Rugged, High-Performance GPR Controller
The SIR® 4000 is GSSI’s first high-performance GPR data acquisition system designed to operate with analog and digital antennas. This evolutionary step allows for true versatility and flexibility by supporting a wide range of users across numerous applications.

Specifications:
SYSTEM
ANTENNAS Compatible with all GSSI antennas
NUMBER OF CHANNELS Records data from 1 single-frequency antenna or 1 dual-frequency antenna
DATA STORAGE 32 GB Flash, 1 GB RAM
DISPLAY Enhanced 10.4″ LED display with internal high brightness, Active matrix 1024 x 768 resolution and 32-bit color
GPS Data logged internally
DISPLAY MODES Linescan, Linescan plus O-scope, Wiggle trace Full 3D, 256 color bins are used to represent the amplitude and polarity of the signal
ENVIRONMENTAL RATING IP65
DATA ACQUISITION
DATA FORMAT RADAN® (dzt)
OUTPUT DATA FORMAT 32-bit
SCAN INTERVAL User-selectable, up to 400 scans/sec
NUMBER OF SAMPLES PER SCAN 256, 512, 1024, 2048, 4096, 8192, 16384
OPERATING MODES Continuous (time) or survey wheel (distance triggered) or point mode
TIME RANGE 0-20,000 nanoseconds full scale, user-selectable Gain: manual adjustment from -42 to +126 dB Number of segments in gain curve is user-selectable from 1 to 8
STANDARD REAL-TIME FILTERS Infinite Impulse Response (IIR) – Low and High Pass, vertical and horizontal – Finite Impulse Response (FIR) – Low and High Pass, vertical and horizontal
ADVANCED REAL-TIME FILTERS Migration, Surface Position Tracking, Signal Noise Floor Tracking, Adaptive Background Removal
AUTOMATIC SYSTEM SETUPS Storage of an unlimited number of system setup files for different survey conditions and/or antenna deployment configurations
AUTOMATIC ANTENNA RECOGNITION Automatic recognition of Smart Antennas to allow maximum compliant transmit rate
LANGUAGES English, Chinese, Japanese, French
OPERATING
OPERATING TEMPERATURE -20°C to 40°C external (-4°F to 104°F)
BATTERY Inspired Energy Ni2040ED, 3 hour runtime (battery life dependent on level of display brightness)
TRANSMIT RATE Up to 800 KHz (International) US/Canada and CE rates depend on antenna model
INPUT/OUTPUT
AVAILABLE PORTS Antenna inputs analog and digital (one at a time), DC power input, Serial RS232 (GPS port), Accessory connector, HDMI video output, Ethernet to PC, USB 2.0 port, mini USB
ETHERNET RJ45 100BT Ethernet
USB HOST USB host with external keyboard support, USB flash drive support and USB HUB support
MECHANICAL
DIMENSIONS 14x10x2.75 in (36x25x7 cm)
WEIGHT 10 lbs (4.53 kg) including battery
RELATIVE HUMIDITY <95>