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A20 User Manual

7.3 Technical Specifications

Feature

Specification

Tracking

Communication

Data formats

GPRS

Internal memory

Radio

RS232,Bluetooth

RTCM, CMR, CMR+, NMEA-0183

128MB

UHF 390MHz ~ 470MHz

54 channels, GPS 14L1,14L2,

GLONASS 12L1,12L2,2SBAS

Support GPRS

Содержание A20

Страница 1: ...A20 GNSS Receiver User Manual Suzhou FOIF Co Ltd Version1 0 ...

Страница 2: ...us of the present manual Compared with other GNSS products exclusive multi constellation GPS GLONASS SBAS capabilities In addition because it s easy to use you will be able to focus on your job for all your GNSS survey operations Congratulations You have just acquired the latest dual frequency A20 GNSS Surveying Introduction A20 is more compact and lightweight while integrating more technology suc...

Страница 3: ......

Страница 4: ...tation by External Radio 3 3 External Radio 3 4 Power Amplifer 3 5 Rover Station 4 General Introduction 4 1 Nomenclature 4 2 Displayed Panel and Keyboard 4 3 Battery 5 Receiver Operation Contents 5 1 Button 5 2 LED Indicating Lights 1 3 3 5 6 6 8 9 11 12 16 16 18 19 20 20 23 Safety Information 3 6 Measuring the Antenna Heights 13 3 7 Controller Connecting 15 ...

Страница 5: ...ting 6 3 Ways of Outdoors Working for Static Surveying 6 4 GPS Network 35 35 35 38 39 46 46 46 47 48 7 Specifications 7 1 Physical Specifications 7 2 Positioning Specifications 7 3 Technical Specifications 7 4 Technical Specifications for Controller 5 3 Displayed Menu 24 ...

Страница 6: ...sibly result in personal injury or property damage Regulations and safety The receivers contain integra Bluetooth wireless technology and may also send radio signal through the antenna of an internal radio modern or through an externally connected data communication radio Regulations regarding the use of the 460MHz radio modems vary greatly from country to country In some countries the unit can be...

Страница 7: ...ansmitter unless all RF connectors are secure and any open connectors are properly terminated lDO NOT operate the equipment near electrical blasting caps or in an explosive atmosphere lAll equipment must be properly grounded according to FOIF installation instructions for safe operation lAll equipment should be serviced only by a qualified technician For GSM radio CAUTION For your own safety alway...

Страница 8: ...l wireless radio is safe for use by consumers The level of energy emitted is far less than the electromagnetic energy emitted by wireless devices such as mobile phones However the use of wireless radios may be restricted in some situations or environments such as on aircraft If you are unsure of restrictions you are encouraged to ask for authorization before Installing antennas CAUTION For your ow...

Страница 9: ...duce potential radio interference to other users the antenna type and its gain should be so chosen that the equivalent isotropic ally radiated power is not more than that permitted for successful communication Rechargeable Lithium ion batteries These receivers use a rechargeable Lithium ion battery WARNING Do not damages the rechargeable Lithium ion battery A damaged battery can cause an explosion...

Страница 10: ...with the rechargeable Lithium ion battery if it is appears to be leaking Battery fluid is corrosive and contact with it can result in personal injury and or property damage To prevent injury or damage If the battery leaks avoid contact with the battery fluid If battery fluid gets into your eyes immediately rinse your eyes with clean water and seek medical attention Do not rub your eyes If battery ...

Страница 11: ...ium ion battery only in FOIF product that is spe cified to charge it Be sure to follow all instructions that are pro vided with the battery charger Discontinue charging a battery that gives off extreme heat or a burn ing odor Use the battery only in FOIF equipment that is specified to use it Use the battery only for its intended use and according to the instructions in the product documentation Ot...

Страница 12: ...y memory device bluetooth etc are all focused in one receiver Moreover GNSS antenna datalink and battery are independently modules which are easy to replace thus handheld for A20 has inner or external GPS antenna and camera for optional function to upgrade this handheld to a GIS collector 3G memory device is also optional for the hand held thus can further upgrade to a highly accurate GIS collecto...

Страница 13: ...Ion batteries 4400mAh can on both external and internal charging ways A20 can also be used by external DC power A20 is widely used for control survey engineering survey topography survey GIS boundries location area survey deformation monitoring etc And from the education subjects based also be used on the total station 810 series made by FOIF These batteries are depended on GNSS products you can a...

Страница 14: ... A Base B Charger car A B C D E F G H I J K L M N C Charging cable 1 5m D Transferring cable E RF cable 2 8m F Connecting line RS232 G Connecting cable between storage and receiver H Battery I Charger J Tape K Plate L Radio Optional M Connector N UHF antenna Base Container Description Container for A20 and delivered accessories part 1 of 2 A20 User Manual 3 ...

Страница 15: ...nnecting line for controller D Battery E Charger F Tape G Connector H PS236 I Bracket J Charger car K UHF antenna L M L Pole M Enhanced UHF antenna Detailed information can check from A20 equipment list Container for A20 and delivered accessories part 2 of 2 A20 User Manual 4 ...

Страница 16: ... transflective sunlight readable LCD c Embedded high sensitivity GPS receiver d MIL STD 810G and IP67 compliance e Long battery life provides all day power f 3G function is supported 2 2 Components of the PS236 Controller PS236 A20 User Manual 5 ...

Страница 17: ...g radio MWS etc Distance between them needs to be more than 200m And less than 50m from power lines is also forbidden to set up base Process 1 Set up the tripod mount and level the tribrach onto the tripod 2 Check that the tribrach is correctly centred over the marker 3 Place and lock the receiver on the tribrach 4 Check that the tribrach is still correctly positioned and leveled 5 Choose external...

Страница 18: ...enna align the antenna connector with the receiver receptacle and then thread the antenna connector onto the receptacle until it is snug lAvoid the following sources of electrical and magnetic noise a Gasoline engines spark plugs b Televisions and PC monitors c Alternators and generators d Electric motors e Equipment with DC to AC converters f Fluorescent lights g Switching power supplies lAvoid e...

Страница 19: ...Two tripods supported A20 User Manual 3 2 Setting Up Base Station by External Radio 8 ...

Страница 20: ...layed Signal light Power Power light Data input battery supplied Heat sink Antenna port Button for power setting Frontal panel buttons and channel displayed Back panel ports detailed PCC radio A20 User Manual 9 3 3 External Radio ...

Страница 21: ...uggested brand of storage battery is Panasonic other brands such as camel fengfan ect are also accepted as long as the output voltage is 12V and power comsumption is not less than 17Ah 4 5m pole is suggested in raising the UHF antenna for better signals 5 Distance between UHF antenna and A20 should be more than 3m 6 Considering the safety of yours A20 is not suggested to be used at the weather of ...

Страница 22: ...fer is not suitable only external radio t have inner emitting radio Notice 1 Connection should be tight between every part cable radio receiver to comfirm the successful data transferring 2 Storage battery used should distinguish the positive and negative poles to avoid the electric short circuit 3 Comfirm that the antenna is connecting with the Power Amplifer before emitting 4 Finish working make...

Страница 23: ...ion between bracket and controller is tight to avoid that controller dropping to the ground 3 If network is used then UHF antenna does not need to fix on A20 Picture showing real time rover station setup A20 User Manual Process 1 Thread the receiver onto the pole 2 Attach the controller bracket to the pole 3 Insert the controller into the bracket 3 5 Rover Station 12 ...

Страница 24: ... to the buckle of black rubber fixing around the receiver use your tapeline from the buckle to the point where your base is setting up thus the reading on tapeline is the height of base Height of DPCA vertical slant Height of DPCA Vertical h0 A20 User Manual 13 Measuring the antenna heights a quick overview ...

Страница 25: ...r pole 2m h0 Considering the normal height of pole is 2m so while setting the rover you just only choose vertical height and enter 2m which is also the default choice h0 could be add automatically by software FOIF Survey_GPS If telescopic pole is used then 2m should be changed to the actual height of pole A20 User Manual 14 ...

Страница 26: ...o finish connecting More shown in FOIF_survey User Manual 3 7 2 RS232 Using serial port cable to build the connection by setting the port with COM1 and baud rate with 19200 3 7 3 State of Connecting Shown When connection is successful whether by bluetooth or RS232 you can comfirm from the screen of A20 or would be displayed on the screen means RS232 while means bluetooth 3 7 4 Disconnecting Menus ...

Страница 27: ...4 1 Nomenclature Frontal panel upper cover inner antenna shockproof rubber ring anticorrosion port for the antenna of inner radio displayed operating interface lower cover battery SIM card slot for SD card A20 User Manual 16 ...

Страница 28: ... of phase center slot for SIM card speaker communication module SD card Lithium Ion battery 4400mAh place for battery COM1 handheld connecting DC IN COM2 external radio DC IN port for the antenna of inner radio A20 User Manual 17 ...

Страница 29: ...A20 User Manual OLED Screen 4 2 Displayed Panel and Keyboard 18 BAT SAT LINK REC OLED Up Down ENT ESC Hot Button PWR ...

Страница 30: ...normally be less A20 User Manual Working time for A20 is more than 10 hours due to its high capacity chargable Li Ion battery but actual using time mayhave certain difference because of different environments A20 can be supported by external storage the cable for connecting A20 and PC is standard in A20 equipment list 4 3 Battery 4 3 1 Ways of Battery Supplied 4 3 2 Supplied by Inner Li Ion Batter...

Страница 31: ...screen of A20 4 You can hear the voice while turning on A20 5 Light BATT is on and light GPS is blinking 6 Finish A20 User Manual Turn off 1 Comfirm that A20 is at working state 2 Press for about 3 seconds unless you hear the voice while the information lossen the power button the receiver will be closed then lossen button 3 The screen and lights on it would all be closed 4 Finish 20 ...

Страница 32: ...not at the static state 2 Comfirm that at least 4 satellites are tracked That is to say the GPS light is blinking green continuously at least 4 times 3 Press then choose the item that you want to set by then press 4 Wait for a moment you will see the blue light is blinking indicating that data link A20 User Manual is successful send or receiver start surveying the item base or rover to achieve the...

Страница 33: ... 1 Up or forward 2 Down or backward A20 User Manual Notice In order to avoid misoperating you should press the button for about 1 second to achieve your choice If the item you want to choose is not the next item e g 3 or 4 items after the cursor s current position then you can press without stop until the cursor switch to the item you want 22 OK OK Esc Esc ...

Страница 34: ...unction Display the number of satellites tracked by A20 1 While blinking in red indicating that A20 is searching the signals of satellites 2 While blinking in both red and green the times that the light blinks in green shows the number of satellites tracked by A20 5 10 A20 speaks to you 5 2 3 Link green Function Differential Signal Indicator 1 OFF no signals transferring 2 Blink regularly normally...

Страница 35: ...d green Function Static working mode 1 OFF no static surveying 2 Blinking regularly Static surveying the speed of blinking is the setting interval 5 3 Displayed Menu 5 3 1 Start Screen A20 User Manual recording 24 ...

Страница 36: ...ator current accuracy SIM card Info indicates that SIM card is not in the receiver If SIM card is put into the receiver would be displayed instead of If receiver is connected to the controller by bluetooth would be displayed instead of which is the COM port symbol A20 User Manual 25 ...

Страница 37: ...s like GNSS Radio GPRS Mem Bat and about Select GNSS you will see the followed 3 interfaces Switch them Coordinate Quality of satellites by up or down arrow signals Number of satellites tracked A20 User Manual Operating Menu 1 Info menu Info GNSS P1 Info GNSS P2 Info GNSS P3 26 ...

Страница 38: ... and channel of radio Select GPRS you will see the model and signal of GPRS Select Mem you will see the Info of memory Select Bat you will see the Info of battery A20 User Manual Operating Menu 2 Info Radio Info GPRS Info Mem Info Bat 27 ...

Страница 39: ... choose Set you will see the setting options for A20 such as GPS Link Memory and System Choose GPS you will see four options for your setting such as Mask Base Rover Static Select Mask here you can set the mask of A20 A20 User Manual Operating Menu 3 Info About Set menu Set GPS samefunctionashotbutton Set GPS Mask 28 ...

Страница 40: ...e of different linkers In the Pos column you can choose the coordinate of base position If the base has not moved you can choose Last for the position of base Instead you can choose Current for the position of base But be sure to do the coordinate converting because the accuracy of base in current mode is 10m by AUTO state A20 User Manual Operating Menu 4 Set GPS Base Set GPS Base Format Set GPS B...

Страница 41: ...tic then 2 options for your setting such as Store position and Interval Two ways are available for your menory NAND flash and SD card If you choose link then you would have two ways for your data transferring GPRS and Radio A20 User Manual Operating Menu 5 Set GPS Rover Set GPS Rover Format Set GPS Static Set Link 30 ...

Страница 42: ...e Radio inner radio setting interface Select Set you would see the Setting Radio procedure You can also choose Memory to set it for storage medium Flash or SD card A20 User Manual Operating Menu 6 Set Link GPRS Set Link Radio Set Link Radio Set Set Memory 31 ...

Страница 43: ... you would be mentioned to copy Flash s data to SD card This is the copying procedure In the System menu you have 4 options to set Bluetooth Voice Language and Screen A20 User Manual Operating Menu 7 Set Memory Flash Set Memory SD card Set Memory SD card Copy Set System 32 ...

Страница 44: ...g procedure Here you can Open or Close the Voice Two options are available for language Screen to set Contrast and OLED A20 User Manual Operating Menu 8 Set System Bluetooth Set System Voice Set System Language Set System Screen 33 ...

Страница 45: ...is is power saving mode by choosing OLED then you would be asked whether auto off OLED or not If you choose Yes the screen would be Off automatically after 1 minute without affecting your Operating Menu 9 Set System Screen Contrast Set System Screen OLED surveying job 34 ...

Страница 46: ...eight of A20 etc on a notebook 5 When outdoors surveying is over turn off A20 Notice Normally it is better to record the static data on SD card 6 2 Data Downloading and Format Converting 1 Connecting A20 and PC for data downloading 2 File name given should according to the notes of outdoors surveying made by yourself SN of A20 surveying time and point name should all be indicated in the file name ...

Страница 47: ...ast capital letter is can give its name as 0023086A Further more still this receiver for the second time A20 User Manual 36 of receiver for the first time surveying at 9am to 10am on CPI0023 point name so we surveying time 4 Click Import raw files for translated to RINEX choose the files that need to be converted These files are downloaded from receivers This software can convert as much as 16 fil...

Страница 48: ...n finished then press OK you can see the network and baselines for your static surveying Detailed pictures are shown below 8 Using FOIF post processing software FGO Geomatic Office 2008 to do the office Detailed ways are shown in the user manual of FOIF Geomatics office 2008 work ...

Страница 49: ... satellite constellation PDOP etc If big building is beside the A20 User Manual 38 point then you should give a conclude on whether this big object would influence the effects of static surveyings on that point 3 Give a detailed surveying precedure on the paper 4 Outdoors surveying Comply with the surveying procedure and related receiver manual to lead your job 5 Data transferring Check the consis...

Страница 50: ...suggested 4 In order to convert GPS system to your local coordinate system you should have at least 3 to 5 higher accuracy known point that are equally spread in the survey district for your good coordinate converting At the same time if you want to get your good elevation of A20 User Manual 39 the surveying points then you should have certain leveling points for your research on the elevation of ...

Страница 51: ...nto 6 levels by Surveying Standard for GPS published in 2001 AA A B C D E AA A B are for country s GPS control surveying Level C is mainly in engineering surveying of big or middle cities D and E are for control surveying in middle or small cities A20 User Manual 40 Minimum distance for Maximum distance for Average distance for Items AA A B C D E Fixed error a mm Scale factor b ppm adjacent two po...

Страница 52: ...ce of SA It is suitable for the GPS network survey of level A Multi base While several receivers are fixing at the base points like CORS with long time surveying then we can use other rovers working in this net simultaneously It is suitable for level C and D survey Single base Use one receiver fixing at the base point working continuously then use rovers to do the surveying job around base point T...

Страница 53: ...dial network Point connecting network Side connecting network Polygon connecting network and Mixed connecting network Radial network Radial network is a simple geomatic figure but it is not easy to check the accuracy because all the sides of that network are not closed The advantages for this type is only need 2 receivers which is regarded as an easy working fast tracking way It is widely used in ...

Страница 54: ... confirm the high precision surveying So it is not suggested in precise working Side connecting network Side connecting network is defined as a figure by connect ing two adjacent shapes by their common side It is as same as normal GPS network designing shown in the last para graph and is widely used in the surveying field because of On the left is 3 receivers working simultaneously in the Point co...

Страница 55: ...ted for high precision control surveying Mixed connecting network Because every type of network has its own disadvantage so we can use Mixed connecting network which can combine the advantages of these types to achieve higher efficiency working but lower investment both in time and money Mixed connecting network is also the common type in doing the surveying job 6 4 5 Principles of GPS Network Des...

Страница 56: ... time 2 Repeated station setting is suggested 3 Comfirm that one point should be involved at least 3 baselines 4 The sides for every part of the network should not exceed 6 Precision 1 Synchronous surveying is suggested in the adjacent points 2 GPS network designing is suggested 3 The sides for every part of network should not exceed 6 4 High precision EDM instrument is recommended to use together...

Страница 57: ...erating time Operating temperature Storage temperature Humidity Water Dust proof Drops 10 hours 30 to 65 40 to 75 Up to 100 IP67 IEC529 2M pole drop 7 2 Positioning Specifications D distance Km Feature Specification Postprocessing Horizontal Vertical Real time RMS Horizontal Vertical 2 5mm 1ppm D 5mm 1ppm D 10mm 1ppm D 20mm 1ppm D ...

Страница 58: ...nical Specifications Feature Specification Tracking Communication Data formats GPRS Internal memory Radio RS232 Bluetooth RTCM CMR CMR NMEA 0183 128MB UHF 390MHz 470MHz 54channels GPS14L1 14L2 GLONASS12L1 12L2 2SBAS Support GPRS ...

Страница 59: ...nsions Weight Operating temp Storage temp Humidity Water Dust Drops Memory Display PXA310 806MHz 32bit RISC CPU 3 5 in VGAfull colour touch screen llumination Microsoft Windows Mobile 6 1 128MB extend SD card Integrated bluetooth and RS232 10m for bluetooth USB RS232 178 89 30mm 0 5kg Include battery 40 70 95 IP65 IEC529 1 52m 5ft drops to polished concrete 30 60 ...

Страница 60: ...ight Operating temp Storage temp Humidity Water Dust Drops Memory Display Samsung2440 400MHz CPU 3 5 in VGAfull colour touch screen llumination Microsoft Windows Mobile 5 2GB extend SD card Integrated bluetooth and USB 10m for bluetooth USB 144 25 82 25 29 3mm 0 3kg Include battery 30 70 95 IP54 1 52m 5ft drops to polished concrete 20 60 ...

Страница 61: ...SUZHOU FOIF CO LTD ADD 18 Tong Yuan Road Suzhou 215006 P R China TEL 86 512 65224904 FAX 86 512 65220619 Http www foif com cn E mail internationalsales foif com cn ...

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