UCR411A
Lectrosonics
UCR411A
Lectrosonics UCR 411A Receiver
This receiver provides professional performance and a versatile feature set in a compact design for field and location production. All settings are made from the front panel with a powerful LCD interface, making the unit ideal for use in Quad Paks, on sound carts, in portable bags and in rack mount multi-couplers. To alleviate interference problems in an increasingly congested RF spectrum, an RF spectrum analyzer is built into the receiver. The receiver tunes across its 25.6 MHz tuning range and records RF activity with markers on the LCD screen. Finding clear operating frequencies is a quick, simple process. The UCR411A is compatible with all 400 Series Lectrosonics wireless transmitters (and some other transmitter types) and can be powered with internal 9V batteries or external DC.
The mechanical design of the receiver combines field proven features developed over many years of experience in motion picture and television production markets. The machined aluminum housing and panels are surfaced with electrostatic powder coated and anodized finishes with laser etched markings to withstand the rigors of field production.
The mechanical design of the receiver combines field proven features developed over many years of experience in motion picture and television production markets. The machined aluminum housing and panels are surfaced with electrostatic powder coated and anodized finishes with laser etched markings to withstand the rigors of field production.
Product Weight: 15.2 oz with two alkaline 9V batteries
Dimensions: 3.23”W x 1.23”H x 4.75”D
Technical Tools
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Manufacturer Specs
Frequency Adjustment Range: 25.5 MHz in 100 kHz steps
Receiver Type: Triple conversion; superhet
IF frequencies: 244 MHz, 10.7 MHz and 300 kHz
Frequency Stability: ±0.001 %
Front end bandwidth: ±5.5 MHz, @ -3 dB
Sensitivity: 20 dB Sinad: 0.9 uV
(-108 dBm), A weighted
60 dB Quieting: 1.12 uV
(-105 dBm), A weighted
AM rejection: >60 dB, 2 uV to 1 Volt
Modulation acceptance: 85 kHz
Image and spurious rejection: 85 dB
Third order intercept: +8 dBm
Diversity method: Phased antenna SmartDiversityTM
FM Detector: Digital pulse counting detector operating at 300 kHz
Antenna inputs: Dual BNC female jacks; 50 Ohm impedance
Audio output: Rear panel XLR connector; can drive 600 Ohm,
adjustable from -50 to +5 dBu in 1 dB steps
(into nominal 10 k bal. load)
Audio Performance (overall system):
(These audio performance specs apply only to 400 Series compatibility mode.)
Frequency Response: 32 Hz to 20 kHz (+/-1 dB)
THD: 0.2% (typical)
SNR at receiver output (dB):
Note: The dual envelope “soft” limiter provides exceptionally good handling of transients using variable attack and release time constants. Once activated, the limiter compresses 30+ dB of transmitter input range into 4.5 dB of receiver output range, thus reducing the measured figure for SNR without limiting by 4.5 dB.
Input Dynamic Range: 125 dB (with full Tx limiting)
Overall Latency (time delay): 3mS
Audio Test Tone: 1 KHz, -50 to +5 dBu, <1%THD
Front Panel Controls and
Indicators:
• LCD display
• Menu - up/down buttons
• Power switch
Rear Panel Features:
• XLR audio output jack
• External DC input
• Battery compartment
External Power:
Minumum 10 Volts to maximum 18 VDC
1.6 W; 170 mA at 12 VDC
Battery Life:
6 to 8 hrs. continuous, with 2 alkaline 9 V batteries
up to 20 hrs. continuous with 2 lithium 9 V batteries
Receiver Type: Triple conversion; superhet
IF frequencies: 244 MHz, 10.7 MHz and 300 kHz
Frequency Stability: ±0.001 %
Front end bandwidth: ±5.5 MHz, @ -3 dB
Sensitivity: 20 dB Sinad: 0.9 uV
(-108 dBm), A weighted
60 dB Quieting: 1.12 uV
(-105 dBm), A weighted
AM rejection: >60 dB, 2 uV to 1 Volt
Modulation acceptance: 85 kHz
Image and spurious rejection: 85 dB
Third order intercept: +8 dBm
Diversity method: Phased antenna SmartDiversityTM
FM Detector: Digital pulse counting detector operating at 300 kHz
Antenna inputs: Dual BNC female jacks; 50 Ohm impedance
Audio output: Rear panel XLR connector; can drive 600 Ohm,
adjustable from -50 to +5 dBu in 1 dB steps
(into nominal 10 k bal. load)
Audio Performance (overall system):
(These audio performance specs apply only to 400 Series compatibility mode.)
Frequency Response: 32 Hz to 20 kHz (+/-1 dB)
THD: 0.2% (typical)
SNR at receiver output (dB):
| SMARTNR | No Limiting | w/Limiting |
| OFF | 103.5 | 108.0 |
| NORMAL | 107.0 | 111.5 |
| FULL | 108.5 | 113.0 |
Note: The dual envelope “soft” limiter provides exceptionally good handling of transients using variable attack and release time constants. Once activated, the limiter compresses 30+ dB of transmitter input range into 4.5 dB of receiver output range, thus reducing the measured figure for SNR without limiting by 4.5 dB.
Input Dynamic Range: 125 dB (with full Tx limiting)
Overall Latency (time delay): 3mS
Audio Test Tone: 1 KHz, -50 to +5 dBu, <1%THD
Front Panel Controls and
Indicators:
• LCD display
• Menu - up/down buttons
• Power switch
Rear Panel Features:
• XLR audio output jack
• External DC input
• Battery compartment
External Power:
Minumum 10 Volts to maximum 18 VDC
1.6 W; 170 mA at 12 VDC
Battery Life:
6 to 8 hrs. continuous, with 2 alkaline 9 V batteries
up to 20 hrs. continuous with 2 lithium 9 V batteries