BEJCKTU9018-752.4GHz Cordless Key Telephone Unit

2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS The Wanderer TM Cordless Key Telephone Unit User Guide 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS Copyright © 1999 VODAVI Communications System, Inc. ALL Right Reserved This material is copyrighted by VODAVI Communications system. any unauthorized reproductions, use or disclosure of this material, or any part thereof, is Strictly prohibited and is a violation of the Copyright Laws of the United States ( 17 U.S.C. Section 101 et. Seq. ). VODAVI reserves the right to make changes in specifications at any time and without notice. The information furnished by VODAVI in this material is believed to be accurate and reliable, but is not warranted to be true in all cases. The Wanderer TM is a registered trademark of VODAVI Communications Systems, Inc. LIFE SUPPORT APPLICATIONS POLICYV VODAVI Communications Systems Product are not authorized for and should not be used within li fe Support applications. Life Support s ystems are equipment intended to support or sustain life and whose failure to perform when properly used in accordance with instructions provided can be reasonably expected to result in significant personal injury or death VODAVI Communications Systems warrant y is limited to replacement o f defective components and does not cover injury to persons or property or other consequential damage 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS Important Safety Instructions This symbol is to alert you to important operating or servicing instructions that may appear in the user’s manual. Always follow basic safety precautions when using this product to reduce the risk of injury, fire or electrical shock. When using your telephone equipment, basis safety precautions should always be followed to reduce the risk of life electric shock, and injury to persons, including the following : 1. Read and understand all instructions. 2. Follow all warnings and instructions marked on the product. 3. Use only with class 2 power source DC9V 500mA. 4. Unplug this product from the outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning. 5. Do not use this product near water, for example, near a bathtub, washbowl, kitchen sink, or Laundry tub in a wet Basement or near a swimming pool. 6. Do not place this product on an unstable cart, stand, or table. The product may fall, causing serious damage to the product. 7. Slots and openings in the cabinet and the back or bottom are provide for ventilation, to protect it from overheating. These openings should never be blocked or covered. the opening should never should never be placed near or over a radiator or heat register. This product should not be placed in a built in installation unless proper ventilation is provided. 8. Do not allow anything to rest on the power cord. Do not locate this product where the cord will be abused by animals or persons walking on it. 9. Do not overload wall outlets and extension cords as this can result in the risk of fire or electric shock 10. Never push objects of any kind into this product through cabinet slots as they may touch dangerous voltage points or short out parts that could result in a of fire or electric shock. Never spill liquid of any kind on the product. 11. To reduce the risk of electric shock, do not disassemble this product, but take it to a qualified service contractor when some service or removing covers may expose you to dangerous voltages or other risks. Incorrect reassembly can cause electric shock when the appliance is subsequently used. 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS 12. Unplug all cords and refer servicing to qualified service personnel under the following conditions : A. When the power supply cord or plug is damaged or frayed. B. If liquid has been spilled into the product. C. If the product has been exposed to rain or water. D. If the product does not operate normally by following the operating instruction. Adjust only those control that are covered by the operating instructions. Improper adjustments of other controls may result in damage and require work by a qualified technician to restore the product to normal operation. 13. Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of electric shock from lightning. 14. Do not use the telephone to report a gas leak in the vicinity of the leak. 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS Battery Cautionary Instructions To reduce the risk of fire or injury to persons, read and follow these instructions : 1. For the cordless handset, use only the type and size of batteries specified in the users manual - 3.6V 600mAh Nickel Metal Hydride (NI-MH) 2. Do not dispose of the batteries in a fire. The cells may explode. Check with local codes for possible special disposal instruction. 3. Do not open or mutilate the batteries. Released electrolyte is corrosive and may cause damage to the eyes or skin. It may be toxic if swallowed. 4. Exercise care in handling batteries in order not to short the battery with conducting material such as rings, bracelets and keys. The battery or conductor may overheat and cause burns. 5. Do not attempt to recharge the batteries provided with or identified for use with this product. The batteries may leak corrosive electrolyte or explode. 6. Do not attempt to rejuvenate the batteries provided with or identified for use this product by heating them. Sudden release of the battery electrolyte may occur, causing burns or irritation to eyes or skin. 7. When replacing batteries, all batteries should be replaced at the same time. Mixing fresh and discharged batteries could increase internal cell pressure and rupture the discharged batteries. 8. When inserting the batteries into this product, …

Text truncated - open the document above for the full version.

2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS Block Diagrams 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS CKTU-24 Base Block Diagram CKTU-24 Hand Block Diagram 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS CKTU-24 CODEC Block Diagram CKTU-24 RF Block Diagram

APPENDIX C - EUT EXTERNAL PHOTOGRAPHS EUT - Overall View Base - Top View Base - Bottom View Handset - Top View Handset - Back View Power Adapter - Top View

APPENDIX A - FCC PRODUCT LABELING AND WARNING STATEMENT FCC ID Label Specifications : Text is black or white in color and is left justified. Labels are silk- screened and shall be “permanently affixed” at a conspicuous location on the EUT. Proposed Label Location on EUT Bottom Side of Base/Proposed FCC ID Back Side of Handset/Proposed FCC ID

APPENDIX C - EUT INTERNAL PHOTOGRAPHS Base - Main Board Component View Base - Main Board Solder View Base - RF Board Component View Handset - Main Board Component View Handset - Main Board Solder View Handset - RF Board Component View

2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS LG Electronics Inc. 2.4GHz DSSS Digital Cordless Key Telephone Unit 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS General Description 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS √ 40 CHANNEL POSSIBLE IN THE 2403~2475 MHz BANDWIDTH. √ TRANSMISSION RANGE UP TO 700METERS IN FREE AREA, 200 METERS IN INHABITED AREA. LONGER RANGE THAN ANALOG 2400MHz CORDLESS TELEPHONE Basic Feature List D HIGH PERFORMANCECONEXANT CHIPSET D LONGER RANGE D 3 STAGE OUTPUT POWER SELECTABLE D BETTER VOICE QUALITY D 40 CHANNEL OPERATION D AUTO ANSWER ( When pick up the Handset during incoming ring ) D AUTO STAND-BY D ONE-WAY PAGE CALL D ADJUSTABLE RECEIVER VOLUME CONTROL D ADJUSTABLE RING VOLUME CONTROL D HEARING AID COMPATIBLE D CONFERENCE CALL SUPPORT : UP TO 8 PARTIES D FLASH FUNCTION SUPPORT D HANDSET MICROPHONE MUTEFUNCTION SUPPORT D HOLD FUNCTION SUPPORT D SPEED DIAL NUMBER SUPPORT D TRANSFER FUNCTION SUPPORT D REDIAL FUNCTION SUPPORT D 2LINES, 12 CHARACTERS LCD & LED DISPLAY D 16 MILLION AUTO-SECURITY CODE COMBINATION D AUDIBLE AND LCD DISPLAY OUT OF RANGE WARNING D AUDIBLE AND LCD DISPLAY LOW BATTERY WARNING D FLEXIBLE BUTTON ASSIGN : ONE OF THE 24 FLEXIBLE BUTTONS 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS Specification 1. REFERENCE SPECIFITION D Designed to conform to RF regulations FCC PART 68. PART 15. EIA 470B. D Designed to conform to SAFETY regulations UL D POWER : 9V DC 500mA CLASS 2 TRANSFORMER WALL ADAPTOR PROVIDED D NTERCONNECTION : MODULAR JACK CORD : DC JACK CORD PROVIDED D FCC PART 68 HEARING AID COMPLIANCE (12 dB spread ) D MICROPHONE NOMINAL GAIN RANGE : 3 0 dB D HAND SET VOLUME CONTROL RANGE : 12 dB 2. GENERAL SPECIFICATION D FREQUNCY BANDWIDTH : 2403 ~ 2475MHz BAND WIDTH D NUMBER OF CHANNEL : 40 CHANNELS D CHANNEL SPACE : 1 . 8 M H z D SPEECH CODER : 32Kbps ADPCM with parity D TYPE OF RF MODULATION : DBPSK MODULATION / DEMODULATION D TYPE OF LINE TRANSMIT/RECEIVE : AMI(Alternate Mark Inversion) LINE CODING D PROCESSING GAIN : 11dB D DATA RATE : 80Kbps Time Division Duplex D FRAME TIME : 1ms Transmit / 1ms Receive D SAMPLE RATE : 1.92M SAMPLES/S ( 2 SAMPLES / CHIP ) D TX POWER LEVELS : 100mW, 10mW, 1mW D RECEIVER SENSITIVITY : -102dBm, -82dBm D ADDTIONAL SECURITY : 2^24 SECURITY CODES D STANBY TIME : 21 days D TALK TIME : 4 hours D BATTERY CAPACITY : 3.6 V DC/600mAh (1.2V x 3) 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS 3. TELEPHONE SPECIFICATION D OFF - HOOK RESISTANCE : Max 300ohm (on 20mA LOOP CONDITION) D ON - HOOK IMPEDANCE : Min 15Kohm ( FREQ. 16Hz ~ 68Hz ) D RETURN LOSS : Min 11dB D FLASH TIME : 620ms +/- 10ms D ACOUSTIC LEVEL : TX -53 dB ≤ TOLR ≤ -40 dB RX 41 dB ≤ ROLR ≤ 51 dB ST 3 dB ≤ SOLR ≤ 99.9 dB D REDIAL : 24 DIGITS D HEARING AID COMPATIBLE RECEIVER UNIT 4. RF SPECIFICATION D POWER LINE CONDUCTED EMISSIONS : SECTION 15.207 PASSED (CLASS B REQUIREMENT) D BANDWIDTH : SECTION 15.247( a ) PASSED ( 700KHz > 500KHz ) D POWER OUTPUT : SECTION 15.247( b ) PASSED ( MAX 20dBm < 30dBm ) D SPURIOUS EMISSIONS(CONDUCTED) : SECTION 15.247( c ) PASSED AT BAND EDGES : 25.3dBc < 20dBc D SPURIOUS EMISSIONS(RADIATED) : SECTION 15.247( c ) PASSED PER SEC 15.209(30 - 960MHz) UP TO 10 th HARMONICS D P O W E R S P E C T R A L D E N S I T Y : SECTION 15.247( d ) PASSED (5.47dBm < 8dBm ) D P R O C E S S I N G G A I N SECTION 15.247( e ) PASSED (11.2dB > 10dB ) 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS Frequency Table 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS Channel Number and Frequency for 1.8MHz Channel Spacing Channel Number Channel Center Frequency (MHz) Channel Number Channel Center Frequency (MHz) 1 2404.8 21 2440.8 2 2406.6 22 2442.6 3 2408.4 23 2444.4 4 2410.2 24 2446.2 5 2412.0 25 2448.0 6 2413.8 26 2449.8 7 2415.6 27 2451.6 8 2417.4 28 2453.4 9 2419.2 29 2455.2 10 2412.0 30 2457.0 11 2422.8 31 2458.8 12 2424.6 32 2460.6 13 2426.4 33 2462.4 14 2428.2 34 2464.2 15 2430.0 35 2466.0 16 2431.8 36 2467.8 17 2433.6 37 2469.6 18 2435.4 38 2471.4 19 2437.2 39 2473.2 20 2439.0 40 2475.0 LG Electronics Inc. LGE LG R&D 533, Hogye-dong, Dongan-gu, Anyang-shi, Kyongki-do, 431-749, Korea Telephone : 82-31-450-4803~4 Fax : 82-31-450-4745 Solomon Sim / Approval Part Leader Enterprise Communication Lab. System Company / LG Electronics Inc. FCC ID : BEJCKTU9018-75 DIGITAL SECURITY CODE: The model(s) CKTU-24 has the circuitry for digital security code to provide protection against unintentional access. For each model, one of 16777216 kinds of digital security code is randomly selected and fixed in each telephone as it is manufactured.

2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS Schematics 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS CKTU-24 Base cordless 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS CKTU-24 Base system 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS CKTU-24 Hand 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS CKTU-24 Base RF Power AMP 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS CKTU-24 Base RF Power Transceiver 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS CKTU-24 Hand RF Power AMP 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS CKTU-24 Hand RF Power Transceiver

Note: This test report is specially limited to the above client company and the product model only. It may not be duplicated without prior written consent of Bay Area Compliance Laboratory Corporation. This report must not be used by the client to claim product endorsement by NVLAP or any agency of the U.S. Government. FCC PART 15 Subpart C EMI MEASUREMENT AND TEST REPORT For LG Electronics, Inc. LG Kangseo B/D, 36, Munlae-Dong, 6-Ga, Youngdungpo-Gu, Seoul, 150-096, Korea FCC ID: BEJCKTU9018-75 April 12, 2002 This Report Concerns: Original Report Equipment Type: 2.4GHz Digital Cordless Telephone System - Household Appliances Test Engineer: Benjamin Jin Report Number: R0203256 Test Date: March 26, 2002 Reviewed By: John Y. Chan - Engineering Manager Prepared By: Bay Area Compliance Laboratory Corporation 230 Commercial Street Sunnyvale, CA 94085 Tel: (408) 732-9162 Fax: (408) 732 9164 LG Electronics, Inc. FCC ID: BEJCKTU9018-75 Report # R0203256 Page 2 of 37 FCC Part 15.247 Test Report TABLE OF CONTENTS 1 - GENERAL INFORMATION..................................................................................................................................4 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..............................................................................4 1.2 OBJECTIVE.............................................................................................................................................................4 1.3 RELATED SUBMITTAL(S)/GRANT(S).......................................................................................................................4 1.4 TEST METHODOLOGY............................................................................................................................................4 1.5 TEST FACILITY.......................................................................................................................................................4 1.6 TEST EQUIPMENT LIST...........................................................................................................................................5 1.8 POWER SUPPLY AND LINE FILTERS OF EUT...........................................................................................................5 1.9 EXTERNAL I/O CABLING LIST AND DETAILS.........................................................................................................5 2 - SYSTEM TEST CONFIGURATION.....................................................................................................................6 2.1 DESCRIPTION OF TEST CONFIGURATION................................................................................................................6 2.2 EQUIPMENT MODIFICATIONS.................................................................................................................................6 2.3 CONFIGURATION OF TEST SYSTEM.........................................................................................................................7 2.4 TEST SETUP BLOCK DIAGRAM...............................................................................................................................7 3 - SUMMARY OF TEST RESULTS..........................................................................................................................8 4 - CONDUCTED OUTPUT POWER MEASUREMENT........................................................................................9 4.1 STANDARD APPLICABLE........................................................................................................................................9 4.2 MEASUREMENT PROCEDURE..................................................................................................................................9 4.3 MEASUREMENT RESULT........................................................................................................................................9 5 - 6 DB BANDWIDTH...............................................................................................................................................12 5.1 STANDARD APPLICABLE......................................................................................................................................12 5.2 MEASUREMENT PROCEDURE................................................................................................................................12 5.3 MEASUREMENT DATA..........................................................................................................................................12 6 - SPURIOUS EMISSION.........................................................................................................................................15 6.1 STANDARD APPLICABLE......................................................................................................................................15 6.2 MEASUREMENT PROCEDURE................................................................................................................................15 6.3 MEASUREMENT DATA..........................................................................................................................................15 7 - 100 KHZ BANDWIDTH OF BAND EDGES MEASUREMENT......................................................................22 7.1 STANDARD APPLICABLE......................................................................................................................................22 7.2 MEASUREMENT PROCEDURE................................................................................................................................22 7.3 TEST RESULTS.....................................................................................................................................................22 8 - POWER DENSITY ................................................................................................................................................25…

Text truncated - open the document above for the full version.

2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS Processing Gain Measurement 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS Processing Gain Measurements for CKTU-24 1. Scope This document details the results of measurement of the processing gain of a DCT CKTU-24 phone with reference to the Code of Federal Regulations, Title 47, Chapter 1, Part 15 Radio Frequency Devices (FCC). FCC Federal Communications Commission SNR Signal to Noise Ratio JSR Jammer to Signal Ratio CW Continuous wave (jammer) HS Handset BS Base station DBPSK Differential Binary Phase Shift Keying Table 1. Abbreviations 2. An Overview of the Processing Gain Processing Gain Calculation Theoretical processing gain limit for the 12bit Spreading BPSK system is 10.8dB. Processing Gain Measurement Method Following method is specified by the FCC to measure processing gain. The detailed are in FCC documents 15.247 (e)(1). This involves transmitting a CW jammer in the RF passband of the system and measuring the jammer to signal ratio (JSR) required to achieve a certain bit error rate. The choice of the actual value of the bit error rate is left up to the tester. The jammer is stepped in 50 kHz increments across the entire passband and in each case the JSR to achieve the desired bit error rate is measured. The JSR is measured at the RF input to the system under test. The lowest 20% of the JSR data (in dB) are discarded. The processing gain can then be calculated as follows: - system measuredtheory p L S J N S G+       +       = where G p is the processing gain, the SNR is that theoretically predicted for the system under the test to achieve the desired bit error rate, the JSR is the lowest value (in dB) in the remaining data set and L sys 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS adjusts for non-ideal system losses. L sys can not be greater than 2 dB. 3. Processing Gain Measurement Test Setup The following parameters were used in the test setup. HS Tx power (dBm) -1.9 BS LNA gain (dB) 0 Channel attenuation (dB) -50 Test system losses (signal) (dB) -11.75 -4.05 dB (system), -6 dB (signal combiner), -1.7 dB (2 cables) Test system losses (jammer) (dB) -12.85 -12 dB (signal combiner), -0.85 dB (cable) Table 2. Test Setup Parameters Signal Combiner -6 dB cable (-0.85 dB) RF Attenuator (-50 dB) cable (-0.85 dB) RF Signal generator (HP8663A) -12 dB cable (-0.85 dB) additional system loss (-4.05 dB) (voice signal only) 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS 4. Results & Calculation The following measurement results were taken at the base station. The desired bit error rate was set at 10 -3 . Jammer Frequency (MHz) BER (BS) Received jamme r power (dBm) Received signal power (dBm) Jammer/Signal ratio (dB) 2404.8 9.4 × 10 -4 -59.55 -63.65 4.1 2406.6 9.6 ×10 -4 -57.95 -63.65 5.7 2408.4 9.6 ×10 -4 -60.15 -63.65 3.5 2410.2 9.6 × 10 -4 -64.25 -63.65 -0.6 2412.0 1.1 ×10 -3 -61.55 -63.65 2.1 2413.8 9.8 × 10 -4 -61.55 -63.65 2.1 2415.6 1.1 ×10 -3 -61.95 -63.65 1.7 2417.4 9.2 ×10 -4 -62.85 -63.65 0.8 2419.2 1.0 × 10 -3 -59.85 -63.65 3.8 2412.0 1.0 ×10 -3 -61.15 -63.65 2.5 2422.8 1.1 × 10 -3 -62.05 -63.65 1.6 2424.6 1.0 ×10 -3 -57.65 -63.65 6.0 2426.4 1.1 ×10 -3 -55.65 -63.65 8.0 2428.2 1.0 × 10 -3 -49.35 -63.65 14.3 2430.0 1.1 ×10 -3 -59.25 -63.65 4.4 2431.8 1.0 × 10 -3 -62.35 -63.65 1.3 2433.6 9.7 ×10 -4 -59.05 -63.65 4.6 2435.4 1.0 ×10 -3 -61.05 -63.65 2.6 2437.2 1.1 × 10 -3 -62.55 -63.65 1.1 2439.0 9.0 ×10 -4 -61.95 -63.65 1.7 Table 3-1. Test Results (1Ch~20Ch) 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS Jammer Frequency (MHz) BER (BS) Received jamme r power (dBm) Received signal power (dBm) Jammer/Signal ratio (dB) 2440.8 1.0×10 -3 -61.05 -63.65 2.6 2442.6 9.9×10 -4 -62.35 -63.65 1.3 2444.4 1.1 × 10 -3 -64.05 -63.65 -0.4 2446.2 9.2×10 -4 -56.25 -63.65 7.4 2448.0 1.0×10 -3 -59.85 -63.65 3.8 2449.8 1.1 × 10 -3 -57.25 -63.65 6.4 2451.6 9.9×10 -4 -58.15 -63.65 5.5 2453.4 9.6 × 10 -4 -57.95 -63.65 5.7 2455.2 9.6×10 -4 -64.25 -63.65 -0.6 2457.0 1.1×10 -3 -61.55 -63.65 2.1 2458.8 9.2 × 10 -4 -62.85 -63.65 0.8 2460.6 1.0×10 -3 -61.15 -63.65 2.5 2462.4 1.0 × 10 -3 -57.65 -63.65 6.0 2464.2 1.0×10 -3 -49.35 -63.65 14.3 2466.0 1.0×10 -3 -62.35 -63.65 1.3 2467.8 1.0 × 10 -3 -61.05 -63.65 2.6 2469.6 9.0×10 -4 -61.95 -63.65 1.7 2471.4 1.0 × 10 -3 -61.05 -63.65 2.6 2473.2 1.1×10 -3 -64.05 -63.65 -0.4 2475.0 1.0×10 -3 -59.85 -63.65 3.8 Table 3-2. Test Results (21Ch~40Ch) 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS For DBPSK at 10 -3 bit error rate the required SNR is 8.0 dB. Using the results above and the dat a in the table below the processing gain is calculated to be 11.3 dB. required SNR (dB) 8.0 system losses (dB) 2.0 J/S ratio at 80% point (dB) 1.30 FCC Processing gain (dB) 11.3 Table 4. Processing Gain Calculation data Conclusions The result measured for processing gain of 11.3 dB is close to the actual processing gain due to a 12 chip spreading code of 10 × log 10 (12) = 10.8 dB 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS FCC Test Support Program Application Note 2.4GHz DIGITAL CORDLESS KEY TELEPHONE UNIT MODEL : CKTU-24 USA VERSION LG ELECTRONICS Equipment Required: A PC with two COMM ports FCC Test Support Program 2 RS232 Adapter Boards Unit-Under-Test (UUT) - Handset or Base station or both Installing the FCC Test Support Program onto the PC : Create a subdirectory and copy the self-extracting zip files, FCC3_3d1.exe and FCC3_3d2.exe , into a subdirectory on the PC. Execute these two .exe files to unzip the FCC Test Support Program files. Run setup.exe to install all the necessary files into the PC to run the visual basic program. This will create an executable file, FCCv3_3.exe. RS232 Adapter Boards: Two Adapter boards will be needed to provide an int…

Text truncated - open the document above for the full version.

APPENDIX B - CONDUCTED AND RADIATED SETUP PHOTOGRAPHS Base Conducted Emission Setup Photograph - Front View Base Conducted Emission Setup Photograph - Rear View Base Radiated Emission Setup Photograph - Front View Radiated Emission Setup Photograph - Rear View Handset Radiated Emission Setup - Front View Handset Radiated Emission Setup - Rear View