CWWP35XXEAMPLIFIER

User Manual Page 1 of 8 1. GENERAL DESCRIPTION 1.1. INTRODUCTION This manual contains installation and operating information for the Crescend High Power VHF Power Amplifier. The manual is organized into three sections as follows: Section 1. General Description Section 2. Installation Section 3. Operating Information 1.2. PRODUCT DESCRIPTION The Crescend Technologies High Power VHF RF power amplifier is designed for paging and other VHF applications that use a single carrier constant envelope waveform. The amplifier is designed to be powered from a 48 VDC source, but optionally incorporates an internal AC power supply. The amplifier covers a 150-174 MHz without retuning. Amplifier specifications are shown in Table 1-1. There are four input ranges available as shown in Table 1-2. Closed loop power control is used to maintain a constant output power under varying voltage, signal input level, frequency and output load conditions. Several design features work to protect the amplifier under adverse conditions. The amplifier is designed to fit into 5.25 inches (3RU) of vertical 19 inch rack space. The front panel includes LED indicators for monitoring status and alarm conditions. This information is also accessible via a monitor connector on the rear of the amplifier. The fan assembly draws ambient air in from the front and blows the air across the heat sink fins out the back of the amplifier. • Notice: The manufacturer’s rated output power of this equipment (see Table 1-1) is specified for single carrier operation using constant-envelope modulation. This equipment is NOT designed for multiple-carrier operation, nor is it intended to be used with non-constant envelope modulation types. Table 1-1. Amplifier Specifications Specification Value Instantaneous Bandwidth 150-174MHz Output Power 350W Input Impedance 50Ω Output Impedance 50Ω Table 1-2. Amplifier Input Power Ranges Input Power Designator Code Input Power Range Nominal Gain (350W Output) 5 5-10 W 18.5dB 10 10-20 W 15.5dB 20 20-50 W 12.4dB 50 50-100 W 8.5dB User Manual Page 2 of 8 2. INSTALLATION 2.1 INSTALLATION INSTRUCTIONS The amplifier is designed for installation in a rack that permits access to the rear of the rack for connection of DC power, RF, and monitor/control cables. The amplifier must have a minimum of 3 inches of open space in front and to the rear of the chassis to allow adequate air flow and ventilation. To install the amplifier proceed as follows: 1. Mount the amplifier in equipment rack and secure in place. 2. Connect a properly sized 50 ohm cable and load (antenna) to the RF OUT connector on rear of amplifier. 3. Connect the transceiver/exciter output to RF IN connector on rear of amplifier. 4. If monitoring of PA is desired, connect alarm cable to MONITOR connector on rear of amplifier module. See section 3 for more details about monitor pins. 5. Connect ground wire to ground stud on rear of amplifier if desired. 6. If unit is the 48 VDC version, measure primary DC input voltage of power supply. DC input voltage should be +48 +/- 0.5VDC. Turn off DC voltage. NOTE: • Make sure power supply DC is well filtered and well behaved with minimal voltage overshoot. • Keep DC wires as short as possible to minimize inductance induced voltage transients. • Size DC Wires properly to handle the load current to minimize voltage drop. WARNING: Turn off external primary DC power before connecting DC power cables. 7. Connect positive primary power wire (+48VDC) to terminal marked +48VDC and negative primary power wire to GND terminal next to it on rear of amplifier. 8. Check your work before applying DC voltage to the system. Make certain all connections are tight and the DC wires are going to the correct terminals. 9. If the unit has the optional power supply: Connect unpowered AC cord to AC plug on rear of amplifier. 10. Refer to Section 2.2 for initial start-up procedures. 2.2 INITIAL STARTUP To perform the initial start-up, proceed as follows: 1. Check to ensure that all input and output cables are properly connected and tightened. Note: Use high quality coaxial cable and connectors. Properly install all connectors for reliability. CAUTION: Before applying power, make sure that the input and output of the amplifier are properly terminated in 50 ohms. Do not operate the amplifier without a load attached. Refer to Table 1-1 for input power requirements. Excessive input power will damage the amplifier. NOTE: The output coaxial cable between the amplifier and antenna must be 50 ohm cable and adequately sized to handle the rated power level with additional stresses from high VSWR taken into account. User Manual Page 3 of 8 2. Apply 48 VDC from your power supply or AC mains power (depending on whether amplifier has optional power supply) to the amplifier with the supplied line cord. The fans will power on. Check that all four fans are running. 3. Visually check the indicators on the front of the amplifier and verify the following: a. The PWR ON indicator (green) is on. b. All other LED indicators (red and yellow) are off. 4. Set the external exciter power level so that it is within the specified input power range and apply the RF signal to the amplifier input port. The amplifier will deliver nominally 350W at the output connector. The green exciter drive status LED will illuminate when the RF drive is detected. This LED is meant to give the user a general indication that the exciter is active and is delivering output power when troubleshooting an alarm condition. However, it does not indicate that the minimum input power level has necessarily been reached. 5. Remove the RF input signal. The output power will drop to zero. Only the Power On indicator will be illuminated. Amplifier is ready for use. User Manual Page 4 of 8 3. OPERATING INFORMATION 3.1 INTRODUCTION This section contains general amplifier operating information 3.2 STATUS INDICATORS AND MONITOR CONNECTOR The amplifier status indicators and alarms are described in Tables 3-1 an…

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920 E. State Parkway • Schaumburg , IL 60173 Toll Free Number: (800) USA MADE (800 .87 2. 623 3) Pho ne: 847. 908 .54 00 • Fax: 847.90 8.5 40 8 www.crescendtech.com • E-mail: [email protected] August 4, 2012 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: CWWP35 XXE Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information acco mp any ing this app lication as outlined below: S chematic S chematic - Common P35 VHF-H. pdf S chematic - Final Board P35 VHF-H. pdf S chematic - Input Board P35 VHF-H. pdf S chematic - LED Board P35 VHF-H. pdf S chematic - LPF Boa rd P35 VHF-H. pdf S chematic - Output Board P35 VHF-H. pdf Block Diagram Block Diagram P35 VHF- H.pdf Parts List Semiconductor List P35 VHF-H. pdf Operational Description Description P35 VHF-H. pdf Tuning Procedure Test Procedure P35 VHF-H. pdf The above materials contain trade secrets and p rop rietary information not customarily released to the p ublic. The p ublic disclosure of these materials may be harmful to the app licant and p rovide unjustified benefits to its comp etitors. Pursuant to DA 04-1705 June 15, 2004 of the Commission’s p ublic notice, we also request temp orary confidential treatment of information acco mp any ing this app lication as outlined below: External/Internal Photos Photos P35 VHF- H.pdf User manual Users Manual P35 VHF-H.pdf Sincerely, James Hougo

PLACEMENT OF SERIAL NUMBER & INFO LABEL VIEW OF AMPLIFIER BACK PANEL WEIGHT: P1 P35-LABELS NONE SEE NOTES CRESCEND TECHNOLOGIES, LLC. MWR07/27/12 VHF AMP, BACK PANEL, LABEL PROPRIETARY AND CONFIDENTIAL THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF CRESCEND TECHNOLOGIES, LLC. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF CRESCEND TECHNOLOGIES IS PROHIBITED. COMMENTS: SHEET 1 OF 1 Q.A. MFG APPR. ENG APPR. CHECKED DRAWN DATE NAME DIMENSIONS ARE IN INCHES TOLERANCES: FRACTIONAL ANGULAR: MACH BEND TWO PLACE DECIMAL .01 THREE PLACE DECIMAL .005 NEXT ASMUSED ON APPLICATION DO NOT SCALE DRAWING FINISH MATERIAL REV. A DWG. NO. SIZE SCALE: 1:1 P35 140 E. STATE PARKWAY, SCHAUMBURG, IL 60173 REV DESCRIPTION BYDATE 07/27/12MWRINITIAL RELEASEP1 /10MWRRELEASED TO PRODUCTIONO - ---

Crescend Technologies SN: xxxxxxxxx Model: P35 Series VHF-H Pin: xx PN: xxxxxxxxxxxxx Pout: xx FCC ID: CWWP35XXE Freq: xx IC: 7291A – P35XXE Voltage: xx

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RF Exposure Report Page 1 of 3 RF Energy Exposure Awareness, Control Information, and Operational Instructions for Compliance with FCC RF Exposure Limits NOTICE: This power amplifier product is intended for use in environments in which personnel have full knowledge of their exposure and can exercise control over their exposure to meet FCC limits. This power amplifier is NOT authorized for use by the general population, consumer, or for use under conditions where unintended or accidental exposure may occur. This power amplifier product generates electromagnetic energy in the radio frequency (RF) spectrum to provide communications between users over a distance. RF energy is one specific form of electromagnetic energy. Other forms include, but are not limited to, sunlight and x-rays. RF energy, however, should not be confused with these other forms of electromagnetic energy, which when used improperly, can cause biological damage. Very high levels of x-rays, for example, can damage tissues and genetic material. Experts in science, engineering, medicine, health, and industry work with organizations to develop standards for safe exposure to RF energy. These standards provide recommended acceptable levels for personnel who may be exposed to RF energy. The RF exposure levels described therein include substantial margins of protection. When properly installed and used, Crescend power amplifier products meet all government- established RF exposure levels. In addition, Crescend recommends specific operating instructions for users of its power amplifier products. These instructions are important because they inform users about RF energy exposure and provide simple procedures on how to control it. Please refer to the following Web sites for more information on the nature of RF energy exposure and how to control your exposure to assure compliance with established RF exposure limits. http://www.fcc.gov/oet/rfsafety/rf-faqs.html http://www.osha.gov/SLTC/radiofrequencyradiation/index.html Federal Communication Commission Regulations The FCC rules require manufacturers to comply with the FCC RF energy exposure limits for communication devices before they can be marketed in the U.S. The FCC further requires users to be fully aware of and able to control their exposure to meet RF energy exposure limits. This document includes operating instructions and information required to control your RF exposure and to satisfy compliance requirements. RF Exposure Compliance, Control Guidelines and Operating Instructions To control exposure to yourself and others and to ensure compliance with the RF exposure limits, always adhere to the following guidelines. • Crescend power amplifier products are intended for use in fixed communication locations (e.g. base station sites). The antenna installation must comply with the following requirements to ensure optimum performance and compliance with the RF energy exposure limits required by the FCC. 1) The antenna should be mounted outside the site building on a roof, tower, or other support structure such that its location is inaccessible to personnel within the Minimum Permissible Exposure radius (see below). RF Exposure Report Page 2 of 3 2) The licensee must undertake the responsibility to manage the site in accordance the applicable regulatory requirements. This may include, but is not limited to, providing advisory notices to all personnel who may be exposed to RF energy in the vicinity of the antenna, restricting access to areas adjacent to the antenna, or ceasing use of the power amplifier when RF energy exposure safety cannot be guaranteed. • When the power amplifier is operating, a front panel LED will be illuminated. The power amplifier will be generating measureable RF energy exposure when transmitting. • The maximum permissible exposure (MPE) radius is unique to each base site installation and is based on several factors such as the transmitter power output level, antenna gain, feed line loss, etc. It is the responsibility of the licensee to determine the MPE for the base site installation. 1) For operation below 300 MHz, the maximum exposure limit is 0.2 mw/cm 2 . 2) An example calculation of the MPE radius for a 350 Watt VHF transmitter installation having a 5 dBi gain antenna and 1dB of feedline loss is provided below: 19.4feet 12 inches feet 232.9inches 2.54 R inches compliancefor required (cm) distance 591.5R S4π Gn)(Po R (numeric)gain 2.512Gn 10Gn (dB)gain antenna effective CL-G1G losscoax dB 1.0 CL dBi 5G1 cm mW 0.2 S dBiin gain 2.15 dBd G1 dBdin gain antenna 2.85 dBd MHz 174-150 f mWatts 350000 Po 10 G 2 == == == = = = = = =+= = == • • RF Exposure Report Page 3 of 3 3) In instances where the effective antenna gain (antenna gain – feedline loss) differs from the example above, the MPE radius must be calculated by the licensee. The table below presents the results of calculations of the MPE radius for a 350 Watt VHF transmitter having various effective antenna gain values. Effective Antenna Gain (dBi) Minimum Safe Distance (meters) Minimum Safe Distance (feet) 3.0 5.27 17.29 4.0 5.92 19.42 5.0 6.64 21.78 6.0 7.45 24.44 7.0 8.35 27.39 8.0 9.37 30.74 9.0 10.52 34.51 10.0 11.80 38.71 • Warning Failure to observe the minimum safe distance radius may result in exposure to RF radiated energy in excess of the FCC Maximum Permissible Exposure (MPE) limit. The licensee is responsible for the safe operation of the base site and must ensure that the Maximum Permissible Exposure limits are observed at all times.

FCC PT 90 AMPLIFIER AND IC RSS-131, RSS-GEN TEST REPORT APPLICANT CRESCEND TECHNOLOGIES, LLC ADDRESS 140 E. State Parkway SCHAUMBURG IL 60173 USA FCC ID CWWP35XXE IC LABEL 7291A-P35XXE MODEL NUMBER P35 Series VHF-H PRODUCT DESCRIPTION AMPLIFIER DATE SAMPLE RECEIVED 7/31/2012 DATE TESTED 8/20/2012 TESTED BY Nam Nguyen APPROVED BY Mario de Aranzeta TIMCO REPORT NO. 1905AUT12TestReport.doc TEST RESULTS PASS FAIL THE ATTACHED REPORT SHALL NOT BE REPRODUCED EXCEPT IN FULL WITHOUT THE WRITTEN APPROVAL OF TIMCO ENGINEERING, INC. 849 NW STATE ROAD 45 NEWBERRY, FL 32669 USA PH: 888.472.2424 OR 352.472.5500 FAX: 352.472.2030 EMAIL: [email protected] HTTP: //WWW.TIMCOENGR.COM Certificate # 0955-01 Applicant: CRESCEND TECHNOLOGIES, LLC FCC ID: CWWP35XXE IC: 7291A-P35XXE MODEL #: P35 Series VHF-H Report: C\CRESCEND_CWW\1905AUT12\1905AUT12TestReport.doc Page 2 of 16 TABLE OF CONTENTS ATTESTATION STATEMENT ............................................................................ 3 REPORT SUMMARY ........................................................................................ 4 TEST ENVIRONMENT AND TEST SETUP ......................................................... 4 DUT DESCRIPTION ......................................................................................... 5 TEST EQUIPMENT .......................................................................................... 6 TEST PROCEDURES ....................................................................................... 7 TEST RESULTS ............................................................................................... 9 RF POWER OUTPUT ............................................................................................................. 9 OCCUPIED BANDWIDTH .................................................................................................... 13 SPURIOUS EMISSIONS AT ANTENNA TERMINALS (CONDUCTED) ..................................... 14 FIELD STRENGTH OF SPURIOUS EMISSIONS (RADIATED) ................................................ 15 Applicant: CRESCEND TECHNOLOGIES, LLC FCC ID: CWWP35XXE IC: 7291A-P35XXE MODEL #: P35 Series VHF-H Report: C\CRESCEND_CWW\1905AUT12\1905AUT12TestReport.doc Page 3 of 16 ATTESTATION STATEMENT This equipment has been tested in accordance with the standards identified in the referenced test report. To the best of my knowledge and belief, these tests were performed using the measurement procedures described in this report. Test Certificate #0955-01 All instrumentation and accessories used to test products for compliance to the indicated standards are calibrated regularly in accordance with ISO 17025: 2005 requirements. I attest that the necessary measurements were made by me or under my supervision, at Timco Engineering, Inc. located at 849 N.W. State Road 45, Newberry, Florida 32669 USA. Authorized by: Mario de Aranzeta Signature: Function: Test Lab Supervisor / Engineer Date: August/21/2012 Applicant: CRESCEND TECHNOLOGIES, LLC FCC ID: CWWP35XXE IC: 7291A-P35XXE MODEL #: P35 Series VHF-H Report: C\CRESCEND_CWW\1905AUT12\1905AUT12TestReport.doc Page 4 of 16 REPORT SUMMARY Disclaimer The test results relate only to the items tested. Purpose of Test To show the DUT in compliance with FCC CFR 47, Part 90 and IC RSS-131 requirements for amplifiers Test Procedures ANSI/TIA 603-C: 2004 FCC CFR 47 Part 90 IC RSS-131 ANSI C63.4: 2003 Related Approval N/A TEST ENVIRONMENT AND TEST SETUP Test Facility Timco Engineering Inc. 849 NW State Road 45, Newberry, FL 32669 USA Laboratory Test Condition Temperature: 26ºC Relative humidity: 50%. Deviation from the standards No deviation Modification to the DUT No modification was made. Test Exercise (software etc.) The DUT was placed in continuous transmitting mode of operation. System Setup Stand alone device. Applicant: CRESCEND TECHNOLOGIES, LLC FCC ID: CWWP35XXE IC: 7291A-P35XXE MODEL #: P35 Series VHF-H Report: C\CRESCEND_CWW\1905AUT12\1905AUT12TestReport.doc Page 5 of 16 DUT DESCRIPTION Manufactured by CRESCEND TECHNOLOGIES, LLC Product Description AMPLIFIER FCC ID CWWP35XXE IC Label 7291A-P35XXE M/N P35 Series VHF-H Operating Freq 150-174 MHz Rated Output Power 350 Modulation Amplifier Test Item Preproduction Type of DUT Fixed Amplifier Applicant: CRESCEND TECHNOLOGIES, LLC FCC ID: CWWP35XXE IC: 7291A-P35XXE MODEL #: P35 Series VHF-H Report: C\CRESCEND_CWW\1905AUT12\1905AUT12TestReport.doc Page 6 of 16 TEST EQUIPMENT Device Manufacturer Model Serial Number Cal/Char Date Due Date 3-Meter Semi- Anechoic Chamber Panashield N/A N/A Listed 12/31/11 12/31/13 AC Voltmeter HP 400FL 2213A14499 CAL 6/12/11 6/12/13 Antenna: Active Loop ETS-Lindgren 6502 00062529 CAL 9/23/10 9/23/12 Frequency Counter HP 5385A 2730A03025 CAL 8/17/11 8/17/13 Hygro- Thermometer Extech 445703 0602 CAL 6/15/11 6/15/13 Modulation Analyzer HP 8901A 3435A06868 CAL 7/18/11 7/18/13 Digital Multimeter Fluke FLUKE-77 35053830 CAL 9/9/11 9/9/13 Power Meter Boonton Electronics 4531 11793 CAL 11/12/2010 11/12/2012 EMI Receiver Rohde & Schwarz ESIB40 100274 CAL 3/16/2012 3/16/2014 Analyzer Tan Tower Preamplifier HP 8449B-H02 3008A00372 CAL 10/28/11 10/28/13 Analyzer Tan Tower Quasi- Peak Adapter HP 85650A 3303A01690 CAL 10/28/11 10/28/13 Analyzer Tan Tower RF Preselector HP 85685A 3221A01400 CAL 10/28/11 10/28/13 Analyzer Tan Tower Spectrum Analyzer HP 8566B Opt 462 3138A07786 3144A20661 CAL 10/28/11 10/28/13 Temperature Chamber Tenney Engineering TTRC 11717-7 CHAR 2/22/12 2/22/13 Antenna ETS 3117 35923 12/7/2011 12/7/2013 Antenna Electro metrics LPA-25 1122 5/04/2011 5/04/2013 Antenna Electro metrics BIA-25 1096 5/04/2011 5/04/2013 Applicant: CRESCEND TECHNOLOGIES, LLC FCC ID: CWWP35XXE IC: 7291A-P35XXE MODEL #: P35 Series VHF-H Report: C\CRESCEND_CWW\1905AUT12\1905AUT12TestReport.doc Page 7 of 16 TEST PROCEDURES Power Line Conducted Interference The procedure used was ANSI 63.4-2003 using a 50uH LISN. Both lines were observed with the DUT transmitting. The bandwidth of the spe…

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