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The

 51BT

 body-pack transmitter has 63 user selectable UHF frequencies and is ideal for lavaliere and headset

microphones. The optional MP-1H instrument cable allows the 51BT to work with electric guitars and basses.

(1) Open the battery compartment lid by sliding it down and raising it.

(2) Insert one fresh alkaline 9-volt battery into the compartment. Make sure battery polarity is correct.

(3) Frequency select:

The group knob (left) allows you to select any of seven frequency groups (numbered from 0-6). The channel

knob (right) allows you to select nine frequency channels (numbered 0-8) within the selected group. Use the

flat end of the provided tool to adjust these settings.

(4) Audio input Level Control:

Enables you to adjust the input level of the microphone or musical instrument. Turn clockwise to increase, or

counterclockwise to decrease the input level. Use the 

+

 end of the provided tool to adjust this setting. The

level control is factory-preset in the center position.

(5) Power and standby switches:

The power “On” and “Off” switch enables and disables all transmitter functions while the audio switch “On”

and “Standby” turn the audio off and on. Switching the transmitter to “Standby” will cause the receiver to

mute using the tone squelch circuitry in the receiver. This allows the microphone to be handled with no noise.

(6) LED Indicator:

Turns green when the transmitter is turned on. This LED will also turn red to indicate that battery level is low

and the battery must be changed.

(5)

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Summary of Contents for 411UDR

Page 1: ...ES TRUE DIVERSITY SYSTEMS AZDEN CORPORATION 147 New Hyde Park Road P O Box 10 Franklin Square NY 11010 516 328 7500 vox 516 328 7506 fax azdenus azdencorp com www azdencorp com OWNER S MANUAL 411UDR 5...

Page 2: ...s feature a 1 4 inch and XLR output jacks and volume adjustment 1 Power LED and on off switch 511DRH only After plugging in the 511DRH depress the on off switch to turn unit on The 411UDR s Power LED...

Page 3: ...mixer or amplifier 9 10 Frequency select The group knob 9 allows you to select any of seven frequency groups numbered from 0 6 The channel knob 10 allows you to select any of nine frequency channels...

Page 4: ...ontrol counterclockwise lowers the threshold letting in less signal When operating multiple systems all receivers and transmitters must be on the same group Example 4 systems operating simultaneously...

Page 5: ...b allows you to select any of nine frequency channels numbered 0 8 within the selected group Replace bottom half of microphone case and turn clockwise until snug DO NOT OVER TIGHTEN 4 2 Position switc...

Page 6: ...to adjust these settings 4 Audio input Level Control Enables you to adjust the input level of the microphone or musical instrument Turn clockwise to increase or counterclockwise to decrease the input...

Page 7: ...0 8 within the selected group 4 Power and Audio switches The power On Off switch enables and disables all transmitter functions while the Audio On Off switch turns just the transmitter s Audio signal...

Page 8: ...T TO THE SAME FREQUENCY Additionally multiple systems used in the same proximity must ALL BE ON THE SAME GROUP SELEC TION To change the frequency that a transmitter receiver pair is already on YOU MUS...

Page 9: ...eiver If the sound is distorted lower the input gain on the transmitter 51HT With someone talking singing into the microphone turn the volume on the mixer amplifier to the desired level If there is to...

Page 10: ...rsity Type True Space Diversity 51BT Transmitter Type of Emission FM Antenna External Antenna Pre emphasis 50 s MAX Input Level 10dBm Mic 7dBm MP 1 Microphone Unit Lav or Headset RF Output Power 15mW...

Page 11: ...ry 9V Battery Life 6 to 8 hours with Alkaline Battery Dimensions 40 x 40 x 99 L mm Weight 152g without battery UHF FREQUENCY CHART C H A N N E L GRP 0 1 2 3 4 5 6 7 8 0 794 500 795 750 797 750 798 000...

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