Lectrosonics UH200d User Manual download pdf (Page 6)

OPERATING INSTRUCTIONS

TO ATTACH

Press firmly, listen for click.

Depress collar fully.

Hold the

transmitter

case and

rotate the

collar in the

direction

shown. Do

this over a

soft surface

as the

microphone

may pop off

suddenly

Click!

Pull on mic to insure locking.

TO REMOVE

Attaching the Microphone

1. Insert the UH200D into the selected microphone. Listen for

the “click” that indicates the UH200D has locked on to the

microphone. Pull on the mic to insure proper locking has

occurred.

2. Turn the power switch on and, if necessary, enable phantom

power and select the proper voltage for your microphone.

3. Hold the microphone as you will when you will be using it.

4. Position the microphone in the location you will use in actual

operation.

5. While speaking or singing

at the same voice level that will

actually be used, observe the MODULATION LEDs. Adjust

the AUDIO LEVEL control knob until the LEDs begin to light.

Start at a low setting where neither LED lights as you speak.

Gradually, turn the gain up until one LED lights, then the other.

The LEVEL LED lights when the audio level is about 20dB

below full modulation. The LIMIT LED lights when the limiter

begins to operate. There is over 30dB of limiting range without

overload above the LIMIT LED, so it is desirable that it lights

up occasionally during use.

6. Once the gain has been adjusted, the audio system audio can

be turned on to make level adjustments. Set the power switch

to the ON position and adjust the receiver and/or sound sys-

tem level as required. Please note, there will be a delay

between the moment the switch is thrown and the time

when audio will actually appear at the receiver output.

This intentional delay eliminates turn on thumps, and is con-

trolled by the pilot tone squelch control.

OPERATING TIPS

The AUDIO LEVEL control knob should not be used to control

the volume of your sound system or recorder levels. This gain

adjustment matches the transmitter gain with the user’s voice

level and microphone positioning.

If the audio level is too high -- both LEDs will light frequently or

stay lit. This condition may reduce the dynamic range of the

audio signal.

If the audio level is too low -- neither LED will light, or the LEVEL

LED will light dimly. This condition may cause hiss and noise in

the audio, or pumping and breathing in the background noise.

The first LED turns on 20dB below full deviation. The LIMIT LED

turns on at full deviation and indicates that the input shunt

compressor is operating. The input limiter will handle peaks over

30dB above full modulation, regardless of the gain control set-

ting. The limiter uses a true absolute value circuit to detect both

positive and negative peaks. The attack time is 5 milliseconds

and the release time is 200 milliseconds. Occasional limiting is

desirable, indicating that the gain is correctly set and the trans-

mitter is fully modulated for optimum signal to noise ratio.

Different voices will usually require different settings of the AU-

DIO LEVEL control, so check this adjustment as each new

person uses the system. If several different people will be using

the transmitter and there is not time to make the adjustment for

each individual, adjust it for the loudest voice.

ADJUSTING THE TRANSMITTER FREQUENCY

If you are experiencing interference from another signal on your

frequency, you may want to change the operating frequency of

your system. The left switch changes the operating frequency by

1.6 MHz per step and the right switch changes it 100 kHz per

step. If you are experiencing interference, change the operating

frequency in 100 kHz steps to find a clear channel. If it is not

possible to find a clear channel using the 100 kHz switch, return it

Frequency select switches, default position (8,8)

to its original position and change the 1.6 MHz switch by one click

then try the 100 kHz switch again.

To gain access to these switches, slide the access door open

with a fingernail.

Note: With the UDR200A receiver, these switches also appear

on the front panel of the receiver. Normally, you should set the

transmitter switches to match the receiver switch settings. The

switches are located on the rear panel of the UCR200D

receiver.

With the UDR200B receiver, the front panel LED character dis-

play will indicate the correct transmitter switch settings.

1 2 3 4 5 6 7 8 9 10 11 12

Comments to this Manuals

No comments

Lectrosonics UH200d User Manual Page 6

Comments to this Manuals

Related products and manuals for Accessories communication Lectrosonics UH200d