Lectrosonics DPR-A Digital Plug-on Transmitter

$1,669.00 USD

DPR Digital Plug-on Transmitter

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SKU: LEC DPR-A Categories: , , , Tag:

Description

This unique plug-on transmitter design will ideally match any microphone or line level source via a standard XLR connector. The DPR-A can tune in 100 kHz or 25 kHz steps across the UHF television band from 470.100 to 607.950 MHz, with a selectable output power of 25 or 50 mW. The purely digital architecture utilizes AES 256-CTR encryption for high level security applications. The external antenna provides exceptional operating range.

The transmitter is specially designed with high efficiency digital circuitry for extended operating time on two AA batteries, with status indicated by a multi-color LED. An IR (infrared) port is included to simplify setup with IR enabled receivers. Updates can be made via SD card.

The input amplifier uses an ultra low noise op-amp for quiet operation. It is gain controlled with a wide range, dual envelope limiter, providing over 30 dB of headroom above full modulation. A 24-bit A-D converter digitizes the audio, then filters out supersonic noise above 21 kHz.

Key Features:

  • Wideband UHF tuning range – 470-608 MHz
  • Accepts microphone or line level signals
  • Selectable 5, 15, 48 volt phantom power
  • Selectable 25/50 mW RF output power
  • Adjustable low frequency roll-off
  • Powered by two AA batteries
  • IR (infrared) port for fast setup
  • Remote controlled “dweedle” tones (audio tone set-up control)
  • Removeable SMA-mount antenna
  • Solid machined aluminum housing
  • On board recording with time code jam sync
  • Encryption 256 Bit AES, CTR Mode
Operating Frequencies: 470.100 - 607.950 MHz
Frequency Selection Steps: 25 kHz
RF Power output: Selectable 25/50 mW
Frequency stability: ± 0.002%
Digital modulation: 8PSK
Spurious radiation: US Compliant with ETSI EN 300 422-1 v1.4.2
Equivalent input noise: –125 dBV (A-weighted)
Input level: Nominal 2 mV to 300 mV, before limiting. Greater than 1V maximum, with limiting
Input impedance: 1K Ohm
Input limiter: Dual envelope type; 30 dB range
Gain control range: 55 dB in 1 dB steps; digital control
Modulation indicators:
  • Dual bi-color LEDs indicate modulation of -20, -10, 0, +10 dB referenced to full modulation
  • LCD bar graph
Encryption: AES 256-CTR (per FIPS 197 and FIPS 140-2)
Frequency Response: 25 Hz to 20 kHz, (+0, -3dB)
Low frequency Roll-off: Adjustable for -3dB @ 25, 35, 50, 70, 100, 120 and 150 Hz
Input Dynamic Range: 110 dB (A), before limiting 125 dB (with full Tx limiting)
Controls & Indicators:
  • LCD w/membrane switches
  • LED audio level indicators
Audio Input Jack: Standard 3-pin XLR (female)
Phantom Power: 5V @ 18 mA max., 15V @ 15 mA max. 48 V @ 4 mA max., plus “OFF”
IR (infrared) port: For quick setup by transferring settings from an IR enabled receiver
Antenna: External SMA antenna jack
Battery: Two 1.5 Volt AA (lithium recommended)
Battery Life:
  • SCHOEPS CMIT 5U: 7h 25m
  • SCHOEPS CMC6-U/MK41: 7h 20m
  • SANKEN CS-1: 8h 0m
Weight: 7.8 ozs. (221 grams)
Dimensions: 4.21” L [excluding antenna: DPR-A] x 1.62” W x 1.38” H (106.9 L x 41.1W x 35.0 H mm)
Emission Designator: 170KG1E
Recorder 
Storage media: microSDHC memory card (HC Type)
File format: .wav files (BWF)
A/D converter: 24-bit
Sampling rate: 48 kHz
Recording modes/Bit rate: HD mono: 24 bit - 144 kb/s
Input 
Type: Analog mic/line level compatible; servo bias preamp for 2V and 4V lavaliere microphones
Input level:
  • Dynamic mic: 0.5 mV to 50 mV
  • Electret mic: Nominal 2 mV to 300 mV
  • Line level: 17 mV to 1.7 V
Timecode 
Connector: 3.5 mm TRS
Signal voltage: 0.5 Vp-p to 5 Vp-p
Input impedance: 10 k Ohms
Accuracy: <1 PPM with TCXO
Format: SMPTE 12M - 1999 compliant
Audio Performance 
Frequency response: 25 Hz to 20 kHz; +0.5/-1.5 dB
Dynamic range: 110 dB (A), before limiting 125 dB (with full Tx limiting)
Distortion: < 0.035%
Operating temperature range 
Celsius: -20 to 50
Fahrenheit: -5 to 122