Azden UHF Performance Series Manuel utilisateur

UHF PERFORMANCE SERIES

TRUE DIVERSITY SYSTEMS

AZDEN CORPORATION

147 New Hyde Park Road

Franklin Square, NY 11010

516.328.7500 vox  516.328.7506 fax

[email protected]  www.azdencorp.com

OWNERS MANUAL

411UDR  411DRH

41HT  41HT3  41XT  41BT

Thank you for purchasing AZDENS PERFORMANCE SERIES wireless system. UHF wireless

systems yield a better signal to noise ratio and improved frequency response over VHF systems. The

UHF band is less crowded than VHF thus giving you less likelihood of interference. This manual covers

the 411UDR and 411DRH receivers and the 41BT, 41XT and 41HT transmitters.

Receiver Descriptions: The 411UDR and 411DRH are crystal controlled, PLL synthesized receivers with 63

on-board user selectable frequencies with a range of 794MHz to approx. 806MHz. They are true diversity,

containing two separate receivers, each operating on the same frequency. The transmitters output signal is

monitored constantly by a diversity circuit, which switches automatically to the receiver with the stronger RF

signal. This allows wireless performance that is virtually drop-out free, even under the most adverse condi-

tions. Both receivers feature a 1/4-inch and XLR output jacks and volume adjustment.

(1) Power LED and on/off switch (411DRH only)

After plugging in the 411DRH, depress the on/off switch to turn unit on and illuminate the Power LED.

The 411DRs Power LED will illuminate as soon as the unit is plugged in.

(2) Antenna A-B LEDs

When the transmitter is turned on and is in reception range of the receiver, either the A or B LED will light up

RED, depending on which receiver circuit is getting the strongest signal from the transmitter. Flickering

between the A and B LED is a normal function of the system.

(3) Peak LED

These will flash if the audio component of the incoming signal is approaching distortion. The 411DRH has a 7

segment LED display to show the incoming audio signal from -20 to + 6 dB.

(4) Antennas, antenna connections

On both the 411UDR and 411DRH, position the antennas vertically for best reception. On the 411UDR, when

not in use put the antennas in the holder to avoid damage. On the 411DRH the antennas are connector

mounted (BNC) so that the supplied antennas can be disconnected and/or removed.

(1)

15678109

41234

(5) 12 Volt Input

Plug the supplied AC adapter into the 12 volt input on the receiver then into an AC electrical outlet. Use only

the adapter supplied, as other adapters may damage the receiver.

(6) Output Adjustment

Rotate this knob clockwise to increase, or counterclockwise to decrease volume level.

(7) Output (unbalanced)

Using a suitable audio cable (not supplied) connect the 1/4-inch phone jack end to the audio output on the

receiver, and connect the other end of the cable to the suitable mic/line input of an audio mixer or amplifier.

(8) Output (balanced)

Using a suitable audio cable (not supplied) connect the XLR connector to the audio output on the receiver, and

connect the other end of the cable to the suitable mic/line input of an audio 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 (numbered 0-8) within the selected group. Any

receiver/transmitter pair must be on the same group and frequency to operate properly. Be sure that both the

transmitter and the receiver are OFF before selecting/changing the frequency.

When using more than one system, all receivers and transmitters must be set to the same group to avoid

intermodulation distortion while all transmitter/receiver pair must be on different frequencies.

(11) Rack ears

If you wish to use one or two 411DRHs in a standard 19" rack you must attach the rack ears (HR-1 or HR-2 

purchased separately) by attaching the ears with the four machine screws (two per side near front). The HR-2

also requires the attachment of a joining plate underneath the two units.

(2)

HR-1

The following feature is for the 411DRH only.

(12) Squelch adjust

This adjusts the point at which the receiver will shut off or squelch the incoming radio signal when it

becomes too weak. Turning the control clockwise raises the threshold, allowing more signal to enter, and

turning the control counter-clockwise 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.

To change the frequency that a transmitter, receiver pair is already on

YOU MUST TURN OFF BOTH TRANSMITTER AND RECEIVER OFF FIRST!

System #1

Group Channel

System #2

Group Channel

System #3

Group Channel

System #4

Group Channel

Receivers 2 4 25 26 27

Transmitters 2 4 25 26 27

(3)

HR-2

Transmitter Descriptions:

41HT Handheld microphone transmitter with 63 on-board user selectable UHF frequencies. Ideal for all vocal

applications. The 41HT3 is identical in RF performance. It features an Audix microphone element.

(1) To install batteries, turn the bottom half of the mic case counter-clockwise until it is completely off.

(2) Insert two fresh alkaline AA batteries into the compartment. Make sure battery polarity is correct.

(3) Frequency select

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

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 switch

The bottom position is Off and the top position is On. Turning the transmitter Off will cause the receiver

to mute due to the tone squelch circuitry at the receiver. This allows the mic to be handled with no noise.

(5) LED Indicator turns green when turned on. This LED will also turn red to indicate that the battery level is

low and the batteries must be changed.

(6) The antenna attaches to the bottom of the microphone. It is screwed on clockwise and should be snug.

(4)

41BT body-pack transmitter with 63 on-board user selectable UHF frequencies. Ideal for use with lavaliere

and headset microphones. The MP-1 instrument cable will also allow you to use the 41BT with electric guitars

and basses. Please note: For use with instruments the gain structure of the 41BT must me modified at the

factory.

(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 allows you to select any of seven frequency groups (numbered from0-6). The channel knob

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

(4) 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 due to the tone squelch circuitry at the receiver. This allows the microphone to be handled with no noise.

(5) LED Indicator turns green when turned on. This LED will also turn red to indicate that battery level is low

and the battery must be changed.

(6) Audio input Level Control enables you to adjust the input level of the microphone or musical instrument.

Turn clockwise to increase, or counter-clockwise to decrease the input level. A small screwdriver is supplied

to make these adjustments. The level control is factory-preset in the center position.

(5)

41XT plug-in XLR transmitter with 63 on-board user selectable UHF frequencies. Ideal for use with dynamic

microphones with XLR output.

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

allows you to select any of nine frequency channels (numbered from 0-8) within the selected group.

(4) Power and Audio switches

The power On and Off switch enables and disables all transmitter functions while the Audio switch On

and Off turn just the transmitters Audio signal on and off. Switching the Audio to Off will cause the

receiver to mute due to the tone squelch circuitry in the receiver. This allows the microphone to be handled

with no noise.

(5) Audio input LEVEL control

This enables you to adjust the input level of the microphone. Turn clockwise to increase, or counter-clockwise

to decrease the input level. A small screwdriver is supplied to make adjustments.

(6)

(6) LED INDICATORS

The POWER LED turns green when power is turned On or red if battery level is low. If this LED lights up

red replace the battery.

The AF PEAK LED lights up if the input level is set to high, indicating the onset of distortion. Lower the

input level so that the AF PEAK LED lights only occasionally.

To plug the 41XT onto a microphone (low impeadance with XRL connector) first make certain the the

locking-ring is turned fully up (rotate counter-clockwise). Then plug the 41XT fully into the microphones

XLR connector and tighen by rotating the ring fully down (clockwise).

OPERATING THE SYSTEM:

Because this a frequency agile system, meaning that you choose the frequency of both the transmitter and

receiver via the group and channel controls, we cannot stress enough that any transmitter/receiver pair that you

want to transmit and receive on MUST BE SET 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 MUST TURN OFF BOTH

TRANSMITTER AND RECEIVER FIRST!

Do not place the receiver on a metal surface, and avoid obstructions between the receiver and transmitter,

since this could degrade the performance of the equipment.

First, make sure that the power to all your components is turned off. Connect an audio cable from the output of

the receiver (1/4 or XLR) to a mic/line input on your audio mixer or amplifier. Plug the receivers AC adapter

into the 12V input jack on the receiver and then plug it into the AC electrical outlet. With the volume of your

mixer or amplifier set to minimum level, turn your systems power on. Turn on the transmitter(s). Make sure

all LEDs on the receiver(s) and transmitter(s) are operating as described in the preceding pages. Now set the

receivers volume to the midway point and adjust the volume level on your mixer or amplifier.

(7)

41BT with Lavaliere or Headset:

With someone talking into the microphone, turn the volume on the mixer or amplifier to the desired level. If

there is too much, or not enough gain, lower or raise the volume on the receiver. If the sound is distorted,

lower the input gain on the transmitter.

41BT with Instrument cable for electric guitars or basses (MP-1):

Plug the cable into the guitar or bass. Set the instrument volume to the midway point. While playing the

instrument, turn the volume on the mixer or amplifier to the desired level. If there is too much, or not enough

gain, lower or raise the volume on the receiver. If the sound is distorted, lower the input gain (6) on the

transmitter.

41XT: With someone talking into the microphone, turn the volume on the mixer or amplifier to the desired

level. If there is too much, or not enough gain, lower or raise the volume on the receiver. If the sound is

distorted, lower the input gain on the transmitter.

41HT:

With someone talking/singing into the microphone, turn the volume on the mixer/amplifier to the desired

level. If there is too much, or too little gain, adjust the volume on the receiver. If the sound is distorted, move

the microphone further away from the sound source. Make sure that the LED is green when the mic/transmit-

ter is turned On. When the battery is low, the LED turns red indicating that the battery needs to be changed.

NOTES:

- All Performance Series transmitters will work continuously for approximately 6-8 hours using an

alkaline battery.

- Remove the battery if the transmitter will not be used for a long period of time.

- Do not use or store the system in areas of high temperatures or humidity.

- Do not use this system near a broadcast station, airport, or airplanes, it may cause interference. If you

are interfering with other transmissions you must turn off the system.

- These systems contain no user serviceable parts. If unauthorized service is performed it may void the

warranty.

(8)

Specifications

Overall:

Frequency Range: UHF 63 ch.(793-806MHz)

Frequency Response: 20Hz to 20kHz

Audio Distortion: less than 1%

Dynamic Range: better than 100dB

S/N Ratio: better than 95dB

Operating Temperatures: 0 to 45

Operating Range: 100m under ideal conditions

Oscillator: PLL synthesized

Tone Squelch Frequency: 32.768kHz

Diversity Type: True Space Diversity

41BT Transmitter:

Type of Emission: FM

Antenna: External Antenna

Pre-emphasis: 50 ms

MAX Input Level: -10dBm(Mic) +7dBm(MP-1)

Microphone Unit: Lav or Headset

RF Output Power: 15mW (50mW MAX)

Input Impedance: 2.2K (Mic) 680K (MP-1)

Audio Adj Range: m/2

Battery: 9V

Battery Life: 6 to 8 hours with Alkaline Battery

Dimensions: 100(H) 62(W) 22(D) mm

Weight: 92g (without battery)

(9)

FCC Notes:

These systems conform to part 74 and part 15 of the FCC rules, and you should contact the FCC office for

filing forms.

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