Operation Manual

5
• Available in the followingfrequencies: 470-542MHz (LDU 504.7/LDU 505.1/LDU 305.1/LDU 304.7)
Please note: The use of the wireless microphone system may require a license, depending on the country of use. For detailed information
please contact the relevant authority in your country.
Pilot tone
The pilot tone function protects a wireless microphone system against interference, for example, unwanted signals from other radio trans-
mission systems. The transmitter adds a second, inaudible signal (the pilot tone) to the actual signal which is to be transmitted. The receiver
identifies it as the matching pilot toneand frees the associated signal. Signalswithout a matching pilottone remainmuted.
Included
LDU30xHHD:Receiver plus hand-held transmitter with dynamic capsule (cardioid), power supply, 2 x AA batteries, audio cable, manual
LDU30xBPH:Receiverplus pockettransmitterandheadset(black),powersupply,2xAAbatteries,audiocable,manual
LDU50xHHD:Receiver pluspockettransmitter and guitar cable,power supply,2 xAA batteries,audio cable, manual
LDU50xBPH: Receiver plus pocket transmitter and Lavalier microphone, power supply, 2 x AA batteries, audio cable, manual
CONNECTIONS, OPERATING AND DISPLAY ELEMENTS
RECEIVER
On/off switch. Press and hold the button for approximately 1 seconds to turn the device on or off.
CHANNEL DISPLAY
Illuminated LC display to show the radio channel.
CHANNEL + / -
Push buttons to select the radio channel 01 to 12. Toestablish a wireless connection between the transmitter and the receiver, the radio
frequency on both machines must match (synchronisation process as described under point 6. ASC).
1 2 3
7
5
4
9
8
9
6
1
POWER
2
3