Lectrosonics UCR401 Instruction Manual
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Lectrosonics UCR401 Instruction Manual

Compact wireless receiver
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UCR401
Compact Wireless Receiver
Featuring
Digital Hybrid Wireless
U.S. Patent 7,225,135
Fill in for your records:
Serial Number:
Purchase Date:
Technology
®
INSTRUCTION MANUAL
Rio Rancho, NM, USA
www.lectrosonics.com

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  • Page 1 INSTRUCTION MANUAL UCR401 Compact Wireless Receiver Featuring Digital Hybrid Wireless Technology ® U.S. Patent 7,225,135 Fill in for your records: Serial Number: Purchase Date: Rio Rancho, NM, USA www.lectrosonics.com...
  • Page 2 UCR401 LECTROSONICS, INC.
  • Page 3 UHF Digital Hybrid Wireless Receiver ® Digital Hybrid Wireless The Lectrosonics Digital Hybrid Wireless uses in- novative technology to combine the new advantages of digital audio with the advantages of analog RF trans- mission, thus delivering the superior sound quality of a digital system and the excellent range of an analog sys- tem.
  • Page 4 UCR401 LECTROSONICS, INC.

  • Page 5: Table Of Contents

    Antenna Use and Placement ................................16 Setup and Operating Instructions ...............................17 Installing/Replacing Batteries................................17 Adjusting Audio Output ..................................17 Finding Clear Frequencies ..................................18 Locking and Unlocking the UCR401 ..............................19 Pre-coordinated Frequencies ................................20 Compatible Frequency Table ................................20 Compatibility Diagram ..................................21 Diagnostics ......................................22 Multi-channel System Checkout................................22 Pilot Tone Bypass ....................................22...
  • Page 6 UCR401 LECTROSONICS, INC.

  • Page 7: General Technical Description

    The UCR401 is a portable, high performance, triple- conversion, frequency synthesized, UHF receiver fully The UCR401 is frequency agile and can be set to compatible with all Lectrosonics 400 Series transmit- operate on any one of 256 frequencies within its tuning ters, Lectrosonics wideband UHF analog systems.

  • Page 8: If Amplifiers And Saw Filters

    In the FM signal, rather than a conventional quadrature order to reduce this noise the UCR401 is equipped with detector. This unusual design eliminates thermal drift, a Smart Noise Reduction algorithm, which removes improves AM rejection, and provides very low audio hiss without sacrificing high frequency response.

  • Page 9: Supersonic Noise-Based Dynamic Filter And Squelch

    To assist in matching the audio levels of equipment con- NORMAL - tune in single channel increments nected to the UCR401, a 1 kHz audio test tone, adjust- GRP x - tune in precoordinated intermod-free able from -50 to +5 dBu in 1 dB increments, is available frequencies (x is A, B, C, D, U or V)) at the XLR connector.

  • Page 10: Front Panel Controls And Functions

    The SELECT Up/Down buttons are used to select vari- Display that is used to monitor system operation and ous options within each display selection and for setting configure the UCR401. the operating frequency of the receiver. MENU Button Power ON/OFF Switch...

  • Page 11: Main Window (Lcd)

    UHF Digital Hybrid Wireless Receiver ® Main Window (LCD) Audio Levels - reference levels SEL Up Button - control up for audio signal modulation from one step transmitter MENU Button - changes windows SEL Down Button - control down one step Power ON/OFF switch RF levels - reference for RF level screen icon The Main Window displays information concerning the...

  • Page 12: Menu Selections From Main Window

    UCR401 Menu Selections from Main Window Main Window Frequency Press All Buttons Scan Mode Pilot Off/On Hold MENU & press UP SELECT Press & Hold MENU Lock/Unlock Setup Window Press UP Frequency Level Press Window MENU Press MENU Press (Press UP / DOWN to adjust)

  • Page 13: Setup Window

    (factory default setting), a moder- monitoring. Four different types of ate amount of noise reduction is batteries are commonly used in Lectrosonics transmit- applied, dramatically reducing ters: 9 Volt alkaline, 9 Volt lithium, AA alkaline, and AA hiss with virtually no discernible lithium.

  • Page 14: Tuning

    User Programmable Frequency Group Behavior 100 - Lectrosonics 100 Series compatibility mode. The user programmable frequency groups “U” or “V” 200 - Lectrosonics 200 Series compatibility mode. work very similarly to the factory groups with a few exceptions.

  • Page 15: Frequency Scan Mode

    In the FINE VIEW window, each vertical band repre- Once you leave the scan mode, the Frequency Window sents one frequency the UCR401 is capable of tuning. will be displayed. Set your transmitter switches to the The upper right corner shows the transmitter switch same settings as shown on the display and your system settings for the frequency indicated by the cursor.

  • Page 16: Antenna Use And Placement

    Long cable runs can cause location. If dropouts are still a problem, try moving the substantial signal loss. Lectrosonics has in-line RF antennas to an entirely different location in the room or amplifiers suitable for compensating for long cable moving them closer to the transmitter location.

  • Page 17: Setup And Operating Instructions

    Normal levels should cause the UCR401’s audio level icon to fluctuate fully. This will result in the best possible signal to noise ratio for the system.

  • Page 18: Finding Clear Frequencies

    If the output is too low, you may hear steady noise (hiss) along with the audio. The UCR401 6. If necessary, press the MENU button to zoom in for audio output is designed to drive any audio input greater detail.

  • Page 19: Locking And Unlocking The Ucr401

    LOCKED, all settings can be altered. Frequency Select Screen The UCR401 can only be LOCKED or UNLOCKED from any of the main windows. (There are four of them.) Also, it cannot be switched between LOCKED and UN- LOCKED modes when it is in a scanning mode or from other subordinate screens.

  • Page 20: Pre-Coordinated Frequencies

    The frequencies can be used Grp a, the eight just FREQ SW SET US TV CH with Digital Hybrid and analog Lectrosonics wireless 570.100 tv30 below them comprise equipment. Compatibility with other brands is likely, but 570.700 tv30 Grp b, and so on.

  • Page 21: Compatibility Diagram

    UHF Digital Hybrid Wireless Receiver ® Compatibility Diagram BLOCK 24 BLOCK 25 Compatibility follows the pattern illustrated in the dia- FREQ SW SET US TV CH FREQ SW SET US TV CH 621.300 tv39 646.900 tv43 gram at right. 621.900 tv39 647.500 tv43...

  • Page 22: Diagnostics

    UCR401 Diagnostics Multi-channel System Checkout 4. Turn each transmitter off one at a time. Interference can result from a wide variety of sources including TV station signals, other wireless equipment With all transmitters and receivers turned on, turn each transmitter off one at a time, in turn, and look in use nearby, or from intermodulation within a multi- channel wireless system itself.

  • Page 23: Replacement Parts And Accessories

    UHF Digital Hybrid Wireless Receiver ® Replacement Parts and Accessories CCMINI CCMINI Zippered, padded vinyl system pouch DCR12/A4U Power Supply; 90-240 VAC, 50/60 Hz input; 12 VDC (regulated), 400 mA max. output. VSR1 Thin velcro loop for power cable strain relief. PS70 A/C power supply with 3-pin NEMA socket on hous- ing, 100-240 VAC input;...

  • Page 24: Troubleshooting

    UCR401 Troubleshooting Symptom Possible Cause INITIAL POWER ON LCD display not active or lit External power supply disconnected or inadequate. Wrong polarity power source. The external power input jack requires POSITIVE (+) to be on the center pin. Battery gets warm and doesn’t work.
  • Page 25 If the noise is still present, then the problem is not in the transmitter. If noise is still present when the transmitter is turned off, try lowering the audio output level on the UCR401 and see if the noise lowers correspondingly. If the noise remains, the problem is not in the receiver.

  • Page 26: Specifications And Features

    UCR401 Specifications and Features Signal to Noise Ratio (dB): Operating Frequencies (MHz): SmartNR No Limiting w/Limiting (overall system, 400 Series mode) 103.5 108.0 Block 21: 537.600 - 563.100 Block 22: 563.200 - 588.700 NORMAL 107.0 111.5 Note: The dual envelope “soft”...

  • Page 27: Service And Repair

    There are no adjustments inside that will make a malfunctioning unit start working. LECTROSONICS’ Service Department is equipped and staffed to quickly repair your equipment. In warranty repairs are made at no charge in accordance with the terms of the warranty. Out-of-warranty repairs are charged at a modest flat rate plus parts and shipping.

  • Page 28: 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.
  • Page 29 INSTRUCTION MANUAL UM400a Frequency Synthesized 100 mW UHF Belt-Pack Transmitter Featuring Digital Hybrid Wireless Technology ™ U.S. Patent 7,225,235 Fill in for your records: Serial Number: Purchase Date: Rio Rancho, NM, USA www.lectrosonics.com...
  • Page 30 UM400a LECTROSONICS, INC.
  • Page 31 Microphone RF Bypassing ..................................12 Line Level Signals ....................................12 Wiring Hookups for Different Sources ...............................13 Works with Servo Inputs Only: ................................13 Compatible with Servo Inputs and other Lectrosonics Transmitters: ....................13 Replacement Parts and Accessories ..............................14 UHF Transmitter Antenna Specifications ............................14 Troubleshooting ....................................15 Specifications and Features ................................17...

  • Page 32: General Technical Description

    Digital Hybrid Wireless audio chain ® and packaged in the widely recognized Lectrosonics Channel noise still impacts received signal quality and standard transmitter housing. will eventually overwhelm a receiver. Digital Hybrid Wireless™ simply encodes the signal to use a noisy...

  • Page 33: Control Panel

    Compatibility Modes Digital Hybrid transmitters were designed to operate with Lectrosonics Digital Hybrid receivers and will yield the best performance when doing so. However, due to the flexibility of digital signal processing, the transmit- ters can also operate in various compatibility modes for use with Lectrosonics 200 Series, Lectrosonics 100 Series, IFB and certain non-Lectrosonics receivers.

  • Page 34: Controls And Functions

    (when using the recommended battery). The LED Two 16-position rotary switches adjust the center blinks red when there are only a few minutes of life left. frequency of the carrier. The left-hand switch 1.6 MHz steps and the right-hand switch makes 100K steps. LECTROSONICS, INC.

  • Page 35: Audio Level Control

    Frequency Synthesized UHF Belt-Pack Transmitter Audio Level Control Adjustable Low Frequency Roll-Off The front panel AUDIO LEVEL Control is used to adjust The low frequency roll-off control is used to remove the input level (gain) for optimal modulation. The con- subsonic (or very low frequency) audio, often produced trols provides continuously variable gain over a 43 dB by air conditioning systems, automobile traffic and other...

  • Page 36: Battery Installation

    Selecting the Compatibility Mode cover door in the direction of the arrow as shown in the The UM400a can be used with Lectrosonics 400 Series illustration. Only firm, sliding pressure is needed to open Digital Hybrid, 200 Series analog, 100 Series analog, and close the battery door.

  • Page 37: Attaching A Microphone And Adjusting Gain

    To gain access to these switches, slide the access door sideways with a fingernail. Signal Level -20 LED -10 LED With Lectrosonics Digital Hybrid receivers, a front panel Less than -20 dB LCD character display will indicate the correct transmit- -20 dB to -10 dB Green ter switch settings.

  • Page 38: 5-Pin Input Jack Wiring

    PIN 3 Low impedance microphone level input for number listed under Service and Repair in this manual or dynamic microphones. Also accepts hand-held visit our web site at: www.lectrosonics.com electret microphones provided the microphone has its own built-in battery. PIN 4 Bias voltage selector for Pin 3.

  • Page 39: Microphone Cable Terminationfor Non-Lectrosonics Microphones

    VHF transmitters with 5-pin shield jacks require a different termination. Lectrosonics lavaliere microphones are terminated for compatibility with VHF and UHF transmitters, which is different than what is shown here. Rio Rancho, NM...

  • Page 40: Microphone Rf Bypassing

    TA5F Alternate locations for bypass capacitors CONNECTOR Install the capacitors as follows. Use 330 pF capaci- tors. Capacitors are available from Lectrosonics. Please specify the part number for the desired lead style. Leaded capacitors: P/N 15117 Leadless capacitors: P/N SCC330P...

  • Page 41: Wiring Hookups For Different Sources

    SOURCE (AUDIO) Sanken COS-11. This wiring is fully compatible with 5-pin inputs on Lectrosonics transmitters such as the LM and UM Series. This is the wiring for the Lectrosonics M152 lavaliere microphone. XLR JACK For low impedance dynamic mics or electret mics with internal battery or power supply.

  • Page 42: Replacement Parts And Accessories

    Note: Check the scale of your printout. This line should be 6.00 inches long (152.4 mm). Lectrosonics AMM Series UHF transmitter antennas follow the color code specifications in the chart below to identify operating frequency block range. (The frequency block range is engraved on the outside housing for each individual transmitter.) If a situation exists whereby the antenna is defective and the antenna cap is missing, refer to the following...

  • Page 43: Troubleshooting

    Frequency Synthesized UHF Belt-Pack Transmitter Troubleshooting Before going through the following chart, be sure that you have a good battery in the transmitter. It is important that you follow these steps in the sequence listed. Symptom Possible Cause TRANSMITTER BATTERY LED OFF 1) Battery is inserted backwards.
  • Page 44 UM400a LECTROSONICS, INC.

  • Page 45: Specifications And Features

    Frequency Synthesized UHF Belt-Pack Transmitter Specifications and Features Operating frequencies: Block 470: 470.100 - 495.600 Block 19: 486.400 - 511.900 Block 20: 512.000 - 537.500 Block 21. 537.600 - 563.100 Block 22. 563.200 - 588.700 Block 23. 588.800 - 607.90. an. 614.100 - 614.300 Block 24.

  • Page 46: Service And Repair

    Lectrosonics’ Service Department is equipped and staffed to quickly repair your equipment. In warranty repairs are made at no charge in accordance with the terms of the warranty. Out-of-warranty repairs are charged at a modest flat rate plus parts and shipping.
  • Page 47 Frequency Synthesized UHF Belt-Pack Transmitter Rio Rancho, NM...
  • Page 48 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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