of communication needs. Featuring extensive frequency coverage, NOAA weather alerts, and advanced functions like one-key frequency copy, this radio is suitable for both amateur enthusiasts and professionals requiring reliable communication in various environments.
Característiques clau
- Full Band Coverage: 136-660MHz (RX/TX), 64-108MHz (FM Rx), 108-136MHz (Air Band Receiving at AM Mode).
- Canal meteorològic de la NOAA: 11 US weather channels for real-time alerts.
- Còpia de freqüència d'una sola clau: Quickly capture and decode frequencies from other radios.
- Automatic Frequency Match: Simplifies channel setup.
- Càrrega USB tipus C: Convenient and modern charging option.
- 999 canals de memòria: Ampemmagatzematge per a les teves freqüències preferides.
- Edita el nom del canal: Customize channel names for easy identification.
- Funció VOX: Transmissió activada per veu per a un funcionament amb mans lliures.
- Emergency Alert & SOS: Built-in safety features for critical situations.
- Funció d'escaneig: Efficiently scan for active frequencies.
- Estalvi de bateria: Extends battery life during prolonged use.
- Programació per a PC: Customize settings and channels via computer.
- DTMF Encoding/Decoding: Per a senyalització avançada.
- CTCSS/DCS: Privacy codes for interference-free communication.
- FM Standby Mode: Listen to FM radio while monitoring for radio traffic.
- TX Priority & TOT: Transmission priority and Time-Out Timer functions.
- Roger Beep: Audible tone indicating end of transmission.
- Bloqueig del canal ocupat: Prevents transmission on occupied channels.
- Scrambler/Companding: Enhances privacy and audio quality.
- FQSCAN: Detects frequency and CTCSS/DCS from other radios.
Guia de configuració
1. Instal·lació de la bateria
To install the battery, align the battery pack with the back of the radio and slide it into place until it clicks securely. To remove, press the release latch and slide the battery off.
2. Fixació de l'antena
Enrosqueu l'antena en sentit horari al connector de la part superior de la ràdio fins que quedi ben ajustada amb els dits. No l'estrengueu massa.
3. Càrrega inicial
Before first use, fully charge the radio's battery using the provided USB Type-C cable. Connect the cable to the Type-C port on the side of the radio and to a compatible USB power source.
Instruccions de funcionament
Encès/Apagat
Gireu el botó d'engegada/volum en sentit horari per encendre la ràdio. Continueu girant per ajustar el volum. Gireu en sentit antihorari fins que sentiu un clic per apagar la ràdio.
Modes de freqüència
The RT-890 supports various frequency bands for transmitting and receiving:
- FM Broadcast: 64-108 MHz (només recepció)
- Banda d'aire AM: 108-136 MHz (només recepció)
- VHF: 136-199 MHz (transmissió/recepció)
- Banda de 220 MHz: 200-299 MHz (transmissió/recepció)
- Banda de 350 MHz: 300-400 MHz (transmissió/recepció)
- UHF: 400-520 MHz (transmissió/recepció)
Navegació pel menú
Use the 'MENU' button to access the main menu. Use the up/down arrow keys to scroll through options. Press 'MENU' again to select an option, and 'EXIT A/B' to go back or exit the menu.
Alertes meteorològiques de la NOAA
The radio can receive 11 NOAA US weather channels. This feature allows you to stay informed about severe weather conditions, especially useful for outdoor activities.
One-Key Frequency Copy (FQSCAN)
This function allows the radio to detect and copy frequencies and CTCSS/DCS tones from another radio. Activate FQSCAN mode, place the RT-890 near the transmitting radio, and press the designated button to initiate the copy process. This is also referred to as 'Wireless Copy Frequency'.
Funció d’escaneig
The radio can scan through programmed channels or a frequency range to find active transmissions. Refer to the menu settings for 'Scan DIR' (Scan Direction) and 'Prior Channel Scanning' options.
Funció VOX
Voice-Operated Exchange (VOX) allows for hands-free transmission. When enabled, the radio will transmit automatically when it detects your voice. Adjust the VOX level and delay in the menu settings (Menu 15 and 17).
Manteniment i cura
- Neteja: Utilitzeu un suau, damp drap per netejar l'exterior de la ràdio. No utilitzeu productes químics agressius ni dissolvents.
- Cura de la bateria: Use only the designated charger. Do not disassemble the battery, put it into fire, or short-circuit it.
- Emmagatzematge: Guardeu la ràdio en un lloc fresc i sec quan no la feu servir. Traieu la bateria si la guardeu durant períodes prolongats.
- Resistència a l'aigua: This product is NOT waterproof/water-resistant. Avoid exposure to water or high humidity.
- Protecció física: The radio is designed with pressure and fall resistance, but avoid dropping it from significant heights or subjecting it to extreme impacts.
Resolució de problemes
No Power / Radio Not Turning On
- Assegureu-vos que la bateria estigui instal·lada correctament i completament carregada.
- Comproveu si els contactes de la bateria estan bruts o corrosius.
- Verify the power/volume knob is rotated clockwise sufficiently.
Poor Reception or Transmission Range
- Assegureu-vos que l'antena estigui ben connectada.
- Comproveu si hi ha obstacles (edificis, turons) entre les ràdios.
- Verify that you are operating within the optimal frequency ranges (136-174MHz / 400-520MHz for best performance).
- Confirm the correct CTCSS/DCS codes are set if privacy codes are in use.
- Environmental factors (terrain, weather) can significantly affect range.
Scanning Stops Frequently
- The scanner may be stopping on weak signals or noise. Adjust the SQ Level (Squelch Level) in the menu settings (Menu 12) to a higher value to filter out weaker signals.
- Check the scan resume settings in the menu to ensure it's configured as desired (e.g., time-operated, carrier-operated).
Problemes d'actualització del firmware
The radio is delivered with factory stock firmware. If you wish to upgrade to OEFM M70CM firmware, you will need to download the appropriate firmware and use a computer for the upgrade process. Ensure you download the correct version for your PCB (check Menu 46 for your PCB version):
- For 2.1 PCB: Download Firmware 2.1
- For 2.0 PCB: Download Firmware 2.0
Especificacions
| Atribut | Valor |
|---|---|
| Nom de marca | radtel |
| Número de model | RT-890 |
| Tipus de walkie-talkie | Portàtil |
| Potència de sortida (W) | 3W-5W |
| Interval de freqüència | 108-520 MHz |
| Canal d'emmagatzematge | 999 |
| Capacitat de la bateria (mAh) | 1100mA o 2000mA |
| Bateria inclosa | Sí |
| Interval màxim | 3 km-5 km |
| Impermeable / Resistent a l'aigua | No |
| És la pantalla | Sí |
| Material | Plàstic |
| Dimensions | 108*59*38 mm |
| Pes | 189g (no accessories) |
| NOAA Weather Channel | Sí |
| Air Band Receive | Sí |
Consells per a l'usuari
- Scanning Behavior: If the scanner stops on every signal, even weak ones, try increasing the squelch level (SQ Level) in the menu settings to filter out noise.
- Actualitzacions de firmware: Always check your radio's PCB version (Menu 46) before downloading and attempting a firmware update to ensure compatibility.
- Expectatives de rang: While rated for 3-5km, actual range can vary significantly based on environmental conditions, terrain, and obstructions. Optimal performance is typically achieved in open areas.
- DMR Compatibility: Please note that the Radtel RT-890 is an analog radio and does not support DMR (Digital Mobile Radio).
- Cobertura de freqüència: The radio is designed for full band TX/RX across 136-660MHz, with specific receive-only bands for FM (64-108MHz) and AM Air Band (108-136MHz).
Garantia i Suport
For warranty information, technical support, or service inquiries, please refer to the official Radtel weblloc web o poseu-vos en contacte amb el vostre distribuïdor autoritzat. Conserveu el rebut de compra com a comprovant de compra.
