Example with a mobile phone setup; Wi-Fi + 4G phone connection
enabled.
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v1.0 January. 2022
The LCA1 microphone comply with a field strength of 3V/m: domestic grade
immunity to radio signals. That means that if a mobile phone transmit 2
Watts of radio power and is about 2,7 meters from the microphone, the radio
interference or “noise” from the mobile phone will not infl uence the recorded
signal ( immunity ).
Better immunity performance is likely for a LCA1 Microphone (industrial grade
or better). Testing for the actual limit is very expensive at a specialised test
centre. We will only investigate the immunity limit upon suffi cient demand.
Try to “stress” your setup before recording, by streaming a video using
mobile data close (1 to 50cm) from your recording gear; all wires act as
antennas, so it is a way to “find” weak links in your complete recording setup.
Alternatively you can perhaps purchase/lease a relatively cheap field
strength meter, to find RF-transmitters if you experience problems.
