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SPECIFICATIONS AND FEATURES 

Operating Frequencies (MHz): 

Block 21:  537.600  - 563.100 

Block 26:  665.600  - 691.100 

Block 22:  563.200  - 588.700 

Block 27:  691.200  - 716.700 

Block 23:  588.800  - 607.900

Block 28:  716.800  - 742.300 

        and  614.100  - 614.300 

Block 29:  742.400  - 767.900 

Block 24:  614.400  - 639.900 

Block 30:  768.000  - 793.500 

Block 25:  640.000  - 665.500 

Block 31:  793.600  - 805.600 

Frequency Adjustment Range: 

25.5 MHz in 100kHz steps 

Receiver Type: 

Triple conversion, superheterodyne, 244MHz , 10.7MHz and 300kHz 

Frequency Stability: 

±0.001 % 

Front end bandwidth: 

±5.5MHz @ -3dB 

Sensitivity 

20 dB Sinad: 

0.9 uV (-108 dBm), A weighted 

60 dB Quieting: 

1.12 uV  (-105 dBm), A weighted 

Squelch quieting: 

Greater than 100 dB 

AM rejection: 

Greater than 60 dB, 2 uV to 1 Volt (Undetectable after processing) 

Modulation acceptance: 

85 kHz 

Image and spurious rejection: 

85dB 

Third order intercept: 

+8 dBm 

Diversity method: 

Phased antenna combining - SmartDiversity

TM 

FM Detector: 

Digital Pulse Counting Detector operating at 300kHz 

Antenna inputs: 

Dual BNC female, 50 Ohm impedance 

Audio outputs 

Rear Panel XLR: 

Adjustable from -50dBu to +5dBu in 1 dB steps. Calibrated into a typical 10k Ohm balanced load. 
Can drive 600 Ohm load. 

Front Panel Controls and Indicators: 

LCD control panel - menus include: 

Main window: 

Pilot tone; antenna phase, receiver battery level; transmitter battery level; audio level, RF level 

Frequency window: 

Frequency, TV channel; Transmitter switch setting 

Audio output level adjustment: 

-50dBu to +5dBu 

Battery level tracking: 

Both transmitter and receiver in 1/10th volt steps, ac/- 0.2V. 

Scanning mode: 

Coarse and fine modes for RF spectrum site scanning 

Audio test tone: 

1kHz, -50dBu to +5dBu output, < 1% THD 

Transmitter battery type selection: 

9V alkaline, 9V lithium, AA alkaline, AA lithium 

Phase invert: 

Audio output phase normal or inverted 

SmartNR (noise reduction): 

OFF, NORMAL, FULL modes 

Audio Performance (overall system): 

Frequency Response: 

32 Hz to 20 kHz (+/- 1dB) 

THD: 

0.2% (typical) 

SNR at receiver output (dB): 

SmartNR 
OFF 
NORMAL 
FULL 

no limiting 
103.5 
107.0 
108.5 

w/ limiting 
108.0 
111.5 
113.0 

Input Dynamic Range: 

125 dB (with full Tx limiting) 

Rear Panel Controls and features: 

XLR audio output jack;  External DC input; Battery compartment access 

Power Options: 

Ext DC: 

Minimum 10 Volts to maximum 18 Volts DC;  1.6 W, 180 mA at 12VDC 

Int Batt: 

9V alkaline or lithium (165 mA @ 9V, 240mA @ 6V) 

Battery Life: 

9V alkaline 

6 to 8 hours continuous, up to 12 hours intermittent 

9V lithium 

Up to 20 hours (continuous and intermittent usage are the same) 

Weight: 

14 oz. with batteries 

Dimensions: 

3.23" wide x 1.25" high x 4.64" deep 

Specifications subject to change without notice 

14 

Summary of Contents for UCR411

Page 1: ...UCR411 UHF RECEIVER OPERATING INSTRUCTIONS and trouble shooting guide LECTROSONICS INC Rio Rancho NM www lectrosonics com...

Page 2: ...A proprietary algorithm encodes the digital audio information into an analog format which can be transmitted in a robust manner over an analog FM wireless link The receiver employs the latest filters...

Page 3: ...n order to handle stronger RF signals without output overload The first mixer is of new GaAs technology that has a very high third order intercept point This produces a robust front end that is as sel...

Page 4: ...Noise Reduction algorithm which removes hiss without sacrificing high frequency response The Smart Noise Reduction algorithm works by attenuat ing only those portions of the audio signal that fit a s...

Page 5: ...n also has protection circuits that prevent damage to the receiver if a positive ground power source is applied LCD DISPLAY The display has four main windows Pressing the MENU button rotates through e...

Page 6: ...Levels in dB are engraved into the bezel above the LCD display Battery Levels The icon above the Rx symbol indicates the receiver battery condition and will flash when approximately one hour of opera...

Page 7: ...the strip up Place the cable in the strip and secure Lift and open the bottom battery door cover with your thumb rotate the door until it is perpendicular with the case and allow the batteries to fal...

Page 8: ...UP SETUP SmtNR Press UP Press MENU SmtNR NORMAL Press UP DOWN to select Press MENU P ress UP Noise Reduction FREQUENCY WINDOW TV channel which television broad cast channel this frequency falls TV40 A...

Page 9: ...output levels only To exit the test tone screen and stop the tone press the MENU button TONE 00 dBu LVL 1K 04 dBu The TXBAT setup screen allows you to select the exact battery being used in the transm...

Page 10: ...ill show an expanded portion of the spectrum around the cursor In the FINE VIEW window each vertical band represents one frequency the UCR411 is capable of tuning The upper right corner shows the tran...

Page 11: ...al If the direct and reflected signals are out of phase with each other a cancellation may occur The result would be a dropout A dropout sounds like either audible noise hiss or in severe cases may re...

Page 12: ...e transmit ter To explain it another way it is used to match the transmitter to the type of microphone and the sound levels that will be present at that microphone We encourage users to either disconn...

Page 13: ...NNAS AND RF SIGNAL STRENGTH RF Level is weak Receiver may need to be moved or reoriented Antenna on transmitter may be defective or poorly connected double check antenna on transmitter Improper length...

Page 14: ...LCD control panel menus include Main window Pilot tone antenna phase receiver battery level transmitter battery level audio level RF level Frequency window Frequency TV channel Transmitter switch set...

Page 15: ...for an exact quotation We will be happy to quote approximate charges by phone for out of warranty repairs RETURNING UNITS FOR REPAIR You will save yourself time and trouble if you will follow the ste...

Page 16: ...c or an authorized dealer shipping costs prepaid within one year from the date of purchase This Limited Warranty is governed by the laws of the State of New Mexico It states the entire liablility of L...

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