BCR-RPT-MR853DBooster

Andrew Corporation Model: MR853D Power Back-Off Description After the final amplifiers, in both the uplink and downlink paths, a power detection circuit measures the output power and produces an analog voltage representative of the output power. The power detect voltage is compared to reference voltage through a comparator circuit to adjust the gain of the device. When the measured voltage reaches the maximum limit, the gain of the device is reduced to limit the output power. This feature is the automatic level control (ALC) and keeps intermodulation and spurious emissions below the limits of –13 dBm.

Tune-Up Procedure The first step in setting up the MR853D is to set the frequency of the single stage SAW filter. Two rotary switches are used to set the start frequency of the SAW filter and the step size of the frequency adjustment is 200 kHz. The next step is to set the appropriate attenuation of the MR853D to provide the desired output power. There are two methods of setting the attenuation: manually or automatically. In manual mode, the user would measure the input signals and set the attenuation of the MR853D to provide the desired output power. ALC is always functioning and the maximum output power of the MR853D will never be exceeded. In automatic mode, the MR853D will adjust gain in the downlink path to maximize output power, but no exceed the maximum ALC limit. The uplink gain will be set to the downlink gain.

Nemko Test Report: 6L0012RUS1Rev1 Applicant: Andrew Corporation 108 Rand Park Drive Garner, NC 27529 Equipment Under Test: MR853D (E.U.T.) In Accordance With: FCC Part 22, Subpart H Cellular Band Repeaters Tested By: Nemko USA Inc. 802 N. Kealy Lewisville, TX 75057-3136 Authorized By: Kevin Rose Wireless Engineer Date: January 27, 2006 Nemko USA, Inc. FCC PART 22, SUBPART H CELLULAR BAND REPEATERS EQUIPMENT: MR853D Test Report No.: 6L0012RUS1Rev1 2 of 65 Table of Contents SECTION 1. SUMMARY OF TEST RESULTS ...............................................................................................3 SECTION 2. GENERAL EQUIPMENT SPECIFICATION............................................................................5 SECTION 3. RF POWER OUTPUT ..................................................................................................................7 SECTION 4. OCCUPIED BANDWIDTH..........................................................................................................8 SECTION 5. SPURIOUS EMISSIONS AT ANTENNA TERMINALS........................................................23 SECTION 6. FIELD STRENGTH OF SPURIOUS ........................................................................................42 SECTION 7 OUT OF BAND REJECTION.....................................................................................................44 SECTION 8. TEST EQUIPMENT LIST..........................................................................................................45 ANNEX A - TEST DETAILS ...............................................................................................................................50 ANNEX B - TEST DIAGRAMS ..........................................................................................................................59 Nemko USA, Inc. FCC PART 22, SUBPART H CELLULAR BAND REPEATERS EQUIPMENT: MR853D Test Report No.: 6L0012RUS1Rev1 3 of 65 Section 1. Summary of Test Results Manufacturer: Andrew Corporation Model No.: MR853D Serial No.: None General: All measurements are traceable to national standards. These tests were conducted on a sample of the equipment for the purpose of demonstrating compliance with FCC Part 22, Subpart H. New Submission Production Unit Class II Permissive Change Pre-Production Unit THIS TEST REPORT RELATES ONLY TO THE ITEM(S) TESTED. THE FOLLOWING DEVIATIONS FROM, ADDITIONS TO, OR EXCLUSIONS FROM THE TEST SPECIFICATIONS HAVE BEEN MADE. See “ Summary of Test Data”. Nemko USA Inc. authorizes the above named company to reproduce this report provided it is reproduced in its entirety and for use by the company’s employees only. Any use which a third party makes of this report, or any reliance on or decisions to be made based on it, are the responsibility of such third parties. Nemko USA Inc. accepts no responsibility for damages, if any, suffered by any third party as a result of decisions made or actions based on this report. This report applies only to the items tested. Nemko USA, Inc. FCC PART 22, SUBPART H CELLULAR BAND REPEATERS EQUIPMENT: MR853D Test Report No.: 6L0012RUS1Rev1 4 of 65 Summary Of Test Data NAME OF TEST PARA. NO. SPEC. RESULT RF Power Output 22.913(a) 500W ERP Complies Occupied Bandwidth (Input/Output) None None Complies Spurious Emissions at Antenna Terminals 22.917 -13 dBm Complies Field Strength of Spurious Emissions 22.917 -13 dBm E.R.P. Complies Frequency Stability 22.355 1.5 ppm NA Out of band rejection Not Specified Not Specified Tested Footnotes : Input level was adjusted for maximum RF input level for all tests. Measurement uncertainty for each test configuration is expressed to 95% probability. . Nemko USA, Inc. FCC PART 22, SUBPART H CELLULAR BAND REPEATERS EQUIPMENT: MR853D Test Report No.: 6L0012RUS1Rev1 5 of 65 Section 2. General Equipment Specification Supply Voltage Input: 120 Vac Frequency Range : Downlink: Analog 869.04 TO 893.97 MHz CDMA 869.7 to 893.31 MHz EDGE 869.2 to 893.8 MHz GSM 869.2 to 893.8 MHz TDMA 869.04 to 893.97 MHz W-CDMA 871.5 to 887.5 MHz Frequency Range: Uplink: Analog 824.04 to 848.97 MHz CDMA 824.7 to 848.31 MHz EDGE 824.2 to 848.8 MHz GSM 824.2 to 848.8 MHz TDMA 824.04 to 848.97 MHz W-CDMA 826.5 to 842.5 MHz Nominal Passband: 1.5, 10, 12.5 or 25 MHz Type of Modulation: Analog TDMA CDMA GSM W-CDMA EDGE Designator: (F8W/F1D) (DXW) (F9W) (GXW)(F9W) (G7W) Output Impedance: 50 ohms Gain: 60 dB RF Output (Rated): 18 Output Power per Carrier, dBm Technology 1 2 4 8 CDMA 16 13 10 7 EDGE 18 15 12 9 GSM 18 15 12 9 W-CDMA 11 8 5 2 Analog 18 15 12 9 TDMA 18 15 12 9 Frequency Translation: F1-F1 F1-F2 N/A Band Selection: Software Selector Switch Full band Coverage Nemko USA, Inc. FCC PART 22, SUBPART H CELLULAR BAND REPEATERS EQUIPMENT: MR853D Test Report No.: 6L0012RUS1Rev1 6 of 65 Description of Operation System Diagram The MR853D band selective mini repeater is a bi-directional amplifier used to enhance signals between a mobile and base station in a wireless network. Nemko USA, Inc. FCC PART 22, SUBPART H CELLULAR BAND REPEATERS EQUIPMENT: MR853D Test Report No.: 6L0012RUS1Rev1 7 of 65 Section 3. RF Power Output NAME OF TEST: RF Power Output PARA. NO.: 22.913(a) TESTED BY: David Light DATE: 18 January 2006 Test Results: Complies. Test Data: Modulation Type Per Channel Power Output (dBm) Composite Power Output (dBm) Uplink AMPS 15 18 Downlink AMPS 15 18 Uplink CDMA 13 16 Downlink CDMA 13 16 Uplink GSM 15 18 Downlink GSM 15 18 Uplink NADC 15 18 Downlink NADC 15 18 Uplink EDGE 15 18 Downlink EDGE 15 18 Uplink W-CDMA 8 11 Downlink W-CDMA 8 11 Equipment Used: 1036-1472-1081-1464 Measurement Uncertainty: +/- 1.6dB Temperature: 22 °C Relative Humidity: 40 % Note – The amplifier was tested on three channels (hi-mid-lo). Center channel data presented is representative of all channels tested. The input level was set for all tests was set 60 dB below the output level +/- 1 dB. Nemko USA, Inc. FCC PART 22, SUBPART H CELLULAR BAND REPEATERS EQUIPMENT: MR853D Test…

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