Sennheiser SYSTEM 2015 Specifications download pdf (Page 42)

Selecting the setting “LO” reduces the squelch threshold, selecting the set-

ting “HI” increases the squelch threshold. Adjust the squelch threshold –

with the transmitter switched off – to the lowest possible setting that sup-

presses hissing noise.

Important notes:

If the squelch threshold is adjusted too high, the transmission range

will be reduced. Therefore, always adjust the squelch threshold to the

lowest possible setting.

When in the setting mode of the “

SQELCH

” menu, pressing the



button (DOWN) for more than three seconds will switch off the

squelch. “SQ.OFF” appears on the display. If no RF signal is being recei-

ved, hissing noise will occur. This setting is for test purposes only.

Releasing channels for the user

ACCESS

Transmitter and receiver have nine channel banks with up to 20 switchable

channels each. Via the “

ACCESS

” menu, you can restrict access to the chan-

nels by only releasing the channels to be available to the user.

Note:

The units are factory-preset so that all channels are available to the

user.

In order to rule out the possibility that channels are released which should

not be available to the user, we recommend that you first lock all channels

and then release individual channels one after the other.

For multi-channel operation, we recommend that you only release the chan-

nels in one channel bank. Only use the channel banks “1” to “8” since these

accommodate fixed preset frequencies which are intermodulation-free.



To lock all channels, select “ERASE” from the “

ACCESS

” menu.



Press the

SET

button to confirm your selection.

All channels are now locked.

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Sennheiser SYSTEM 2015 Specifications Page 42