Care and maintenance – Sennheiser Freeport User Manual

Page 11

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10

Adjusting the squelch threshold

Interference due to other transmission links can be eliminated as
follows:

̈

Switch off the transmitter. The receiver should no longer receive a
signal.

̈

If the receiver still receives a signal, use the

SQUELCH

control

¹

to

increase the squelch threshold so that the signal will no longer be
received. If the signal cannot be eliminated in this way, set the
transmitter and the receiver to a different channel.

̈

Switch on the transmitter again and check if the receiver receives
the transmitter signal.

Note:

If the squelch threshold is adjusted too high, the transmission range
will be reduced. Therefore, always adjust the squelch treshold to the
lowest possible setting.

Selecting a channel

Transmitters and receivers have four channels respectively with
intermodulation-free frequencies.

Note:

These frequencies are different to those in evolution systems and
freePORT systems should not be used together with evolution sys-
tems without great care.

̈

Always set the transmitter and the receiver to the same channel.

Adjusting the transmitter sensitivity

̈

Use the

GAIN

control

¾

on the SK 2 bodypack transmitter to adjust

the sensitivity so that even during the loudest passages the

AF PEAK

LED

on the EM 1 receiver does not light up.

Care and maintenance

Use a slightly damp cloth to clean the units from time to time.

Note:

Do not use any cleansing agents or solvents.

To clean the SKM 3’s sound inlet basket:

̈

Unscrew the sound inlet basket

³

(turn counterclockwise) and

remove it.

̈

Remove the foam insert and use a slightly damp cloth to clean the
sound inlet basket.

̈

Reinsert the dry foam insert, replace the sound inlet basket on the
SKM 3 and screw it tight.

¹

³

freeport_514013_0808_Sp5.book Seite 10 Mittwoch, 26. November 2008 2:16 14

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