Caltta DH590 User manual

DH590
Digital Portable Radio
Quick Start Guide

Copyright ©CALTTA TECHNOLOGIES CO., LTD. 2021
No part of this publication may be quoted, reproduced, translated or used in any form or by
any means, electronic or mechanical, including photocopying and microfilm, without the prior
written permission of CALTTA TECHNOLOGIES CO., LTD.
Violators Will Be Prosecuted.
CALTTA TECHNOLOGIES CO., LTD. reserves the right to make modifications on
typographical errors or update specifications in this guide without prior notice.
The figures in this manual are for reference only. For the product structure and specifications
of the battery and charger, please refer to the actual product. The accessories provided with
the product may vary with product models and functions.
LEGAL INFORM ATION

1
PTT key  Top key
Side key 1  Antenna
Side key 2  Microphone

LED indicator  Up key
Channel selection rotary knob  Back/Group call
mana
g
ement ke
y
Power /Volume rotary knob  Hook key
LCD  Down key
OK/Menu key  Battery button
Call/Answer key  Accessory interface
 Digit keypad  Battery
 Speaker
No. Ite m Nam e No. Ite m Nam e
1. GET TO KNOW Y OUR RADI O
1.1 Components

2
2. ST ATUS INDI CAT OR
2.1 LCD (Status Symbols)
1.2 PROGRAMMABLE KEYS
To facilitate operations, your radio provides three programmable keys (Side key 1, Side
key 2, and the Top key), and each programmable key can be assigned with one of the
following functions by the product distributor through setting shown as the following table.
No. Function De sc ription
None Do not assign function
Keypad lock/unlock Lock or unlock the keypad immediately
Power level Adjust transmit power level quickly
Call logs Open the Call Logs menu directly
Contact list Open the contact list directly
Message Open the text message menu directly
Channel up/down Switch channel through button
Scan on/off Enable or disable scanning function
Squelch on/off Enable or disable squelch function
 Roaming on/off Enable or disable roaming function
Icon Nam e Icon St atus Description
Signal Strength
No signal.
The more signal bars, the stronger
the signal.
Message
You have unread message.
Message inbox is full.
Scan
Your radio is in scanning mode.
Your radio has stopped scanning.
Roaming
Your radio is in roaming mode.
Your radio has stopped roaming.
Transmit power
The transmit power of current
channel is low-power mode.
The transmit power of current
channel is high-power mode.
Battery The more battery bars, the more
battery power.
Speaker The speaker is on.

3
To power on your radio, rotate the Power/Volume rotary knob clockwise until a click is heard.
To power off your radio, rotate the Power/Volume rotary knob counterclockwise until a
click is heard.
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3. ('9/)56+8':/549
3.1 Power On/Off Your Radio
After powering on your radio, rotating the Power/Volume rotary knob clockwise can turn
up the volume, and rotating the Power/ Volume rotary knob counterclockwise can turn
down the volume.
3.2 Turn Up/down the Volume
You can add channels in one zone to manage the channels efficiently. Your radio
supports up to 32 zones. Each zone contains up to 32 channels.
You can enter the Zone menu after powering on the radio, press Up/Down key to
choose your zone, and press OK key to switch to your zone.
3.3
Select a Zone
In standby, you can rotate the Channel selection rotary knob and switch the current
working channel. Rotating clockwise can turn down the channel, and rotating
counterclockwise can turn up the channel.
3.4
Select a Channel
If the keypad is unnecessary temporarily, you can lock the keypad to prevent
misoperations. You can lock or unlock the keypad through one of the following ways:
• Key combination
Press the OK+* key combination. The keypad can be locked or unlocked.
• Programmable key
If your distributor sets a Keypad Lock shortcut key, you can press the shortcut key to lock or
unlock the keypad.
• Menu
Enter the main menu, select Setting > Radio Setting >Keypad Lock, and select Disable or a
time option. After you select a time option, if you perform no operation within the specified
period, the keypad is locked automatically. If you select Disable, the keypad will not be
locked automatically. You can press the key combination or the Keypad Lock shortcut key
to lock or unlock the keypad.
NOTE:
If there is no Keypad Lock in the Radio Setting menu, you can ask your distributor to set the
automatic keypad lock function.
3.5 Lock/Unlock the Keypad
Indic a tor Ra dio Stat us
Lit green Your radio is receiving voice signals.
Lit red Your radio is transmitting voice signals.
Flashing orange Your radio is in scanning status.
Lit orange
After a call is established, there is no voice transmitted or
received in the service channel. You can press PTT key
to speak.

4.1 Private Call
4.1.1
Initiate a private call
4.1.2 Answer a private call
4
You can initiate a private call through one of the following ways.
• Initiate the call through Contacts or Call Logs
1. Press the OK/Menu key to enter the home menu.
2. Select Contacts > Contact List, or select call logs to enter the Outgoing/Incom-
ing/Missed call list.
3. Press the Up or Down key to select the contact that you want to call.
4. Press the PTT key to initiate the private call.
• Dial the number that you want to call
1. On the home screen, enter the private number that you want to call.
2. Press the PPT key to initiate the call.
• Initiate a call in Missed calls
In the Missed calls menu, select a missed call, and press the PTT key to initiate the call.
4.2
Group Call
4.2.1
Initiate a group call
You can initiate a group call through one of the following ways:
•Initiate a group call to a preset group contact
In standby, press the PTT key to initiate a group call to the group contact preset for the
current channel.
•Initiate a group call via the group call contact
1.On the home screen, press the OK/Menu key to enter the main menu.
2.Select Contact > Contact List, or select call logs to enter the Outgoing/Incoming call
list.
2. Press the Up or Down key to select the group contact that you want to call.
4. Press the PTT key to initiate the group call.
• Dial the number that you want to call
1. On the home screen, enter the group call number that you want to call.
2. Press the PTT key to initiate the group call.
If your local distributor sets a programmable key for a one touch call, you can initiate a
group call via the programmable key.
4.2.2 Answer a call
After receiving a group call, it is not required to press Call/Answer key, your radio shall
establish the call automatically. After the call is established successful, your radio plays a
reminding tone.
After receiving a private call, it is not required to press Call/Answer key, your radio shall
establish the call automatically. After the call is established successful, your radio plays a
reminding tone. If the call is not answered, the icon is displayed on the LCD to notify you
the missed call.
To ensure that the called party can hear you clearly, keep the microphone 2.5 cm to 5
cm away from your mouth when speak.
4. Ca ll

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4.2.3
Late Entry
After the group call is established, it is allowed that the member, which has not joined
the group call, to be connected to the group call again during call communication.
If you use unlicensed third party software to upgrade the radio firmware and system,
there may be security risks that the radio gets unavailable or your personal information
gets revealed.
Please use online upgrade or download the official software which matches your radio
model to do upgrade.
After your radio upgrade, all your personal information may be removed, please backup
personal information before upgrade.
5. The T hird Pa rty Applic a t ion N otic e
Please read all warnings carefully before using the radio:
Do not use the radio equipment for different uses other than those indicated in this
Guide.
For the correct use of the radio read what is listed in the relative User Guide firstly.
Protect the radio from spray of water and/or other liquids and from dust.
Do not bring the radio close to heat sources.
Do not place the portable radio above the airbags or in their area of action. If the airbag
is activated, it may not swell correctly and/or hurl the portable unit with great force,
inside the compartment where are located the passengers.
Protecting the external antenna connector with proper cover when it isn’t used in
normal operative conditions.
It is advisable to cover the connector when it isn’t used in normal operative conditions.
Replace the batteries with equivalent, which are approved by the manufacture.
Replace the batteries following the instructions given in the technical manual.
Make sure that batteries aren’t damaged and don’t have liquid leaks or evident
gaseous emissions.
Do not use the radio if the battery is damaged.
7. The T hird Pa rty Applic a t ion N otic e
6. MAI N T ECH N I CAL SPECI FICATION S
Frequency Bands UHF1: 400-470MHz
Max. Power Output Low power mode:1W
High power mode: 4W(UHF1)
FM Modulation 12.5KHz: 11K0F3E
4FSK Digital Modulation(Data Only) 12.5KHz: 7K60F1D
4FSK Digital Modulation(Voice Only) 12.5KHz: 7K60F1E
4FSK Digital Modulation(Voice and Data) 12.5KHz: 7K60F1W
Sensitivity(Analog) 0.20uV(12dB SINAD)
Sensitivity(Digital) 0.20uV (5% BER)

6
Put the battery charger far from heat resources and in such a way as to guarantee its
correct aeration as well as safe accessibility to the network power supply outlet. Do not
use the battery charger outside of the environments for which it was specified (eg.
external environment).
Use only battery chargers recommended by the manufacture and follow the instructions
described in the user manual to recharge the battery.
Do not use the radio if the antenna is damaged.
Turn off the radio or inhibit transmission, if the equipment allows it, in the electromag-
netically sensitive environments (ex. hospitals, airports, etc.).
The electronic devices are sensitive to electromagnetic interference (EMI) if not
adequately shielded, designed or configured differently for electromagnetic fields
immunity. If electromedical equipment (ex. pace-makers, acoustical equipment, etc.) is
used together with the portable radio, make sure that it is adequately shielded from
external electromagnetic fields.
Carry out the maintenance operations on the portable radio following the instructions
given in the technical manual.
Follow all accident prevention standards when carrying out maintenance operations on
the portable radio equipment and use the proper tools (spanners, screwdrivers, etc.).
First and second level maintenance operations on the equipment are to be carried out
by authorized technicians only.
Third maintenance level operations are to be carried out by CALTTA technicians only.
Use only original accessories and spare parts, approved by the manufacturer, suitable
for the radio. The use of different accessories and/or spare parts (earphone,
antenna,etc.) makes the safety and electromagnetic compatibility certifications to be
valid no more and it could lower the user safety level and/or generate electromagnetic
fields that exceed the accepted limits.
Follow the battery charger instructions in order to use it correctly.
During voice calls, the radio use with its proper bag is not recommended in
environments which temperature can be over 45°C.
The emergency call is a priority type call. The portable radio, like all mobile telephony
equipment, operates with radio frequency signals, therefore, the forwarding of the call
depends on the network coverage during the call.
If you need send an emergency call, keep pressing the emergency button for at least 2
seconds, when the radio is switched on.
Do not cause short circuits between the battery terminals. Do not set the batteries on
metal surfaces. Do not set metal tools on the battery terminals. Be careful when
handling any battery, when placing it in a pocket, purse/bag or any other.
Do not use the battery charger if the power supply cable and/or the plug are damaged.
If the battery is incorrectly replaced existing the dangerous risk of explosion.
Even if the battery is discharge, the risk of explosion exists if the battery is disposed on fire.
Do not take the radio into environments that have a potentially explosive atmosphere
(ex. fuel storage sites, filling stations,etc.). Even when it is off, the radio, being equipped
with battery, might casually generate sparks that could trigger fires and/or explosions.
Do not use the battery charger in environments that have a potentially explosive
atmosphere (ex. fuel storage sites, filling stations,etc.). The use of battery charger
might generate sparks that could trigger fires and/or explosions.

7
CALTTA two-way radio is designed and tested to comply with a number of national and
international standards and guidelines for human exposure to radio frequency
electromagnetic energy.
This radio complies with the IEEE (FCC) and ICNIRP exposure limits for occupational/-
controlled RF exposure environments at operating duty factors of up to 50% talk-50%
listen and is authorized by the IEE/ICNIRP for occupational use only.
Control Guidelines:
User awareness instructions should accompany device when transferred to
other users.
Do not use this device if the operational requirements described herein are not met.
Operating Instructions:
Transmit no more than the rated duty factor of 50% of the time. To receive calls,
release PTT button. Transmitting 50% of the time, or less, is important because this
radio generates measurable RF energy exposure only when transmitting(in terms of
measuring for standards compliance).
Hold the radio in vertical position in front of the face with the microphone (and other
parts of the radio including the antenna) at least 2.5 cm (1 inch) away from the nose or
lips. Antenna should be kept away from the eye. Keeping the radio at a proper distance
is important since RF exposures decrease as the distance from antenna increases.
8. COMPLIAN CE WI T H RF EX POSURE STAN DARDS
This equipment has been tested and found to comply with the limits for a Class B digital
device,pursuant to part 15 of FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions , may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. lf this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct. The interference by one or more of the following
measures:
9. FCC ST ATEM ENT
In order to further increase the level of user safety, you have to observe the following
precautions:
The radio is equipped with an automatic system to control the power transmitted so that
the radio transmits at the maximum power only in exceptional cases (radio coverage
limit, emergency call). Avoid touching the antenna when the radio is on and especially
during transmission because the ability of transmitting power gets worse.
During voice communications in earphone mode hold the portable radio with the
antenna straight and above your shoulder and speak directly into the microphone.
Hold the portable radio in the vertical position and always at least 2.5 cm away from
your head during voice communications in loudspeaker mode.

8
Reorient or relocate the receiving antenna. lncrease the separation between the
equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced radio/TV technician for help. Operation is subject
to the following two conditions:
1.This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may
cause undesired operation.
Note: Any Changes or modifications to this unit not expressly approved by the party
responsible for compliance could void the user‘s authority to operate the equipment.
CALTTA TECHNOLOGIES CO., LTD.
Address:12F,Building G2, International E-City,Nanshan,Shenzhen,China,518052
Tel: [phone]
Website: www.caltta.com
Privacy statement: CALTTA TECHNOLOGIES CO., LTD. is a leading provider of
comprehensive critical communication solutions, the company is committed to
protecting personal data by the use of appropriate technical and organizational
measures.