Knowledge Base

Hardware Limitation of Trimble NetR5 and NetR8 GNSS Receivers

Hardware Limitation of the Trimble NetR5 and NetR8 GNSS Receivers

The Trimble NetR5 and NetR8 receivers are limited to tracking 3 pseudorange (code) channels per satellite at a time. This means for SV's that support L5, when L5 is disabled, L1 C/A, L2P, AND L2C may be tracked/logged, but if L5 is enabled, L1 C/A, L2P *or* L2C, and L5 are tracked/logged, depending on settings. In the latter case the user must choose which L2 pseudorange to track/log. This limitation will affect how users will be able to implement tracking of the new L1C code which will be included in Block III SV's scheduled for deployment in 2013.

As with previous Trimble receivers, the NetR8 only tracks one L1 pseudorange: if anti-spoofing is enabled by the DoD the C/A code is tracked, otherwise L1P is tracked. This is not user-configurable. Anti-spoofing has been and will be enabled for the recent and foreseeable future.

Carrier phase tracking is not affected - L1, L2, and L5 GPS phases are tracked and logged as would be expected.

The Trimble NetR9 GNSS receiver is NOT subject to this limitation, although GPS L1 tracking behavior is unchanged from the NetR8.

Attached Files
There are no attachments for this article.
There are no comments for this article. Be the first to post a comment.
Security Code Security Code
Related Articles RSS Feed
DDoS Attacks on NTP Servers affecting some GNSS receivers
Viewed 12396 times since Thu, Feb 20, 2014
Trimble NetR5, NetR8, and NetR9 Receivers: Hint for Using Web Interface With Slow Connection
Viewed 3464 times since Fri, Apr 29, 2011
Trimble NetR5 - Release Notes v3.10, Rev. A, March 2006
Viewed 1217 times since Tue, Aug 25, 2009
Trimble NetR5 Resource Page
Viewed 7203 times since Tue, Jun 1, 2010
Viewed 5426 times since Mon, Dec 20, 2010
Imaging a Trimble NetRS receiver compact flashcard
Viewed 1564 times since Tue, Mar 31, 2015
How to build a NetR8 or NetR9 DC power cable
Viewed 1806 times since Wed, Jan 4, 2012
Trimble NetR5 - Dealer FAQ, February 2006
Viewed 1315 times since Tue, Aug 25, 2009
Trimble NetR5, NetR8, NetR9 - Using IP filtering
Viewed 3182 times since Thu, Feb 27, 2014
Trimble NetR8 Resource Page
Viewed 7850 times since Tue, Feb 19, 2013

Last modified: 2019-12-27  16:36:35  America/Denver