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Loud Clear Audio 16 Channels Thank you for purchasing the Zartek ZA-721 Portable Two Way Radio. This radio is easy to use and gives you reliable and clear communication. The ZA-721 UHF transceiver operates at 0.5W on both license-free bands namely 464 MHz consisting of 5 frequencies and 446MHz consisting of 8 frequencies.
If the product has been tampered with in any way, the warranty shall be considered null and void. For any queries, please email info@zartek.co.za Safety Information Study this manual carefully to understand your transceiver well.
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(1a-5a). Select the same channel on any ZA-721 radio to communicate. Compatibility: The ZA-721 is factory programmed to be directly compatible with all 16 channels on the TX-8, ZA-720 and ZA-723 radios and channels 1 to 12 on the ZA-748, ZA-725 and ZA-758 and the first 8 channels on the ZA-708 if they are set to factory programming.
Battery Information Initial Use New batteries are not charged fully in the factory. Please charge the battery for 4 hours at least before first use. This initial charge pre-conditions the battery for full capacity. Failure to charge fully may shorten the life span of the battery. Recharge the battery immediately once it goes flat as it could get damaged if left very flat for long periods.
Carefully unpack the transceiver. We recommend that you identify the items listed below before discarding the packing material. If any items are missing or have been damaged during shipment, contact the supplier immediately. For optional accessories, please visit our website www.zartek.co.za INCLUDES • Handheld UHF FM Transceiver •...
Getting Started Install & Remove the Battery Place the battery at the back of radio and slide battery closed until the latch clicks. To remove the battery, press down the PUSH lever in and slide the battery off. Install & Remove the Antenna Connect the rubber antenna to the top antenna socket by inserting the plug and turning in a clockwise direction.
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Charging the Battery When the battery capacity runs low, the radio will announce “Please change the battery” Desktop cradle: Connect the USB cable from desktop charger into the mains USB adaptor and plug into a wall socket. The desktop USB cradle can also be powered from a standard USB port rated at 5V and <500mA ...
Range will depend on the type of terrain that you are communicating across. The ZA-721 uses the UHF (Ultra High Frequency) band and will be subject to similar obstacle interference as cellular phones. The radio works indoors as well as outdoors.
Programming (optional) A programming cable is needed to program different channels or functions on the ZA-721. The programming cable links the radio to USB port on a PC or laptop. USB installation: Plug in the cable to a USB port, the computer should locate the cable and configure it automatically if using window 10.
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Connect the USB cable to the PC and plug-in the twin connector into the speaker/microphone jack on the side of the radio. Ensure that there is a charged battery connected to the radio and switch the radio on. Start the program and a window will appear.
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There are 38 CTCSS standard tones (1-38) plus 12 extra QT tones. The 38 tones are common on other 446 MHz radios such as the Zartek RX8, COM8 or PT8. If the tone is left “OFF”, the frequency is left “open” to receive communication from any tone, but your transmitter will not be decoded by a radio with a tone.
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VOX (Voice-operated Transmission) The ZA-721 has a multi-level sensitivity built-in VOX function. You can enjoy talking and listening without pressing PTT key as transmit is automatically activated by sound. This turns your radio into hands-free “walk & talk” when used with a headset.
Announce Voice Channel As the channels are changed, a voice announces the specific channel. This is useful when using the radio at night. Power Selection (only in dealer license version) Maximum communication range is achieved when the transceiver is set to high power mode, whilst lower power settings will save battery life.
Troubleshooting Problem Solution The battery pack may be dead. Recharge or replace the battery pack No power. The battery pack may not be installed correctly. Remove the battery pack and install it again. The battery pack life is finished. Replace the battery Battery power dies shortly after charging.
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TRANSMITTER Output power 500mW / 2W Modulation Mode 16KFΦF3E ≤±5kHz Maximum Frequency Deviation ≤5% Audio Distortion Spurious Radiation <7.5uW Modulation Noise <-40dB Current max <700mA / <2300mA Audio response (300-3000Hz) +6.5~-14dB Adjacent Channel Power >60dB Intermediation sensitivity 8~12mV RECEIVER ≤0.22uV Receiving Sensitivity ≥65dB Selectivity...
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