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User Manual
Documentation P0101211, July 2001, Rev. C
Supersedes Documentation DSNP100493, February 2001, Rev. B
Table of Contents
Introduction ................................................................... 1
Husky MP2500 Palmtop: important keys ................ 2
Choosing an installation site for the station ..................... 4
Preparing and starting up the station .............................. 5
Preparing and starting up the rover................................. 8
Using the Logging function ............................................ 12
Using the Stake out function.......................................... 14
Using the Trajecto function............................................ 19
Reading survey results on the palmtop........................... 20
Raw data recording ....................................................... 21
Checking the entered position at the station ................... 23
Receiver: push-button and LEDs .................................... 24
Palmtop: Status bar....................................................... 26
GPS antenna height....................................................... 28
Using the GSM option .................................................... 29
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Summary of Contents for Husky MP2500
- Page 1 Supersedes Documentation DSNP100493, February 2001, Rev. B Table of Contents Introduction ..............1 Husky MP2500 Palmtop: important keys ....2 Choosing an installation site for the station ..... 4 Preparing and starting up the station ......5 Preparing and starting up the rover......... 8 Using the Logging function ..........
- Page 2 If the Husky has been left uncharged for quite a long time, connect it to the charger then re-initialize the Husky by simultaneously holding down the 3 keys ñ+ñ+ for a few seconds. Let the battery be recharged for a...
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Page 3: Introduction
Introduction This guide should help you carry out your first field surveys using a system from the 6500/6300 series. Below are the main functions which can be performed: - Logging: the rover will compute and save the position of any point in the working area once the antenna rod is placed on this point. -
Page 4: Husky Mp2500 Palmtop: Important Keys
Husky MP2500 Palmtop: important keys : ON/OFF key Com 2 RS232 : “Shift” key (one on either side of the Yes key). Allows entry of characters printed above keys + L :Enables or disables screen back-lighting : Used for screen contrast setting... - Page 5 : If a Functions menu is displayed, selects respectively the next or previous Functions menu (i.e. on right- or left- adjacent icon). In other cases, moves the cursor respectively to the next or previous field. If a parameter is preceded or followed by , allows you to display respectively the parameter’s possible options or characteristics.
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Page 6: Choosing An Installation Site For The Station
Choosing an installation site for the station Choose a site whose position is accurately known and offering an open view of the sky in all directions. In fact, the presence of buildings or vegetation in the vicinity: - will hinder GPS reception for low elevation angles, and so will reduce the number of satellites visible from the station - will bring about multi-path effects likely to impair the system’s accuracy. -
Page 7: Preparing And Starting Up The Station
Preparing and starting up the station 1. Connect the various items of the station together (see below). For SP-type stations, no UHF transmitter & antenna, with nothing connected to the RS422 port at the rear of the unit UHF antenna &... - Page 8 3. Switch on the palmtop (red key). 4. When « C:\>< » is displayed, type in “t” then press 5. Select “Station” as shown below by pressing then press 6. Follow the instructions below leading to having the station transmitting after entry of the required parameters (measured antenna height, coordinates and No.
- Page 9 Write down the beacon ID & frequency entered here* (later, you will have to check that the rover also uses these 2 parameters) Minimum transmit rate: 1 s To start transmitting 3: This LED The station transmits when: flashes at 2: “Filled up”...
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Page 10: Preparing And Starting Up The Rover
Preparing and starting up the rover 1. Connect the various items of the rover together according to rover type & carrying mode chosen (see below or opposite). MP-type rover carried on belt, “all-on-the- rod”, or on shoulder strap Phase center NAP00x 3.6 cm antenna... - Page 11 Backpack No UHF antenna Height of GPS for an MP-type antenna on rod rover C0000200 Phase center (graphite epoxy composite, antenna 3.6 cm 2 m long): 2.036 m NAP00x TNC/TNC cable with right- antenna angle adaptor on receiver Receiver unit Cable P076500A Coaxial Cable P076510A...
- Page 12 2. Switch on the palmtop (red key). 3. When « C:\>< » is displayed, type in “t” then press 4. Choose “Rover” and press 5. Wait for the screen to display Choose a job. Then: Select a job from the list If the list is empty, press C then to create an empty job.
- Page 13 Main Menu screen To select an icon menu, use then or hit directly the key corresponding to the icon order number shown opposite >2 - UHF Receiver (*) Check that the frequency and number displayed here are those of the station (see top of page 7), otherwise correct them so that...
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Page 14: Using The Logging Function
Using the Logging function >2 – Logging Logging Help screens GPS antenna rod is held immobile and vertical above the point ! Fast procedure Complete procedure (no prior solution (solution is checked prior checking) to saving it) Computes & displays position Computes and saves position... - Page 15 Screen examples in Logging: Point name (If the complete procedure is used) Currently available First geocode accuracy in logging associated with point Number of measurements before computing a solution (*) GPS antenna height Computation mode used and accuracy obtained for computed position, before saving it The other 3 geocodes associated with the point...
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Page 16: Using The Stake Out Function
Using the Stake out function >1 –Stake out >3 - Reference points (*) Points list screen (Planned points read from open job) Help Guidance Help screens “OK” Next point GPS antenna rod is held immobile and vertical above the point ! Logging screens Saves position... - Page 17 Screen example showing a list of points (topo): Number of target Name of Distance to open job selected target points in the job Point Geocodes names To guidance screen (page 16) Screen example showing a list of points (seismic): Same as above plus indications below. Braced points form a line To guidance screen (page 17)
- Page 18 Examples of guidance screens (topo): Geographic North Name of selected target At the very beginning Target Your position After a few Distance (d) steps toward still to go + the target transverse, longitudinal & vertical components Zoom ± 5 meters Point used (automatic for guidance...
- Page 19 Geographic North Examples of guidance screens (3D seismic): Name of selected target At the very beginning Target Your position Distance (d) After a few still to go + steps toward transverse & the target longitudinal components Zoom ± 5 meters Limits of (automatic acceptance...
- Page 20 The “Offset” fields are used to cancel artificially the distance to an inaccessible target. Use the T key (in 3D only) or L key (3D & 2D). In each field, type in the corresponding component (o or n) displayed above. This causes the ”OK” message to appear allowing you to complete the survey of the target.
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Page 21: Using The Trajecto Function
Using the Trajecto function >4 - Trajecto Distance/time F3: Start trajectory S: Stop Trajecto P: Pause screen R: Resume F3: Log point B: Active/inactive buzzer Start of trajectory Starts trajectory survey; Points are then logged every x meters or seconds. Each new press on this key will log an extra point. -
Page 22: Reading Survey Results On The Palmtop
Reading survey results on the palmtop > 3 - Result points. Result points are represented as follows: Surveyed target point Target point surveyed through offset method (1 et 2 are the support points P1 and P2) Logged point Surveyed reference point Reference point surveyed through offset method (1 et 2 are the support points P1 and P2) Trajectory. -
Page 23: Raw Data Recording
Raw data recording With palmtop: Insert a PC Card into the receiver Press to switch on the palmtop (This also switches on the receiver, if it was off) 1. At the DOS prompt (C:\>), hit “T” and then 2. Choose “Rover” and then press To display the main menu >Raw data Select... - Page 24 Without palmtop: Depress to switch on the receiver Insert a PC Card into the receiver To start data recording: 1. Press the push-button under the PC Card slot. The LED below starts flashing: 2. Close the protection flap. Data recording starts immediately. The above LED remains permanently lit To stop data recording: 1.
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Page 25: Checking The Entered Position At The Station
Checking the entered position at the station >2 – UHF transmitter Press the S key to stop transmitting >1 – Position The screen now shows the distance deviation between the position you entered and the conventional GPS position computed by the station. -
Page 26: Receiver: Push-Button And Leds
Receiver: push-button and LEDs ON/OFF push-button - If the receiver is off, a short press on this button will switch it on. - If the receiver is on, a long press (4 s approx.) will switch it off (after you release the push-button, the Session LED (5) may flash for a while informing you that switching off is in underway). - Page 27 - Then produces a series of flashes corresponding to the number of received SVs on L1 and L2 (or L1 only if single-frequency). - If indefinitely ON, denotes a reception problem. 2: UHF data link indicator light - Station: Flashes whenever a corrections message is transmitted. - Rover: Flashes whenever a corrections message is received &...
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Page 28: Palmtop: Status Bar
Palmtop: Status bar The status bar allows you to monitor the operation of the system. Status bar Status bar at the station Number of transmitted corrections ≠ 0 : Number of SV corrections currently transmitted by the station = 0 : Transmission OFF (station not allowed to transmit) Flashes if number of SVs ≤... - Page 29 Status bar at the rover Position processing mode used: H : Hold (No solution yet) G : Straight GPS with/without WAAS/EGNOS D : DGPS W : WADGPS (DGPS with WAAS/EGNOS) E : EDGPS (decimeter accuracy) I : KART or LRK initialization K : KART (centimeter accuracy) L : LRK (centimeter accuracy) Flashes if number of SVs ≤...
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Page 30: Gps Antenna Height
GPS antenna height The system must accurately know the coordinates of the GPS antenna’s phase center above the ground, at both the station and the rover. Three different measurement methods are possible: 1. Height: phase 1) Height 2) Vertical 3) Oblique center height is measured directly from the ground. -
Page 31: Using The Gsm Option
Using the GSM option The GSM can be used to complement the U-LINK radio. Setup External battery (not supplied) 5 to 32 V DC 2.5 A fuse Consumption: 2.5 A under 5 V Power supply cable (U-LINK transmitter) Length: 3.00 m RS232 cable Length: 3.00 m Station... - Page 32 At the station: - Select >4 - Connection and choose “port B” in line 4: - Select >3 - GSM Transmitter and then press to allow the station to use the GSM (“ON” then appears top right). The station will actually use the GSM only on rover request. The parameters displayed on this screen (station No., data rate and type) are normally the right ones as they were chosen earlier to operate with the U-LINK radio.
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