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Now, what’s tomorrow’s challenge?

APN-022 Rev 1 February 7, 2000

FIRMWARE BULLETIN

3.36 Firmware for OEM2 / PC2 GPS Receivers

Firmware 3.36 is now available for all models of OEM2 and PC2 GPS receivers. It has the

following enhancements since Firmware 3.35:

• Added New Logs

FRM Framed Raw Navigation Data

PAV Positioning Averaging Status

PRTK Computed Position

RGED Compressed form of RGEA log – Channel Range Measurements

RTK Computed Position – Time Matched

VER Receiver Hardware and Software Version Numbers

FRW Framed Raw Navigation Words

• Added New Commands

FRESET Clears all data which is stored in non volatile memory

POSAVE Implements position averaging for reference station

RTKMODE Set-up the RTK mode

• Modified Command

UNLOGALL Now includes an option to disable all logs on a specified COM port only

• Reset Clock Model

The clock model resets 60 seconds after signal loss.

3.35 Firmware for OEM2 / PC2 GPS Receivers

Firmware 3.35 has the following enhancements since Firmware 3.34:

• Ability to use RTCA message types

It is now possible to achieve RT-20 positions using either RTCM or RTCA message types.

This means it is now possible to use single or dual frequency base stations for RT-20

positioning.

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• Handles GPS week roll-over

The transition from GPS week 1023 (on Saturday August 21, 1999 at 23:59:59) to GPS week

0 is successfully handled.

• Additonal data logs available

Two additional data logs, PRTK and RTK (as used for RT-2) now have been added.

• Enhanced tracking

Improvements in tracking, specifically under helicopter blades have been incorporated.

• Ionospheric model updated

The ionospheric model used has been updated so that it is now compliant with GPS-ICD-200

specifications.

• Erroneous prompts ignored

Erroneous feedback or messages from other cards are now ignored. This prevents faulty,

unwanted commands being interpreted as valid commands.

• SAVECONFIG bug fixed

It is now possible to save a user specified datum. Prior to this release, the USERDATUM was

not being saved and was being reset to WGS84 even when a SAVECONFIG was requested.

• Baud Rate Performance Improvements

RS-232 baud rate performance has been improved to provide more reliable throughput. This

is especially noticeable at higher baud rates.

For the best performance, users are urged to use the latest firmware available.

If you require more information on these or other NovAtel GPS products, please contact the

Customer Service Department:

NovAtel, Inc.

1120 – 68

Avenue N.E.

Calgary, Alberta

Canada, T2E 8S5

Phone: toll free at 1-800-NOVATEL (Canada and the US only) or at (403) 295-4900

Fax: (403) 295-4901

Email: support@novatel.ca

Website: www.novatel.ca