Sennheiser EK 500 G2 - Manual (Page 29)

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when using multi-channel systems. Finally, UHF frequency
ranges are being approved all over the world for
radiomicrophone usage – in some countries licence-free.
Squelch
Pilot tone squelch
The ew 500 G2 transmitters add a pilot tone to the audio
signal. The receiver checks incoming audio signals to see if
the pilot tone is present. In the absence of the pilot tone,
the receiver’s audio output will remain muted, even if a
strong RF signal is present.
This prevents strong interfering signals from causing
hissing noise in the receiver when the transmitters are
switched off.
In order to benefit from this feature, the pilot tone function
must be activated on both the transmitter and the receiver.
The receiver’s pilot tone function is factory-preset to “ON”
(= activated).
Field strength-depende nt squelch
Depending on the strength of the received RF signal, the
receiver’s audio output is opened or muted. Via the
“
SQELCH ” menu of the receiver, the squelch threshold can
be adjusted in three steps (LO, MID, HI).