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Summary of Contents for MPH PYTHON III
- Page 1 Industries ™ PYTHON III™ Traffic Radar Operators Manual...
- Page 2 No part of this work, covered by the copyrights hereon, may be reproduced or copied in any form or by any means – graphic, electronic, mechanical, including photocopying, taping, or information storage and retrieval systems – without the written permission of MPH Industries, Inc.
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Page 3: Table Of Contents
Introduction ..........................2 A Detailed Explanation of the PYTHON III's Features.............3 Practical use of the PYTHON III..................3 Display ..........................5 Remote Control........................9 Advanced features of the FS version of the PYTHON III............10 Fastest mode ........................10 Same direction mode......................10 Operation ..........................12 Power up ..........................12 Tuning Fork Tests and Tuning Fork Mode ................12... -
Page 4: Introduction
The PYTHON III is the most useful and flexible radar available; it is a full-featured moving radar. The basic version of the PYTHON III is available in X, K, and Ka bands. An “FS” version of the PYTHON III is also available which allows manually operated same direction speed measurements and fastest vehicle speed measurements. -
Page 5: A Detailed Explanation Of The Python Iii's Features
It was relatively simple for analog radars to process this method. Modern DSP radar such as the PYTHON III can process many targets at the same time, but there is no practical way to display multiple targets and associate them with the correct vehicles. - Page 6 Same direction moving radar (FS version only) Same direction mode allows the PYTHON III to track targets moving faster or slower and in the same direction as the patrol vehicle. This mode is best used in light traffic where visual target identification is easier.
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Page 7: Display
The operating mode of the PYTHON III is illustrated with the scene of a patrol car and selected targets. In opposite direction moving mode, the scene shows an arrow in the left lane of traffic; it is ahead of the patrol car if the front antenna is selected and behind the patrol car if the rear antenna is selected. - Page 8 Power button This button controls the power for the PYTHON III radar. When the PYTHON III is turned off, the radar remembers it’s user settings (mode, etc.), but it does not remember speeds and it starts up in standby mode.
- Page 9 In general, if the patrol speed is typically 60 MPH or less, the radar should be in the city (“Lo”) mode. For patrol speeds, predominately greater than 60 MPH use the highway (“Hi”) mode.
- Page 10 Doppler audio The PYTHON III features a speaker on top of the unit is for Doppler audio and tone beeps. The PYTHON III's audio is derived directly from the received Doppler signal (not synthesized) and is useful as an aid in target identification.
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Page 11: Remote Control
Remote Control LOCK The PYTHON III is supplied with either a FS or standard remote. The FS remote has two extra buttons to control the fastest and same FAST direction modes The remote provides easy access to the essential radar functions. The remote is designed to use with gloves and the buttons provide an intuitive feel. -
Page 12: Advanced Features Of The Fs Version Of The Python Iii
Doppler shift. A radar can not easily separate such targets from the reflections of stationary objects like the windshield or hood ornament. Please keep this fact in mind, because the vehicle nearest you may not be the target displayed by the PYTHON III if it's speed is within 3 mph of your patrol speed. - Page 13 In other words, the Fastest/Slower button toggles the radar between Faster and Slower mode when the radar is in Same Direction mode. The range of the PYTHON III is greatly reduced in same direction mode. This makes target identification easier by reducing the number of potential targets.
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Page 14: Operation
Operation Power up When the PYTHON III is first turned on, it will go through a complete self-test. The radar will first perform a light test, in which all of the display's speed indicators will light, and then the radar will perform a 32 mph internal circuitry test. -
Page 15: Harmonic Detection
These signals would normally be displayed as a target with a speed equal to the patrol speed and prevent the PYTHON III from reading the speed of real targets, but harmonic detection circuitry inside the PYTHON III inhibits this and blanks the target display and activates the HAR indicator on the right side of the middle window. -
Page 16: Power Source
(See arrow in below illustration.) To remove fuse: unscrew and remove the tip and the fuse. Replacement fuses should be commonly available 2 Amp, AGC type fuses. Substitutions are not recommended and may violate the PYTHON III's warranty. -
Page 17: General Operational Considerations
General Operational Considerations Understanding traffic radar A historical perspective The development of RADAR (an acronym for Radio Detection and Ranging) cannot be attributed to a single inventor or even an identifiable group of inventors. It’s basic concepts have been understood as long as those of electromagnetic waves have. As long ago as 1886, it was known that radio waves could be reflected from solid objects. - Page 18 250 cycle per second tone. If we next put the auto in motion toward us at 55 mph, it becomes apparent that we no longer receive 250 waves per second at our ear because, while the waves travel at a constant speed, each succeeding wave has a shorter distance to travel to our ear.
- Page 19 For a source of radio waves, MPH has selected a sophisticated solid state device called a Gunn oscillator that generates radio energy in the microwave region. Specifically, a K-band radar transmits at a frequency of 24,150 MHz, and a Ka-band radar transmits at a frequency of 33,800 MHz.
- Page 20 They have this ability in addition to their standard stationary capabilities. When being used as moving traffic radar, the MPH PYTHON III will simultaneously display both the patrol vehicle speed and the target vehicle speed. Like the stationary radar, the moving radar is based on the Doppler theory.
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Page 21: Operational Concerns Of The Fastest And Same Direction Modes
The display's middle window will show the speed of the fastest target that is moving faster than the strongest vehicle, if there is such a target within the range of the PYTHON III. Otherwise, the window will be blank, showing that it is looking for a faster target but there isn't one within the range of the radar. - Page 22 The PYTHON III cannot determine the difference between a target traveling faster or slower than the patrol vehicle patrol. For example at a patrol speed of 50 mph, a target running 40 mph (10 mph slower than patrol) and a target running 60 mph (10 mph faster than patrol) produce the same signal at the radar.
- Page 23 Thus a vehicle may be directly in front of the patrol car, but if it is traveling the same speed (within 3 mph of the patrol speed), it will not be a read as a target. In same direction mode, the target window displays the strongest vehicle that is NOT within 3 mph of the patrol speed.
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Page 24: Interference Information And Precautions
Intermittent readings need not be confusing if the officer is familiar with the operation of the PYTHON III. For example, if the radar is pointed at the dashboard of the patrol vehicle, it may read the speed of the defroster/heater fan, because most dashboards are now made of plastic. - Page 25 Reduce the effects of the fan by locating the PYTHON III in an area that is less susceptible to the fan motion. MPH Industries provides several mounting options.
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Page 26: Legal Guide
Legal guide The PYTHON III Doppler radar is based upon the well-known and legally accepted Doppler principle of operation. Because of its accuracy and wide legal acceptance over the years, most citations based on Doppler radar now result in guilty pleas. - Page 27 Honeycutt v. Commonwealth, Ky., 408 SW2d 421 Reference G - In this appeal, the court rejects the arguments of the appellant that the evidence should not have been admitted and again establishes that: 1). A properly constructed and operated radar device is capable of accurately measuring the speed of a motor vehicle;...
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Page 28: Fcc Licensing Requirements
Legal Basis for the Use of Police Radar for additional information. FCC Licensing Requirements The MPH PYTHON III has a Grant of Equipment Authorization under Part 90 of the FCC rules (CFR 47). The FCC identifier codes for the K band units are:... -
Page 29: Python Iii Accessories
PYTHON III Accessories Certification services The PYTHON III is provided with a certificate of calibration for the radar and a pair of certified tuning forks. The PYTHON III should be periodically recertified per your state's or department's guidelines. The MPH Service department offers a certification service for all MPH radars and tuning forks. - Page 30 true value of patrol vehicle speed within a few miles per hour. Press any button to turn off the speedometer interface test.
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Page 31: Quality Control Procedures And Repair Of The Python Iii
1. All parts and components are ordered to commercial high reliability, accuracy, and performance specifications. 2. Only vendors that meet MPH’s standards for quality are selected to supply parts and materials. 3. All electrical and electronic components are utilized within their performance specifications, and adequate safety factors measures are provided for voltage, current, and heat dissipation. -
Page 32: Servicing The Python Iii
The user is particularly advised to return the PYTHON III to MPH for repair whenever an antenna problem is indicated. A large portion of the expense of the PYTHON III is contained in the antenna assembly. Also, the microwave frequencies used by the antenna require the use of specialized test equipment that is not available to the typical technician. - Page 33 MPH PYTHON III Specifications The MPH PYTHON III is designed for convenient use by law enforcement agencies to measure the speed of motor vehicles when operated from a moving or stationary patrol vehicle. The PYTHON III utilizes the well-known and legally accepted Doppler principle and has been type accepted by the Federal Communications Commission.
- Page 34 DISPLAY / COUNTING UNIT Speed Display: Three windows for LED speed display on Lexan scratch resistant front panel. LED displays automatically adjust brightness to ambient conditions. Display windows: Target Speed (red, on the left side of the display) Auxiliary (yellow, in middle of display, shows locked target speed or fastest target speed.) Patrol Speed (green, on the right side of displa y) LED Indicators:...
- Page 35 REMOTE CONTROL Raised, colored, shaped buttons: Front antenna Rear antenna Standby Same / Opposite direction Lock Fastest/Slower Physical Size: Weight = .35 lb. (0.16 kg) Width = 2.0" (5.1cm) Height = 1.1" (2.8 cm) Depth = 5.1" (12.9 cm) ANTENNA UNIT 10.525 GHz ±...
- Page 36 CJR-KA-BEE36-001 (Ka band)
- Page 37 Mixer Diode Schottky barrier type rated for 100 mW burnout. Range: 4000 ft (1219m) typical for average size vehicle. Range varies by size of vehicle, terrain, traffic conditions, weather conditions, and other external conditions present in various locations. Physical Size: X band: Length 5.5”...
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Page 38: Operational Recommendations
The PYTHON III fully conforms to all of these guidelines. 1. Handheld devices should be equipped with a switch requiring active contact to emit radiation. -
Page 39: Warranty
Extensions of this product warranty may be purchased from MPH. MPH's obligation is limited to repairing or replacing, as MPH may elect, any part or parts of the product that MPH determines to be defective in material or workmanship. Warranty repair will only be performed at MPH's service center. -
Page 40: Return Policy
We do not want customers to incur unreasonable inconvenience due to equipment failure. MPH Industries will replace any MPH product or make a full refund if repairs cannot be made within the initial 30 days of ownership. If replacement if offered or repair can be made, but the customer insists on returning the product within this initial 30 day period, a 15% restocking fee will be assessed. - Page 41 Part No. 990924 Rev E Date: Jan. 2007...
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Questions and answers
My radar is muted and I can’t figure out how to unmute it. I’ve checked my volume and it’s at a 6. I recently had a battery replaced in my squad car and ever since then the volume isn’t working. Everything else works perfectly fine.
To unmute the radar on your MPH PYTHON III after a battery replacement, press the Aud/Sq button once to display the audio volume level. Then press the up arrow button to raise the volume above level 1 (mute).
This answer is automatically generated