Sennheiser EM 3532-U Instructions For Use Manual page 23

If no transmitter is found, the search tuning stops at the upper or lower limit of the
24 MHz frequency window. The display then indicates:
If a transmitter with a strong enough RF signal (higher than the squelch level, but at least
5 μV) is found, this frequency is indicated on the display. In addition, the deviation and the
RF level of the received signal are indicated via the bargraphs. You can now monitor the
sound signal with headphones.
Information on how to store the new receiving frequency is given in chapter 12.
Note
If you wish to acquire data from your transmitters in use via this menu, the
modulation of the transmitters must not be too high, otherwise frequency deviations
may occur. The solution to this problem is simple: do not talk into the transmitter
when the search tuning is activated. In general, it is best to put the transmitter
down!
You can discontinue the programming of this menu by briefly (!) pressing the
display briefly indicates "ESC" and then switches back to the standard display. The previous settings
are kept.
Note
In this menu, the display does not switch back to the standard display after 30
seconds. The search tuning between the two limits of the frequency window takes
about 12 – 15 seconds, and you should have time enough to write the new frequency
down or to compare it with a frequency table.
Press the SET button to leave this menu!
SET button. The
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