FCC ID: 2AQV7DH5X0UHF Digital Portable Radio

DH590 Digital Portable Radio Quick Start Guide LEGAL INFORMATION 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. 1. GET TO KNOW YOUR RADIO 1.1 Components No. Item Name No. Item Name PTT key Side key 1 Side key 2 Top key Antenna

Microphone LED indicator Up key Channel selection rotary knob Power /Volume rotary knob

LCD OK/Menu key Call/Answer key

Digit keypad Speaker Back/Group call management key Hook key Down key Battery button Accessory interface Battery

1 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 Description 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 2. STATUS INDICATOR 2.1 LCD (Status Symbols) Icon Name Icon Status Description Signal Strength Message Scan Roaming Transmit power Battery Speaker No signal. The more signal bars, the stronger the signal. You have unread message. Message inbox is full. Your radio is in scanning mode. Your radio has stopped scanning. Your radio is in roaming mode. Your radio has stopped roaming. The transmit power of current channel is low-power mode. The transmit power of current channel is high-power mode. The more battery bars, the more battery power. The speaker is on. 2 2.2 Indicator Radio Status 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 received in the service channel. You can press PTT key After a call is established, there is no voice transmitted or to speak. 3. 3.1 Power On/Off Your Radio click is heard. 3.2 Turn Up/down the Volume 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 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. 3.3 Select a Zone 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. 3.4 Select a Channel 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. 3.5 Lock/Unlock the Keypad 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:

Press the OK+* key combination. The keypad can be locked or unlocked. If your distributor sets a Keypad Lock shortcut key, you can press the shortcut key to lock or Key combination Programmable key 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 If there is no Keypad Lock in the Radio Setting menu, you can ask your distributor to set the to lock or unlock the keypad. NOTE:

automatic keypad lock function. 3 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. Call 4.1 Private Call 4.1.1 Initiate a private call 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. 4.1.2 Answer a private call 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. 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. 4 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. 5. The Third Party Application Notice 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. model to do upgrade. Please use online upgrade or download the official software which matches your radio After your radio upgrade, all your personal information may be removed, please backup personal information before upgrade. 6. MAIN TECHNICAL SPECIFICATIONS Frequency Bands Max. Power Output FM Modulation UHF1: 400-470MHz Low power mode:1W High power mode: 4W(UHF1) 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) Sensitivity(Digital) 0.20uV(12dB SINAD) 0.20uV (5% BER) 7. The Third Party Application Notice 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 isnt used in normal operative conditions. It is advisable to cover the connector when it isnt 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 arent damaged and dont have liquid leaks or evident gaseous emissions. Do not use the radio if the battery is damaged. 5 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. given in the technical manual. Carry out the maintenance operations on the portable radio following the instructions 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 45C. 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. 6 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. COMPLIANCE WITH RF EXPOSURE STANDARDS 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. User awareness instructions should accompany device when transferred to Do not use this device if the operational requirements described herein are not met. Control Guidelines:

other users. 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. 9. FCC STATEMENT 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:

7 Reorient or relocate the receiving antenna. lncrease the separation between the equipment and receiver. receiver is connected. Connect the equipment into an outlet on a circuit different from that to which the 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 users authority to operate the equipment. CALTTA TECHNOLOGIES CO., LTD. Address:12F,Building G2, International E-City,Nanshan,Shenzhen,China,518052 Tel: +86-755-26774767 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. 8

Caltta TRC tErG Digital Portable Radio FAL DH590-XXXXXXXXXXXX-XX-X FCC ID: 2AQV7DH5X0UHF SN : 321190650001 . Made in China CALTTA TECHNOLOGIES CO.,LTD. ATTENTION: Restricted to occupational use to satisfy exposure limits. See product documentation for operation requirements

CompanyName:CALTTATECHNOLOGIESCO.,LTD. Add:Floor12,BuildingG2,internationalECityNanshanDistrictShenzhenChina Tel:075526773333 Email:Chris.lau@zte.com.cn Product Similarity Declaration Date: 2022-06-07 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir/Madam, We,CALTTA TECHNOLOGIES CO.,LTD. hereby declare that we have a product named as Digital Portable Radio, (model: DH590 UHF, FCC ID:2AQV7DH5X0UHF) were tested by China Certification ICT Co., Ltd (Dongguan), Meanwhile, for our marketing purpose, we would like to list a series model (DH590 U(1),DH560 UHF,DH560 U(1),DH500 UHF,DH500 U(1)) on reports and certificate. The difference among them is just the model name and DH590 U(1),DH590UHF has screen,DH500 U(1),DH500 UHF does not have screen, DH560 UHF, DH560 U(1) with small screen and buttons,No other changes were made to them. CompanyName:CALTTATECHNOLOGIESCO.,LTD. Add:Floor12,BuildingG2,internationalECityNanshanDistrictShenzhenChina Tel:075526773333 Email:Chris.lau@zte.com.cn We confirm that all information above is true, and well be responsible for all the consequences. Please contact me if you have any question. Sincerely Yours, Signature:

Contact person: Chris Lau Title: Certified engineer

Company Name: CALTTA TECHNOLOGIES CO., LTD. Add: Floor12,Building G2,international E-City Nanshan District Shenzhen China Tel: 0755-26773333 Email: Chris.lau@zte.com.cn FCC Confidential Authorization Date: 2022-05-30 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2AQV7DH5X0UHF In accordance with Sections 0.457 and 0.459 of the Commissions Rules, CALTTA TECHNOLOGIES CO., LTD. hereby requests long-term confidential treatment of information accompanying this application as outlined below:

The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Block Diagram Schematics Operation Description BOM/Tune up procedure Sincerely Yours, Signature:

Contact person: Chris Lau Title: Certified engineer

Company Name: CALTTA TECHNOLOGIES CO., LTD. Add: Floor12,Building G2,international E-City Nanshan District Shenzhen China Tel: 0755-26773333 Email: Chris.lau@zte.com.cn Date: 2022-06-07 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Extended Frequencies Justification Dear Sir/Madam, The Radio with FCC ID:

To aid equipment authorization in other countries which accept the United States FCC Grant for Certification, CALTTA TECHNOLOGIES CO., LTD. 400~470 MHz, under FCC Rule Part 90 on the FCC Grant. CALTTA TECHNOLOGIES CO., LTD. which is not allowed by the rule part 90. Per the FCCs KDB634817 guidance, as an alternative to listing the exact frequencies, we acknowledge that its a violation of the FCC Rules if this device operates on unauthorized frequencies. attests that the radio will not be marketed to USA users with the frequency band was designed to operate in the frequency bands 400~470 MHz is requesting that the FCC lists the frequencies 2AQV7DH5X0UHF Frequency Range (MHz) 400-406 406.1-454 456-460 460-462.5375 462.7375-467.5375 467.7375-470 FCC Rule Part For FEDERAL FCC Part 90 FCC Part 90 FCC Part 90 FCC Part 90 FCC Part 90 Also, equipment programming is the responsibility of Authorized Service Personnel, the radio complies with 47 CFR Part 90.203(e), in that the operator cannot directly program the transmit frequencies using the normally accessible external controls. Sincerely, Signature:

Contact person: Chris Lau Title: Certified engineer

Company Name: CALTTA TECHNOLOGIES CO., LTD. Add: Floor12,Building G2,international E-City Nanshan District Shenzhen China Tel: 0755-26773333 Email: Chris.lau@zte.com.cn FCC Authorization Date: 2022-05-30 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern:

We CALTTA TECHNOLOGIES CO., LTD., the undersigned, hereby authorizes China Certification ICT Co., Ltd (Dongguan)to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by China Certification ICT Co., Ltd (Dongguan) on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, This authorization is valid until further written notice from the applicant. 21 U.S.C. 862. Sincerely Yours, Signature:

Contact person: Chris Lau Title: Certified engineer QA-FR-170-B 7/29/2014

Company Name: CALTTA TECHNOLOGIES CO., LTD. Add: Floor12,Building G2,international E-City Nanshan District Shenzhen China Tel: 0755-26773333 Email: Chris.lau@zte.com.cn Date: 2022-06-07 To:

FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Attestation statement regarding the Digital Portable Radio spectrum efficiency TYPE OF EQUIPMENT: Digital Portable Radio Model number: DH590 UHF FCC ID: 2AQV7DH5X0UHF Dear Sir or Madam CALTTA TECHNOLOGIES CO., LTD. declare that the time division multiple access We,

(TDMA) technology provides two paths in a 12.5 kHz channel bandwidth, thus meeting the one voice path per 6.25 kHz of spectrum requirement. This radio also provides data rate of 9600 bps in a 12.5 kHz channel, thus meeting the minimum data rate of 4800 bps in a 6.25 kHz channel. Please contact the undersigned if you have any questions or need any further information. Sincerely, Signature:

Contact person: Chris Lau Title: Certified engineer