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ZA-721 

TWO-WAY RADIO 

UHF HANDHELD FM TRANSCEIVER 

 

USERS MANUAL

 

 

  Extra Long Range 

  Robust & Durable 

  Li-ion Battery 

  Desktop USB Charger 

  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. This transceiver is also 
approved by ICASA to operate on licensed bands from 400 

– 470MHz on 2W of 

transmitting power. 
 
Please read this manual carefully before using the radio. The information presented 
here will ensure that you get maximum performance and functionality from the radio. 
There are also important battery and charging maintenance procedures. 
 
High strength materials and quality components have been used in the manufacture 
of this two-way radio to give many years of product use. It is designed for every day 
security or general use both indoors and outdoors. The ZA-721 radio is durable and 
easy to operate.

 

Summary of Contents for ZA-721

Page 1: ...of 8 frequencies This transceiver is also approved by ICASA to operate on licensed bands from 400 470MHz on 2W of transmitting power Please read this manual carefully before using the radio The infor...

Page 2: ...ceiver or replace charge the battery in an explosive environment dust gas fumes etc Do not transmit without the correct antenna connected fully or the radio could get damaged Switch the transceiver of...

Page 3: ...channel Note that Channel 9 10 11 are set on the open frequency without a sub tone and channels 13 to 16 have been set with a tone 20 for more privacy A sub tone is used to privatise conversations wh...

Page 4: ...ry pack and will lengthen charge time 6 During charging do not plug in pull out the power supply or the battery frequently it would affect battery charging 7 Do not charge when the battery or radio is...

Page 5: ...ng 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 T...

Page 6: ...ion Make sure that the antenna is fully connected until tight Note that the radio requires the antenna to function Do not transmit without an antenna connected as this could damage the radio Install R...

Page 7: ...high or too low Only use the supplied charging adaptors or those recommended to recharge the radio and battery Note that the battery can be recharged separately from the radio using the desktop charg...

Page 8: ...uld be held so that the antenna is vertical Speak slowly loud and clear into the radio for a good signal to be received Receive Release the PTT key to receive a call and adjust the volume if needed Mo...

Page 9: ...ocking the antenna The less metal in close proximity 0 2m the better the range There may be external interference from electrical equipment power lines or factories or natural causes moisture in the a...

Page 10: ...nel and optional feature data is entered click the WRITE icon to program the radio Press WRITE to begin writing the data to the radio Once finished switch the radio off and unplug the cable from the r...

Page 11: ...ng standby time While the channel is not busy and no operation is performed for 10 seconds Battery Save turns ON When a signal is received or an operation is performed Battery Save turns OFF Factory p...

Page 12: ...t high sensitivity a soft voice is all that is required which enable the radio to be placed at a further distance from the noise source typically 30cm max Scan A scan function is useful when you want...

Page 13: ...to monitor a frequency by deactivating the squelch This is useful when you want to adjust the volume level or when you need to hear a weak signal Scan Switch the channel scan mode ON OFF to search sel...

Page 14: ...your group Other group members may be too far away Make sure you are within range of the other transceivers Other voices besides group members are present on the channels Change the QT DQT Be sure to...

Page 15: ...tion 5 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 Receiving Sensi...

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