Trimble 4000 GPS Receiver Resources
- Trimble 4000 Secrets
- Trimble 4000 Option Codes Explained
- Trimble 4000 Option Code Generator
- Firmware Images including 7.32 with WRNO fix for dates after April 2019.
- See the manuals section for manuals.
- My Data Transfer/Conversion Workflow
- 4000 Series Undocumented Serial Commands
- 4000 Series LEMO Connectors
- 4000 Series M18 Power Adapter
- 4000 Series Software
- 4000 Series Receiver Info Printouts
Hardware Deep Dives
- 4000SX Deep Dive
- 4000ST Deep Dive
- 4000SE (Gauss) Deep Dive
- 4000SE (Maxwell) Deep Dive
- 4000SSi Deep Dive
Receiver Generations
There were three notable generations of the Trimble 4000 series receivers.
1984: First Generation: Rack Mount
Models: 4000A (1984), 4000AX, 4000S, 4000SX, 4000SXD, 4000SL, 4000SLD (1988)
The first generation was represented by the 4000A. Contained in a 19" rackmount enclosure, they were not exceedingly portable. Trimble stuffed them in plastic carrying cases and called them "portable"
4000A - 1984
4 Channels L1
![](4000a.jpg)
4000S - 198?
The first unit targeted at surveyors.
4000SX - 198?
![](4000sx.jpg)
5 Channels L1
4000SL - 198?
5 Channels L1/L2
![](4000sl.jpeg)
19xx: Second Generation: Yellow Metal Box (Alpha)
Models: 4000ST, 4000SST, 4000STD, 4000RL, 4000DL
![](4000st.jpg)
Architecture: Hitachi HD68HC000 CPU, Up to 6 two channel correlators built around Hitachi HD63C09 CPU paired with Trimble 11833 'Gilligan' ASIC.
~1991: Third Generation: Gauss Plastic Box (Beta)
Models: 4000SE, 4000RL2, 4000DL2
Note: The 4000SE was released in both Gauss and Maxwell versions.
Architecture: ?
![](4000ssi.jpg)
~1992: Fourth Generation: Maxwell Plastic Box (Gamma)
Models: 4000SE, 4000SSE (1994), 4000Si, 4000SSi, 4000RS, 4000DS
Note: The 4000SE was released as both a third generation and fourth generation receiver.
Architecture: Motorola MC68332 SoC, Texas Instruments TMS320C25 DSP, S87C552 (Display/keypad controller?)
![](4000ssi.jpg)