Návod k použití obousměrného rádia Cobra ACXT390

1. Úvod

The Cobra ACXT390 Walkie Talkies are compact and lightweight two-way radios designed for reliable communication. They feature 22 channels and 121 privacy codes, offering a total of 2662 channel combinations to minimize interference. Equipped with a built-in NOAA radio receiver, these radios provide 24/7 access to weather alerts, ensuring preparedness for changing conditions. Voice-activated (VOX) transmission allows for hands-free operation, and five selectable call tones help distinguish between different parties.

This manual provides essential information for the proper setup, operation, and maintenance of your Cobra ACXT390 two-way radios.

2. Nastavení

2.1 Obsah balení

Než začnete, ověřte, zda je v balení přítomno vše:

• 2x Cobra ACXT390 Walkie Talkies
• 2x spony na opasek
• 6x AA NiMH Rechargeable Batteries
• 1x nabíjecí dok
• 1x USB-Y Cable

Figure 1: Cobra ACXT390 Package Contents

2.2 Instalace baterie

Your Cobra ACXT390 radios use 3 AA NiMH rechargeable batteries per unit. To install or replace batteries:

1. Ujistěte se, že je rádio vypnuté.
2. Najděte kryt přihrádky na baterie na zadní straně rádia.
3. Press down on the release tab (if present) and slide the cover off.
4. Insert 3 AA NiMH batteries, observing the correct polarity (+/-) as indicated inside the compartment.
5. Nasaďte zpět kryt přihrádky na baterie a ujistěte se, že bezpečně zacvakne na místo.

2.3 Nabíjení rádií

The included charging dock and USB-Y cable allow you to recharge the NiMH batteries while they are inside the radios.

1. Connect the USB-Y cable to the charging dock and a compatible USB power source (e.g., wall adapter, computer USB port).
2. Place the radios into the charging slots on the dock. Ensure the charging contacts on the radio align with those on the dock.
3. A charging indicator light on the radio or dock will illuminate, indicating that charging has begun.
4. Allow sufficient time for a full charge (refer to the full user manual for specific charging times).

3. Provoz

3.1 Zapnutí/vypnutí

Chcete-li rádio zapnout, stiskněte a podržte tlačítko Moc dokud se displej nerozsvítí. Pro vypnutí stiskněte a podržte tlačítko Moc tlačítko znovu, dokud se displej nevypne.

3.2 Výběr kanálu

Your ACXT390 radios offer 22 channels. To change channels:

1. Stiskněte tlačítko Režim button until the channel number flashes on the display.
2. Použijte Up or Dolů šipkami vyberte požadovaný kanál.
3. Stiskněte tlačítko Režim znovu stiskněte tlačítko nebo počkejte několik sekund na potvrzení výběru.

3.3 Kódy ochrany osobních údajů (CTCSS/DCS)

The radios support 121 privacy codes (38 CTCSS / 83 DCS) to help reduce interference from other users on the same channel.

1. Po výběru kanálu stiskněte tlačítko Režim button until the privacy code number flashes.
2. Použijte Up or Dolů arrow buttons to select your desired privacy code.
3. Stiskněte tlačítko Režim button again or wait for the selection to be confirmed.

3.4 Nastavení hlasitosti

Použijte Zvýšení hlasitosti a Snížit hlasitost buttons (often integrated with the channel buttons) to adjust the listening volume.

3.5 Vysílání a přijímání

Pro přenos stiskněte a podržte Mluvit button (usually on the side of the radio) and speak clearly into the microphone. Release the Mluvit tlačítko pro příjem.

3.6 VOX (hlasově aktivovaný přenos)

VOX allows for hands-free communication. When activated, the radio will automatically transmit when it detects your voice.

Figure 2: VOX, Call Tones, and Channel Scan Features

3.7 volacích tónů

The ACXT390 features 5 selectable call tones. To send a call tone, briefly press the Volání button. This alerts other radios on the same channel to an incoming transmission.

3.8 Kanálové skenování

The channel scan feature allows you to automatically scan all 22 channels for activity. To activate, press the Skenovat button. The radio will stop on any active channel. Press Skenovat znovu pro obnovení skenování.

3.9 meteorologických kanálů NOAA

Access 24/7 NOAA weather channels to stay informed about local weather conditions and emergencies. To access, press the dedicated Počasí button (if available) or cycle through modes until the weather channel is displayed.

Figure 3: Weather-Resistant Design and NOAA Weather Channels

3.10 Understanding Range

The advertised range of up to 25 miles is achieved under ideal conditions, such as flat, open terrain with a clear line of sight and no obstructions. In real-world scenarios, the effective range can be significantly shorter due to various factors:

• Urban Environments: Buildings and other structures can reduce the range to approximately 0.5 to 1.5 miles.
• Forested or Hilly Areas: Dense foliage and uneven terrain can further limit the range, often to less than a mile.
• Povětrnostní podmínky: Atmospheric conditions can impact signal propagation.

Figure 4: Walkie Talkie Range Explained

4. Údržba

4.1 Obecná péče

• Očistěte rádio měkkým hadříkemamp tkanina. Nepoužívejte abrazivní čisticí prostředky nebo rozpouštědla.
• Avoid exposing the radio to extreme temperatures, humidity, or direct sunlight for extended periods.
• The radios are weather-resistant (IPX2), meaning they can withstand light splashes, but are not designed for submersion.

4.2 Péče o baterii

• Always use the included rechargeable NiMH batteries and charging dock for optimal performance and safety.
• If storing the radios for an extended period, remove the batteries to prevent leakage.
• Staré baterie zlikvidujte zodpovědně v souladu s místními předpisy.

5. Řešení problémů

5.1 Bez napájení

• Check if the batteries are correctly installed and fully charged.
• Ensure the power button is pressed and held until the display turns on.

5.2 Poor Range or Static

• Verify that both radios are on the same channel and privacy code.
• Move to an open area with fewer obstructions (buildings, dense foliage, hills).
• Ensure batteries are fully charged, as low power can affect range.
• Consider the environmental factors affecting usable range as explained in Section 3.10.

5.3 Nelze vysílat ani přijímat

• Potvrďte, že Mluvit button is being pressed during transmission.
• Check if the radio is in VOX mode; if so, ensure you are speaking loud enough to activate transmission.
• Verify that the volume is set to an audible level.

6. Specifikace

7. Záruka a podpora

Cobra products are USA engineered and supported, reflecting over 50 years of proven reliability. For detailed warranty information, product registration, or technical support, please visit the official Cobra Electronics webnebo kontaktujte jejich oddělení zákaznických služeb.

Uschovejte si doklad o koupi pro záruční reklamaci.