Configuring the Vaisala WXT510/520 Weather Transmitter There are two ways to configure the Vaisala WXT510/520 Weather Transmitter: Use the Vaisala configuration software and service cable; load the UNAVCO configuration file located at: ... Read More

This problem has been corrected with the release of Safari version 11.0. If you are unable to update to version 11.0 or later the following instruction are relevant.   Receiver operators who utilize Safari when accessing the Web User... Read More

The UNAVCO configuration file for the NetR9 (right click to download. is intended for use with firmware version 5.44 Config file is a XML file the firmware file may be downloaded as a mp3 files dues the browser that is used, you will need... Read More

Equipment SetupALWAYS connect a UHF antenna before powering ON the APS-3, use the 440-470MHz antennas.Install two batteries per receiver.Setup APS-3 labeled base over your fixed base control point and record instrument height.If not specified below,... Read More

This document shows how to swap a Trimble Zephyr GNSS Antenna for a Trimble Choke Ring GNSS Antenna. Read More

Temperature Sensor With RS232 Serial Interface The purpose of this article is to present a method for creating a low-cost temperature sensor that can communicate over an RS232 serial connection with a Trimble GPS receiver. The temperature data can... Read More

The UNAVCO standard configuration file for the NetR8 is intended for use with firmware version 4.87. Do not use this file with earlier versions. Users should familiarize themselves with the details of the file and make changes according to their... Read More

This document shows step by step how to upgrade a Trimble Zephyr GPS Antenna to a Trimble Choke Ring GPS Antenna. Read More

Note: The # symbol in this guide denotes a command to be entered at the command line in Terminal. Note: Text shown after a ! symbol indicates a comment. It should not be copied to the command line.Requirements:   A licence to use... Read More

TRIM4000 DOS-based Download Program for Trimble 4000 SSE and SSi Receivers UNAVCO 8/02 This is an outline of the steps needed to download data from Trimble 4000 SSE and SSi receivers. NOTE: The TRIM4000 program does not work properly when running DOS... Read More