IMSI-TRACK TAC
Identity and Direction, on the Move.
A backpack- and vehicle-portable IMSI intelligence unit with integrated direction finding. Eight capture channels detect IMSI / IMEI across 2G–5G NSA while a DF array points to the source within 2° bearing accuracy, in a MIL-STD-810H case that runs ≥ 5 hours on battery.

Bring the Sensor to the Target
Some operations cannot wait for a fixed install. IMSI-TRACK TAC puts identity capture and direction finding on an operator's back or in a vehicle, turning a sweep, a stakeout or a cordon into live cellular intelligence — passively by default, actively when authorized.
8-Channel Capture
Detects and identifies devices across 2G / 3G / 4G / 5G NSA on eight simultaneous channels, extracting IMSI, IMEI, TMSI and RSSI within 30 seconds of a device transmitting.
Integrated Direction Finding
A multi-element DF array resolves bearing to a target to within 2°, and moving-baseline triangulation locates a device to 5–15 m over a short walk or drive.
Passive & Active Modes
Operates passively (receive-only) for covert survey, or in authorized active mode for faster acquisition, selectable per operation with full audit logging.
Field-Ready Autonomy
MIL-STD-810H, IP67 case, ≥ 5 h battery, 12–28 V DC vehicular power, and a simplified tablet UI that logs every capture with time, bearing and location for later analysis.
The Result
- 8 simultaneous capture channels · IMSI/IMEI/TMSI/RSSI · 2G–5G NSA
- DF bearing to 2° · moving-baseline geolocation 5–15 m
- Passive covert or authorized active mode · full audit trail
- ≥ 5 h battery · MIL-STD-810H / IP67 · < 12 kg with batteries
Technical Specifications

Capture
| Channels | 8 simultaneous |
| Technologies | 2G / 3G / 4G / 5G NSA |
| Identifiers | IMSI · IMEI · TMSI · RSSI |
| Capture time | < 30 s from device transmit |
| Modes | Passive (covert) · active (authorized) |
Ordering Information
Part numbers and configuration options
| Part Number | Description | Availability |
|---|---|---|
| SI-ITT-BP8 | 8-channel covert IMSI unit with DF | Standard |
| SI-ITT-BAT | Spare hot-swap Li-ion battery | Standard |
| SI-ITT-SW-SYNC | Sync-to-PRO/ML license | Standard |
| SI-ITT-ANT-EXT | External whip antenna kit | Optional |
| SI-ITT-VMK | Vehicular mount + DC harness | Optional |
| SI-ITT-CHG | Dual-bay battery fast charger | Optional |
Implementation Process
Site Survey
- Operating-area RF sweep
- Target-band selection
- Passive vs active mode decision
- Legal authorization check
System Design
- Backpack vs vehicular configuration
- DF baseline plan
- Sync-to-PRO/ML integration
Installation
- Case setup
- DF array assembly
- Tablet pairing
- Power connection
Calibration
- DF bearing calibration
- Capture-channel check
- GNSS/NTP time sync
Training
- Operator DF technique
- Passive/active mode discipline
- Capture logging and export
Go-Live
- Begin survey
- Live captures with bearing and location
- Sync to central intelligence
Typical deployment timeline: 4-8 weeks depending on facility size and complexity
Frequently Asked Questions
Capture Identity Anywhere the Target Moves
Request a demonstration of covert capture with integrated direction finding.
IMSI-TRACK PRO
pair mobile captures with the fixed detection and geolocation baseline.