Table of Contents
Related Manuals for Lectrosonics UT400
Summary of Contents for Lectrosonics UT400
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Page 1: Operating Instructions
UT400 UT400 UT400 UT400 UT400 DIGITAL HYBRID FREQUENCY AGILE HAND-HELD TRANSMITTER FEATURING DIGITAL HYBRID WIRELESS TECHNOLOGY (US PATENT PENDING) OPERATING INSTRUCTIONS LECTROSONICS, INC. Rio Rancho, NM www.lectrosonics.com... - Page 2 UT400 LECTROSONICS, INC.
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Page 3: Table Of Contents
US. The specific concerns and needs brought up in these conversa- tions led directly to the development of the operational features offered on the UT400. Two hundred fifty six frequencies are user selectable in 100 kHz steps to alleviate interference problems in travelling venues. -
Page 4: General Technical Description
The Lectrosonics Digital Hybrid Wireless system (hereafter called Digital Hybrid) overcomes channel noise in a dramatically new way, digitally encoding the audio in the transmitter and decoding it in the receiver, yet still sending the encoded information via an analog FM wireless link. -
Page 5: No Pre-Emphasis/De-Emphasis
RF signal is present on the carrier frequency of the system. The UT400 extends this concept even further by ensuring that all transmitters in a system have differ- ent pilot tone frequencies so that even spurious RF from the wrong transmitters can’t open the receiver squelch. -
Page 6: Controls And Functions
LOCKED MODE The UT400 can be placed in a locked mode where neither the Power switch nor the Frequency Switches have any further effect on operation. This protects the unit from accidental power-off or misadjustment after it has been pre- pared for use. -
Page 7: Hiding The Power Led
Digital Hybrid, Frequency Agile, Hand-held Transmitter To enter locked mode, toggle the Power switch off and on again rapidly three times. (Each toggle must take no longer than two seconds and no more than ten seconds may elapse between successive toggles.) During the first two toggles, the Power LED will behave normally, blinking slowly red while the switch is in the off position to warn that the power will go off, then returning to normal battery status indication when the switch is on again. -
Page 8: Varimictm Controls
UT400 VARIMIC CONTROLS Caution - Due to the high RF levels surrounding the transmitter, the sound of the VariMic capsule may be temporarily affected if the metal windscreen is not in place. Always make the final decision about sound balance and quality with the windscreen in place. -
Page 9: Subsonic Noise Filter
-3dB @ 71Hz for normal operation. -20dB @ 50Hz SUBSONIC NOISE FILTER In addition to the tone controls, the UT400 also has a built in subsonic noise (or high pass) filter. This filter is fixed and cannot be 10Hz 100Hz... -
Page 10: Operating Instructions
Note: If you find that the Audio Level control is set to minimum and both Audio Level LEDs are glowing red, then it may be necessary to adjust the Preamp Level Control. This control is located under the UT400’s windscreen. Unscrew the windscreen and carefully lift it off the top of the unit. See the VARIMIC CONTROLS section for these adjustments. -
Page 11: Operating Notes
Different voices will usually require different settings of the Audio Level control, so check the Audio Level settings as each new person uses the UT400. If several different people will be using the same UT400 and there is not time to make the adjustment for each individual, adjust it for the loudest voice. -
Page 12: Troubleshooting
3) Sound system or recorder input is turned down. DISTORTED SOUND, MOTORBOATING OR BOTH 1) UT400 Audio Level Control set too high. Speak or sing into the UT400 and check the UT400 Audio Level LEDs and corresponding indicators on the receiver. -
Page 13: Specifications
Digital Hybrid, Frequency Agile, Hand-held Transmitter SPECIFICATIONS Operating frequencies: 537.600 to 607.900 MHz 614.100 to 793.500 MHz Frequency selection: 256 frequencies in 100 kHz steps RF Power output: 100 mW (nominal) Pilot tone: 25 to 32 kHz frequency; 5 kHz deviation Frequency stability: ±... -
Page 14: Service And Repair
You will save yourself time and trouble if you will follow the steps below: A. DO NOT return equipment to the factory for repair without first contacting Lectrosonics by letter or by phone. We need to know the nature of the problem, the model number and the serial number of the equipment. We also need a phone number where you can be reached 8 a.m. -
Page 15: Limited One Year Warranty
This warranty does not apply to used or demonstrator equipment. Should any defect develop, Lectrosonics, Inc. will, at our option, repair or replace any defective parts without charge for either parts or labor. If Lectrosonics, Inc. cannot correct the defect in your equipment, it will be replaced at no charge with a similar new item.
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