FCC ID: 2AQV7PH6X0UHF Digital Portable Radio

PH690 UHF Quick Start Guide Digital Portable Radio LEGAL INFORMATION Copyright CALTTA TECHNOLOGIES CO., LTD. 2019 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 micro-film, 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. GET TO KNOW YOUR RADIO Components NOTE:

Before using the radio, read all the instructions contained in the manual and, with special care, those relative to safety. COMPONENT DESCRIPTIONS No. Name No. Name PTT key Side key 1 Side key 2 LED indicator 1 2 3 4 5 6 7 8 9 Power /Volume rotary knob LCD OK/Menu key Call/Answer key 10 Speaker 13 14 15 16 17 18 19 20 21 22 1 Top key Antenna Microphone Up key Hook key Down key

# Key Battery button Accessory interface Channel selection rotary knob Back/Group call management key 1 2 3 4 5 6 7 8 9 11 12 No. Name Digit keypad

* Key No. 23 Name Battery 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 Non-function Do not assign function Keypad lock Lock or unlock keypad immediately. Power level Adjust transmit power level quickly. Call logs Open the Call Logs menu directly. Contact list Open the contact list menu directly. Message Open the message menu directly. Channel up/down adjust Switch channel through button Hunt Squelch Enable or disable Hunt function Enable or disable squelch function 10 Roaming Enable or disable roaming function NOTE:

The functions of a programmable key may vary with the operation (press or press and hold). For details, contact the local distributor. SYMBOLS DISPLAY The following icons may be displayed on the LCD. Name Signal strength Status No signal Icon Message The more the signal bars are, the stronger the signal is. Message unread. The message box is full. 2 Name Hunt Roaming Transmitted power Battery level Icon Status Your radio is in Hunt status. Your radio is in roaming status. The current channel transmits signals in low power. The current channel transmits signals in high power. The longer the battery bar is, the higher the battery level is. Speaker The speaker is on. LED INDICATOR The LED indicator indicates the operating status of the radio. Indicator Status Lit green Your radio is receiving voice signals. Lit red Your radio is transmitting voice signals. Flashing orange Your radio is in Hunt 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. BASIC OPERATIONS Power On/Off Your Radio 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. Turn Up/down the Volume 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. Select a Zone You can add channels in one zone to manage the channels efficiently. Your radio supports up to 64 zones. One zone contains up to 32 channels. After powering on your radio, press the OK/Menu key and enter the zone menu,-press the Up or Down key to select the required zone, then press OK/Menu key to switch to the selected zone. 3 Select a Channel When the home screen is displayed, 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. Lock/Unlock Keypad If the keypad is unnecessary temporary, you can lock the keypad to prevent misop-erations. You can lock or unlock the keypad through one of the following ways:

Press OK/Menu key +* 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 Key combination Programmable key or unlock the keypad. Menu Enter the main menu, select Setting > Radio Setting > Keypad Lock, and select a time option or Disable. If you select a time option and there is no operation within the specified period, the keypad will be locked automatically. If you select Disable, the keypad will not be locked automatically. In such cases you still can press the key combination or Keypad Lock shortcut key to lock or unlock the keypad. If there is no Keypad Lock in the Radio Setting menu, you can ask your distributor to set the automatic keypad lock function. NOTE:

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. You can initiate a private call through one of the following ways. Private Call Initiate a private call Initiate the call through Contacts or Call Logs Press OK/Menu key to enter the home menu. Select Contacts > Private Contacts or select Call Logs to display Outgoing calls, Press Up or Down key to select the contact that you want to call. Incoming calls or Missed calls. Press PTT key to initiate the private call. Press PTT key to initiate the private call. Dial the number that you want to call Initiate a call in Missed calls Answer a private call In the Missed calls menu, select a missed call and press PTT key to initiate the call. After receiving a private call, it is not required to press Call/Answer key, your radio 4 When the home screen is displayed, enter the private number that you want to call. shall establish the call automatically. After the call is successful, your radio plays a reminding tone. If the call is not answered, the missed icon is displayed on the LCD to notify you that you missed a call. A private call can be ended by the calling or called party. NOTE:

Group Call Initiate a group call to a preset group contact Initiate a group call You can initiate a group call through one of the following ways:

When the home screen is displayed, press the PTT key to initiate a group call to the group contact preset for the channel selection rotary knob. Through the address book in groups When the home screen is displayed, press the OK/Menu key and enter the home menu. Select Contacts > Group Contact, or select Call Logs to display Outgoing calls, Press Up or Down key to select the Group Contact that you want to call. Incoming calls. Press PTT key to initiate a group call. Dial the number that you want to call When the home screen is displayed, enter the group call number that you want to call. Press PTT key to initiate the group call. 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 successful, your radio plays a reminding tone. If the call is not answered, the missed icon is displayed on the LCD to notify you that you missed a call. Late Entry Frequency Bands Max. Power Output FM Modulation 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 communi-cation. MAIN TECHNICAL SPECIFICATIONS UHF1: 400-470MHz Bluetooth/BLE: 2402-2480MHz Low power mode : 1W High power mode : 4W(UHF1) / 5W(VHF) 12.5KHz:11K0F3E / 20KHz: 14K0F3E / 25KHz:

16K0F3E 5 4FSK Digital Modulation(Data Only) 12.5KHz: 7K60F1D&7K60FXD 4FSK Digital Modulation(Voice Only) 12.5KHz: 7K60F1E&7K60FXE 4FSK Digital Modulation(Voice and 12.5KHz:

7K60F1W Data) Sensitivity(Analog) 0.22uV(12dB SINAD) Sensitivity(Digital) SOFTWARE RELEASE This radio is configured to work with the main software version 3.x or 4.x.(x means 0.22uV (5% BER) 0,1,2,3,...9 Arabic numerals). This equipment is marked According to the requirements specified in the Radio Equipment 2014/53/EU Directive, the radio equipment PH690 UHF series is Class 2 and can be used in any European Union countries subject to authorization by the competent Authority for the type of service in each country. This device can be used in any country not belonging to the European Union that has approved its use. ENGLISH-EN CALTTA declares that the radio equipment type PH690 UHF is in compliance with Direc-

tive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: http://www.caltta.com/en/download.aspx SPANISH-ES Por la presente, CALTTA declara que el tipo de equipo radioelctrico PH690 UHF es conforme con la Directiva 2014/53/UE. El texto completo de la declaracin UE de conformidad est disponible en la direccin Internet siguiente: http://www.caltta. com/en/download.aspx ITALIAN-IT CALTTA, dichiara che il tipo di apparato radio PH690 UHF, conforme alla direttiva 2014/53/UE. Il testo completo della dichiarazione di conformit UE disponibile al seguente indirizzo Internet: http://www.caltta.com/en/download.aspx GERMAN-DE Hiermit erklrt CALTTA, dass der Funkanlagentyp PH690 UHF der Richtlinie 2014/53/

EU entspricht. Der vollstndige Text der EU-Konformittserklrung ist unter der folgenden Internetadresse verfgbar: http://www.caltta.com/en/download.aspx FRENCH-FR Le soussign, CALTTA, dclare que lquipement radiolectrique du type PH690 UHF est conforme la directive 2014/53/UE. Le texte complet de la dclaration UE de conformit est disponible ladresse internet suivante: http://www.caltta.com/en/

download.aspx DUTCH-NL Hierbij verklaar ik, CALTTA, dat het type radio apparatuur PH690 UHF conform is met Richtlijn 2014/53/EU. De volledige tekst van de EU-conformiteitsverklaring kan worden geraadpleegd op het volgende internetadres: http://www.caltta.com/en/ download.aspx BULGARIAN-BG CALTTA , PH690 UHF, conforme alla direttiva 2014/53/UE. Il testo completo della dichiarazione di conformit UE disponibile al seguente indirizzo Internet: http://www.caltta.com/en/download.aspx CZECH-CS Tmto CALTTA prohlauje, e typ rdiovho zazen PH690 UHF je v souladu se smrnic 2014/53/EU. pln znn EU prohlen o shod je k dispozici na tto internetov adrese: http://www.caltta.com/en/download.aspx CROATIAN-HR CALTTA ovime izjavljuje da je radijska oprema tipa PH690 UHF u skladu s Direktivom 2014/53/EU. Cjeloviti tekst EU izjave o sukladnosti dostupan je na sljedeoj inter-netskoj adresi: http://www.caltta.com/en/download.aspx DANISH-DA Hermed erklrer CALTTA, at radioudstyrstypen PH690 UHF er i overensstemmelse med direktiv 2014/53/EU. EU-overensstemmelseserklringens fulde tekst kan findes p flgende internetadresse: http://www.caltta.com/en/download.aspx ESTONIAN-ET Kesolevaga deklareerib CALTTA, et kesolev raadioseadme tp PH690 vastab direktiivi 2014/53/EL nuetele. ELi vastavusdeklaratsiooni tielik tekst on kttesaa-dav jrgmisel internetiaadressil: http://www.caltta.com/en/download.aspx FINNISH-FI CALTTA vakuuttaa, ett radiolaitetyyppi PH690 on direktiivin 2014/53/EU muka-inen. EU-vaatimustenmukaisuusvakuutuksen tysimittainen teksti on saatavilla seuraavassa internetosoitteessa: http://www.caltta.com/en/download.aspx GREEK-EL

/ CALTTA, PH690 UHF 2014/53/.

: http://www.caltta.com/en/download.aspx HUNGARIAN-HU CALTTA igazolja, hogy a PH690 UHF tpus rdiberendezs megfelel a 2014/53/EU irnyelvnek. Az EU-megfelelsgi nyilatkozat teljes szvege elrhet a kvetkez 7 internetes cmen: http://www.caltta.com/en/download.aspx LATVIAN-LV Ar o CALTTA deklar, ka radioiekrta PH690 UHF atbilst Direktvai 2014/53/ES. Pilns ES atbilstbas deklarcijas teksts ir pieejams d interneta vietn: http://www. caltta.com/en/download.aspx LITHUANIAN-LT A, CALTTA, patvirtinu, kad radijo rengini tipas PH690 UHF atitinka Direktyv 2014/53/

ES. Visas ES atitikties deklaracijos tekstas prieinamas iuo interneto adresu: http://

www.caltta.com/en/download.aspx MALTESE-MT Bdan, CALTTA, niddikjara li dan it-tip ta tagmir tar-radju PH690 UHF huwa konformi mad-Direttiva 2014/53/UE. It-test kollu tad-dikjarazzjoni ta konformit tal-UE huwa disponibbli fdan l-indirizz tal-Internet li ej: http://www.caltta.com/en/download.aspx POLISH-PL CALTTA niniejszym owiadcza, e typ urzdzenia radiowego PH690 UHF jest zgodny z dyrektyw 2014/53/UE. Peny tekst deklaracji zgodnoci UE jest dostpny pod nastpujcym adresem internetowym: http://www.caltta.com/en/download.aspx PORTUGUESE-PT O(a) abaixo assinado(a) CALTTA declara que o presente tipo de equipamento de rdio PH690 UHF est em conformidade com a Diretiva 2014/53/UE. O texto integral da declarao de conformidade est disponvel no seguinte endereo de Internet:

http://www.caltta.com/en/download.aspx ROMANIAN-RO O(a) abaixo assinado(a) CALTTA declara que o presente tipo de equipamento de rdio PH690 UHF est em conformidade com a Diretiva 2014/53/UE. O texto integral da declarao de conformidade est disponvel no seguinte endereo de Internet:

http://www.caltta.com/en/download.aspx SLOVAK-SK CALTTA tmto vyhlasuje, e rdiov zariadenie typu PH690 UHF je v slade so smerni-

cou 2014/53/E. pln E vyhlsenie o zhode je k dispozcii na tejto internetovej adrese:

http://www.caltta.com/en/download.aspx SLOVENIAN-SL CALTTA potrjuje, da je tip radijske opreme PH690 UHF skladen z Direktivo 2014/53/

EU. Celotno besedilo izjave EU o skladnosti je na voljo na naslednjem spletnem naslovu: http://www.caltta.com/en/download.aspx SWEDISH-SV Hrmed frskrar CALTTA att denna typ av radioutrustning PH690 UHF verensstmmer med direktiv 2014/53/EU. Den fullstndiga texten till EU-frskran om verensstm-melse finns p fljande webbadress: http://www.caltta.com/en/download.aspx 8 SAFETY INFORMATION Do not use the radio equipment for different uses other than those indicated in this Guide. Please read all warnings carefully before using the radio:

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 condi-tions. Replace the batteries with equivalent, which are approved by the manufacture. Replace the batteries following the instructions given in the technical manual. Make gaseous emissions. sure that batteries arent damaged and dont have liquid leaks or evident Do not use the radio if the battery is damaged. 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 speci-fied (eg. external environment). Use only battery chargers recommended by the manufacture and follow the instruc-tions 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 electro-

magnetically 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 shield-ed from external electromagnetic fields. Carry out the maintenance interventions on the portable radio following the instruc-tions given in the technical manual. Follow all accident prevention standards when carrying out maintenance interven-tions on the portable radio equipment and use the proper tools (spanners, screw-

9 drivers, etc.). First and second maintenance level interventions on the equipment are to be car-ried out by authorized technicians only. Third maintenance level interventions are to be carried out by CALTTA technicians only. Use only original accessories and spare parts, approved by the manufacturer, suit-able for the PH690. 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 electromag-netic fields that exceed the accepted limits. Follow the battery charger instructions in order to use it correctly. During voice calls, the PH690 use with its proper bag is not recommended in envi-

ronments which temperature can be over 45C. The emergency call is a priority type call. The portable radio, like all mobile telepho-ny 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 ant 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 dam-aged. 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 atmo-sphere(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. In order to further increase the level of user safety, you have to observe the follow-ing precautions:

The PH690 radio is equipped with an automatic system to control the power trans-mitted 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 10 your head during voice communications in loudspeaker mode. 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 occupa-

tional/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. 11 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 instal-lation. 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 interfer-ence 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:

Reorient or relocate the receiving antenna. lncrease the separation between the Connect the equipment into an outlet on a circuit different from that to which the equipment and receiver. receiver is connected. the following two conditions:

Consult the dealer or an experienced radio/TV technician for help. Operation is sub-ject to 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. 12 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 compre-hensive critical communication solutions, the company is committed to protecting personal data by the use of appropriate technical and organizational measures.

Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS220519-21600E-RF FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925) LABEL AND LOCATION Page 1 of 1

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: 2022-06-27 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2AQV7PH6X0UHF 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:

Block Diagram Schematics Operation Description Parts List /Turn up procedure(for licensed devices) 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. 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 Authorization Date: 2022-06-27 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 Shenzhen Accurate Technology Co., Ltd. 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 Shenzhen Accurate Technology Co., Ltd. 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 Product Similarity Declaration Date: 2022-07-13 To:

Bay Area Compliance Laboratories Corp. 1274 Anvilwood Avenue Sunnyvale, CA 94089 Dear Sir/Madam, We,CALTTA TECHNOLOGIES CO.,LTD. hereby declare that we have a product named as Digital Portable Radio, (model: PH690 UHFFCC ID2AQV7PH6X0UHF) were tested by Shenzhen Accurate Technology Co., Ltd., Meanwhile, for our marketing purpose, we would like to list series model (PH660 UHF,PH600 UHF,PH690 U(1),PH660 U(1),PH600 U(1)) on reports and certificate. The difference among them is just the model name PH690 UHF, PH690U(1) with large screen and large keyboard,PH660 UHF,PH660 U(1) with small screen and small keyboard,PH600 UHF, PH600 U(1) without screen and keyboard, they all have the same motherboard,They both come with two batteries, which are just different in capacity,No other changes were made to them. 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 Date: 2022-06-27 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: PH690 UHF FCC ID: 2AQV7PH6X0UHF Dear Sir or Madam We, CALTTA TECHNOLOGIES CO., LTD.declare that the time division multiple access (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 kHzchannel, 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 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: 2022-06-27 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: 2AQV7PH6X0UHF was designed to operate in the frequency bands 400~470 MHz To aid equipment authorization in other countries which accept the United States FCC Grant for Certification, CALTTA TECHNOLOGIES CO., LTD.is requesting that the FCC lists the frequencies 430~470 MHz, under FCC Rule Part 90 on the FCC Grant. CALTTA TECHNOLOGIES CO., LTD.attests that the radio will not be marketed to USA users with the frequency band 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. 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 Yours, Signature:

Contact person: Chris Lau Title: Certified engineer