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[ CMT Alto-G12 ]
[ CMT CogoCad ]
[ CMT Contour and
Volume for Windows ]
[ CMT GPS Base Station ]
[ CMT HP-GPS-L4 ]
[ CMT March ]
[ CMT MC GPS ]
[ CMT PC5L-GPS ]
[ CMT PC-GPS 3.2
for Windows ]
[ CMT GPS-REC-CR,
12-channel High
Precision Base Station ]
[ CMT Winbase ]
[ CMT Z33 Dual-frequency
GPS ]
[ GARMIN GBR 21 ]
[ GARMIN GPS II ]
[ GARMIN GPS II Plus ]
[ GARMIN GPS III ]
[ GARMIN GPS 12 ]
[ GARMIN GPS 48 ]
[ GARMIN GPSCom 170 ]
[ GARMIN GPSmap 130 ]
[ GARMIN GPSMAP 175 ]
[ GARMIN GPSMAP
210 & 220  ]
[ GARMIN GPSmap
235 Sounder ]

 MC-GPS: Full-featured GPS Power at an Affordable Price

The MC-GPS consists of a rugged, waterproof MC5 hand-held computer, an attached GPS antenna and a GPS receiver integrated in one convenient, hand-held package. It can serve as an all-purpose GPS data collector and navigator. In addition, you can turn the GPS receiver off and still have a fully functional field computer that runs application software such as spreadsheets, databases and programming language programs. Easy Base Station Management

Powerful, MS Windows® Based Processing Software

Using PC-GPS 2.50's differential correction functions, MC-GPS provides 1 to 5 meter accuracy. MC-GPS can collect data for three different types of locations: a point (one location, for example a corner post, tree or stop sign); a line (a series of points connected together, for example a road, sidewald or waterway); or an area (a line that ends the same place it began, for example a lake, park boundary or parking lot).

As an authorized ESRI developer, CMT offers you easy export of your data to your GIS application software. PC-GPS 2.50 exports to:

  • ESRI Shapefiles®
  • ArcInfo®
  • AutoCAD® DXF

Fully Integrated Field Software

MC-GPS feature's CMT-FIELD®, our fully integrated data collection software. Its intuitive, point-and-shoot interface will get you up and running quickly, whether you are a newcomer to the field of GPS or an experienced GPS professional.

CMT-FIELD's® powerful database functions allow you to tie the detailed data you need to each GPS point - saving you time in the field and increasing your data analysis efficiency in the office.

Compatible with Coast Guard Beacon Receiver

Obtain real-time differential correction with CMT's Coast Guard Beacon Receiver package.

Obtain 10 - 30 cm Accuracy with Carrier Phase

Using the carrier phase option, the MC-GPS -CM can attain centimeter-level accuracy (10-30 cm) without separate data collectors, antennas or poles. Uploading and processing your carrier phase data in PC-GPS 2.50 or PC-GPS 3.2 is virtually the same as processing C/A code data. Behind the scenes, however, is a robust carrier phase processor (CMTCM) that will provide either a FIXED solution (ambiguities fixed to integers) or FLOAT solution (ambiguities resolved to real values). The program will notify you of which type of solution was used. You may also process the same data with the standard C/A code processor by simply selecting the CMT Differential processor.

The MC-GPS-CM offers the ultimate in flexibility, allowing you to do a variety of tasks. It can be used to record 1 -5 meter data in addition to 10-30 cm data. For example, if you have a job that requires 10-30 cm accuracy on the property corners but only requires 1-5 meter accuracy on the streams running through the property, the MC-GPS would be the perfect tool. It can perform both tasks in the field without skipping a beat. In the past, you would have needed two different types of GPS receivers to do this job.

Output Options

The MC-GPS has two waterproof DB-9 RS-232 serial ports (COM1: and COM2:) that facilitates communciation with a PC and a variety of additional input and output devices such as:

RTCM-104: Realtime DGPS

Simply plug the MC-GPS's COM1: port into an RTCM-104 source (i.e. FM pager, VHF radio, WADGPS). MC-GPS will automatically detect and use the RTCM message. Since the MC-GPS has two DB-9 serial ports, you can use COM1: for RTCM and still have COM2: available for a barcode reader or NMEA output to another instrument. Don't worry if you lose the RTCM message while you are collecting data; the MC-GPS will automatically warn you and record raw data so you can post-process your data. You'll never be stuck with uncorrectable data!

NMEA 0183: Position Output

MC-GPS will send out an NMEA 0183 message, at an interval specified by you, to either COM1: or COM2:. This functionality allows the MC-GPS to output a GPS position to devices (i.e. digital cameras, sonar, etc.) that will accept an NMEA 0183 message. There is no need to change your instrument settings. The MC-GPS communications can be set to match your instrument. In the NMEA Setup screen, you have complete control over the baud rate and protocol settings.

Interface with RS-232 Compatible Instruments

MC-GPS's flexibility shines when it comes to interfacing with external RS-232 insturments such as laser rangefinders, digital calipers and a number of others. Characters coming in through the COM port appears as if they are being entered through the keyboard. CMT offers a variety of off-the-shelf application software for the MC-GPS. For example, our Surveyor's Assistant software accepts input directly from survey total stations.

Efficient Data Entry with Barcode Input

Attach a barcode wand to the MC-GPS and you can quickly enter data. Barcode menus can be setup in such a way that the you never need to touch the MC-GPS keyboard.

MC-GPS: The GPS Professional's Solution of Choice

MC-GPS is the solution of choice for some of the most demanding GPS professionals in the business, including:

  • US Forest Service
  • Bureau of Land Management
  • US National Park Service
  • Bureau of Indian Affairs
  • Weyerhaeuser
  • International Paper

Let CMT's MC-GPS provide you with the same reliability and ruggedness that the pros have come to depend on.

MC-GPS System Specifications

  • Operating System: CMT ROSII®
  • CPU: CMOS 80C88, no memory wait states, operating at 10 MHz
  • System Memory: 512K RAM
  • RAM Disk: 3 Megabyte internal RAM disk standard. Optional 5 and 8 Megabyte RAM disks available.
  • Environmental: Waterproof, dustproof, shock-resistant
  • Operating Temp.: -40C to 54C
  • Display: 8 lines x 21 characters (8192 pixel graphics)
  • Communications: 2 9-pin RS-232 serial ports (PC-AT Pin-out). Baud rate configurable from 110 to 19200
  • Keyboard: 55-key, alphanumeric, tactile keyboard with large numeric pad and 10 function keys (5 shifted)
  • Size: 12.35" x 4.06" x 2.3"
  • Weight: 3 lbs. (48 ounces) including batteries and attached antenna
  • Estimated Battery Life:
    GPS on GPS off Shelf Life
    Computer: 1 Day 1 Week 2 Weeks
    GPS receiver: 4 Hours --- 1 Month

GPS Receiver and Antenna Specifications

  • Antenna: Integrated Patch Antenna. External antenna mounted on a rangepole or magnetic disk available
  • Capabilities: Tracking: 6-channel, L1 frequency C/A code (SPS), carrier phase and code tracking
  • Sensitivity: Drop Lock of -143 dBm Costas threshold, Acquisition of -134 dBm
  • Performance:
    Position: Mode Accuracy in meters HDOP<4
      CEP (50%) RMS (63%) 2DRMS (95%)
    SPS with SA 40 50 100
    SPS without SA 15 19 38
    PPS 11 14 28
    Code Diff. 2 2.5 5
    Carrier Phase Diff. 0.02 0.025 0.05
  • Velocity: Without DGPS: 0.1 m/s With DGPS: 0.05 m/s
  • Time: Without SA: 1 pps +/- 50 ns RMS
  • Position Update Rate: Once per second
  • Maximum Velocity: 460 m/sec. (1000 knots/sec.)
  • Maximum Altitude: 18000 m (60000 ft)
  • Maximum Acceleration: 2.5g
  • Acquisition Rate:
    Cold start: < 5 minutes
    Warm start: <1 minute