R72EP400FM Handheld Transceiver (UHF)

EP400 Ver. 1.0 E-TECH Co., Ltd 1/16 ▶Table of Contents◀ 1. Introduction 2. Description of Unit 3. Technical Specifications 4. Theory of Operation 5. Circuit Descriptions Any changes or modifications to the equipment not expressly approved by the party responsible for compliance could void user’s authority to operate the equipment. EP400 Ver. 1.0 E-TECH Co., Ltd 2/16 1. Introduction EP400 has a compact size with a various features in the range of 403~520MHz. EP400 Has a various features shown as below. EP400 constructed with a microprocessor controlled, temperature compensated Phase Locked Loop(PLL) frequency synthesizer. The radio features a double conversion receiver and a direct FM transmitter modulator. A special integrated circuit provides support to sub-audible signaling(CTCSS & DCS) and most of the receiving parts are switched off periodically in the power save mode to reduce battery current drain during standby. 2. Description of Unit Items Model Radio EP400 Antenna 1700mAh Li-Ion battery pack Desktop rapid charter Adaptor Supplied Package User manual Items Model External / Speaker Microphone Earpiece Microphone Earpiece VOX Microphone Accessories VOX & PTT Headset EP400 Ver. 1.0 E-TECH Co., Ltd 3/16 3. Technical Specifications 3-1 General 1) Frequency range : 403 ~ 520 MHz 2) Channels : 255 Channels 3) Channel spacing : 12.5 kHz/25 kHz 4) Communication method : Simplex 5) Antenna Impedance : 50 ohm 6) Antenna : Helical Antenna 7) Power supply voltage : LI-1700mAh Li-Ion battery pack(Voltage: 7.4V DC) 8) Current Drain : When Transmitting(5W) - < 2A When Receiving(0.5W) - < 300mA Transmit standby - < 60mA Receiver standby(PSC MODE) - < 50mA 9) Microphone : Internal Condenser Microphone(External Speaker Micro phone is available) 10) Operating temperature range: -30 +°C∼60°C 11) Size : 55(W)x114(H)x30(D) 12) Weight : 300g 3-2 Transmitter 1) Power Output : HIGH – 4W, LOW - 1W 2) Modulation : 8K5OF3E/16KOF3E 3) Oscillator method : PLL 4) Frequency Stability : less than ±0.00025% (±2.5PPM) 5) Maximum frequency deviation: ±2.5 kHz(Narrow)/ ±5 kHz(Wide) 6) Audio Distortion : less than 5% (1 kHz 60%) 7) SPURIOUS Emission : -36 [dBm] 8) FM Hum & Noise : -40 [dB] (HP8920A 300Hz 3kHz BP∼F) 9) BAND SPREAD : 117 [MHz] EP400 Ver. 1.0 E-TECH Co., Ltd 4/16 3-3 Receiver 1) Receiver Type : Double Super Hetero type 2) Sensitivity : -0.25uV e.m.f ( 12dB SINAD ) 3) Frequency Stability : ±0.00025%(±2.5PPM) 4) SPURIOUS Rejection : -70 dB 5) Adjacent Channel Selectivity: -60 dB (Narrow) , -70 dB (Wide) 6) Distortion : 5% (1 kHz 60%) 7) Hum & Noise : -40 dB(HP8920A 300Hz ∼3kHz BPF) 8) Audio output : 1000 mW 9) BAND SPREAD : 117MHz 10) Speaker size : 45 pi 4. Theory of Operation EXTERNAL VIEW 4)Emergency Key Antenna PTT Monitor Button Ear/Mic jack Power ON / OFF KEY PAD LCD Speaker EP400 Ver. 1.0 E-TECH Co., Ltd 5/16 4-1 Features & Operation 1. Monitor Press the Monitor key momentarily to disable the Tone squelch. 2. Radio Call By using Various 5Tone, individual / Group call is available. 16 Receiving codes are available as well as open call. 3. Missed calls list 16 Missed calls can be listed. If a call remains unanswered, the call will be stored by the radio. 4. contact list During a call, the contact list may be used to give access to up to 16 preprogrammed numbers accessed via the menu. 5. status list A status is a code for transmitting prearranged messages, e.g. status “05” may indicate “launch”. Status list contains up to 30 entries. 6. Channel : 255 channel 7. Scan ON/off 8. Power level : Power level is adjustable in each channel respectively. 9. Talkaround on/off 10. Emergency : 11. Lone Worker 12. Tx Tone select : In the menu, tx dcs /ctcss tone is adjustable. 13. Rx Tone select : In the menu, rx dcs /ctcss tone is adjustable. 14. Group : Defines group tone. You can select tone code for group, and it is used as a default value . 0~9 and a, b, c, d available. And “A” is used as a basic value.. 15. BEEP ON/OFF : BEEP sound ON/OFF. 16. KEY LOCK : LOCK/UNLOCK Button KEY. 17. SQUELCH : Squelch level is adjustable 18. AUTO SQUELCH : Squelch level is adjustable automatically by surroundings. 19. DTMF ON/OFF : DTMF function is available. 20. VOX : VOX LEVEL is adjustable by pushing up and down button. 21. AUTO VOX : VOX level is adjustable automatically by surroundings. 22. P - SCAN : Priority Scan 23. POWER SAVE : Power save mode is available. 24. PASS WORD : This function is useful for security reason. 25. LOCATION INDICATE : Indicate where the radio is located by blinking green light every 7 seconds. 26. SCRMABLE : Internal Voice Scrambler is available. 27. STUN / UNSTUN : For added security and to avoid abuse of the radio system in which you operate a feature known as Stun/Unstun is included in your radio. 28. BACKLIGHT : Lamp is lighting when you check LCD status. EP400 Ver. 1.0 E-TECH Co., Ltd 6/16 4-2 LCD Display and Icons 1.ANT GAZE ; Shows the received signal strength. 2.TX POWER HIGH: Indicate power level 3.KEY LOCK: Appears during key lock function is ON. 4.ALART(BEEP) ON/OFF: Appears when beep sound is turned ON. 5.Battery level indicator: Indicates reaming battery power. 6.VOX ON/OFF: Appears when VOX function is turned On. 7.SCAN: Appears when Scan function is activated. 8.SCRAMBLE: Appears while the voice scrambler function is activated. 9.TALK AROUND Indicator. 4-3 Features 1. Channel This radio offers up to 255 channels 1). By using button, you can select the desired channel. 2. Missed calls list Up to 16 calls can be stored. If the same radio calls more than once, only the most recent call is stored. When fifteen calls have been stored by the radio, depending on the radio programming the sixteenth call received may overwrite the first or not be stored by the radio. 1). to enter Menu Mode. 2) Display shows 3) to select 4) orto scroll list 5) to exit EP400 Ver. 1.0 E-TECH Co., Ltd 7/16 3. Contact list 1). to enter Menu Mode. 2) orto until 3) to select 4) orto scroll list 5) to exit 4. Status…

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'http://www.etech2004.co.kr #403-901, Techno Park Complex 193 Yakdae-Dong Wonmi-Gu, Bucheon, Korea Tel: 82 32 328 0611, Fax: 82 32 328 0612 ■ Top Urgent□ For Review□ Please Reply Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern, This letter is to comply with Section 0.457(d)(2)(i) and 0.459 pertaining to confidential material. We, E-TECH Co., Ltd., would like the following documents regarding this submission for FCC ID: R72EP400 to be kept confidential. 1. Block diagram, Schematic diagram 2. Parts list, Theory of operation The above material contains trade secrets or technical data, which would customarily be guarded from competitors. We do not want these documents to be accessibl e to the general public. Sincerely Yours, JongWoon Kim Executive Director E-TECH Co., Ltd.

'http://www.etech2004.co.kr #403-901, Techno Park Complex 193 Yakdae-Dong Wonmi-Gu, Bucheon, Korea Tel: 82 32 328 0611, Fax: 82 32 328 0612 ■ Top Urgent□ For Review□ Please Reply October 5, 2007 Federal Communications Commission Authorization & Evaluation Division 7435 Oakland Mills Road Columbia, Mar yland, MD 21046, USA Re. FCC ID : R72EP400 Sub ject : Justification Letter for extended frequency range use Gentlemen, We, E-Tech, advices that EP400 Handheld Transceiver has the design capability to be programmed and operated only for the frequency band 403-520 MHz. Especially we shall not program within the band 406-406.1 MHz. We, E-Tech, also acknowled ge that it is a violation of FCC rules for this device to be o perated on unauthorized frequencies inside the USA. We, E-Tech, acknowledge that this device will not be marketed to USA users with the frequency band which is not allowed by rule part as well. Pls note that Licensed End users shall not have an y access to external controls that will allow them to programme the equipment. Equipment programming is the responsibility of E-Tech approved service agents. Sincerely Yours, JongWoon Kim /Executive Director /E-Tech Co., Ltd. E-TECH Co., Ltd.

FCC ID : R72EP400 Report File No. : STROR-07-081 Page : 47 of 50 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Testing Korea Co., Ltd. 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.electrolab.kr.sgs.com Appendix B Photos of the EUT ● Front View of EUT ● Rear View of EUT FCC ID : R72EP400 Report File No. : STROR-07-081 Page : 48 of 50 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Testing Korea Co., Ltd. 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.electrolab.kr.sgs.com ● Top View of EUT ● Bottom View of EUT

FCC ID LABEL 1. FCC ID label drawing 2. FCC ID label location E-TECH Co., Ltd. Model : EP400 FCC ID : R72EP400 Made in Korea

FCC ID : R72EP400 Report File No. : STROR-07-081 Page : 49 of 50 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Testing Korea Co., Ltd. 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.electrolab.kr.sgs.com ● Inner View of EUT ● Top of Main-board FCC ID : R72EP400 Report File No. : STROR-07-081 Page : 50 of 50 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Testing Korea Co., Ltd. 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.electrolab.kr.sgs.com ● Bottom of Main-board

Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 1 / 50 SAR TEST REPORT Equipment Under Test : FM Handheld Transceiver Model No. : EP400 Applicant : E-TECH Co., Ltd. Address of Applicant : #403-901, Techno Park Complex, 193, Yakdae-dong Wonmi-gu, Bucheon-city, Kyunggi-do, 420-734, Korea FCC ID R72EP400 Device Category : Portable Device Exposure Category : Occupational/Controlled Exposure Date of Receipt : 2007-08-27 Date of Test(s) : 2007-10-02 Date of Issue : 2007-11-06 Max. SAR : 2.57 W/kg (Head 50% Duty Cycle) 5.05 W/kg (Body 50 % Duty Cycle) Standards: FCC OET Bulletin 65 supplement C IEEE 1528, 2003 ANSI/IEEE C95.1, C95.3 In the configuration tested, the EUT complied with the standards specified above. Remarks: Te s t e d b y : Leo Kim 2007-11-06 Approved by : Albert Lim 2007-11-06 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 distributed 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 SGS Testing Korea Co., Ltd. or testing done by SGS Testing Korea Co., Ltd. in connection with distribution or use of the product described in this report must be approved by SGS Testing Korea Co., Ltd. in writing. Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 2 / 50 Contents 1. General Information 1.1 Testing Laboratory........................................................................................... 3 1.2 Details of Applicant.......................................................................................... 3 1.3 Version of Report............................................................................................. 3 1.4 Description of EUT(s)....................................................................................... 3 1.5 Test Environment............................................................................................. 4 1.6 Operation description........................................................................................ 4 1.7 Evaluation procedures....................................................................................... 5 1.8 The SAR Measurement System............................................................................ 6 1.9 System Components.......................................................................................... 8 1.10 SAR System Verification.................................................................................... 9 1.11 Tissue Simulant Fluid for the Frequency Band.......................................................... 11 1.12 Test Standards and Limits.................................................................................. 12 2. Instruments List.................................................................................... 13 3. Summary of Results................................................................................ 14 APPENDIX A. Photographs of EUT & EUT’s Test Setup B. DASY4 SAR Report C. Uncertainty Analysis D. Calibration certificate Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 3 / 50 1. General Information 1.1 Testing Laboratory SGS Testing Korea Co., Ltd. Wireless Div. 2FL, 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea 435-040 Telephone : +82 +31 428 5700 FAX : +82 +31 427 2371 Homepage : www.electrolab.kr.sgs.com 1.2 Details of Applicant Manufacturer : E-TECH Co., Ltd. Address : #403-901, Techno Park Complex, 193, Yakdae-dong Wonmi-gu, Bucheon-city, Kyunggi-do, 420-734, Korea Contact Person : Jong-woon Kim Phone No. : 82-32-328-0611 Fax No. : 82-32-328-0612 1.3 Version of Report Version Number Date Revision 00 2007-10-04 Initial issue 01 2007-11-06 Revision 1 1.4 Description of EUT(s) EUT Type : FM Handheld Transceiver Model : EP400 Serial Number : N/A Mode of Operation : LMR Body worn Accessory : Belt Clip Tx Frequency Range : 403 MHz ~ 520 MHz Antenna :External Max. Conducted RF Power : 4.32 W Battery Type : DC 7.4V(Li-ion Battery) Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 4 / 50 1.5 Test Environment Ambient temperature : 22 ~ 23 ° C Tissue Simulating Liquid : 22 ~ 23 ° C Relative Humidity : 40 ~ 60 % 1.6 Operation Configuration Reference Positions for Handheld Radio Transmitters In general handheld radio transmitters like GMRS/FRS/LMR devices are used in held to face position or with a speaker/microphone combination as body-worn configuration. Held to face position For held to face position the flat section of a SAM Phantom or a flat phantom is used. The center of the radiating structure is to set on the middle position of the flat phantom. The distance between sample and flat phantom is 2.5 cm, similar to the real using. For the measurement head tissue simulating liquid is used. Belt Clip/Holster Configuration Test configurations for body-worn operated EUTs are carried out while the belt-clip and/or holster is attached to the EUT and placed against a flat phantom in a regular configuration. An EUT with a headset output it tested with a headset connected to the device. Body dielectric parameters are used. There are two categories for accessories for body-worn operation configurations: 1. accessories not containing metallic components 2. accessories containing metallic components. When the EUT is equipped with accessories not containing metallic components the tests are done with the accessory that dictates the closest spacing to the body. For accessories containing metallic parts a test with each one is implemented. If the multiple accessories share an identical metallic component (e.g. the same metallic belt-clip use…

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Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 40 / 50 -DAE Calibration Certificate Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 41 / 50 Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 42 / 50 Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 43 / 50 Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 44 / 50 Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 45 / 50 - 450 MHz Dipole Calibration Certificate Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 46 / 50 Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 47 / 50 Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 48 / 50 Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 49 / 50 Report File No. : STROS-07-017-A1 Date of Issue : 2007-11-06 Page : 50 / 50

FCC ID : R72EP400 Report File No. : STROR-07-081 Page : 1 of 50 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Testing Korea Co., Ltd. 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.electrolab.kr.sgs.com TEST REPORT OF FCC Part 90, Part 2 FCC ID : R72EP400 Equipment Under Test : FM Handheld Transceiver(UHF) Model No. : EP400 Serial No. : N/A Applicant : E-TECH Co., Ltd. Manufacturer : E-TECH Co., Ltd. Date of Test(s) : 2007-09-14 ~ 2007-09-28 Date of Issue : 2007-10-05 In the configuration tested, the EUT complied with the standards specified above. Te s t e d B y : Date 2007-10-05 Feel Jeong Approved By Date 2007-10-05 Denny Ham FCC ID : R72EP400 Report File No. : STROR-07-081 Page : 2 of 50 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Testing Korea Co., Ltd. 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.electrolab.kr.sgs.com INDEX TABLE OF CONTENTS Page 1. General Information ------------------------------------------------------------------------------ 3 2. Output Power Conducted-------------------------------------------------------------------------6 3. Radiated Spurious Emissions-------------------------------------------------------------------- 8 4. Conducted Spurious Emissions------------------------------------------------------------------15 5. Audio Frequency Response-----------------------------------------------------------------------28 6. Audio Low Pass Filter Frequency Response-------------------------------------------------- 30 7. Modulation Limited--------------------------------------------------------------------------------32 8. Occupied Bandwidth-------------------------------------------------------------------------------34 9. Frequency Stability---------------------------------------------------------------------------------37 10. Transient Frequency Behaviours of the Transmitter --------------------------------------39 Appendix A. Photo of Radiated Spurious Emissions Test Appendix B. Photos of the EUT FCC ID : R72EP400 Report File No. : STROR-07-081 Page : 3 of 50 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Testing Korea Co., Ltd. 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.electrolab.kr.sgs.com 1. General Information 1-1. Testing Laboratory SGS Testing Korea Co., Ltd. Wireless Div. 2FL, 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea 435-040 www.electrolab.kr.sgs.com Telephone : +82 +31 428 5700 FAX : +82 +31 427 2371 1-2. Details of Applicant Applicant : E-TECH Co., Ltd. Address : #403-901, Techno Park Complex, 193, Yakdae-dong, Wonmi-gu, Bucheon-city, Kyunggi-do, 420-734,Korea Contact Person : Jong-woon Kim Phone No. : 82-32-328-0661 Fax No. : 82-32-328-0612 1-3 Description of EUT Kind of Product FM Handheld Transceiver (UHF) Model Name EP400 Serial Number N/A Power Supply DC 7.4 V Frequency Range 403 MHz ~ 520 MHz Transmit Power 1W(Low), 4 W(High) Modulation Technique FM Number of Channels 255 Channels Operating Conditions -30 ~ 60 deg C Antenna Type Helical Antenna 1-4 Details of modification -N/A FCC ID : R72EP400 Report File No. : STROR-07-081 Page : 4 of 50 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Testing Korea Co., Ltd. 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.electrolab.kr.sgs.com 1-5. Test Equipment List EQUIPMENT MANUFACTURER MODEL CAL DUE. Signal Generator Agilent E4438C May 2008 Spectrum Analyzer Agilent E4440A May 2008 Spectrum Analyzer R&S FSP40 Jan. 2008 Audio Analyzer H.P. 8903B Dec.2007 Modulation Analyzer H.P. 8901B Dec.2007 DC Power Supply Agilent 6674A May 2008 Tem/Hum Chamber Han-Gil HGTP-4050 Oct.2007 Power Sensor Agilent E9327A May 2008 Power Meter Agilent 4416A May 2008 Attenuator Weincshel AZ3096 Dec.2007 Preamplifier Agilent 8449B May 2008 Preamplifier Agilent 8447F Jun.2008 Log-periodic Rohde & Schwarz UHALP9107 Jan.2009 Biconical Antenna Schwarzbeck VHA9103 Mar.2008 Horn Antenna Rohde & Schwarz HF906 Mar.2008 Signal Generator R&S SMR 20 Dec.2007 Horn Antenna R&S HF906 Aug.2008 Biconcai Antenna R&S HK116 May 2009 Log-Periodic Antenna R&S HL223 May 2009 Turn Table INN-CO CT 0800 N.C.R Antenna Mast INN-CO MA 2000 N.C.R Turn Device INN-CO FSM 230-M N.C.R Controller INN-CO CO 2000 N.C.R Anechoic Chamber SY Corporation 10m x 5m x 5m Feb. 2008 FCC ID : R72EP400 Report File No. : STROR-07-081 Page : 5 of 50 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Testing Korea Co., Ltd. 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.electrolab.kr.sgs.com 1.6 Summary of Test Results Description of Test FCC Rule Result Output Power Conducted 2.1046(a), 90.205 Complied Radiated Spurious Emissions 2.1053(a), 90.210 Complied Conducted Spurious Emissions 2.1051, 90.210 Complied Audio Frequency Response 2.1047(a) Complied Audio Low Pass Filter Frequency Response 2.1047(a) Complied Modulation Limiting 2.1047(b) Complied Occupied Bandwidth 2.1049, 90.210 Complied Frequency Stability 90.213, 2.1055 Complied Transient Frequency Behaviour of the Transmitter 90.214 Compl…

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FCC ID : R72EP400 Report File No. : STROR-07-081 Page : 46 of 50 The results shown in this test report refer only to the sample(s) tested unless otherwise stated. This test report cannot be reproduced, except in full, without prior written permission of the Company. SGS Testing Korea Co., Ltd. 18-34, Sanbon-dong, Gunpo-si, Gyeonggi-do, Korea, 435-040 Tel. +82 31 428 5700 / Fax. +82 31 427 2371 www.electrolab.kr.sgs.com Appendix A Photo of Radiated Spurious Emission Test