The P-NGen can be connected to the line level input of most audio-frequency induction loop amplifiers. It has a fixed level output of approx. 400mV RMS and a crest factor of approx. 4:1.  The following leads are available for connecting the P-NGen to a PDA Range induction loop system:-  AL1: 3.5mm jack to 3.5mm jack lead AL2: 3.5mm jack to double phono lead AL3: 3.5mm jack to pre-cut end lead All leads are 10m long.  

For customers wishing to make their own connection leads, please note that TIP = Audio+; Ring = Audio -; SCREEN = internal ground.

The FoSmeter can be used to accurately measure the magnetic field strength of an induction loop system. It is calibrated at manufacture for accuracy and linearity using a calibrated magnetic field and includes 10 LEDs laid out in 3dB increments. These LEDs indicate the magnetic field strength relative to 100mA/m (i.e. 0dB) and their response is fast attack and slow decay in line with peak programme meter type instruments.  Two switches are also provided, a normal/A-Weight FILTER switch and high/low GAIN switch.

Connect the P-NGen Pink Noise Generator to the amplifier’s line level input.

Measure the field strength throughout the covered area using the FoSmeter Magnetic Field Strength Meter. If it is between -6 and +6 you are ok