Overview
Lectrosonics DPR-A Plug-on Transmitter with Antenna, 470 to 608 MHz
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, with a selectable output power of 10, 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.
Features
- Accepts microphone or line level signals
- Selectable 5, 15, 48 volt phantom power
- Selectable 10/25/50 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 (required for operation)
- Solid machined aluminum housing
- On board recording with time code jam sync
- Encryption 256 Bit AES, CTR Mode with 4 key policies
Included:
- 1 PHTRAN3-A pouch with belt clip
- 2 AA Lithium batteries
- 1 AMM-19 antenna
- 1 AMM-22 antenna
Specifications / Documents
- Operating Frequencies: 470-608 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. and 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: AA Lithium, 48v phantom power engaged
Weight: 7.8 ozs. (221 grams)
Dimensions: 4.21" L x 1.62" W x 1.38" H [excluding antenna: DPR-A]
