YJH-GM-900MSSGrand Multicom

Copyright ⓒ 2020, Lab-T, Inc. User Manual

Maytel Co., Ltd 417 Doosan Venture Digm 126-1, Pyeongchon-dong, Dongan-gu, Anyang-si, Gyeonggi-do, Republic of Korea Date : May, 14, 2020 Dear Sir/Madam, Re : Project and Product Certification Representative Authorization Letter We, Maytel Co., Ltd hereby authorize Bureau Veritas Consumer Product Services, Inc. to act as a Certification Body for certifying for the following project : - Product Type : Grand Multicom - Manufacturer : Maytel Co., Ltd - FCC ID : YJH-GM-900MSS We, the undersigned, hereby authorize SangHoon, Yu of Lab-T, Inc. to act on our behalf in all manners relating to application for equipment authorization for FCCID: YJH-GM-900MSS signing of all documents relating to these matters. Any and all acts carried out by SangHoon, Yu of Lab-T, Inc. on our behalf shall have the same affect as acts of our own. This authorization is valid until further written notice from Maytel Co., Ltd , 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. 853(a). This authorization is valid until further written notice from the applicant. Sincerely Yours, Su Won, Bae President

SCS-F19: Confidentiality Request Letter Page 1 of 3 Rev 6.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Confidentiality Request Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Adding CFR 2.459 (obsolete) 1.0 2.0 August – 11 - 2008 Updated company template & Added text box (obsolete) 2.0 3.0 Jan-31-2012 Added IC confidentiality letter form (obsolete) 3.0 4.0 March-26-2015 Corrections to STC form. Added reference to KDB (obsolete) 4.0 5.0 Nov-19-2015 Updated company logo (current) 5.0 6.0 Jun-26-2019 SCS-F19: Confidentiality Request Letter Page 2 of 3 Rev 6.0 , Maytel Co., Ltd 417 Doosan Venture Digm 126-1, Pyeongchon-dong, Dongan-gu, Anyang-si, Gyeonggi-do, Republic of Korea Date : May, 14, 2020 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: YJH-GM-900MSS Pursuant to sections 0.457 and 0.459 of CFR 47, we respectfully request permanent confidential treatment of the following Exhibits accompanying this application as: - Block Diagram - Schematics - Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, (Signature) Su Won, Bae / President +82-31-487-5508 417 Doosan Venture Digm 126-1, Pyeongchon-dong, Dongan-gu, Anyang-si, Gyeonggi-do, Republic of Korea SCS-F19: Confidentiality Request Letter Page 3 of 3 Rev 6.0 Maytel Co., Ltd 417 Doosan Venture Digm 126-1, Pyeongchon-dong, Dongan-gu, Anyang-si, Gyeonggi-do, Republic of Korea Date :May, 14, 2020 To: Federal Communications Commission Office of Engineering and Technology Equipment Authorization Division 7345 Oakland Mills Road Columbia, Maryland 21046 Subject: Short Term Confidentiality Request for FCC ID: YJH-GM-900MSS To Whom It May Concern: Pursuant to sections 0.457 and 0.459 of CFR 47, and to avoid premature release of sensitive information prior to marketing or release of the product to the public, the applicant requests the following documents contained in this certification application be temporarily withheld from public disclosure for an initial period of 45 or 180 days; or for a specified date of / / not to exceed 180 days from the Grant Date. See KDB 726920.. - User Manual - Internal Photos - External Photos - Test Setup photos The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Sincerely, (Signature) Su Won, Bae / President +82-31-487-5508 417 Doosan Venture Digm 126-1, Pyeongchon-dong, Dongan-gu, Anyang-si, Gyeonggi-do, Republic of Korea

Page: 1 / 5 Copyright ⓒ 2020, Lab-T, Inc. External Photos Page: 2 / 5 Copyright ⓒ 2020, Lab-T, Inc. External Photos Front Rear Page: 3 / 5 Copyright ⓒ 2020, Lab-T, Inc. External Photos Top Bottom Page: 4 / 5 Copyright ⓒ 2020, Lab-T, Inc. External Photos Left Right Page: 5 / 5 Copyright ⓒ 2020, Lab-T, Inc. External Photos Dipole Antenna(3.86 dBi) Dipole Antenna(1.00 dBi)

Copyright ⓒ 2020. Lab-T, Inc. Label Informaion Copyright ⓒ 2020. Lab-T, Inc. Label information Location

Page: 1 / 3 Copyright ⓒ 2020. Lab-T, Inc. Internal Photos Page: 2 / 3 Copyright ⓒ 2020. Lab-T, Inc. Internal Photos Main Board Front Main Board Rear Page: 3 / 3 Copyright ⓒ 2020. Lab-T, Inc. Internal Photos inside

Ref. No.: LR500112005B Copyright ○ c 2020, LTA Co., Ltd. Page 1 of 53 243 Jubug-Ri,Yangji-Myeon, Yongin-Si, Gyeonggi-Do, Korea 449-822 Tel: +82-31-323-6008 Fax: +82-31-323-6010 http://www.ltalab.com SAR TEST REPORT Equipment Under Test FCC Model Name IC Model Name Trade Mark Applicant Address of Applicant FCC ID IC Date of Receipt Date of Test(s) Date of Issue Max.SAR(1g) : Frequency Hopping Spread Spectrum systems (DSS) : GM-900MSS : GM-900MSS : Maytel Co., Ltd : Maytel Co., Ltd : #417 Doosan Venture Digm 126-1, Pyeongchon-dong,Dongan-gu, Anyang-si, Gyeonggi-do, Republic of Korea : YJH-GM-900MSS : 9066A-GM900MSS : 2020-05-08 : 2020-05-12 ~ 2020-05-12 : 2020-05-12 : 1.154 W/kg Standards: KDB Publication 447498 IEEE 1528, 2013 ANSI/IEEE C95.1, C95.3 In the configuration tested, the EUT complied with the standards specified above. Remarks: This report details the results of the testing carried out on one sample, the results contained in this test report do not relate to other samples of the same product. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in this report. This report may only be reproduced and distribute in full. If the product in this report is used in any configuration other than that detailed in the report, the manufacturer must ensure the new system complies with all relevant standards. Any mention of LTA Co., Ltd. Or testing done by LTA Co.,Ltd. In connection with distribution or use of the product described in this report must be approved by LTA Co.,Ltd. In writing. Tested by ; : Eun-Hwan Jung Approved by : Ja-Beom Koo 2020-05-12 2020-05-12 Ref. No.: LR500112005B Copyright ○ c 2020, LTA Co., Ltd. Page 2 of 53 Contents 1. EXECUTIVE SUMMARY & EUT INFORMATION ................................................ 2. INTRODUCTION ................................................................................................... 3. SAR MEASUREMENT SETUP ............................................................................. 4. ANSI/IEEE C95.1-2005 RF EXPOSURE LIMIT .................................................... 5. SYSTEM AND LIQUID VALIDATION ................................................................... 6. TYPE A MEASUREMENT UNCERTAINTY ......................................................... 7. OUTPUT POWER VERIFICATION ....................................................................... 8. SAR TEST RESULTS ........................................................................................... ANNEX A. TEST INSTRUMENT ........................................................................... ANNEX B. Simulated tissue electrostatic measurement results........................... ANNEX C. CALIBRATION REPORTS ..................................................................... 3 4 6 17 18 22 24 24 31 32 33 Ref. No.: LR500112005B Copyright ○ c 2020, LTA Co., Ltd. Page 3 of 53 The purpose of this test programmed was to demonstrate compliance of the Intermec Technologies Corporation Model: 1005CP01 against the current Stipulated Standards. The Mobile Computer have demonstrated compliance with the C95.1 , IEEE 1528, KDB Publication 447498, RSS-102 Issue 5 and Safety Code 6. The test has demonstrated that this unit complies with stipulated standards. EUT information EUT Description Frequency Hopping Spread Spectrum systems (DSS) FCC Model No. GM-900MSS IC Model No. GM-900MSS Serial No. Identical prototype FCC Variant Model Cobalt Plus, MicroCom XR, MicroCom XR 900, GM-900, GM-900M, RefAudio Elite, GM-900MS, 00004394 IC Variant Model Cobalt Plus 900, MicroCom 900, 00004394 Mode of Operations FHSS Body-Worn Accessory belt clip case TX Frequency Range 902.5 MHz ~ 927.0 MHz Conducted Max Power 25.05 dBm Battery Type DC 3.7 V Antenna Location <Front view> 1. Executive Summary & EUT Information Top Edge Left EdgeRight Edge Bottom Edge Ref. No.: LR500112005B Copyright ○ c 2020, LTA Co., Ltd. Page 4 of 53 Antenna 1TypeExternal Dipole Ant Gain1.00 dBi Usage distanceUsed with the rear of the product adhered to the body part. Antenna 2 (Antennas used for testing) TypeExternal Dipole Ant Gain3.86 dBi Usage distanceUsed with the rear of the product adhered to the body part. Ref. No.: LR500112005B Copyright ○ c 2020, LTA Co., Ltd. Page 5 of 53 Introduction This measurement report shows compliance of the EUT with KDB Publication 447498 & RSS 102 Issue 5.0. The test procedures, as described in ANSI C95.1 – 2005 Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz [2], and ANSI C95.3 – 2002 Recommended Practice for the Measurement of Potentially Hazardous Electromagnetic Fields [3], were employed. SAR Definition Specific Absorption Rate is defined as the time derivative (rate) of the incremental energy (dW) absorbed by (dissipated in) an incremental mass (dm) contained in a volume element (dV) of a given density (ρ). SAR is expressed in units of watts per kilogram (W/kg). SAR can be related to the electric field at a point by where: σ = conductivity of the tissue (S/m) ρ = mass density of the tissue (kg/m3) E = rms electric field strength (V/m) 2. Introduction Ref. No.: LR500112005B Copyright ○ c 2020, LTA Co., Ltd. Page 6 of 53 Dosimetric Assessment System These measurements were performed with the automated near-field scanning system OPENSAR from SATIMO. The system is based on a high precision robot (working range: 850 mm), which positions the probes with a positional repeatability of better than ± 0.02 mm. Special E- and H-field probes have been developed for measurements close to material discontinuity, the sensors of which are directly loaded with a Schottky diode and connected via highly resistive lines to the data acquisition unit. The SAR measurements were conducted with dosimetric probe (manufactured by SATIMO), designed in the classical triangular configuration and optimized for dosimetric evaluation. The probe has been calibrated acc…

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REPORT No.:TRRFCC20-0006 Total 54 pages TRF-R-016(00) Page: 2 / 54 Copyright ⓒ 2020. Lab-T, Inc. CONTENTS 1. Applicant Information .................................................................................................................................... 3 2. Laboratory Information ................................................................................................................................. 3 3. Information About Test Equipment ............................................................................................................ 4 3.1 Equipment Information .......................................................................................................................................................... 4 3.2 Antenna Information............................................................................................................................................................... 4 3.3 Test Frequency ........................................................................................................................................................................... 4 3.4 Tested Companion Device and accessory Information ............................................................................................ 5 3.5 Operating conditions for the EUT ..................................................................................................................................... 5 3.6 Equipment Channel List ........................................................................................................................................................ 6 4. Test Report ....................................................................................................................................................... 7 4.1 Summary ...................................................................................................................................................................................... 7 4.2 Measurement Uncertainty .................................................................................................................................................... 8 4.3 Test Report Version ................................................................................................................................................................. 8 4.4 Transmitter Requirements ..................................................................................................................................................... 9 4.4.1 Antenna Requirement .................................................................................................................................................... 9 4.4.2 20 dB Bandwidth and Occupied Bandwidth ....................................................................................................... 10 4.4.3 Number of Hopping Frequencies ............................................................................................................................ 15 4.4.4 Average Time of occupancy ...................................................................................................................................... 17 4.4.5 Carrier Frequencies Separation ................................................................................................................................ 22 4.4.6 Peak Output Power ....................................................................................................................................................... 26 4.4.7 Spurious Emission, Band Edge, Restricted Bands ............................................................................................. 30 4.4.8 Receiver Radiated Emission ............................................................................................. .......................................... 48 4.4.9 Conducted Emission ..................................................................................................................................................... 52 APPENDIX I ............................................................................................................................................................ 53 REPORT No.:TRRFCC20-0006 Total 54 pages TRF-R-016(00) Page: 3 / 54 Copyright ⓒ 2020. Lab-T, Inc. 1. Applicant Information Applicant : Maytel Co., Ltd Address : #417 Doosan Venture Digm 126-1, Pyeongchon-dong, Dongan-gu, Anyang-si, Gyeonggi-do, Republic of Korea Telephone No. : +82-32-487-5508 Person in charge : Su Won, Bae / [email protected] Manufacturer : Maytel Co., Ltd Address : #417 Doosan Venture Digm 126-1, Pyeongchon-dong, Dongan-gu, Anyang-si, Gyeonggi-do, Republic of Korea 2. Laboratory Information Test Laboratory : Lab-T, Inc. Address : 2182-42 Baegok-daero, Mohyeon-myeon, Cheoin-gu, Yongin-si Gyeonggi-do 17036, South Korea Telephone No. : +82 31-322-6767 Facsimile No. : +82 31-322-6768 Certificate FCC Designation No. : KR0159 FCC Registration No. : 133186 IC Site Registration No. : 22000 REPORT No.:TRRFCC20-0006 Total 54 pages TRF-R-016(00) Page: 4 / 54 Copyright ⓒ 2020. Lab-T, Inc. 3. Information About Test Equipment 3.1 Equipment Information Equipment type Grand Multicom Basic model name GM-900MSS FCC Vriant model name Cobalt Plus, MicroCom XR, MicroCom XR 900, GM-900, GM-900M, RefAudio Elite, GM-900MS, 00004394 Note2 IC Viant model name Cobalt Plus 900, MicroCom 900, 00004394 Note2 Frequency range 902.5 MHz ~ 927 MHz (Number of Channels : 50, Hopping Channels : 50) Modulation type (Symbol rate / Bit rate) GFSK (625 ksps / 1250 kbps) Modulation technology FHSS Power supply DC 3.7 V H/W version V0.3 S/W version V0.3 Note1:The above EUT information was declared by the manufacturer. Note2: Variant Model Names are used for each other different Buyers. . 3.2 Antenna Information Antenna 1 Type Dipole Antenna Gain 1.00 dBi Antenna 2 Type Dipole Antenna Gain 3.86 dBi 3.3 Test Frequency Test mode Test frequency (MHz) Lowest frequen…

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Copyright ○ c 2020, LTA Co., Ltd. Page 1 of 2 Test Setup Photographs Front of Device 10 mm from Phantom Top view Front of Device 10 mm from Phantom Side view Copyright ○ c 2020, LTA Co., Ltd. Page 2 of 2 Rear of Device 0 mm from Phantom Top view Rear of Device 0 mm from Phantom Side view

Page: 1 / 3 Copyright ⓒ 2020. Lab-T, Inc. Test Setup Photos Page: 2 / 3 Copyright ⓒ 2020. Lab-T, Inc. Test Setup Photos Radiated Emission_9 kHz ~ 30 MHz Test distance : 3 m, height of table : 0.8 m Radiated Emission_30 MHz ~ 1 GHz Test distance : 3 m, height of table : 0.8 m Page: 3 / 3 Copyright ⓒ 2020. Lab-T, Inc. Test Setup Photos Radiated Emission_1 GHz ~ 10 GHz Test distance : 1 m, height of table : 1.5 m