Broadcast Microwave Services HCII-5-7 2 GHz RF Power Amplifier User Manual

Broadcast Microwave Services Inc 2 GHz RF Power Amplifier

user manual

BPA-5CC-7 1.99–2.5 GHz 5W Power Amplifier Installation and Operation Manual Doc #6051407907 Rev - Broadcast Microwave Services, Inc. 12367 Crosthwaite Circle Poway, CA 92064 Tel: +1 (858) 391-3050 | Toll-free (US): 800-669-9667 Fax: +1 (858) 391-3049 support@bms-inc.com bms-inc.com
© 2008 All rights reserved. Broadcast Microwave Services, Inc. Specifications are subject to change without prior notice. This document contains confidential information and is intended for customer use only. It cannot be duplicated without prior authorization from BMS.
BPA-5CC-7 1.99–2.5GHz 5W Power Amplifier Manual | Doc #6051407907 Rev - Broadcast Microwave Services, Inc. i WARNING! RF RADIATION EXPOSURE HAZARD • This warning is provided by Broadcast Microwave Services (BMS) Inc. for safety purpose. • The following information help to reduce the risk of RF exposure hazard. FCC Limit of RF Exposure According to the Federal Communication Commission (FCC), the Maximum Permissible Exposure (MPE) for RF radiation has been set to 1.0 mW/cm2 for the 1.99–2.5GHz linear power amplifier with maximum of 5 watts output power (OET Bulletin 65) for operation under part 90 of FCC regulations (47CFR90). The 1.99–2.5GHz power amplifier (PA) may be a part of a non-broadcast transmitter, and without an antenna it will not create RF exposure (power density) exceeding the 1.0 mW/cm2 FCC limit. However, a high-gain antenna such as a parabolic dish will greatly enhance the PA output power density beyond the MPE limit of 1.0 mW/cm2. In this situation a minimum distance from the antenna must be calculated in order to keep the MPE always below the safety limit. The calculation has been done for the PA based on the formula mentioned in OET Bulletin 56. The calculations have been done for different commonly used antenna in the BAS and Public Safety/Law enforcement applications. Figure 1 shows the plot of the minimum exposure distance for 5dBi, 16dBi, and 30dBi antennas, assuming the PA transmits the maximum power of 5 W. The minimum exposure distances are found from the cross points of the exposure graphs (for various antennas) with the line of maximum permissible exposure (i.e. 1mW/cm2). Notice that the numbers in Figure 1 predict the worse case scenario, which is straight in front of the antenna (exposing the antenna’s main lobe). Obviously the side-lobe exposures are well below these numbers as the radiation intensity drops dramatically on the side lobes. The antenna used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The user and installer must provide suitable operating procedures and warnings to meet MPE requirements when operating the PA into an antenna. Operational Limits and User Access CAUTION! • Do not 5A peak load in optional accessory equipment! • Do not exceed -12dBm average input power! NOTE There are NO user adjustable components in the amplifier!
BPA-5CC-7 1.99–2.5GHz 5W Power Amplifier Manual | Doc #6051407907 Rev - Broadcast Microwave Services, Inc. ii Contents 1 Product Description...........................................................................................................................1 1.1 RF Exposure ............................................................................................................................1 1.2 Linear Power Amplifier (BPA-5CC-7) Description.....................................................................2 1.3 Specifications ...........................................................................................................................3 1.4 Applications ..............................................................................................................................3 2 Installation ..........................................................................................................................................5 2.1 Installation Notes and Wiring Diagram .....................................................................................5 3 Warranty..............................................................................................................................................8 3.1 Customer Service and Contact Information..............................................................................8 4 Appendix.............................................................................................................................................9 4.1 Labels.......................................................................................................................................9 List of Figures Figure 1. Estimated RF exposure................................................................................................................1 Figure 2. Parts locations..............................................................................................................................2 Figure 3. External view................................................................................................................................2 Figure 4. Typical application block diagram.................................................................................................4 Figure 5. Typical application........................................................................................................................4 Figure 6. Pin-out for PTO connector, MS3112E14-5P.................................................................................5 Figure 7. PA wiring diagram ........................................................................................................................6 Figure 8. PA chassis footprint......................................................................................................................6 Figure 9. PA chassis dimensions.................................................................................................................7 Figure 10. BMS product label ......................................................................................................................9 Figure 11. FCC label ...................................................................................................................................9
BPA-5CC-7 1.99–2.5GHz 5W Power Amplifier Manual | Doc #6051407907 Rev - Broadcast Microwave Services, Inc. 1 1 Product Description 1.1 RF Exposure In order the keep the RF exposure within the FCC limit, it is necessary to maintain the safe distance from the antenna. The results shown in Figure 1 can be summarized in the following table: Antenna Gain (dBi) Minimum permissible distance from antenna (cm) 5 45 16 125 30 626 Notice the above table indicates worst-case situation (straight in front of the antenna). Figure 1. Estimated RF exposure
BPA-5CC-7 1.99–2.5GHz 5W Power Amplifier Manual | Doc #6051407907 Rev - Broadcast Microwave Services, Inc. 2 1.2 Linear Power Amplifier (BPA-5CC-7) Description The BPA-5CC-7 is a linear power amplifier suitable for OFDM with 5W maximum RF power and operates at 1.99GHz to 2.4835GHz. This PA is used for increasing transmission range by boosting a 2GHz transmitter’s power to 5W maximum. The PA may be used from 1.99 to 2.50GHz for non-US applications or for special grandfathered frequency allocations. Figure 2. Parts locations Figure 3. External view RF Output DC Voltage RF InputFansProduct LabelFCC Label
BPA-5CC-7 1.99–2.5GHz 5W Power Amplifier Manual | Doc #6051407907 Rev - Broadcast Microwave Services, Inc. 3 1.3 Specifications Frequency 1.99 – 2.50 GHz * Output Power 5W max. Input Voltage 28 VDC Input Current 5 to 6 Amp @ 28VDC Input RF Power -12 dBm max. Gain @ -12 dBm input 52 dB Gain Flatness ± 1.0 dB over 500 MHz Gain vs. Temperature ± 1 dB over temperature Operating Temperature -20° to +50°C Storage Temperature 40° to +90°C Dimensions 9.5” x 5” x 3” Weight 8 lbs RF Input Connector Type “N” RF Output Connector Type “N” Isolator Protected * FCC certification for 2.45–2.4835GHz under Part 90 This product supports the following Emission Designators: FCC ID Modulation Emission Designators CNVHCII-5-7 Digital 6M0W7D, 7M0W7D, 8M0W7D Operation under FCC rule part: 74, 90 1.4 Applications Portable digital video COFDM transmitters, such as the BMS 2GHz CarryCoder II, are used behind the camera in security and law enforcement live video transmission. These transmitters can only provide a medium RF power (e.g. < 1W), limiting the distance between the event site and relay station. To extend the transmission range, an external amplifier is needed to boost the transmitter power in order to compensate the path loss and ensure the acceptable Received Signal Level (RSL) at the destination. The BPA-5CC-7 will increase the RF power to the maximum 5W without adding spurious signals and distortions to the transmitter output. The power amplifier output is directly connected to the 2GHz transmitting antenna. A typical transmitter application of the 1.99–2.5GHz power amplifier is shown in Figure 5. A practical application is shown in Figure 6. The output of the PA is directed to the transmitting antenna located on the roof of a mobile vehicle. The receiver antenna can be located on a mast to result in better coverage over longer distance.
BPA-5CC-7 1.99–2.5GHz 5W Power Amplifier Manual | Doc #6051407907 Rev - Broadcast Microwave Services, Inc. 4 Figure 4. Typical application block diagram Figure 5. Typical application
BPA-5CC-7 1.99–2.5GHz 5W Power Amplifier Manual | Doc #6051407907 Rev - Broadcast Microwave Services, Inc. 5 2 Installation 2.1 Installation Notes and Wiring Diagram The power amplifier is wired to accessory equipment according to the pin-out and wiring diagrams in Figure 6 and Figure 7. Chassis dimensions are provided in Figure 8 and Figure 9. Be aware of the following critical installation points: 1. 28V breaker should handle 15A to 20A surge, 8A average, and 0.8 joules in-rush to charge the input capacitor. 2. Accessory +12Vout is internally fused at 5A. CAUTION! • Do not 5A peak load in optional accessory equipment! NOTE There are NO user adjustable components in the amplifier! 3. Output power is proportional to input power. Do not exceed the PA’s rated output power for OFDM. CAUTION! • Do not exceed -12dBm average input power! 4. The PTO connector pin-out is as follows. See Figure 6. Pin A = +28VDC input Pin B = +12V fused output Pin C = 28 VDC Return Pin D = 12 VDC Return Pin E = Power ON/OFF control DEBCA Figure 6. Pin-out for PTO connector, MS3112E14-5P
BPA-5CC-7 1.99–2.5GHz 5W Power Amplifier Manual | Doc #6051407907 Rev - Broadcast Microwave Services, Inc. 6 Figure 7. PA wiring diagram 5. The PA’s mounting footprint and envelope are shown in Figure 8 and Figure 9. Figure 8. PA chassis footprint
BPA-5CC-7 1.99–2.5GHz 5W Power Amplifier Manual | Doc #6051407907 Rev - Broadcast Microwave Services, Inc. 7 Figure 9. PA chassis dimensions
BPA-5CC-7 1.99–2.5GHz 5W Power Amplifier Manual | Doc #6051407907 Rev - Broadcast Microwave Services, Inc. 8 3 Warranty BMS warrants that, at time of delivery, the product will be free from defects in materials and workmanship, provided the equipment or system is installed, operated and maintained in accordance with the Operation and Maintenance manual or such other BMS documentation as may be applicable. Any such defect reported to BMS within two years, BMS will take reasonable and prompt action to repair or replace such equipment. Should any of the components be defective, please contact BMS immediately. Please have the following information available so we can best serve you. • customer name • contract number • BMS model number • serial number • detailed description of problem • name of contact person. • contact information such as phone number and/or email address. • return information Much of this information is printed on the equipment’s product label. Defective components under BMS warranty will be repaired/replaced promptly at the discretion of BMS. A PO is required BEFORE repairs can begin on items no longer under warranty. Note: All goods returned for service require an RMA number. Any goods received without an RMA number may not be processed in a timely manner. Please contact BMS for an RMA number. 3.1 Customer Service and Contact Information Broadcast Microwave Services, Inc. 12367 Crosthwaite Circle Poway, CA 92064 Tel: +1 (858) 391-3050 | Toll-free (US): 800-669-9667 | Fax: +1 (858) 391-3049 sales@bms-inc.com | www.bms-inc.com Please send feedback on this and other BMS manuals to techpubs@bms-inc.com.
BPA-5CC-7 1.99–2.5GHz 5W Power Amplifier Manual | Doc #6051407907 Rev - Broadcast Microwave Services, Inc. 9 4 Appendix 4.1 Labels The following label diagrams are included in this appendix for reference. Figure 10. BMS product label Figure 11. FCC label

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