ATH2422004-1

MULTI-NET ® II SUMMIT ® QX UHF REPEATER SERVICE MANUAL Copyright© 1998 by E.F. Johnson Company E.F. Johnson Company designs and manufactures two-way radio equipment to serve a wide variety of communications needs. E.F. Johnson Company produces equipment for the mobile telephone and land mobile radio services which include business, industrial, government, public safety, and personal users. LAND MOBILE PRODUCT WARRANTY The manufacturer's warranty statement for this product is available from your product supplier or from the E.F. Johnson Com- pany, 299 Johnson Avenue, Box 1249, Waseca, MN 56093-0514. Phone (507) 835-6222. WARNING DO NOT operate the transmitter in the frequency band 406 - 406.1, this band is reserved for use by distress beacons. DO NOT allow the antenna to touch or come in very close proximity with the eyes, face, or any exposed body parts while the radio is transmitting. DO NOT operate the transmitter of a mobile radio when a person outside the vehicle is within one (1) meter of the antenna. DO NOT operate the transmitter of a stationary radio (base station, repeater or marine radio) when a person is within one (1) meter of the antenna. DO NOT operate the radio in explosive or flammable atmospheres. The transmitted radio energy could trigger blasting caps or cause an explosion. DO NOT operate the radio without the proper antenna installed. DO NOT allow children to operate or play with this equipment. NOTE: The above warning list is not intended to include all hazards that may be encountered when using this radio. This device complies with Part 15 of the FCC rules. Operation is subject to the condition that this device does not cause harm- ful interference. In addition, changes or modification to this equipment not expressly approved by E.F. Johnson Company could void the user's authority to operate this equipment (FCC rules, 47CFR Part 15.19). SAFETY INFORMATION Proper operation of this radio will result in user exposure below the Occupational Safety and Health Act and Federal Commu- nication Commission limits. The information in this document is subject to change without notice. E.F. Johnson Company will not be liable for any misunderstanding due to misinformation or errors found in this document. LTR, Multi-Net, Viking Head/EFJohnson Logo, Call Guard and SUMMIT are registered trademarks of E.F. Johnson Company All other company and/or product names used in this manual are trademarks and/or registered trademarks of their respective manufacturer.

NAME OF TEST:Transient Frequency Behavior RULE PART NUMBER:90.214 MINIMUM STANDARD:25 kHz channel (used worst case numbers from 450 to 512 MHz) PTT Enable Shall not exceed ± 25 kHz for t 0 to 10 msec Shall not exceed ± 12.5 kHz for 10 msec to 25 msec Shall not exceed FCC frequency limit for t > 35 msec PTT Disable Shall not exceed ± 25 kHz for t 3 to t off (10msec) 12.5 kHz channel (used worst case numbers from 450 to 512 MHz) PTT Enable Shall not exceed ± 12.5 kHz for t 0 to 10 msec Shall not exceed ± 6.25 kHz for 10 msec to 25 msec Shall not exceed FCC frequency limit for t > 35 msec PTT Disable Shall not exceed ± 12.5 kHz for t 3 to t off (10msec) TEST RESULTS:Meets minimum standards, see data on following pages TEST CONDITIONS:RF Power Level = 125 Watts Standard Test Conditions, 25 C TEST PROCEDURE:TIA/EIA - 603, 2.2.19 TEST EQUIPMENT:Attenuator, Coaxial Dynamics Model 6005 / 10 dB 200 Watt Attenuator, Tenuline Model 8340-100 / 10 dB 25 Watt Attenuator, Lucas Weinschel Model 45-3-43 / 3 dB 250 Watt Attenuator, Kay Step Attenuator, Model 439A Attenuator, Texscan Model FP-50 / 20 dB 0.5 Watt Power Supply, Tectrol Inc., TC845-1081 Digital Voltmeter, Fluke Model 8012A Power Combiner, Model MCL ZFSC-4-1 Modulation Analyzer, Model HP8901A Power Meter, Model HP436 Oscilloscope, Model HP54501A Power Detector, Model EFJ lab made Directional Coupler, Model HP778D Signal Generator, Model HP8644B Plotter, Model HP2671G 008-2004-004 Page 74 of 91 NAME OF TEST:Transient Frequency Behavior TEST DESCRIPTION: 1. Adjust signal generator to -100 dBm with a 1 kHz tone at +/- 25 kHz deviation. 2. Enable the transmitter. 3. Adjust the step attenuator such that the transmitter output is -10 dBm at the test receiver input. (maximum input to test receiver = 1 Watt or 30 dBm) 4. Disable the transmitter. 5. Adjust the signal generator such that the level at the test receiver input is -30 dBm. 6. Adjust the oscilloscope to a 10 msec. per division horizontal sweep rate. Then adjust the vertical amplitude control to display the 1 kHz tone at +/- 4 divisions. The +/- 4 divisions represents a deviation of +/- 25 kHz. 7. Adjust the oscilloscope to trigger, and store the result, on a rising edge signal at 1 division from the left side of the display. 8. Remove 30 dB of attenuation from the attenuators that are inline with the transmitter signal. 9. Enable the transmitter and record the display results as the “On Transient Frequency Behavior”. 10. Adjust the oscilloscope to trigger, and store the result, on a falling edge signal at 1 division from the right side of the display. 11. Disable the transmitter and record the display results as the “Off Transient Frequency Behavior”. TEST UNIT ATTENUATOR(s) DIRECTIONAL COUPLER POWER SOURCE DIGITAL MULTIMETER RF DETECTOR DUMMY MICROPHONE SIGNAL GENERATOR COMBINING NETWORK 50 OHM LOAD STORAGE OSCILLOSCOPE MODULATION ANALYZER POWER METER PLOTTER ATTENUATOR 20 dB 008-2004-004 Page 75 of 91

NAME OF TEST:Transient Frequency Behavior at 25 Watts In Support of Emission Designator 11K0F3E Switch On Switch off +25 kHz +12.5 kHz FCC Limit FCC Limit -12.5 kHz -25 kHz +25 kHz +12.5 kHz FCC Limit FCC Limit -12.5 kHz -25 kHz NAME OF TEST:Transient Frequency Behavior at 125 Watts In Support of Emission Designator 11K0F3E Switch On Switch off +25 kHz +12.5 kHz FCC Limit FCC Limit -12.5 kHz -25 kHz +25 kHz +12.5 kHz FCC Limit FCC Limit -12.5 kHz -25 kHz