The Ampetronic CMR3 calibrated hearing loop measuring receiver for audio analysers is designed for measuring the performance of audio induction loop systems. The audio output is within ±0.25 dB over the frequency range and where used with a suitable audio analyser such as the Minilyser from Neutrik Ltd, the frequency response and field distribution of the magnetic field from any audio induction loop system can be plotted.

• Enables easy assessment of the system to the international induction loop standard IEC60118-4
• Accuracy to within 0.5dB
• 5 year warranty
• Compatible with most audio analysers

Magnetic field response

Frequency response

Gain stability

Output

Power

Physical

Accessories

3.5mm stereo plug to XLR plug adaptor cable supplied (1.5m length), audio cables for simple interfacing of audio devices to loop systems available separately.

DOWNLOADS

 NTI AppNote AFILS E UP32801-9 data sheet

 CMR3 lo res UP12801-15 CMR3 handbook

 Test Signals Zip file