Com-Power AL-130R 9 kHz to 30 MHz Active Loop Antenna

Key Features At A Glance

• Frequency range of 9 kHz to 30 MHz for low-frequency EMI compliance measurements
• Built-in low-noise preamplifier increases measurement sensitivity and signal-to-noise ratio
• Battery operated with rechargeable 6V NiMH pack; 10-12 hour average battery life
• Front panel LED indicators for RF ON/OFF, power, battery low, amplifier saturation, and charging status
• Supports both Electric field (E-Field) and Magnetic field (H-Field) measurements with factors provided for each
• Individually calibrated using NIST Traceable equipment per IEEE 291; calibration data and certificate included
• Optional fiber optic remote monitor/control via RAI-100 Remote Antenna Interface (up to 30 meters)
• 19 inch x 19 inch (0.5 m x 0.5 m) loop with electrostatic shield, constructed of powder-coated aluminum

The Com-Power AL-130R is an Active Loop Antenna covering a frequency range of 9 kHz to 30 MHz, featuring a 19 inch by 19 inch (0.5 m x 0.5 m) loop with electrostatic shield. The antenna integrates a built-in low-noise preamplifier that increases overall measurement sensitivity and improves the signal-to-noise ratio of the measurement system. Power is supplied by a rechargeable 6V NiMH battery pack, with a supplied charger/power adapter available as an alternative power source. Front panel LED indicators provide at-a-glance status for RF ON/OFF, power, battery low, amplifier saturation, and charging.

The AL-130R is intended for use as an EMI test antenna for qualification-level regulatory compliance measurements per most commercial product test procedures, including ANSI C63.4 along with CISPR, EN, and ETSI standards. In typical use, the antenna is positioned vertically with the center-point of the loop elevated one meter above ground, then rotated about its horizontal and vertical axis to achieve the maximum reading at each frequency. The AL-130R can be used for both Electric field (E-Field) and Magnetic field (H-Field) measurements, with antenna factors provided for both measurement types.

Since 1992, ValueTronics has served regulated industries, EMC compliance laboratories, and product certification programs with verified equipment backed by named accountability — distinct from drop-shippers and pass-through brokers who never physically handle the instruments they list.

Product Core & Specifications

Specification	Value
Product Name	Active Loop Antenna
Frequency Range	9 kHz to 30 MHz
Loop Size	19" x 19" (0.5 m x 0.5 m)
Nominal Impedance	50Ω (output port)
AC Adapter Output Power	6 VDC (unregulated), 500 mA
Battery Type	6 VDC NimH (rechargeable)
Average Battery Life	10-12 hours
E-Field Antenna Factors	13.4 to 16.4 (average: 14.9) [dB(m-1)]
Saturation Level	>1 V/m / >120 dBμV/m (>2.65 mA/m) / >68.5 dBμA/m
Antenna Factor Variation	±1.5 dB
Sensitivity (typical)	-3 dBuA/m @ 10 kHz; -44 dBuA/m @ 1 MHz
RF Connector	BNC-type (female)
Specifications	ANSI C63.4, CISPR, EN, ETSI, etc.
Dimensions (H x W x D)	20.1" x 19.7" x 10.6" [51 x 50 x 27 cm]
Weight	5.5 lbs. [2.5 kg]

Important: Per ANSI C63.4-2014, use of an active loop antenna for compliance testing in a non-shielded environment is permitted ONLY if the saturation indicator is continuously monitored during the course of testing.Important: Per ANSI C63.4-2014, the use of an active loop antenna for compliance testing is permitted in a non-shielded environment ONLY if the saturation indicator is continuously monitored during the course of testing. Com-Power's Remote Antenna Interface (RAI-100) is recommended for this application and is sold separately.Important: The AT-220 Tripod is the recommended support for this antenna and is sold separately.Recommended pairing: use the Com-Power AT-220 Tripod for support — it provides adjustable loop center-point elevation from 0.95 to 1.35 meters to accommodate the standard one-meter compliance measurement height. For non-shielded environment testing, the optional RAI-100 Remote Antenna Interface enables remote saturation monitoring via fiber optic link up to 30 meters.

Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.