This file is the instruction manual for ELECTRO-METRICS ALP-11 Loop Antenna. The antenna is designed to obtain magnetic field measurements from 20 Hz to 50 kHz. It can be used up to 500 kHz with any 50 instrument since it is designed and calibrated for use in a 50 system. The antenna is suited for use in compliance testing to MIL- STD-461A/B/C, CISPR standards, plus other government and federal standards.
This manual provides instructions for using the Electro-Metrics ALP-11 loop antenna, designed for magnetic field measurements from 20 Hz to 50 kHz. It includes details on calibration, mounting, and usage in compliance testing. The antenna is calibrated for 50 Ω systems and features a Faraday shield to minimize electric field interference.
Technical specifications include a frequency range of 20 Hz–50 kHz, BNC output connector, and mechanical dimensions of 635 mm diameter and 686 mm height. The manual also covers warranty terms and usage limitations, including a note that the antenna can be used up to 500 kHz with 50 Ω instruments.
| Frequency Range | 20 Hz–50 kHz (calibrated) |
|---|---|
| Impedance | 50 Ω |
| Output Connector | BNC |
| Outside Diameter | 635 mm (25") |
| Height | 686 mm (27") |
| Weight | 0.5 kg (1.1 lbs) |
The ALP-11 Loop Antenna is designed to obtain magnetic field measurements from 20 Hz to 50 kHz.
The antenna is designed to work into a 50 Ω system and the calibration chart is based on this use.
The base plate has a 5/8-11 threaded receptacle for mounting to the Model TRI-136 Tripod, allowing vertical or horizontal orientation.