Overview
The ANT-4 is Zonge’s very low-noise induction magnetometer for MT and CSEM programs that need confident low-frequency magnetic measurements without the complexity of specialist cryogenic systems. It is built for rugged field deployment and is widely suited to production survey work where reliability matters as much as sensitivity.
Where It Fits
- Magnetotelluric surveys
- Controlled-source EM programs
- Low-frequency magnetic field measurements
- Field crews that need durable, repeatable sensor performance
Key Specifications
- Optimal frequency range:
100 uHz to 1 kHz - Sensitivity:
100 mV/nT - High-pass corner:
0.25 Hz - Low-pass corner:
1 kHz - Length:
1263 mm - Weight:
5.3 kg - Power supply:
+/-7.5 V minto+/-15 V max - Supply current:
4.5 mA - Standard connector:
PT07A-12-8S
Why Customers Choose It
The ANT-4 is the strong all-around choice when a project needs dependable low-noise MT or CSEM magnetic data across a broad field campaign. It balances low-frequency performance, proven field durability, and practical deployment.