Powerful, Rugged GPS in the palm of your hand

- Small, integrated unit, very convenient and easy to carry.
- Rugged and waterproof construction.
- Used by many forest companies as a multi-purpose GPS tool. Popular in the GPS/GIS market.
- Easy field battery replacement (no tool required).
- Simple 14-key format and Field 3.8 makes it easy to learn and collect complex GPS/GIS data.

- Powerful PC-GPS included, standard.




















List Price:





GPS receiver:

8 channel

8 channel



DGPS Beacon Receiver:





Professional GPS/GIS:





Mapping Accuracy:
(Differentially Corrected, 2DRMS)

C/A Code:  1 - 5 meters
   Carrier Phase:   2.5 cm + 2 ppm (optional)



Designed for easy use:

Yes, CMT Field 3.8 Included



On-board Traverse:





Post Processing:






 2 MB standard

 2 MB standard



Records Points, 
Lines, and Areas:





GPS/GIS Mapping Software:
Microsoft Windows« based 

Yes, PC-GPS 05 Included




Yes, submersible

Yes, submersible



       Audible beeper signal:










System Features
- 8-channel L1 frequency
- Full wavelength carrier phase on L1
- Carrier-phase smoothing
- Up to 1 Hz position update rate
- Up to 1 Hz code & phase measurements
- 1 PPS timing signal
- Superior performance under tree canopy

NMEA / Barcode Device Interface Capabilities
- Two 9-pin RS-232 serial ports, PC/AT pinout.
- The MARCH has two waterproof DB-9 RS-232 serial ports (COM1: and COM2:) for communication with your PC as well as a variety of additional input and output devices such as:

RTCM-104 Version 2.0: Real-time DGPS 
Simply plug your RTCM-104 source (i.e.FM pager, VHF radio, WADGPS) into the MARCH's COM1: port. The MARCH will automatically detect and use the RTCM message. Since the March 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 MARCH-II-E can be set to collect raw data and will automatically warn you so you can post-process your data.

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

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

Efficient Data Entry with Bar Code Input  
Attach a bar code scanner to the March and you can quickly enter data. Bar code menus can be set up in such a way that you never need to touch the March keyboard.

Data Collector Features
- Waterproof (submersible)
- Operating temperature: -20░C to 54░C
- Audible beeper
- 8 line x 21 character backlit display
- 2 MB RAM, 512K Flash EPROM
- 7.9" (20 cm) x 3.9" (9.9 cm) x 3.0" (7.62 cm)
- Fully integrated GPS receiver, antenna and data collector in one hand-held unit
- 14-key keyboard including 5 function keys
- External antenna port
- Up to 5 hrs. on internal, rechargeable battery
- Field-replaceable rechargeable battery

CMT Field Software v3.8
- Collect Points, Lines Areas
- Feature/Attribute/Value GIS structure
- Graphic plotting.
- Offset function to map hard-to-reach locations.
- Nested point function for tagging points while you are mapping a Line or Area Feature.
- Averaging function to optimize accuracy while recording static points.
- LLA/UTM/SPC plus user-defined coordinates.
- Supports 50 datums plus user-defined datums.
- On-board area calculation
- Built-in traverse

Obtain 2 cm + 2 ppm accuracy with Carrier Phase
Using the carrier phase option, the March-II-E-CM can attain centimeter-level accuracy
(2 cm + 2 ppm) without separate data collectors, antennas or poles. Uploading and processing your carrier phase data in PC-GPS 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 in PC-GPS.

The March-II-E-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 2 cm + 2 ppm data. For example, if you have a job that requires 2 cm + 2 ppm accuracy on the property corners but only requires 1-5 meter accuracy on the streams running through the property, the March-II-E 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.


The MARCH-II-E package includes CMT's PC-GPS software for comprehensive GPS project management and mapping. PC-GPS 3.8 provides functions for Mapping, Mission Planning, Batch Differential Correction, Static Point "Spread" analysis and Job Editing. The software also supports GIS layering, raster images (i.e. DOQs, DRGs, aerial photographs, satellite imagery), multimedia objects (OLE 2.0) and Microsoft« ODBC.

System Accuracy Specifications

Real-Time Differential (DGPS)


1-5 m

DGPS (typical)

1-5 m



L1 Carrier Phase Post-Processing

Static (RMS)

2.5 cm + 2ppm

Static (typical) 

2 cm + 2ppm



L1 C/A Code Post-Processing

Static (2DRMS)

1-5 m

Static (typical)

1.5 m - 2.5 m

Time to first fix

45 sec. typical, 18 sec. with
current ephemeris

Tracking sensitivity

- 139 dBm

Acquisition sensitivity

- 105 dBm to -137 dBm


<2.5 sec, with <15 sec. interruption

Velocity (RMS)

.05 m/sec.

Maximum velocity

460 m/sec.

Maximum altitude 

18,000 m

Maximum acceleration



MARCH-II-E Specifications

Operating System:


System Memory:

512K RAM

RAM Disk:

MARCH IIę: 2 Megabyte


Waterproof, dustproof, shock-resistant

Operating Temp.:

-20░C to 54░C


8 lines x 21characters (64x128 pixel graphics)


Two 9-pin RS-232 serial ports (PC-AT Pin-out).
Baud rate configurable from 300 to 38400


14-key tactile keyboard with 5 dedicated function keys


7.9" x 3.9" x 3.0"


33 ounces with batteries


GPS Receiver and Antenna Specifications


Integrated Patch Antenna, External Antenna Support (External Antenna Optional)


Tracking: 8-channel continuous tracking of C/A Code and Carrier Phase



C/A Code Differential:

1-5 m

Carrier Phase Differential:

2.5 cm + 2 ppm

Position Update Rate:

Once per second

Acquisition Rate


Warm start:

18 seconds with current ephemeris

Cold start:

<5 minutes


  Estimated Battery Life



GPS on


GPS off


Required Recharger


2100 mAH

4+ hours


2 weeks




**Most MARCH users use a spare battery to get a full 8 hours of use.