FCC ID: YAMHP78XVHF Digital Portable Radio

Product Overview Product Layout Part Name No. 1 Side Key 1 (SK1) 2 Push-to-Talk (PTT) Key 3 Side Key 2 (SK2) 4 Top Key (TK) 5 Smart Knob 6 LCD Display 7 OK/Menu Key 8 P1/Answer Key 9 Numeric Keypad 10 Speaker 11 LED Indicator 12 Antenna Part Name No. 13 Microphone 14 Back/Subgroup Key 15 On-Off/P2/End Key 16 Navigation Keys 17 Battery Latch 18 Strap Hole 1 19 Strap Hole 2 20 Accessory Connector 21 Belt Clip 22 Battery 23 Charging Piece

Programmable Keys For enhanced convenience, you can request your dealer to program the following keys as shortcuts to radio features: TK, SK1, SK2, P1/Answer key, P2/End key, Up key, and Down key. Consult your dealer for assignable radio features. 1 Basic Operations Charging the Battery Read the Safety Information Booklet before charging. Use the approved charger to charge the battery. The remaining lithium-ion battery power is limited to 30% pursuant to the new lithium battery shipment regulation approved by International Air Transport Association

(IATA). Before initial use, charge the battery. You can charge either the standalone battery or the radio with battery attached. It is recommended that the radio remain powered off during charging. The LED indicator on the charger shows the charging status. For details, see the following table. LED Indicator Charging Status Glows green Flashes red slowly or above. The battery is fully charged. No battery is placed on the charger. Flashes red rapidly The battery fails to be charged. Turning the Radio On or Off

. To turn the radio on or off, press and hold Adjusting the Volume To increase or decrease the volume, rotate the Smart knob clockwise or counter-clockwise. Selecting the Contact or Channel To select the contact or channel, press the Smart knob, and then rotate the knob. LED Indicator Charging Status Glows red Glows orange The battery is being charged. The battery is charged to 90%

If you do not rotate the knob within 5s or if you press it again within 5s, you can rotate it to adjust the volume. 2 Locking or Unlocking the Keypad When the keypad is not in use, it is recommended that you lock it to avoid unintended operations. To allow the keypad to be locked automatically, do as follows:

1. Go to Menu > Settings > Basic Settings >

Keypad Lock. 2. Enable AutoLock, and then go to Timed to set the auto lock time. If you do not operate the radio or if the radio receives no call or message within the auto lock time, the keypad is locked automatically. To manually lock or unlock the keypad, do one of the following:

Press the preprogrammed Keypad Lock key. On the home screen, press the OK/Menu key, and then press

. If the Keypad Lock Backup feature is enabled by your dealer, the radio automatically saves the last settings of keypad lock upon power-off. You can go to Menu > Settings > Basic Settings > Keypad Lock > Optional Key to set whether the corresponding keys and knobs still work when the keypad is locked. Using the Keypad You can use the keypad to enter contact aliases and IDs, or edit messages. To switch the input method between alphabetic mode and numeric mode, press

. To enter special characters, press in alphabetic mode. To enter a space, press in alphabetic mode. Switching the Operation Mode The radio can operate in conventional mode, or trunking mode if enabled by your dealer. To switch the operation mode, do one of the following:

Press the preprogrammed Operation Mode Press the preprogrammed Zone Up or Zone Switch key. Down key. Go to Menu > Mode, and then select the mode. If the Zone/Subgroup Switch Mode feature is enabled, you can switch the operation mode by switching the contact through the menu or the Smart knob. To allow the radio to automatically switch to a mode based on signal strength, do one of the following:

Press the preprogrammed Mode Auto Switch key. Go to Menu > Mode, and then enable Auto Switch. Conventional Mode In conventional mode, a zone is a group of channels within the same operational area. The radio receives and transmits data and voice on the selected channel. Selecting a Zone To select a zone, do one of the following:

Go to Menu > Zone, select the zone, and then select Set Default. Selecting a Channel Before selecting a channel, make sure that the current zone contains the channel. To select a channel, do one of the following:

Press and rotate the Smart knob. Go to Menu > Zone, select the zone, and then select the channel. Press the preprogrammed Channel Up or Channel Down key. Press the preprogrammed Preset Channel key. If the Voice Notify feature is enabled, the radio automatically announces the current channel upon power-on and channel change. Trunking Mode In trunking mode, the radio hunts for available base stations (BS) automatically. After registration, the radio can receive and transmit data and voice. Selecting a Group or Private Contact To select a group contact or a private contact, do one of the following:

3 Press and rotate the Smart knob. On the home screen, press the Back/Subgroup key or go to Menu > Subgroup, select the subgroup, and then select the group or private contact. Press the preprogrammed Group/Private Up or Group/Private Down key. Selecting a Subgroup A subgroup consists of multiple groups or private contacts. To select a subgroup, do one of the following:

On the home screen, press the Back/Subgroup key or go to Menu > Subgroup, select the subgroup, and then select Set Default. Press the preprogrammed Subgroup Up or Subgroup Down key. Status Indications LCD Icons Icon Radio Status The fuller the battery bar is, the stronger the battery power remains. Icon Radio Status The battery power is low. The battery power runs out. Recharge or replace the battery. The radio detects no signal. The number of bars indicates the signal strength. The radio operates in Low Power mode. The radio operates in High Power mode. The keypad is locked. An accessory is connected. The Mode Auto Switch feature is enabled. The radio is scanning or hunting. The VOX feature is enabled. The radio is mute. The radio operates in Meeting mode. The radio operates in Outdoor mode. The radio is in Emergency mode. 4 Icon Radio Status There is/are missed call(s). There is/are unread short message(s). The Inbox is full. For details on other LCD icons, refer to the User Manual. LED Indications LED Indicator Radio Status Flashes green Flashes green slowly Glows green Glows red Flashes red Flashes orange slowly Flashes orange The radio is being turned on. The radio is standby in trunking mode. The radio is receiving. The radio is transmitting. The radio is establishing a call in trunking mode. (This indication is applicable only to the calling radio.) The radio is scanning, hunting, or roaming. Conventional mode: The LED Indicator rapidly Glows orange Flashes blue every 3 seconds Flashes blue every 1.5 seconds Flashes blue every 0.1 second Radio Status radio is working in emergency mode. Trunking mode: The called radio is establishing a Full Off Air Call Set-Up

(FOACSU) call. Call hang time: No voice is being transmitted or received on the channel during a call. Within such a period, you can press and hold the PTT key and speak. The BT feature is enabled, but no BT device is connected. A BT device is connected. The BT feature is being disabled. Call Services When you are speaking during a call, keep the microphone about 2.5 cm to 5 cm away from your mouth. This ensures optimal voice quality on the receiving radio. In trunking mode, if the radio is not registered or attached, or an empty group is selected, you cannot initiate a call. Call on Digital Channel You can initiate or receive the following types of calls on a digital channel:

Group call: a call from an individual user in a group to all the other members in the group. Private call: a call from an individual user to another individual user. Initiating a Group Call Through Preset Contact Press and rotate the Smart knob to select the channel or group contact, and then press and hold the PTT key. Through Contact List Conventional mode: Go to Menu > Contact >

Favorite/Contact, select the group contact, and then press and hold the PTT key. Trunking mode: Go to Menu > Subgroup, select the subgroup and group contact, and then press or the PTT key. Through Manual Dial Conventional mode: With the dial authority for group call enabled, on the home screen, use the numeric keypad to enter the group ID, and then press and hold the PTT key. Trunking mode: On the home screen, use the numeric keypad to enter the group ID, and then press or the PTT key. To input an ID that complies with the dialing rules, consult your dealer for details. Receiving a Group Call You can receive a group call without any operation. 5 Ending a Group Call Conventional Mode A group call ends when the call hang time expires. Trunking Mode A group call ends in one of the following scenarios:

The call hang time expires. The calling party ends the call. The call duration exceeds the preset time. The BS signal is lost. A preemptive or emergency call interrupts the call. The calling party changes the contact with the Clear Down Via Group Switch feature enabled. Initiating a Private Call Through Preset Contact Press and rotate the Smart knob to select the channel or private contact, and then press and hold the PTT key. Through Contact List Go to Menu > Contact > Favorite /Contact , select the private contact, and then press and hold the PTT key. Through Manual Dial Conventional mode: With the dial authority for private call enabled, use the numeric keypad to enter the private ID, and then press and hold the PTT key. Trunking mode: On the home screen, use the numeric keypad to enter the private ID, and then press or the PTT key. To input an ID that complies with the dialing rules, consult your dealer for details. Receiving a Private Call Conventional Mode You can receive a private call without any operation. Trunking Mode FOACSU When receiving a FOACSU private call, the radio vibrates and rings. Press or the PTT key within the preset time to answer the call. OACSU When receiving an Off Air Call Set- Up

(OACSU) private call, you can answer it without any operation. The call is established automatically. Ending a Private Call Conventional Mode A private call ends when the call hang time expires. Trunking Mode A private call ends in one of the following scenarios:

The call hang time expires. The calling or called party ends the call. The call duration exceeds the preset time. 6 The BS signal is lost. A preemptive or emergency call interrupts the call. The calling or called party changes the contact with the Clear Down Via Private Switch feature enabled. Call on Analog Channel

(Conventional Only) Call without Signaling On an analog channel without signaling, you can initiate a call to all the other users on the channel. Do as follows:

1. Rotate the Smart knob to select the channel. 2. Press and hold the PTT key. Call with Signaling On an analog channel with signaling, you can initiate a call to a specific contact on the channel. Do as follows:

1. Press the preprogrammed Contact List key, or go to Menu > Contact > Favorite/Contact. 2. Select the contact. 3. Press and hold the PTT key or the preprogrammed One Touch Call key. Emergency Call In case of an emergency, you can initiate an emergency call to seek help from your companion or the control centre. With the highest priority, the emergency call can be initiated even when the radio is transmitting or receiving. This feature is configured and enabled by your dealer. For details, refer to the User Manual. Message Services The radio can send and receive short messages. Text message: a message containing text or number. Quick text message: a frequently used text message that can be created, edited, and deleted. Status message (trunking only): a predefined code that transfers the message content. Sending a Message To send a message, do as follows:

1. Go to Menu > Message > Msg New. 2. In the recipient field, enter the contact ID, and then press to switch the contact type. 3. Alternatively, press the OK/Menu key to enter the contact list, and then select the contact. In the message content field, enter the message content. Alternatively, select Insert, and then insert a quick text message or status message. 4. Select Send. Replying to a Message To reply to a message, do as follows:

1. Go to Menu > Message > Msg, and then select the message. 2. Select Reply, and then enter the text content or insert a quick text message or status message. 3. Select Send. Managing a Message Go to Menu > Message > Msg, select a message, press the Up key, and then manage the message as follows:

To forward the message, select Forward, and then add the contact. To resend the message, select Resend. To delete the message, select Delete. To delete all messages, select Delete All. 7 Icon Conventions

: Indicates functions that are available on digital channel only.

: Indicates functions that are available on analog channel only. Functions marked with no icon are available on both analog and digital channels. Disclaimer Hytera Communications Corporation Limited (the Company) endeavors to achieve the accuracy and completeness of this manual, but no warranty of accuracy or reliability is given. All the specifications and designs are subject to change without notice due to continuous technology development. No part of this manual may be copied, modified, translated, or distributed in any manner without the express written permission of us. We do not guarantee, for any particular purpose, the accuracy, validity, timeliness, legitimacy or completeness of the Third Party products and contents involved in this manual. If you have any suggestions or would like to learn more details, please visit our website at: http://www.hytera. com. RF Radiation Information This product must be restricted to operations in an occupational/controlled RF exposure environment. Users must be fully aware of the hazards of the exposure and able to exercise control over their RF exposure to qualify for the higher exposure limits. 5)5DGLDWLRQ3UROH Radio Frequency (RF) is a frequency of electromagnetic radiation in the range at which radio signals are transmitted. RF technology is widely used in communication, medicine, food processing and other HOGV,WPD\JHQHUDWHUDGLDWLRQGXULQJXVH

RF Radiation Safety In order to ensure user health, experts from relevant industries including science, engineering, medicine and health work with international organizations to develop standards for safe exposure to RF radiation. These standards consist of:

United States Federal Communications Commission, Code of Federal Regulations; 47CFR part 2 sub-part J;

American National Standards Institute (ANSI)/

Institute of Electrical and Electronic Engineers (IEEE) C95. 1-1992;

Institute of Electrical and Electronic Engineers (IEEE) C95.1-1999;

International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1998;

FCC Regulations Federal Communication Commission (FCC) requires that all radio communication products should meet the requirements set forth in the above standards before they can be marketed in the U.S, and the manufacturer shall post a RF label on the product to inform users of operational instructions, so as to enhance their occupational health against exposure to RF energy. 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. If not installed and used in accordance with the instructions, it may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. Verification of harmful interference by this equipment to radio or television reception can be determined by turning it off and then on. The user is encouraged to try to correct the interference by one or more of the following measures:

z Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. z Connect the equipment into an outlet on a different circuit to that of the receiver's outlet. z Consult the dealer or an experienced radio/TV technician for help. Operation is subject to the following two conditions:

z This device may not cause harmful interference. z This device must accept any interference received, including interference that may cause undesired operation. Note: 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. RF Exposure Compliance and Control Guidelines and Operating Instructions To control your exposure and ensure compliance with the occupational/controlled environmental exposure limits, always adhere to the following procedures. Guidelines:

Do not remove the RF Exposure Label from the device. 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 transmit (talk), push the Push-To-Talk (PTT) key. To receive calls, release the PTT key. Transmitting 50% of the time, or less, is important because the radio generates measurable RF energy only when transmitting

(in terms of measuring for standards compliance). Keep the radio unit at least 2.5 cm away from the face. Keeping the radio at the proper distance is important as RF exposure decreases with distance from the antenna. The antenna should be kept away from the face and eyes. When worn on the body, always place the radio in a Hytera-approved holder, holster, case, or body harness or by use of the correct clip for this product. Use of non-approved accessories may result in exposure levels which exceed the FCC's occupational/controlled environmental RF exposure limits. Use of non-approved antennas, batteries, and accessories causes the radio to exceed the FCC RF exposure guidelines. Contact your local dealer for the optional accessories of the product. L'exposition aux champs rf de conformit et de contrle d'orientations et instructions la Pour contrler conformit d'exposition professionnelle / environnement contrl, toujours respecter les procdures suivantes. Lignes directrices:

l'exposition et s'assurer de limites avec les Ne pas enlever l'tiquette de l'appareil d'exposition aux radiofrquences. Sensibilisation des utilisateurs instructions devraient accompagner dispositif lorsque transfrs d'autres utilisateurs. Ne pas utiliser cet appareil si les exigences oprationnelles dcrites ci - aprs ne sont pas remplies. Les instructions de fonctionnement:

Transmettre non plus que le facteur d'utilisation nominal de 50% du temps. transmettre (parler), pousse le pousse parler (ptt). Pour recevoir des appels, les ptt.50% du temps de transmission, ou moins, est important parce que la radio gnre de l'nergie rf seulement lors de la transmission des (en termes de mesure de la conformit aux normes). Ie groupe de la radio continue d'au moins 2,5 cm de la surface.garde la bonne distance est important, car l'exposition aux champs rf diminue la radio avec la distance de l'antenne.l'antenne doit se tenir loin du visage et des yeux. Quand ports sur le corps, toujours place de la radio dans un tui, hytera approuv titulaire, ou un harnais ou par l'utilisation de la vido pour ce produit.utilisation des accessoires non approuvs peuvent entraner des fac qui dpassent les niveaux d'exposition professionnelle et environnementale contrle des limites d'exposition aux rf. Les oprations doivent satisfaire aux deux conditions suivantes:

Ce dispositif peut ne pas causer d 'interfrences nuisibles. Ce dispositif doit accepter toute interfrence reue, Y compris les interfrences qui peuvent provoquer des accidents.Operation Non approuv des antennes, les piles et les accessoires causes la radio dpasser les lignes directrices sur l'exposition aux radiofrquences de fac. Communiquez avec votre distributeur local pour les accessoires facultatifs du produit. ISEDC Statement The device has been tested and complies with SAR limits, users can obtain Canadian information on RF exposure and compliance Aprs examen de ce matriel aux conformit aux limites DAS, et/ou aux limites dintensit de champ RF, les utilisateurs peuvent sur lexposition aux radiofrquences et la conformit and compliance dacqurir les informations correspondantes EU Regulatory Conformance As certified by the qualified laboratory, the product is in compliance with the essential requirements and other relevant provisions of the following directives: 2014/53/EU, 2006/66/EC, 2011/65/EU, and 2012/19/EU. Please note that the above information is applicable to EU countries only.

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(CAUTION

Hytera Communications Corporation Limited Add: Hytera Tower, Hi-Tech Industrial Park North, 9108# Beihuan Road, Nanshan District, Shenzhen, 518057 China Tel: +86-755-26972999 Fax: +86-755-86139020 Email: tiantian.chen@hytera.com FCC Confidential Authorization Date: 2019-11-14 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: YAMHP78XVHF In accordance with Sections 0.457 and 0.459 of the Commissions Rules, Hytera Communications Corporation Limited, hereby requests long-term confidential treatment of information accompanying this application as outlined below:

Block Diagram Schematics Operation Description Parts List/Tune-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, Signature:

Tiantian Chen Certification Engineer QA-FR-172-A

Hytera Communications Corporation Limited Add: Hytera Tower, Hi-Tech Industrial Park North, 9108# Beihuan Road, Nanshan District, Shenzhen, 518057 China Tel: +86-755-26972999 Fax: +86-755-86139020 Email: tiantian.chen@hytera.com FCC Authorization Date: 2019-11-14 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern:

We, Hytera Communications Corporation Limited, hereby authorizes Bay Area Compliance Laboratories Corporation 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 Bay Area Compliance Laboratories Corp. 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, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature:

Tiantian Chen Certification Engineer QA-FR-170-B

Hytera Communications Corporation Limited Add: Hytera Tower, Hi-Tech Industrial Park North, 9108# Beihuan Road,Nanshan District, Shenzhen, 518057 China Tel: +86-755-26972999 Fax: +86-755-86139020 Email: tiantian.chen@hytera.com DECLARATION OF SIMILARITY Date: 2019-10-28 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam:

We,HyteraCommunicationsCorporationLimited,herebydeclarethattheproduct:DigitalPortableRadio, FCCID:YAMHP78XVHFmodels:HP780VHF,HP786VHF,HP788VHF,HP785VHFareelectricallyidenticalwiththe model: HP782 VHF which was tested by BACL with the same electromagnetic emissions and electromagnetic compatibilitycharacteristics. A description of the differences between those models and that are declared similar are as follows:

They are the same product, and just the different model name, the rest are the same. Please contact me should there be need for any additional clarification or information. Best Regards, Signature:

Printed Name: Tiantian Chen Title: Certification Engineer

Hytera Communications Corporation Limited Add: Hytera Tower, Hi-Tech Industrial Park North, 9108# Beihuan Road, Nanshan District, Shenzhen, 518057 China Tel: +86-755-26972999 Fax: +86-755-86139020 Email: tiantian.chen@hytera.com Date: 2019-11-14 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Extended Frequencies Justification for Certification of Transmitter with FCC ID: YAMHP78XVHF Dear Sir/Madam, This transmitter was designed to operate in following frequency ranges: 136-174MHz To aid equipment authorization in other countries which accept the United States FCC Grant for Certification, Hytera Communications Corporation Limited is requesting that the FCC lists the frequencies 136-174MHz, under FCC Rule Parts 22, 74, 80 and 90 on the FCC Grant. Hytera Communications Corporation Limited attests that the Digital Portable Radio will not be marketed to USA users with the frequency band which is not allowed by the rule Parts 22, 74, 80 and 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) FCC Rule Part 136-150.8 150.8-152.855 152.855-154 154-156.2475 156.2475-157.1875 157.1875-157.45 157.45-161.575 161.575-161.625 161.625-161.775 161.775-161.9625 161.9625-162.0375 162.0375-173.2 173.2-173.4 173.4-174 For Federal FCC Part 22/ FCC Part 90 FCC Part 74/ FCC Part 90 FCC Part 80/ FCC Part 90 FCC Part 80 FCC Part 80/ FCC Part 90 FCC Part 22/ FCC Part 74/ FCC Part 80/ FCC Part 90 FCC Part 22/ FCC Part 80 FCC Part 22/ FCC Part 74/

FCC Part 80/ FCC Part 90 FCC Part 80 FCC Part 74/ FCC Part 90 FCC Part 90 For Federal Also, equipment programming is the responsibility of Authorized Service Personnel, the Digital Portable 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. Please contact me if you require any additional information. Sincerely Yours, Signature:

Tiantian Chen Certification Engineer

Hytera Communications Corporation Limited Add: Hytera Tower, Hi-Tech Industrial Park North, 9108# Beihuan Road, Nanshan District, Shenzhen, 518057 China Tel: +86-755-26972999 Fax: +86-755-86139020 Email: tiantian.chen@hytera.com Justification Letter Date: 2019-11-14FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: YAMHP78XVHF Model number: HP782 VHF,HP780 VHF,HP786 VHF,HP788 VHF,HP785 VHFDear Sir/Madam, We, Hytera Communications Corporation Limited, acknowledge that this device will not be marketed to USA users with the frequency band which is not allowed by rule part 90.and it is a violation of FCC rules if this device is operated on unauthorized frequencies inside the U.S.A. This equipment meets the requirements of the FCC Rules, Parts 90.203(e) and (g), as applicable. Programming of this products transmit frequencies can be performed ONLY by the manufacturer or by service or by maintenance personal. The operator cant program transmit frequencies using the equipments external operation controls. This is to certify that the requirements of 47 CFR Part 90.203(j)(4) and (5) spectrum efficiency are met by the Hytera Communications Corporation Limited as demonstrated by the tests conducted on the sample radio provided. The tests show that the 4FSK data rate is in accordance with ETSI TS 102 361-1, that is 9600 bits per second in a 12.5 kHz bandwidth to satisfy the data rate requirement of 4800 bits per second per 6.25 kHz of channel bandwidth (7K60F1D emissions). Additionally the Digital Portable Radio uses the AMBE+2 half-rate vocoder to compress 60 ms of normal bursts are sent in alternate 30 ms TDMA slots and so comply with the equivalence of one voice channel per 6.25 kHz bandwidth (7K60F1E emission). Additionally the radio also meets the requirement of one voice channel per 12.5kHz of channel bandwidth for analogue speech (11k0F3E emission). Sincerely Yours, Signature: Tiantian Chen Certification Engineer