SWN-PT21UGPS TRACKING & TRAINING

Rev 1/26/2023 Dogtra Co., Ltd. 35, Namdongdong-ro 33beon-gil, Namdong-gu, Incheon, South Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 12-09-2025 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: SWN-PT21U [Dogtra Co., Ltd.] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. [Dogtra Co., Ltd.] (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, Yong Byeong Chae Rev 1/26/2023 Dogtra Co., Ltd. 35, Namdongdong-ro 33beon-gil, Namdong-gu, Incheon, South Korea Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 12-09-2025 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: SWN-PT21U [Dogtra Co., Ltd.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, Yong Byeong Chae

Dogtra Co., Ltd. 35, Namdongdong-ro 33beon-gil, Namdong-gu, Incheon, South Korea Date: 12/09/2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Request of Confidentiality FCC ID: SWN-PT21U To Whom It may Concern: Pursuant to Sections 0.457 and 0.459 of the Commission`s Rules(CFR 47), and Section 552 (b) (4) of the Freedom of Information Act, Dogtra Co., Ltd. hereby requests confidentiality and treatment of certain information accompanying this application. The materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. We are also hereby request Short-Term Confidentiality for 180 days after the grant as outlined in Public Notice DA 04-1705. This provision will give Dogtra Co., Ltd. temporary confidentiality of commercially sensitive information prior to product release. The requested permanent and Short-Term Confidential exhibits are listed as follows: PERMANENT & SHORT-TERM CONFIDENTIAL LIST Exhibit Description PERMANENT 1 Block Diagram 2 Schematics 3 Part Lists 4 Operation Description 5 Part Location 6 Tune-up procedure SHORT-TERM 6 Internal Photos 7 External Photos 8 Test-Setup Photos 9 User Manual The Applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentations, where applicable, will not be public before the date of the Grant for this application. Sincerely, Contact Name: Yong Byeong Chae Title: Deputy Manager

Dogtra Co., Ltd. 35, Namdongdong-ro 33beon-gil, Namdong-gu, Incheon, South Korea Date: 12/09/2025 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Letter of Authorization We, the undersigned, hereby authorize Geunki Son of Dt&C Co., Ltd. to act on our behalf in all manners relating to application for equipment authorization for FCC ID: SWN-PT21U including signing of all documents relating to these matters. Any and all acts carried out by Geunki Son of Dt&C Co., Ltd. on our behalf shall have the same affect as acts of our own. This authorization is valid until further written notice from Dogtra Co., Ltd. “I, 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).” Sincerely, Contact Name: Yong Byeong Chae Title: Deputy Manager

belt clip Note: FCC ID is located under the belt clip.The product is packaged with the belt clip provided as a separa te accessory. During initial setup, the end user ins talls the belt clip onto the dev ice, and the label is clearly visible before the clip is attached.

TEST REPORT Report No. : KES-SR250248 Page 1 / 49 KES Co., Ltd. #3002, #3503, #3701, 40, Simin-daero365beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14057, Republic of Korea Tel : +82-31-425-6200, Fax : +82-31-341-3838 KES-QP16-F01(00-23-01-01) KES Co., Ltd. You can check the authenticity of this test report on our website (www.kes.co.kr). 1. Client ○ Name : Dogtra Co., Ltd. ○ Address : 35, Namdongdong-ro 33beon-gil, Namdong-gu, Incheon 21694 Rep. of KOREA 2. Sample Description ○ Product item : GPS TRACKING & TRAINING ○ FCC ID : SWN-PT21U ○ Model name : PT21U ○ Multiple Model Name : PATHFINDER2 MINI COMPASS, PATHFINDER2 COMPASS, COMPASS HANDHELD GPS CONNECTOR ○ Manufacturer etc. : Dogtra Co., Ltd. 3. Date of test : 2025.11.28 4. Location of Test :  Permanent Testing Lab  On Site Testing ○ Address : #3002, #3503, #3701, 40, Simin-daero365beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14057, Republic of Korea 5. Test method used : CFR §2.1093 6. Test result : PASS The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced and copied without permission without the written consent of KES Co., Ltd. This laboratory is not accredited for the test results marked *. This test report is not related to KOLAS accreditation. Affirmation Tested by Technical Manager Name : Min-sup, Kim (Signature) Name : Wi-han, Jeong (Signature) 2025 . 12. 11. KES Co., Ltd. Report No. : KES-SR250248 Page 2 / 49 KES-QP16-F01(00-23-01-01) KES Co., Ltd. You can check the authenticity of this test report on our website (www.kes.co.kr). REPORT REVISION HISTORY Date Test Report No. Revision History 2025.12.11 KES-SR250248 Initial This report shall not be reproduced except in full, without the written approval of KES Co., Ltd. This document may be altered or revised by KES Co., Ltd. personnel only, and shall be noted in the revision section of the document. Any alteration of this document not carried out by KES Co., Ltd. will constitute fraud and shall nullify the document. Report No. : KES-SR250248 Page 3 / 49 KES-QP16-F01(00-23-01-01) KES Co., Ltd. You can check the authenticity of this test report on our website (www.kes.co.kr). TABLE OF CONTENTS 1. General Information ....................................................................................................................................... 4 1.1. Highest SAR Summary ........................................................................................................................... 4 1.2. Device Overview ..................................................................................................................................... 4 1.3. Power Reduction for SAR ....................................................................................................................... 4 1.4. Nominal and Maximum Output Power Specifications ............................................................................ 5 1.5. Simultaneous Transmission Capabilities ................................................................................................ 5 1.6. DUT Antenna Locations .......................................................................................................................... 6 1.7. Near Field Communications (NFC) Antenna .......................................................................................... 6 1.8. Miscellaneous SAR Test Considerations ................................................................................................ 6 1.9. Guidance Applied .................................................................................................................................... 7 1.10. Device Serial Numbers ........................................................................................................................... 7 2. Introduction ............................................................................................................................................. 8 2.1. SAR definition ......................................................................................................................................... 8 2.2. SAR Measurement Setup ....................................................................................................................... 9 3. Dosimetric Assessment ........................................................................................................................ 13 4. TEST CONFIGURATION POSITIONS ................................................................................................. 14 4.1. Device Holder ....................................................................................................................................... 14 4.2. Positioning for Testing ........................................................................................................................... 14 5. RF Exposure Limits .............................................................................................................................. 15 5.1. Uncontrolled Environment .................................................................................................................... 15 5.2. Controlled Environment ........................................................................................................................ 15 6. FCC Measurement Procedures ............................................................................................................ 16 6.1. Measured and Reported SAR............................................................................................................... 16 6.2. Procedures Used to Establish RF signal for SAR ................................................................................ 16 6.3. Handheld push-to-talk (PTT) two-way radios ....................................................................................... 16 7. RF Conducted Power ...............................…

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Report No.: DRTFCC2512-0095(1) FCC ID: SWN-PT21U This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-252(00)251203 Pages: 2 / 35 Test Report Version Test Report No. Date Description Revised by Reviewed by DRTFCC2512-0095 Dec, 11. 2025 Initial issue SeungMin Gil JaeJin Lee DRTFCC2512-0095(1) Dec, 16. 2025 OBW Retest and Equipment Class Modification SeungMin Gil JaeJin Lee Report No.: DRTFCC2512-0095(1) FCC ID: SWN-PT21U This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-252(00)251203 Pages: 3 / 35 Table of Contents 1. GENERAL INFORMATION ........................................................................ 4 2. INTRODUCTION ........................................................................................ 5 2.1. EUT DESCRIPTION ............................................................................................................ 5 2.2. TESTING ENVIRONMENT .................................................................................................. 5 2.3. MEASURING INSTRUMENT CALIBRATION ...................................................................... 5 2.4. MEASUREMENT UNCERTAINTY ....................................................................................... 6 2.5. TEST FACILITY ................................................................................................................... 6 3. LIST OF TEST EQUIPMENT ..................................................................... 7 4. SUMMARY OF TEST RESULTS ................................................................ 8 5. EMISSION DESIGNATOR AND SAMPLE CALCULATION ....................... 9 6. TEST RESULTS ....................................................................................... 10 6.1. OCCUPIED BANDWIDTH ................................................................................................. 10 6.2. TRANSMITTER POWER OUTPUT ................................................................................... 13 6.3. EMISSION MASK AT ANTENNA TERMINAL ................................................................... 16 6.4. SPURIOUS EMISSION AT ANTENNA TERMINAL ........................................................... 24 6.5. FIELD STRENGTH OF SPURIOUS RADIATION .............................................................. 31 6.6. FREQUENCY STABILITY ................................................................................................. 34 Report No.: DRTFCC2512-0095(1) FCC ID: SWN-PT21U This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-252(00)251203 Pages: 4 / 35 1. GENERAL INFORMATION Equipment Class Licensed Non-Broadcast Transmitter Held to Face(TNF) Product Name GPS TRACKING & TRAINING Model Name(s) PT21U Add Model Name PATHFINDER2 MINI COMPASS, PATHFINDER2 COMPASS, COMPASS HANDHELD GPS CONNECTOR Firmware Version Identification Number V3.1.12 EUT Serial Number No Specified Power Supply DC : 3.7 V Modulation Type 2-FSK Emission Type F1D Antenna Type Helical Antenna Antenna Gain 0.5 dBi Modulation TX Frequency (MHz) Emission Designator Conducted Output Power dBm W 2-FSK 151.82 ~ 151.94 8K73F1D 30.71 1.178 154.57 ~ 154.60 8K73F1D 30.72 1.180 Report No.: DRTFCC2512-0095(1) FCC ID: SWN-PT21U This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-252(00)251203 Pages: 5 / 35 2. INTRODUCTION 2.1. EUT DESCRIPTION This device supports the following capabilities: Multi-Use Radio Service 2-FSK modulation, Number of Channels: 5 Channels (Ch. 1: 151.82 MHz, Ch. 2: 151.88 MHz, Ch. 3: 151.94 MHz, Ch. 4: 154.57 MHz, Ch. 4: 154.60 MHz) Test Mode Modulation Lowest Frequency (MHz) Middle Frequency (MHz) Highest Frequency (MHz) 2-FSK 151.82 151.94 154.60 Operation test setup for EUT - Test software: Software application in EUT - Power setting: Default of EUT 2.2. TESTING ENVIRONMENT Ambient Condition ▪ Temperature +21 °C ~ +25 °C ▪ Relative Humidity 40 % ~ 45 % 2.3. MEASURING INSTRUMENT CALIBRATION The measuring equipment, which was utilized in performing the tests documented herein, has been calibrated in accordance with the manufacturer's recommendations for utilizing calibration equipment, which is traceable to recognized national standards. Report No.: DRTFCC2512-0095(1) FCC ID: SWN-PT21U This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-252(00)251203 Pages: 6 / 35 2.4. MEASUREMENT UNCERTAINTY The measurement uncertainties shown below were calculated in accordance with requirements of ANSI C63.26-2015. All measurement uncertainty values are shown with a coverage factor of k = 2 to indicate a 95 % level of confidence. Parameter Measurement uncertainty Antenna-port conducted emission 1.0 dB (The confidence level is about 95 %, k = 2) Radiated emission (1 GHz Below) 5.0 dB (The confidence level is about 95 %, k = 2) Radiated emission (1 GHz ~ 18 GHz) 4.8 dB (The confidence level is about 95 %, k = 2) 2.5. TEST FACILITY Dt&C Co., Ltd. The 3 m test site and conducted measurement facility used to collect the radiated data are located at the 42, Yurim-ro, 154beon-gil, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea 17042. The test site complies with the requirements of Part 2.948. - FCC & ISED MRA Designation No. : KR0034 - FCC Test Firm Registration No. : 704742 - ISED#: 5740A www.dtnc.net Telephone : + 82-31-321-2664 FAX : + 82-31-321-1664 Report No.: DRTFCC2512-0095(1) FCC ID: SWN-PT21U This test report is prohibited to copy or reissue in whole or in part without the approval of Dt&C Co., Ltd. TRF-RF-252(00)251203 Pages: 7 / 35 3. LIST OF TEST EQUIPMENT Type Manufacturer Model Cal.Date (yy/mm/dd) Next.Cal.Date (yy/mm/dd) S/N Spectrum Analyzer KEYSIGHT N9020A 25/11/19 26/11/19 MY50410272 Spectrum Analyzer Agilent Technologies N9020A 25/11/18 26/11/18 MY50410399 Mul…

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Approval Sheet HS16-D150 HYESUNG ELECT & COMM.CO CEO, HOS00, LEE Date 2016.10.11 Version No. 1.0 Subject HS16-D150 2/13 HYESUNG E&C CO. Table of Contents 1. Approval Sheet Check List ______________________________________________________________ 3 2. APPLICATION ____________________________________________________________________________ 4 2.1. Application _____________________________________________________________________________________ 3. Specification _______________________________________________________________________________ 5 3.1. General Specification __________________________________________________________________________ 3.2. Electrical Specificaion __________________________________________________________________________ 3.3. Material Specification ___________________________________________________________________________ 4. Test Procedure & Measurement _________________________________________________________ 6 4.1. Visual inspection ________________________________________________________________________________ 4.2. Electrical Test ____________________________________________________________________________________ 4.2.1. Materials __________________________________________________________________________________ 6 4.2.2. Test __________________________________________________________________________________________ 5. Packing, Shipping, Handling ____________________________________________________________ 8 5.1. Exterior Specifications __________________________________________________________________________ 5.2. Packing __________________________________________________________________________________________ 6. Appearance ________________________________________________________________________________ 9 7. Test Data Sheet __________________________________________________________________________ 11 8. Data Sheet ________________________________________________________________________________ 12 8.1. V.S.W.R _______________________________________________________________________________________ 12 8.2. Impedance ____________________________________________________________________________________ 13 Date 2016.10.11 Version No. 1.0 Subject HS16-D150 3/13 HYESUNG E&C CO. 1. Approval Sheet Check List Version Date Description Remarks Approval issue Set issue Ver 1.0 Ver 1.0 2016.10.11 Initial apply Date 2016.10.11 Version No. 1.0 Subject HS16-D150 4/13 HYESUNG E&C CO. 2. APPLICATION 2.1. Application This specification was described for the HS16-D150 specifications. Date 2016.10.11 Version No. 1.0 Subject HS16-D150 5/13 HYESUNG E&C CO. 3. Specification 3.1. General Specification General specification Model name HS16-D150 Antenna type Helical Antenna 3.2. Electrical Specification Electrical specification Frequency range 150㎒ V.S.W.R 2.0 : 1 Max. Gain(dBi) 0±0.5 Radiation pattern Omni-directional Polarization Vertical Max Power(W) 5W Max. Impedance 50 Normalizer 3.3. Material Specification Mechanical specification Connector type SMA(M) Cover material Polyurethane Color Black Temperature range -30°C ~ 70°C Weight ± 1.0g Dimension See Drawing Date 2016.10.11 Version No. 1.0 Subject HS16-D150 6/13 HYESUNG E&C CO. 4. Test Procedure & Measurement 4.1. Visual inspection Appearance and dimensions of the Antenna, Connector etc, and make sure it matches the “6” once protested outside attachments. 4.2. Electrical Test 4.2.1. Materials Device Model QuantitySpec Network Analyzer HP8753E 1EA ∙ Freq. Range : 300KHz ~ 3GHz ∙ Accuracy : <5ppm ∙ Dynamic Range : 105dB ∙ Trace at ±200dB ∙ Resolution : 1Hz ∙ Impedance : 50  Adaptor 1EA ∙ N(M) Calibration Kit HP85032B 1Set ∙ DC ~ 6GHz (N-Type) 4.2.2. Test Figure 1. Test Condition of Network Analyzer PRINTER Date 2016.10.11 Version No. 1.0 Subject HS16-D150 7/13 HYESUNG E&C CO. 4.2.2.1. Test A. Device Setting and Calibration 1) Device Setting ⓐ Frequency Band : Center Frequency: 150.0MHz, Span :120.0MHz ⓑ Source Power : 10dBm, ⓒ IF Bandwidth : 1000Hz ⓓ Number of Point : 401 2) Calibration Using the N-Type Cal Kit and 1 Port Calibration to O.S.L method. ⓐ S 11 Calibration : The Port 1 Calibration (Open, Short, Load) 3) Calibration Verification ⓐ Port 1 connect is Load, and S 11 VSWR check less than 1.02 : 1. ⓑ Port 1 connect is Load, and S 21 Value check less than –80.0dB. If the check result fails to meet the criteria above, repeatedly perfoms the 2) above, wherein Calibration. B. Test Description List Description Spec VSWR As shown in the above fugure 1, connect to Network Analyzer Port 1 of ANT, and then measures the value of S 11 in the Operating Band. 1.9:1 Max. Impedance As shown in the above fugure 1, connect to Network Analyzer Port 1 of ANT, and then measures the value of Smith-Chart S 11 in the Operating Band. 50 ± 20Ω Date 2016.10.11 Version No. 1.0 Subject HS16-D150 8/13 HYESUNG E&C CO. 5. Packing, Shipping, Handling 5.1. Exterior Specifications A. Should be apply the Purchaser and Manufacturer name. B. Should be apply the Model name and Lot NO, Quantity. C. The above specifications agreed upon by the purchaser and the manufacturer may be subject to change. 5.2. Packing A. Packing is can be protected from vibration, shock, according to the storage and transport. B. The above specifications agreed upon by the purchaser and the manufacturer may be subject to change.. Date 2016.10.11 Version No. 1.0 Subject HS16-D150 9/13 HYESUNG E&C CO. 6. Appearance No. DWG No. TITLE REV. Page Remarks 1 HS16-D150 ASS’Y 1.0 1/1 Date 2016.10.11 Version No. 1.0 Subject HS16-D150 10/13 HYESUNG E&C CO. Date 2016.10.11 Version No. 1.0 Subject HS16-D150 11/13 HYESUNG E&C CO. 7. Test Data Sheet Parameter Specification Data 25°C V.S.W.R 2.0 : 1 Max. 1.7444 : 1 Impedance 50 ± 20Ω 69.21 Date 2016.10.11 Version No. 1.0 Subject HS16-D150 12/13 HYESUNG E&C CO. 8. Data Sheet 8.1. V.S.W.R Date 2016.10.11 Version No. 1.0 Subject HS16-D150 13/13 HYESUNG E&C CO. 8.2. Impedance