MPH PYTHON III Скачать руководство пользователя страница 13 | Manualshive

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The radar will stay in faster mode until the FAST button is pressed again, at which time it will
toggle slower mode. 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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Содержание PYTHON III

Страница 1: ... Industries PYTHON III Traffic Radar Operators Manual ...

Страница 2: ...stries Inc 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 ...

Страница 3: ...ng Fork Mode 12 Harmonic detection 13 Range and radar placement 13 Power Source 14 Fuse Replacement 14 General Operational Considerations 15 Understanding traffic radar 15 Operational concerns of the fastest and same direction modes 19 Interference Information and Precautions 22 Legal guide 24 FCC Licensing Requirements 26 PYTHON III Accessories 27 Quality Control Procedures and Repair of the PYTH...

Страница 4: ...red calculations for detecting patrol and target speeds very efficiently The MPH PYTHON III is composed of one or two antennas a wired remote control and a display counting unit MPH designed the PYTHON III using only the highest quality parts Combined with the workmanship provided by MPH s Manufacturing Department the PYTHON III will provide years of high performance The MPH PYTHON III offers more...

Страница 5: ...is correct at the instant of determination In opposite direction mode care should be taken by the operator to recognize that the violator is traveling at a higher rate of speed than the norm that the vehicle is out front by itself and nearest the radar that proper identification of the violating vehicle is made and at the time of speed determination the patrol vehicle s speed indication on the rad...

Страница 6: ...on mode 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 With this feature active the target speed range is limited to patrol speed 70 The target must be moving at a speed at least 3 mph fa...

Страница 7: ... the patrol car if the rear antenna is selected In same direction moving mode the arrows target vehicle is shown moving the same direction as the patrol car In addition moving mode is indicated by Mov appearing under the middle speed display window In stationary mode the Mode window works similarly Indicators appear in front of or behind the patrol vehicle icon to indicate the selected antenna Sta...

Страница 8: ...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 When the unit is next turned on it powers up using the same settings saving the user the trouble of resetting the radar to his or her desired settings Test button Manually initiates a self test of the r...

Страница 9: ...g On power up the range is initially set to maximum Pressing the down arrow button decreases the range one level pressing the up arrow button increases the range Up arrow button Sets the patrol speed range to the highway values This button also works with the Aud Sq Range and Patrol buttons to increase or toggle the settings Down arrow button Sets the patrol speed range to the city values This but...

Страница 10: ...er 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 The loudness is proportional to the strength of the received signal and increases as the target vehicle approaches The pitch of the audio signal increases with higher closing speeds The Doppler audio a...

Страница 11: ...nutes this time will vary on special department requests will automatically be cleared If the unit is in standby a countdown will be shown in the target window along with an alerting tone informing the officer that the locked speeds are going to be cleared soon For example the target window will display L30 at 30 seconds from clear L20 at 20 seconds from clear and L10 at 10 seconds from clear then...

Страница 12: ...le the PYTHON III is in fastest mode will lock the strongest target and the radar will immediately exit the fastest mode The PYTHON III will not allow the locking of the speed that is displayed in the fastest window Same direction mode Same direction moving radars like the PYTHON III have two major differences from opposite direction moving radar First vehicles traveling the same or very near the ...

Страница 13: ...oggle slower mode 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 ...

Страница 14: ...he target speed window to display the speed labeled on the fork 1 mph While performing the tuning fork test the audio volume level may be set to a desirable level Fastest mode FS units only may be tested by using the lower speed tuning fork as above and by placing the ringing higher speed fork into the antenna beam at a greater distance since the fastest target should be a weaker signal than the t...

Страница 15: ...ad 30 high speed fork plus low speed fork Harmonic detection In moving mode the PYTHON III receives a large reflection from the road which is used to compute the patrol speed Some situations such as when guard rails or large signs are present cause the signal to be excessively large This can sometimes cause a harmonic frequency of twice the patrol speed to appear These signals would normally be di...

Страница 16: ...e range of the PYTHON III To combat this it is recommended that a shielded cable be run from the battery directly to an auxiliary receptacle installed under the dash or on the console This should effectively eliminate any power source problems Fuse Replacement PYTHON IIIs are shipped with a fused cigarette lighter plug The fuse is housed inside the tip of the plug See arrow in below illustration T...

Страница 17: ...pping With the lifting of military security restrictions in 1946 the level of research in radar declined and attention was turned to the development of civilian applications such as radio astronomy and weather radar Although a method of velocity measurement using a theory of physics called the Doppler principle was well known it was never applied to a radar until this post war period One of the fi...

Страница 18: ...his point we have been using sound to demonstrate the effects of the Doppler principle However as you may know radio energy and light also exhibit a waveform and this fact opens several interesting areas to consideration As we have seen earlier it is possible to determine the existence and the location of an object at great distance by transmitting a beam of radio energy and then receiving that sm...

Страница 19: ...matically that for a transmitted K band frequency of 24 150 MHz a Doppler frequency of 72 0 Hz will be produced for each mile per hour that the target is moving Similarly a transmitted Ka band frequency of 33 800 MHz will cause a Doppler frequency of 100 8 Hz to be produced for each mile per hour For example K band 72 02 Hz x 60 mph 4321 0 Hz Doppler frequency Ka band 100 8 Hz x 60 mph 6048 0 Hz D...

Страница 20: ...l vehicle speed and the target vehicle speed Like the stationary radar the moving radar is based on the Doppler theory However with moving radar the signal processing is more involved than with stationary The radar receives reflected signals from both the target and the roadway The target signal contains information on the combined speed of the two vehicles while the patrol signal has the informat...

Страница 21: ... in fastest mode Fastest mode operation is available anytime except in same direction mode Pressing the FAST button on the remote will initiate a search for any vehicles that are faster than the strongest target Activation of this mode will be indicated on the front panel with the Fast icon below the middle window The display s middle window will show the speed of the fastest target that is moving...

Страница 22: ... target identification is easier Operation of the same direction moving mode Same direction moving mode is selected by pressing the S O button on the remote control when the radar is in moving mode This mode requires more attention and decision making on the part of the operator When in same direction moving mode the FAST button on the remote toggles the faster slow target vehicle function The PYT...

Страница 23: ...tton would NOT help choose one or the other 3 Fastest mode is not available in same direction mode 4 Range in same direction mode is reduced substantially from opposite direction mode The range adjustment sets the range for the opposite direction stationary and same direction modes 5 If heater fan interference is a problem in stationary mode it will also be a problem in same direction moving howev...

Страница 24: ...rence detector the PYTHON III will not acquire and display a weaker more distant target in its place 2 Man made Influences These influences are normally the most troublesome because they generally involve electronic signals which may cause spurious displays or they may lessen the effective range Power transformers radio transmitters neon lights etc generate electronic noises These influences gener...

Страница 25: ... the speed measurement device MPH Industries suggests the following if fan interference is suspected 1 First determine the fan is the source of interference by checking whether the readings change when the fan is turned off or when the fan speed is increased or decreased 2 Reduce the effects of the fan by locating the PYTHON III in an area that is less susceptible to the fan motion MPH Industries ...

Страница 26: ...LR2d 469 and Cumulative Supplements Thereto A legal publication reporting the Dantonio case 1955 and briefing it and subsequent cases dealing with proof by means of radar devices or violation of speed regulations Reference C State v Dantonio NJ 115 A2d 35 49 ALR2d 460 A landmark case on the subject This case sets precedent of the following 1 Judicial notice has been taken of the accuracy of radar ...

Страница 27: ...to testify to the following points to have a successful prosecution 1 The officer must establish the time place and location of the radar device the location of the offending vehicle when the offence took place that the defendant was driving the vehicle and that State law regarding the posting of speed limits and radar signs had been complied with 2 The officer must state his qualifications and tr...

Страница 28: ...nal 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 X band CJR XPYT 001 K band CJRB 09 000831 Ka band CJR Ka BEE36 001 THIS EQUIPMENT COMPLIES WITH PART 90 OF THE FCC RULES ANY CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY THE MANUFACTURER COULD VOID THE USE...

Страница 29: ...ased Owners of the PYTHON III law enforcement agencies and their affiliates can order additional copies of the operation manual from MPH As a rule operation manuals are not made available for sale to the general public Replacement tuning forks A pair of certified tuning forks are provided with each PYTHON III purchased Replacement tuning forks can be ordered from MPH Speedometer Interface The spee...

Страница 30: ...28 true value of patrol vehicle speed within a few miles per hour Press any button to turn off the speedometer interface test ...

Страница 31: ...evel assemblies 5 Each traffic radar is tested in an anechoic chamber for proper performance and compliance to accuracy requirements 6 Each radar is tested burned in for not less than twelve hours After completion of burn in testing the unit is again tested in the anechoic chamber to assure product excellence 7 A portion of each radar model is road tested under conditions encountered in actual ope...

Страница 32: ...tise in handling Doppler radar problems All factory repairs are guaranteed by MPH as detailed in the PYTHON III warranty Consult the factory for repair procedures and charges 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 fre...

Страница 33: ... with target 0 5A typical Front antenna on during LED test 0 7A typ Stationary Operating Speed Stationary mode operating speed range is from 15 mph up to 200 mph for K or Ka band units X band operating speed is 20 mph to 209 mph Moving Operating Speed In opposite direction mode Patrol Speed range is 20 mph to 100 mph in highway mode and 12 mph to 80 mph in city mode Target Speed range is 20 mph up...

Страница 34: ...rget speed or fastest target speed Patrol Speed green on the right side of display LED Indicators Mov moving mode Sta stationary mode Fast fastest vehicle mode T Lock locked target speed X standby Patrol car transmitting Four arrows selected antenna and lane Control Buttons Power Test Moving Stationary Audio Squelch Range Up Down arrows Patrol Connectors Front antenna Rear antenna Power cord RS 23...

Страница 35: ...ut Power Nominal 12 30 mW Maximum 50 mW Radiated Power Density Less than 2mW cm2 at 5 cm Type Circularly polarized conical horn Beam Width X band Does not exceed 18 K band 13 Nominal Ka band Does not exceed 15 Beam Width Variance 1 at maximum manufacturer s tolerance Side Lobe X band 24 dB down from main beam K band 22 dB down from main beam Ka band 25 dB down from main beam Received Microwave Bea...

Страница 36: ...34 CJR KA BEE36 001 Ka band ...

Страница 37: ...ries by size of vehicle terrain traffic conditions weather conditions and other external conditions present in various locations Physical Size X band Length 5 5 14 0 cm Diameter 4 5 11 4 cm K band Weight 1 0 lb 0 5 kg Length 4 5 11 4 cm Diameter 3 75 9 5 cm Ka band Weight 0 5 lb 0 23 kg Length 3 5 8 9 cm Diameter 2 5 6 4 cm ...

Страница 38: ...should permit the continued use of one piece or handheld radar units 2 Older handheld devices that do not have a dead man switch should not be placed with the radiating antenna pointed toward the body whether it is held in the hand or placed near the officer A holster or other similar device should be used as a temporary holder for the radar when not in use 3 When using two piece radar units the a...

Страница 39: ...ing any feature or device to it or is in any way tampered with modified or opened without express written permission from MPH or if the warranty seals on the product are broken There are no warranties expressed or implied including but not limited to any implied warranties of merchantability or any indirect or consequential damages arising out of any such defect in material or workmanship As a fur...

Страница 40: ...s Manual 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 Afte...

Страница 41: ...39 Part No 990924 Rev E Date Jan 2007 ...

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