Zartek ZA-720 User Manual Download Page 13

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TROUBLESHOOTING

Problem

Solution

No power.

 

y

The battery pack may be dead. 

Recharge or replace the battery pack.

 

y

The battery pack may not be installed cor-

rectly. Remove the battery pack and install 

it again.

Battery power dies shortly 

after charging.

 

y

The battery pack life is finished.

 

Replace the battery pack with a new one.

Cannot talk to or hear 

other members in your 

group.

 

y

Check that the Antenna is fitted correctly.

 

y

Make sure you are using the same frequen-

cy and QT/DQT as the other members in 

your group.

 

y

Other group members may be too far away. 

Make sure you are within range of the other 

transceivers.

Other voices (besides 

group members) are pres-

ent on the channels.

 

y

Change the QT/DQT. Be sure to change 

the tone on all transceivers in your group.

The transceiver continu-

ously rings

 

y

Channel programming is empty.

SPECIFICATION

General

Frequency range

UHF 400-470MHz

Memory channels

16

Operation voltage

3.7V DC

Frequency stability

±2.5ppm

Operation temperature

-20°C~+50°C

Mode of operation

Simplex

Antenna impedance

50Ω

Transmitter

RF Power

0.5W / 2W

Maximum deviation (W/N)

≤ 5KHz / ≤ 2.5KHz

Spurious emission

≤ 7.5μW

Adjacent channel power

≤ -65dB / ≤ -60dB

SNR (W/N)

≥ -45dB / ≥ -40dB

QT/DQT (W/N)

0.7±0.1KHz / 0.4±0.1KHz

Modulation sensitivity

8-12mV

Transmission current

≥ 1.2A

Receiver

Sensitivity

-122dBm (12dB SINAD)

Audio power

0.4W (8R Load)

Audio distortion

≤ 10%.

lntermediation(W/N)

≥ 65dB / ≥ 60dB

Adjacent channel selectivity (W/N)

≥ 65dB / ≥ 60dB

Clutter suppression

≥ 65dB

Receiver current

≤ 380mA

Summary of Contents for ZA-720

Page 1: ...USER S MANUAL Extra Long Range Ultra Thin Durable Li ion Battery Desktop Charger Loud Clear Audio 16 Channels...

Page 2: ...0 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 rad...

Page 3: ...ct a different channel Note that Channel 9 10 11 are set on the open frequency with out 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 c...

Page 4: ...ther settings such as Squelch level VOX or reassigning the side key for different functions can also be programmed Licence free use of this transceiver limits the fre quencies to the 446MHz and 464MHz...

Page 5: ...List 1 RADIO OVERVIEW 2 GETTING STARTED 3 Install Remove the Battery 3 Install Remove the Antenna 3 Install Remove the headset programming cable 3 Charging the Battery 3 BASIC OPERATION 5 Power ON OF...

Page 6: ...ite www zartek co za Item List Item Quantity Handheld UHF FM Transceiver 1 Detachable Antenna 1 Desktop Mains Charger 1 Li ion Battery Pack 1600mAH 1 Belt Clip 1 Users Manual 1 RADIO OVERVIEW Detachab...

Page 7: ...adio Using desktop cradle Plug the cable from mains adaptor into the back of the desktop cradle and then insert the radio in the cradle Light on the cradle will show RED when charging and GREEN when f...

Page 8: ...r phones The radio works indoors as well as outdoors Typical rough estimate ranges for different terrains are y y Indoors or Shopping centre 300m 1200m y y Building 5 30 stories y y City centre dense...

Page 9: ...programming cable Check the Settings Communication Port to select the correct COM port Reading data Click on the READ icon and press OK to begin reading the data from the radio Once loaded the data c...

Page 10: ...0 DQT digital quiet tones that can be selected These tones are used to privatize conversations and reduce in terference from other users on the same frequency A CTCSS QT DQT tone is a sub audible tone...

Page 11: ...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 Voice ac...

Page 12: ...r license version Maximum communication range is achieved when the transceiver is set to high power mode whilst lower power settings will save battery life The power can be set on low 500mW or High 2W...

Page 13: ...es besides group members are pres ent on the channels y y Change the QT DQT Be sure to change the tone on all transceivers in your group The transceiver continu ously rings y y Channel programming is...

Page 14: ...NOTE...

Page 15: ......

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