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SS6ISC-T5540Non Broadcast Transmitter

ISC Technologies Inc
Non Broadcast Transmitter - FCC ID SS6ISC-T5540 - ISC Technologies Inc
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Application Details

Equipment Class
TNB - Licensed Non-Broadcast Station Transmitter
Date of Grant
May 10, 2005
Application Purpose
Original Equipment
Date of Application
May 10, 2005
Equipment Note
Non Broadcast Transmitter
Frequency Range
406.00000000 - 470.00000000
Company
ISC Technologies Inc
Country
United States

Documents & Files

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Users Manual

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Cover Letter(s)

External Photos

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ID Label/Location Info

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Internal Photos

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Operational Description

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Parts List/Tune Up Info

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Test Report

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Users Manual

Copyright 2005 ISC Technologies 9T97A250 450-MHz Power Amplifier User Manual 9110.00118 REVB Copyright 2005 ISC Technologies Table of Contents 1 GENERAL 2 RESERVED 3 DESCRIPTION 3.1 Front Panel Display and Alarms 3.2 Features 3.3 Physical Description 4 P. A. CIRCUIT AND LOGIC CIRCUIT DESCRIPTIONS... 4.1 Power Amplifier Circuit Description 4.2 Logic Circuit Description 5 INSTALLATION 5.1 Overview 5.2 Cabinet Installation 5.3 Operating and Servicing Hazards 5.4 Checks and Adjustments 5.5 Equipment Needed 6 ADJUSTMENTS 6.1 Power Amplifier Alignment and Tuning 6.2 Logic Alignment Copyright 2005 ISC Technologies 1 GENERAL This manual is intended for use by experienced technicians familiar with RF communication systems. It contains all the necessary information required to align, install, interface, and operate the 9T97A250 UHF Power Amplifier. Any questions regarding the equipment or this manual should be directed to Customer Ser- vice. ISC Technologies One Glenayre Way Ste. 2 Quincy, IL 62301 Phone: (217) 221-0985 Fax: (217) 221-9775 2. Reserved 3 DESCRIPTION The 9T97A250 UHF power amplifier is designed for FM operation in the 406 to 470 MHz band. The RF power output is continuously adjustable from 50 watts to 250 watts when driven by a 4-watt source. The RF input and output connectors are the type N panel mount (UG-58 AN) and are mounted on the rear of the power amplifier. Input dc power is fed to the power amplifier through a two-terminal barrier strip on the rear of the power amplifier. A 15-pin D-connector (for monitoring the power amplifier’s operating condition using its associated test set) is mounted near the barrier strip. Forced air circulation is through the front panel, using an internally controlled dc fan. The power amplifier is self-protected against overheating and mismatched load conditions (including open and short circuit conditions). DANGER ! RF power transistors and RF termination resistors contain beryllium oxide. Beryllium oxide fumes ARE TOXIC! No treatment should be attempted without proper precautions. Disposal via public waste is strictly forbidden! 3.1 Front Panel Display and Alarms Power Output Bar-Graph Indicates relative output power in ten levels (red). RF Input LED Indicates RF input power is applied (green). High VSWR LED Indicates an alarm due to high reflection at the output (red). High Temperature LED Indicates an alarm due to over heating (red). Power On LED Indicates that the dc supply is applied to the power amplifier (green). Copyright 2005 ISC Technologies 3.2 Features The 9T97A250 power amplifier has the features listed below. • Adjustable power output. • Continuous operation. • Mounts on a 19-inch standard EIA rack panel. • Self-resetting protection circuitry. • Modular construction. • Status and power output display. • Easy access to amplifiers and protection circuitry for adjustment. • Independent fusing of each final module and the driver with open fuse indicator on the rear panel. 3.3 Physical Description The 9T97A250 UHF power amplifier is rack panel mountable (19-inch). Front and rear covers are removable to gain access to all controls without removing the 9T97A250 from the rack. The front panel display consists of a red LED bar-graph display showing output power. Two red and two green status LEDs are also located on the front panel. The rear panel consists of an RF input connector, an RF output connector, a DB-15 connector, and a two-terminal barrier strip for dc power connections. 4 P. A. CIRCUIT AND LOGIC CIRCUIT DESCRIPTIONS 4.1 Power Amplifier Circuit Description 4.1.1 General The RF input, which is sampled by the alarm logic, is amplified by the RF power driver. The driver’s net RF power output is varied by adjusting the dc voltage supply. The driver’s power output is split into four parts which become the input power to each final. Each final amplifies this input power and the output from the finals are combined and filtered. The alarm logic samples both the output forward power and reflected power. 4.1.2 Driver The driver module has two functions. Its primary function is to provide a variable power input to the final power amplifier module, so that the net output power of the final amplifier can be adjusted. The second function is to provide a sampling point for the alarm logic at the input power point to the power amplifier. The driver uses a MOS-FET transistor (Q1) with two dies in one package, operated in push-pull configuration. R2 and R3 provide zero bias at the gates of Q1 for class C operation. T1 and T2 are 1:1 balun transformers. Capacitor C4 at the input of the driver is adjusted to fine tune the input match to 50 ohms, thereby minimizing input standing wave reflection. Capacitor C16 couples a small amount of input power through diodes D1 and D2. This dc voltage, which is proportional to the RF input, is fed to the alarm logic. The rectified RF at the anode of D1 is smoothed by capacitor C17 and loaded by resistor R1. The main part of the RF input goes through T1, C2, C3, Z1 and Z2 and capacitors C1, C4 and C5 match the transistor’s input impedance across the frequency band. Power (3-5 Vdc) is fed via a “fast-on” tab to the drains of transistor Q1. Matching of the transistor’s output impedance across the frequency band is provided by Z3, Z4, C6. C7 and C10. Capacitors C5 and C9 are for dc blocking. Copyright 2005 ISC Technologies 4.1.3 Splitter The splitter consists of three splitters to provide a four-way divider. Each splitter is a ninety degree hybrid and a 50-ohm load. A ninety degree hybrid is a length of wire line in this case. The length is determined by the frequency band of the power amplifier. The wireline is a form of semi-rigid 50-ohm coax that has two center conductors insulated from each other. Within the useable bandwidth, each hybrid splits the RF power into approximately two equal parts that differ in phase by about ninety degrees. As the split and phase differ, some power is dissipated in the load resistors…

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External Photos

Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] External EUT Photographs FCC ID: SS6ISC-T5540 Front of EUT (2 amplifiers, 2 Exciters and 2 power supplies) Rear of EUT Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] Exciter Exciter Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] Amplifier Amplifier

ID Label/Location Info

Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] ID Label/Location FCC ID: SS6ISC-T5540 • Material to be Alum Foil • Text to be Black with White Background • Permanent Adhesive • Size to be 1.5 x 1.75 Drawing of label Placement of Label SS6ISC-T5540 ID Label Placement

Internal Photos

Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] Internal EUT Photographs FCC ID: SS6ISC-T5540 2000.02090 DSP Exciter Control Board (covers removed) Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] 2000.00189 Exciter VCO/RF Amp Board (covers removed) Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] 2000.00436 Exciter I20 Interface Board Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] 2630082036 Exciter Standard Interface Board Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] 2630304014 4 Watt Amplifier Assembly Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] 140.0791/2000.00220 97 Series Logic Board Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] 2630100504 RF Driver Assembly Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] 2610100003 Quad RF Splitter Assembly (less chassis mounted resistors) Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] 140.0891 RF Final Amplifier Assembly Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] 2630100011 Quad RF Combiner Assembly (less chassis mounted resistors) Authorized Agent: Radiometrics Midwest Corporation (815) 293-0772 – [email protected] 140.0785 Low Pass Filter/Directional Coupler Assembly

Operational Description

Radiometrics Midwest Corporation (815) 293-0772 – [email protected] Operational Description FCC ID: SS6ISC-T5540 The following is an overview of the paging transmitter: 1.1 ISC-T5540 General Description The ISC-T5540 is a 50-250 watt transmitter consisting of a DSP exciter assembly, 4-watt amplifier assembly, and a 250-watt power amplifier assembly. The transmitter is capable of operating in the range of 406 to 470 MHz. 1.2 Exciter Interface There are two types of exciter interface boards that allow connections to two different types of transmitter control equipment. The first type is referred to as the I20 interface and allows connection to the GL-C2000 for transmitter controller. The exciter equipped with this type interface is capable of digital modulation only. The second interface type is the Standard Interface, which allows connection to a variety of external control equipment. This interface provides both an analog and a digital modulation path. 1.3 ISC-T5540 Clock Frequencies All clock signals are contained within the DSP Exciter assembly and are identified as follows: 1. 10 MHz. Reference Oscillator. This signal provides clocking to various logic devices including the digital quadrature modulator ADSP2105 and Modulator DSP ADSP2101. 2. 16.38 MHz. This signal is the clock for the 68HC11 host processor. 3. I20 Option only. 8MHz. clock for a 68HC711 processor. 4. Standard Interface Option Only: 1.25 MHz. clock. 1.4 Emissions desiginators: Approval is sought for both 25kHz. and 12.5kHz. channel bandwidths. Emissions designators follow: F3E – analog voice modulation. (25 kHz Channels only) F1D – data modulation(FSK). (12.5 and 25 kHz Channel Bandwidths) F2D – data modulation using a modulated subcarrier (modem tones) (12.5 and 25 kHz Channel Bandwidths). 25kHz. Channel bandwidth – emissions designator 16k0F3E F3E – 3kHz. is the highest modulating frequency, 5kHz. is the deviation limit. Bn=2(M) + 2(D) Bn=2(3) + 2(5) Bn=16 25kHz. Channel bandwidth – emissions designator 16k0F2D Radiometrics Midwest Corporation (815) 293-0772 – [email protected] F2D – 3kHz. is the highest modulating frequency, 5kHz. is the deviation limit. Bn=2(M) + 2(D) Bn=2(3) + 2(5) Bn=16 25kHz. Channel bandwidth – 14k4F1D Highest data rate for two level modulation is 4800bps. 4800 bps represents a highest modulating frequency of 2400Hz. 4.8kHz. is the highest possible digital deviation. Bn=2(2400) + 2(4800) Bn=4800 + 9600 Bn= 14400 Note: 1 symbol=1 dibit= 2 bits. This results in a 4800 bps maximum data rate using 2 level FSK and 9600bps using 4 level FSK. 12.5kHz. Channel bandwidth – 9k6F1D Highest data rate is 4800 symbols per second. This represents a highest modulating frequency of 2400Hz. 2.4kHz. is the highest possible digital deviation. Bn=2(2400) + 2(2400) Bn=4800 + 4800 Bn= 9600 Note: 1 symbol=1 dibit= 2 bits. This results in a 4800 bps maximum data rate using 2 level FSK and 9600bps using 4 level FSK.

Parts List/Tune Up Info

SS6ISC-T5540 RF Active Device List PA module Each PA module uses a single amplification stage (Q1) that is a GHz Technology UMIL80 transistor, ISC part number 5033.00062 Driver Module The Driver uses a FET amplifier (Q1) that is a POLYFET F1008, ISC part number 5034.00078. 4 Watt Module The 4 watt module uses a single amplifier stage (U2) as follows: 406-450 MHz. Misubishi M57721M-01, ISC part number 5700.00055 450-470 MHz. Mitsubishi M57721-01, ISC part number 5700.00049. Exciter RF Amp/VCO The VCO consists of transistors Q13 and Q14, NEC NE85633, ISC part number 5031.00031. The amplifier circuitry consists of the following stages: Q2 and Q8, Avantek MSA0886, ISC part number 5031.00023. Q4, Avantek MSA1105, ISC part number 5031.00025. Q3, Advanced Semiconductor MRF581, ISC part number 5011.00007. 10 MHz Reference Oscillator: ISOTEMP P/N 6624.00002

Parts List/Tune Up Info

Copyright 2005 ISC Technologies 6 ADJUSTMENTS 6.1 Power Amplifier Alignment and Tuning 6.1.1 Why You Need to Tune The 9T97A250 RF power amplifier is factory adjusted at the desired frequency. If the fre- quency of operation has to be changed by more than 2 MHz away from the previous fre- quency, then the following adjustments should be made. This is to ensure the power am- plifier’s optimum performance and increase the life of the RF power transistors. 6.1.2 Equipment Needed The following tools and equipment will be required to properly align the 9T97A250 RF power amplifier. • Directional wattmeter, 50 ohms, 5-watts full scale, 5% accuracy. • Directional watimeter, 50 ohms, 250-watts full scale, 5% accuracy. • 50-ohm termination 250 W. • Tuning tool, slot, insulated. • DC ammeter: 25 A full scale, 2.5% accuracy. • Cables with appropriate connectors. • Test set: M-97. 6.1.3 Exciter Check . 1. Switch ON the power supply and key the exciter. Check that the output power is 4.0 watts +/- 0.2 watts. 2. If the power output is not within this range, switch OFF the power supply and replace the exciter. 6.1.4 Power Amplifier Adjustments 1. Switch ON the power supply and key the exciter. 2. Adjust C12 on the first final for maximum power. 3. Record the current reading of this final from the M-97 test set. 4. Increase the capacitance of C12 on the first final until the power drops by 2 watts from the maximum power peak. 5. Check that the current reading has decreased on the M-97 test set. 6. Repeat steps 2 to 6 for the second final. 7. Repeat steps 2 to 6 for the third final. 8. Repeat steps 2 to 6 for the fourth final. Copyright 2005 ISC Technologies 9. Adjust C4 on the driver module for minimum reflected power from the power amplifier back to the exciter. 10. Adjust C2 or C3 (depending upon the band) on each final power amplifier module for maximum output power. 11. Adjust R52 (HIGH PWR ADJ) on the logic board for 250 watts of output power. 12. Repeat steps 3 to 11 until tuning does not effect the output power of the power ampli- fier. 13. Check that the total dc current draw for the power amplifier is less than 21 A on the dc ammeter, and the M-97 test set current reading for the final modules is less than 20. 14. Adjust R52 (HIGH PWR ADJ ) for the desired output power level. 15. Switch OFF the power supply, disassemble the test equipment, and connect the exciter and power amplifier in its normal configuration. 6.2 Logic Alignment 6.2.1 Equipment The following tools and equipment will be required to properly align the 9T97A250 RF power amplifier. • Directional wattmeter, 50 ohms, 250 watts full scale, 5% accuracy. • Directional wattmeter, 50 ohms, 5 watts full scale, 5% accuracy. • 50-ohm termination 250 W. • 10 Vdc minimum voltmeter. • Two jumpers, 0.1 spacing (GL 270-0501). • DC ammeter: 25 A full scale, 2.5% accuracy. • 3 dB attenuator, 5 watt minimum. • Test set: M-97. 6.2.2 Low and High Power Adjust 1. Remove JR26 or JR27 (which ever is installed) to inhibit power auto shutdown. 2. Switch the M-97 test set to low, power, or connect pin 12 to pin 15 of the DB15 connector, or install JR29. 3. Switch ON the power and key the exciter. 4. Adjust R53 (LOW PWR ADJ) on the logic board until the desired LOW power output is obtained. 5. If the LOW power setting is not required, turn R53 fully counter clockwise. Note Rotating R53 (LOW PWR ADJ) clockwise, increases output power. 6. Switch the M-97 test set to “HIGH” power, or disconnect pin 12 from pin 15 of the DB15 connector, or remove JR29 if installed. Turn R52 (HIGH PWR ADJ) on the logic board until the power amplifier’s forward output power is about 225 watts. Copyright 2005 ISC Technologies 7. Turn R48 (BAR GRAPH ADJ) on the logic board so that 100% LED D11 of the bar graph,just lights up. 8. Turn R52 (HIGH PWR ADJ) on the logic board until the desired HIGH power output is obtained, 9. Switch OFF the power and install a 3 dB attenuator between the exciter and the power amplifier. Switch ON the power again and key the exciter. 10. Turn R50 (RF IN LEVEL SET) on the logic board until the RF IN LED D8, just lights up. 11. Install JR28 and verify that LED D8 still turns on. Turn R50 if necessary, until D8 (RF IN LED) just turns on, then remove JR28. 12. Switch OFF the power, and remove the 3 dB attenuator installed between the exciter and the power amplifier. 13. Install either JR26 or JR27 to enable the power auto shutdown to either NO POWER or LOW POWER respectively. 14. Switch ON the power, key the exciter, and connect a 10 Vdc voltmeter to test point TP4 (P 13-1) on the logic board. Turn R51 (TEMP ALARM SET) until the voltage reads 3.0 Vdc. 15. Unkey the exciter and remove the voltmeter. Caution The low RF alarm trip point is set by one of jumpers JR12 to JR21. This is set to 20% with jumper JR20 at the factory. You may increase this setting in 10% steps from 100% to 10% by installing a jumper at one of the JR positions. The 100% position is jumper JR12, and the 10%position is JR21. WARNING DO NOT install more than one alarm trip point jumper at any time, or else the display driver will be damaged. 16. Switch OFF the power. 17. Install JR26 or JR27 (which ever was installed previously). 18. Disassemble the test equipment, and connect the exciter and power amplifier in its normal configuration.

Test Report

Radiometrics Midwest Corporation (815) 293-0772 – www.radiomet.com Page 1 of 43 Electromagnetic Compatibility Test Report Tests Performed on an ISC Technologies, Inc Paging Transmitter, Model ISC-T5540 Radiometrics Document RP-5511 Product Detail: FCC ID: SS6ISC-T5540 Equipment type: 406-430 & 445 to 470 paging Transmitter Test Standards: US CFR Title 47, Chapter I, FCC Part 22 and 90 FCC Part 90 CFR Title 47: 2004 Industry Canada RSS-119, Issue 6 This report concerns: Original Grant for Certification FCC Parts 2, 22 and 90 Tests Performed For: Test Facility: ISC Technologies, Inc PO Box 43 Quincy, IL 62306 Radiometrics Midwest Corporation 12 East Devonwood Romeoville, IL 60446 Phone: (815) 293-0772 e-mail: [email protected] Test Date(s): (Month-Day-Year) March 1 to 10, 2005 Document RP-5511 Revisions: Rev. Issue Date Affected Pages Revised By Authorized Signature for Revision 0 March 25, 2005 1 April 25, 2005 3 Joseph Strzelecki RADIOMETRICS MIDWEST CORPORATION - EMC Test Report Testing of the ISC Technologies, Inc, Model ISC-T5540, Paging Transmitter RP-5511 Rev. 1 Page 2 of 43 Table of Contents 1 ADMINISTRATIVE DATA ................................................................................................................... 3 2 TEST SUMMARY AND RESULTS .....................................................................................................3 3 EQUIPMENT UNDER TEST (EUT) DETAILS .................................................................................... 4 3.1 EUT Description ........................................................................................................................... 4 3.2 Related Submittals ....................................................................................................................... 4 4 TESTED SYSTEM DETAILS .............................................................................................................. 4 4.1 Tested System Configuration ....................................................................................................... 4 4.2 Special Accessories ..................................................................................................................... 4 4.3 Equipment Modifications .............................................................................................................. 4 5 TEST SPECIFICATIONS AND RELATED DOCUMENTS.................................................................. 5 6 RADIOMETRICS’ TEST FACILITIES .................................................................................................5 7 DEVIATIONS AND EXCLUSIONS FROM THE TEST SPECIFICATIONS......................................... 5 8 CERTIFICATION ................................................................................................................................ 6 9 TEST EQUIPMENT TABLE ................................................................................................................ 6 10 TEST SECTIONS ............................................................................................................................. 6 10.1 Peak Output Power .................................................................................................................... 7 10.2 Occupied Bandwidth; Emissions Masks..................................................................................... 7 10.2.1 Spurious RF Conducted Emissions ................................................................................... 19 10.3 Modulation Characteristics ....................................................................................................... 20 10.3.1 Audio Frequency Response............................................................................................... 20 10.3.2 Analog Deviation Limiter .................................................................................................... 20 10.3.3 Analog Modulation Filter (2.1047)...................................................................................... 22 Figure 1. Frequency Response..................................................................................................... 22 Figure 2. Modulation Filter ............................................................................................................ 23 10.4 Frequency Tolerance ............................................................................................................... 23 10.4.1 Frequency Vs. Temperature .............................................................................................. 23 10.4.2 Frequency Stability Vs. Supply Voltage ............................................................................. 24 Figure 3. Test Setup for Frequency Stability and Modulation Characteristics .............................. 25 10.5 Field Strength of Unwanted Spurious Radiation ...................................................................... 26 10.5.1 Test Procedures................................................................................................................. 26 10.5.2 Radiated Field Strength Sample Calculation ..................................................................... 27 Figure 4. Drawing of Radiated Emissions Setup .......................................................................... 28 10.5.3 Spurious Radiated Emissions Test Results ....................................................................... 28 10.6 Transient Frequency Behavior ................................................................................................. 30 10.6.1 Test method ....................................................................................................................... 30 10.6.2 Test Results ....................................................................................................................... 31 Notice: This report must not be reproduced (except in full) without the written approval of Radiometr…

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Test Report

Radiometrics Midwest Corporation (815) 293-0772 – www.radiomet.com Page 1 of 44 Electromagnetic Compatibility Test Report Tests Performed on an ISC Technologies, Inc Paging Transmitter, Model ISC-T5540 Radiometrics Document RP-5511 Product Detail: FCC ID: SS6ISC-T5540 Equipment type: 406 to 414, 421 to 430 & 445 to 470 paging Transmitter Test Standards: US CFR Title 47, Chapter I, FCC Part 22 and 90 FCC Part 90 CFR Title 47: 2004 Industry Canada RSS-119, Issue 6 This report concerns: Original Grant for Certification FCC Parts 2, 22 and 90 Tests Performed For: Test Facility: ISC Technologies, Inc PO Box 43 Quincy, IL 62306 Radiometrics Midwest Corporation 12 East Devonwood Romeoville, IL 60446 Phone: (815) 293-0772 e-mail: [email protected] Test Date(s): (Month-Day-Year) March 1 to 10, 2005 Document RP-5511 Revisions: Rev. Issue Date Affected Pages Revised By 0 March 25, 2005 1 April 25, 2005 3 Joseph Strzelecki 2 August 3, 2005 1, 7-10 Joseph Strzelecki RADIOMETRICS MIDWEST CORPORATION - EMC Test Report Testing of the ISC Technologies, Inc, Model ISC-T5540, Paging Transmitter RP-5511 Rev. 2 Page 2 of 44 Table of Contents 1 ADMINISTRATIVE DATA ................................................................................................................... 3 2 TEST SUMMARY AND RESULTS .....................................................................................................3 3 EQUIPMENT UNDER TEST (EUT) DETAILS .................................................................................... 4 3.1 EUT Description ........................................................................................................................... 4 3.2 Related Submittals ....................................................................................................................... 4 4 TESTED SYSTEM DETAILS .............................................................................................................. 4 4.1 Tested System Configuration ....................................................................................................... 4 4.2 Special Accessories ..................................................................................................................... 4 4.3 Equipment Modifications .............................................................................................................. 4 5 TEST SPECIFICATIONS AND RELATED DOCUMENTS.................................................................. 5 6 RADIOMETRICS’ TEST FACILITIES .................................................................................................5 7 DEVIATIONS AND EXCLUSIONS FROM THE TEST SPECIFICATIONS......................................... 5 8 CERTIFICATION ................................................................................................................................ 6 9 TEST EQUIPMENT TABLE ................................................................................................................ 6 10 TEST SECTIONS ............................................................................................................................. 6 10.1 Peak Output Power .................................................................................................................... 7 10.2 Occupied Bandwidth; Emissions Masks..................................................................................... 7 10.2.1 Spurious RF Conducted Emissions ................................................................................... 20 10.3 Modulation Characteristics ....................................................................................................... 21 10.3.1 Audio Frequency Response............................................................................................... 21 10.3.2 Analog Deviation Limiter .................................................................................................... 21 10.3.3 Analog Modulation Filter (2.1047)...................................................................................... 23 Figure 1. Frequency Response..................................................................................................... 23 Figure 2. Modulation Filter ............................................................................................................ 24 10.4 Frequency Tolerance ............................................................................................................... 24 10.4.1 Frequency Vs. Temperature .............................................................................................. 24 10.4.2 Frequency Stability Vs. Supply Voltage ............................................................................. 25 Figure 3. Test Setup for Frequency Stability and Modulation Characteristics .............................. 26 10.5 Field Strength of Unwanted Spurious Radiation ...................................................................... 27 10.5.1 Test Procedures................................................................................................................. 27 10.5.2 Radiated Field Strength Sample Calculation ..................................................................... 28 Figure 4. Drawing of Radiated Emissions Setup .......................................................................... 29 10.5.3 Spurious Radiated Emissions Test Results ....................................................................... 29 10.6 Transient Frequency Behavior ................................................................................................. 31 10.6.1 Test method ....................................................................................................................... 31 10.6.2 Test Results ....................................................................................................................... 32 Notice: This report must not be reproduced (except in full) without the writt…

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Contact Information

Applicant

Michael James McCabe(VP engineering)
[email protected]217-221-0985Fax: 217-221-9775

Test Firm

Radiometrics Midwest Corp.Joseph Strzelecki
[email protected]8152930772Fax: 8152930820

Technical Specifications

#Rule PartsFrequency RangePower OutputEmissionTolerance
422,90,9406 MHz - 470 MHz246 W9K6F1D0.1 ppm
Confidentiality
Long Term
Grant Notes
Power is conducted delivered to the antenna. RF exposure compliance is addressed at the time of licensing, as required by the responsible FCC Bureau(s), including antenna co-location requirements of ��1.1307(b)(3).

Other Applications from ISC Technologies Inc

100 to 225 watt, 150 to 174 MHz paging transmitter - FCC ID SS6ISC-T8411E - ISC Technologies Inc
SS6ISC-T8411E

100 to 225 watt, 150 to 174 MHz paging transmitter

Dec 06, 2005

Equipment Class

AMP - Amplifier