User Manual

4 Operating Notes

4.5 Replacing Batteries

Refer to fig. 5.

4.6 Microphone Technique

4.6.1 C 417 L, CK 55 L

Lavalier Microphones

4.6.2 4.2 C 420 L, C 444 L

Head-worn Microphones

4.7 Multichannel Systems

In LOCK mode, the display constantly indicates the current battery capacity as a string of bars below the

frequency readout.

If the "BATT" label starts flashing, a dash appears instead of the bars, and the status LED changes to

red, replace the batteries or charge the BP 4000 battery pack as soon as possible.

You can check the remaining battery capacity at any time by turning the jog switch briefly to the left or

right one to three times (depending on the currently active screen). The battery capacity will be displayed

in hours and as a string of bars.

1. Fix the microphone to the H 40/1 lavalier clip or H 41/1 tie pin referring to the microphone’s instruction

manual.

2. Clamp the microphone on your clothing as close as possible to your mouth.

Remember that gain-before-feedback will be the higher the smaller the distance between the micro-

phone and the mouth!

3. Make sure to aim the microphone at your mouth.

Refer to the user’s manual of the respective microphone for instructions on how to use head-worn micro-

phones.

If reception on the selected carrier frequency is disturbed, increase or decrease the carrier frequency by

at least 50 kHz or one or two Subchannels on each transmitter and receiver.

This is necessary to provide the minimum frequency spacing required for intermodulation-free multi-

channel operation.

To clean the transmitter surfaces, use a soft cloth moistened with water.

5 Cleaning