
Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.
P8XXJK1 and P8XXL1 Power Amplifier User’s Manual 1. General Information. Power Amplifier (PA) is the C-class unit. It is intended for amplification of single carrier phase (frequency) modulated (manipulated) narrowband signals. Working frequency range lies between 764 MHz and 870 MHz for JK unit (P8XXJK1) and between 890 MHz and 942 MHz for LW unit (P8XXL1). Code “xx” shows the input power range: Code: R1 R2 R5 1 2 5 10 20 Range, W: 0.1-0.2 0.2-0.5 0.5-1.0 1.0-2.0 2.0-5.0 5.0-10 10-20 20-50 In the normal operating mode the minimum output power is 80 W for JK and 80 W for L unit. Input VSWR is not greater than 1.7:1. PA meets all FCC requirements to harmonic and spurious levels. The nominal power supply voltage is 13.8VDC. DC current consumption does not exceed 24A at 13.8V Working ambient temperature range lies from -30 ºC to +60ºC. Input and output power levels are set up in the factory. Customer has an opportunity to reduce the output power, adjusting the special trimmer resistor in the unit, or picking up the value of outer resistor, connected to PA control pin. PA has automatic power control loop that provides the stability of output power during the normal operation and all necessary changes of power in the case of load mismatch or unit overheating. PA is intended for rack mounting in the standard 19” cabinet. The front panel is 7” high. The deepness of unit does not exceed 5”. Four LED at the front panel indicate the status of unit operation. The hole in the side wall gives an access to the trimmer resistor, which allows reducing the output power against the set value. There are two N connectors at the back of chassis. There is power filtering DC connector at the back of chassis with # 6-32 screws. There are 3 filters at the back of chassis that bring alarming signal, as well signals for the outside power control. Two fans at the back side of unit perform the forced air cooling. Fans start rotating, when RF signal comes to the unit input. 2. Installation Guide. 2.1. Unit installation shall provide a proper air access to the unit; no obstacle for air is allowed closer than 3” from fans. 2.2. Copper wires # 10 AWG shall be use in DC power line. Wires shall be crimped to ring terminals. 3. Operation Guide 3.1. Power supply voltage shall be in the range 13.8 V + 1.0 V. 3.2. The input power inside the working frequency range shall be within the listed above limits. It is prohibit applying any RF signal out of the working frequency range with a power, greater than 10% of the minimum rated one. 3.3. Green LED “DC ON” is on, when DC voltage is applied to the unit. 3.4. Red LED “LOW POWER” is on, when the output power drops below 80% - 85% of set level. In majority of cases it warns about of inside problem. However, the output power may fail due to high load VSWR (in that case LED tells that the power decrease is stronger, then it is needed for VSWR protection). 3.5. Red LED “HIGH VSWR” is on, when the load VSWR exceeds 2.4 – 3. The output power is reduced. 3.6. Red LED “HIGH TEMP” is on, when the heatsink temperature is over +85 ̊C. Then the unit operates with output power, reduced to about 75% of rated one. Fans are running continuously, no matter, is RF drive applied or not. 3.7. Voltage at filter “ALARM” is about 9.5V during the normal unit operation and drops to less than 0.5V, when any of mentioned above red LED goes on. If 1.8 kOhm resistor is connected between this filter and the ground, TTL compatible output is created. 3.8. It is possible to significantly reduce the output power, pulling filter “SH/D” to the ground. However, it is possible to change the output power smoothly by a trimmer resistor (50 kOhm is the recommended value of it), connected between this pin and the ground. 3.9. The output power drops to about 75% of rated level, if the filter “CTRL” is pulled to the ground.
Exterior – Front Exterior – Rear Exterior - Side
Place of Label
Amplifier Photos Interior Top Side – All PCBs Note: With the exception of the controller and indicator boards, all other boards have a ground plane on the back side (no traces or components). Bottom Side – Controller Board. Bottom Side – Indicator Board.
2/17/2011 Page 1 of 3 FCCID: WT7 FCC RF Exposure Requirements General information : Device category: Fixed per Part 2.1091/1.1307/1.1310 Environment: Uncontrolled Exposure Fixed devices that operate under Part 90 of this chapter are subject to routine environmental evaluation for RF exposure prior to equipment authorization or use if they operate at frequencies of 1.5 GHz or below and their effective radiated power (ERP) is 1.5 watts or more. Compliance with the power density limits of 1.1310 is required. Antenna: The manufacturer does not specify an antenna. A typical fix mounted antenna has a gain of anywhere from 0 dBi to 5 dBi. This device has provisions for operation from fixed mounted locations. Configuration Antenna p/n Type Max. Gain (dBi) Fixed mounted Any omni or directional 0 – 5 Operating configuration and exposure conditions: The conducted output power is 80 Watts. Typical use qualifies for a maximum duty cycle factor of 50%. The manufacturer also markets this device only for occupation use. However control of exposure is uncontrollable. So uncontrolled exposure is used. - Part 2.1091 states that devices are excluded from routine evaluation if the EIRP is less than 2.46Watt (or 1.5WERP). - Fixed operation: A typical installation consists of an antenna system with a coaxial cable of the type RG 8U which has a loss of 2 dB for a length of 30 feet at 800 MHz. frequencies. MPE Calculation : The minimum separation distance is calculated as follows: The limit for uncontrolled exposure environment above 300 MHz is f/1500 mW/cm 2 . 2/17/2011 Page 2 of 3 FCCID: WT7 Frequency: 764 MHz The conducted power output is: 80 Watts. The coax loss was taken as 2 dB: 30 ft RG-8 type. Antenna gain was taken as: 5 dBi 50% talk time 2/17/2011 Page 3 of 3 FCCID: WT7 Conclusion: Since the antenna systems used with this amplifier are fixed mounted on permanent structures this implies a separation distance greater than what the calculations show. In this case the calculations show that with a typical system consisting of the described construction above a general population exposure limit of 112 cm (44 inches) would be required. Proposed RF exposure safety information to include in User’s Manual : “FCC RF Exposure Requirements: See Users Manual
FCC PT 90 AMPLIFIER AND IC RSS-131, RSS-GEN TEST REPORT APPLICANT CRESCEND TECHNOLOGIES, LLC ADDRESS 920 EAST STATE PARKWAY SCHAUMBURG IL 60173 USA FCC ID CWWP8XXJK1 IC LABEL 7291A-P8XXJK1 MODEL NUMBER P8 SERIES 700/800 PRODUCT DESCRIPTION Amplifier DATE SAMPLE RECEIVED 6/14/2010 DATE TESTED 7/23/2010 TESTED BY Sushant Kadimdivan APPROVED BY Mario de Aranzeta TIMCO REPORT NO. 1421AUT10TestReport.pdf 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 Technolgoies LLC FCC ID: CWWP8XXJK1 IC: 7291A-P8XXJK1 MODEL #: P8 SERIES 700/800 Report: Z:\C\CRESCEND_CWW\1421AT10\1421AT10TestReport Page 2 of 18 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 .................................................................................................... 14 SPURIOUS EMISSIONS AT ANTENNA TERMINALS (CONDUCTED) ..................................... 16 FIELD STRENGTH OF SPURIOUS EMISSIONS (RADIATED) ................................................ 17 POWER LINE CONDUCTED INTERFERENCE ..................................................................... 18 Applicant: Crescend Technolgoies LLC FCC ID: CWWP8XXJK1 IC: 7291A-P8XXJK1 MODEL #: P8 SERIES 700/800 Report: Z:\C\CRESCEND_CWW\1421AT10\1421AT10TestReport Page 3 of 18 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: February /11/2011 Applicant: Crescend Technolgoies LLC FCC ID: CWWP8XXJK1 IC: 7291A-P8XXJK1 MODEL #: P8 SERIES 700/800 Report: Z:\C\CRESCEND_CWW\1421AT10\1421AT10TestReport Page 4 of 18 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 All tests were conducted by Timco Engineering Inc. located at 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 Technolgoies LLC FCC ID: CWWP8XXJK1 IC: 7291A-P8XXJK1 MODEL #: P8 SERIES 700/800 Report: Z:\C\CRESCEND_CWW\1421AT10\1421AT10TestReport Page 5 of 18 DUT DESCRIPTION Manufactured by Crescend Technologies, LLC Product Description Amplifier FCC ID CWWP8XXJK1 IC Label 7291A-P8XXJK1 M/N P8 SERIES 700/800 Max. Output Power 80W Modulation N/A - Amplifier Power Source 13.8 VDC DC Power Test Item Preproduction Type of DUT Fixed/Mobile Amplifier Applicant: Crescend Technolgoies LLC FCC ID: CWWP8XXJK1 IC: 7291A-P8XXJK1 MODEL #: P8 SERIES 700/800 Report: Z:\C\CRESCEND_CWW\1421AT10\1421AT10TestReport Page 6 of 18 TEST EQUIPMENT Device Manufacturer Model Serial Number Cal/Char Date Due Date 3-Meter Semi- Anechoic Chamber Panashield N/A N/A Listed 3/10/10 3/10/12 AC Voltmeter HP 400FL 2213A14499 CAL 3/23/09 3/23/11 Antenna: Dipole Kit Electro- Metrics TDA-30/1-4 153 CHAR 6/10/09 6/10/11 Frequency Counter HP 5385A 3242A07460 CAL 5/26/09 5/26/11 Hygro- Thermometer Extech 445703 0602 CAL 1/30/09 1/30/11 Modulation Analyzer HP 8901A 3435A06868 CAL 5/26/09 5/26/11 Digital Multimeter Fluke FLUKE-77-3 79510405 CAL 5/18/09 5/18/11 Analyzer Tan Tower Preamplifier HP 8449B-H02 3008A00372 CAL 11/21/09 11/21/11 Analyzer Tan Tower Quasi- Peak Adapter HP 85650A 3303A01690 CAL 11/22/09 11/22/11 Analyzer Tan Tower RF Preselector HP 85685A 3221A01400 CAL 11/21/09 11/21/11 Analyzer Tan Tower Spectrum Analyzer HP 8566B Opt 462 3138A07786 3144A20661 CAL 11/24/09 11/24/11 Temperature Chamber Tenney Engineering TTRC 11717-7 CHAR 4/25/10 4/25/12 Applicant: Crescend Technolgoies LLC FCC ID: CWWP8XXJK1 IC: 7291A-P8XXJK1 MODEL #: P8 SERIES 700/800 Report: Z:\C\CRESCEND_CWW\1421AT10\1421AT10TestReport Page 7 of 18 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 spectrum analyzer was 10 kHz with an appropriate sweep speed. RF Power Output The RF power output was measured a…
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| # | Rule Parts | Frequency Range | Power Output | Emission | Tolerance |
|---|---|---|---|---|---|
| 4 | 9 | 851 MHz - 869 MHz | 80 W | NOTE 1 | Amp |

Power Amplifier AB to C Class
Equipment Class
B2I - Part 20 Industrial Booster (CMRS)
VHF AMPLIFIER
Equipment Class
B9B - Part 90 Class B Industrial Booster (non-SMR)
HIGH BAND HIGH POWER AMPLIFIER
Equipment Class
B9A - Part 90 Class A Industrial Booster (non-SMR)
LOW BAND HIGH POWER AMPLIFIER
Equipment Class
B9A - Part 90 Class A Industrial Booster (non-SMR)
25Watt One-Way Amplifier
Equipment Class
AMP - Amplifier