Many loop installers use Contacta’s professional audio-frequency induction-loop Field Strength Meter (FSM) to determine the degree of background noise (magnetic interference) that may be present in a room or building to be looped. Ideally you want any magnetic interference to be -47 dB or less.
In addition, they use this Field Strength Meter to set and verify that the loop system output meets the IEC 60118-4 standard for loop systems in regards to correct signal strength (peaks 0 to +3 dB), flatness of frequency response between 100 and 5,000 Hz (+-3 dB) and flatness of signal strength throughout the listening area (+-3 dB).
- Small size (5.5″ x 3.6″ x 1.1″) s0 it is easy to carry around and use. Weighs just 8 oz.
- Operates on 9 volt battery (included)
- Comes with padded, tough plastic carrying case
- 2 year warranty
- Here is the Field Strength Meter Specification Sheet
- Also, read the Contacta Field Strength Meter Manual
Order the Contacta professional audio-frequency induction-loop Field Strength Meter with small case now for just $689.00.
SPECIAL: Purchase the FSM/TSG Kit and SAVE $$$!
For setting up loop systems, the Contacta audio-frequency Test Signal Generator is also used in conjunction with Contacta’s professional audio-frequency induction-loop Field Strength Meter. You can purchase both the Contacta audio-frequency induction-loop Field Strength Meter (FSM) and the Contacta audio-frequency Test Signal Generator (TSG) kit and save!
Bonus: when you purchase both together, you also get an audio cable for the TSG, an XLR to 3.5 mm line input patch-cable for the FSM and a large carrying case to hold both units—all for just $1,183.00.