Introducció
The Uniden SX307-3C FRS 2-Way Radio is a lightweight, palm-sized communication device designed for reliable contact in various environments. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your radios.

Figure 1: Uniden SX307-3C FRS 2-Way Radios with included accessories.
Característiques clau
- Up to 30-Mile Range: Ideal for maintaining contact over long distances (actual range depends on terrain and conditions).
- 22 canals FRS: Proporciona ample communication options.
- 121 Privacy Codes: Enhances communication privacy by filtering unwanted transmissions.
- VOX Voice-Activated Control: Allows for hands-free operation with an optional headset (not included).
- 5 Call Tones: Differentiates between members of your group.
- Roger Beep: Indicates when a transmission is complete.
- Pantalla retroil·luminada: Millora la visibilitat en condicions de poca llum.
- Rechargeable AA NiMH Batteries: Convenient and eco-friendly power source.
- Micro USB Charge Jack with Y-Cable: Per a una càrrega còmoda.
- Conector d'auriculars: For private conversations with an optional VOX headset.
- Clips de cinturó amb mosquetó: Per a una fàcil portabilitat.
- Disseny lleuger: Easy to carry for extended periods.
Configuració
1. Instal·lació de la bateria
- Localitzeu la tapa del compartiment de la bateria a la part posterior de la ràdio.
- Slide the cover downwards and remove it.
- Insert the rechargeable AA NiMH batteries into the compartment, ensuring correct polarity (+/-).
- Replace the battery compartment cover, sliding it upwards until it clicks securely into place.

Figure 2: Battery installation for the Uniden SX307-3C radio.
2. Càrrega de les bateries
- Connect the Micro USB Y-cable to the charging port on each radio.
- Plug the USB end of the cable into a compatible USB power adapter (not included) or a powered USB port.
- The charging indicator on the radio will illuminate to show charging status.
- Espereu prou temps per a una càrrega completa abans del primer ús.

Figure 3: Uniden SX307-3C radios in charging cradles.
3. Attaching Belt Clips and Lanyards
- Align the belt clip with the designated slots on the back of the radio and slide it into place until it locks.
- For lanyard attachment, thread the lanyard through the carabiner loop located at the top of the radio.
Instruccions de funcionament
1. Engegada/Apagada i Volum
- To power on the radio, rotate the top knob clockwise until you hear a click and the display illuminates.
- Per apagar-lo, gireu el botó en sentit antihorari fins que sentiu un clic.
- Ajusteu el volum girant el mateix botó.
2. Selecció de canals
- Premeu el botó MENÚ button to enter channel selection mode.
- Utilitza el Amunt/Avall arrow buttons to select one of the 22 available FRS channels.
- Premeu MENÚ de nou per confirmar la vostra selecció.
3. Setting Privacy Codes (CTCSS/DCS)
- After selecting a channel, press MENÚ twice to enter privacy code selection.
- Utilitza el Amunt/Avall arrow buttons to select one of the 121 privacy codes.
- Premeu MENÚ to confirm. Both radios must be on the same channel and privacy code to communicate privately.
4. Transmissió i recepció (PTT)
- Per transmetre, premeu i manteniu premut el botó PTT (Prem per parlar) button located on the side of the radio.
- Parleu clarament al micròfon.
- Allibera el PTT botó per aturar la transmissió i esperar una resposta.
5. VOX (Voice-Activated Transmission)
- VOX allows hands-free communication. To activate, press MENÚ multiple times until the VOX setting appears.
- Utilitza el Amunt/Avall arrow buttons to select a VOX sensitivity level (higher numbers for lower sensitivity).
- Premeu MENÚ to confirm. An optional headset is recommended for optimal VOX performance.
6. Call Tones and Roger Beep
- Per enviar un to de trucada, premeu breument la tecla TRUCA button. There are 5 selectable call tones.
- The Roger Beep is an audible tone that sounds when you release the PTT button, signaling to other users that your transmission is complete. This feature can usually be toggled on/off via the menu.
7. NOAA Weather Channels with Alert
- The radios can receive emergency and weather broadcasts from the NOAA National Weather Service. Consult your radio's menu for specific instructions on accessing and setting up weather alerts.
8. Funció de llanterna
- To activate the built-in flashlight, locate the dedicated LAMP button or a multi-function button that controls the light. Press and hold or press briefly as per the radio's interface.

Figure 4: Front panel of the Uniden SX307-3C radio.
Manteniment
Cura de la bateria
- Always use the specified rechargeable AA NiMH batteries and charging accessories.
- Do not expose batteries to high temperatures or dispose of them in fire.
- Si no heu d'utilitzar la ràdio durant un període prolongat, traieu-ne les piles per evitar fuites.
Neteja
- Netegeu la ràdio amb un drap suauamp tela. No utilitzeu productes químics aggressivs ni netejadors abrasius.
- Assegureu-vos que la tapa del port de càrrega estigui ben tancada quan no es carrega per mantenir la resistència a l'aigua.
Resolució de problemes
| Problema | Possible solució |
|---|---|
| Sense poder | Check battery installation and charge level. Ensure batteries are correctly inserted and fully charged. |
| No es pot transmetre ni rebre | Verify both radios are on the same channel and privacy code. Check battery level. Ensure you are within range. |
| Àudio estàtic o poc clar | Move to an area with fewer obstructions. Adjust volume. Check for interference from other electronic devices. |
| Curt abast | Range is affected by terrain, weather, and obstructions. Try moving to higher ground or an open area. |
Especificacions
- Model: SX307-3C
- Marca: Uniden
- Nombre de canals: 22 canals FRS
- Codis de privadesa: 121
- Abast màxim de conversa: Fins a 30 quilòmetres (segons el terreny i les condicions)
- Interval de freqüència: 300 MHz - 3 GHz
- Font d'alimentació: Bateries recarregables AA NiMH
- Càrrega: Micro USB Charge Jack with Y-Cable
- Característiques especials: VOX, 5 Call Tones, Roger Beep, NOAA Weather Alert, Backlit Display, Lightweight, Carabiner Loop Belt Clips
- Nivell de resistència a l'aigua: Resistent a l'aigua (IPX4)
- Pes de l'article: 1.32 pounds (for the 3-pack)
- Dimensions del paquet: 10.59 x 8.74 x 3.46 polzades
Garantia i Suport
For warranty information and technical support, please refer to the documentation included with your product or visit the official Uniden weblloc web. Conserveu el comprovant de compra per a qualsevol reclamació de garantia.