Lectrosonics Digital Transmitter UHF 537-614 B1

Lectrosonics Digital Transmitter UHF 537-614 B1

This unique plug-on transmitter design will ideally match any microphone or line level source via a standard XLR connector. Phantom power is selectable at 5, 15, and 48 volts or can be turned off for use with dynamic microphones and line level signal sources. The design includes a wide tuning range of up to 76 MHz, with tuning steps in increments of 100 kHz or 25 kHz for up to 3072 frequencies. The tuning range covers three standard 25.6 MHz Lectrosonics frequency bands. Each of the standard bands includes 256 different pilot tone frequencies for compatibility with all Digital Hybrid Wireless receivers.

Features:

• Accepts microphone or line level signals
• Selectable 5, 15, 48 volt phantom power
• 76MHz tuning range in 100kHz or 25kHz steps for up to 3072 frequencies
• Selectable 50/100mW output power
• Adjustable low frequency roll-off
• Powered by two AA batteries
• USB port for firmware updates
• IR (infrared) port for fast setup
• Solid machined aluminum housing

Specifications:

• Operating Frequencies: Band B1: 537.600 - 614.375MHz
• Frequency Selection Steps: Selectable; 100 kHz or 25 kHz
• RF Power Output: Selectable at 50 or 100 mW
• Pilot Tone:
  • 25 to 32kHz frequency
  • 5kHz deviation (in the Digital Hybrid mode)
• Frequency Stability: +/-0.002%
• Deviation: +/-75kHz (max in Digital Hybrid mode)
• Spurious Radiation: 60dB below carrier
• 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: 300Ohms
• Input Limiter: Dual envelope "soft" limiter; greater than 30dB range
• Gain Control Range: 55dB; panel mounted membrane switches
• Modulation Indicators: Dual bicolor LEDs indicate modulation of -20, -10, 0 and +10 dB referenced to full modulation
• Frequency Response: 35Hz to 20kHz (+/-1dB)
• Low Frequency Roll-off: Adjustable for -3dB at 30, 50, 70Hz)
• THD: 0.2% (typ. 100Hz to 20kHz)
• SNR at Receiver Output: No Limiting:
  • Off: 103.5dB
  • Normal: 107.0dB
  • Full: 108.5dB
• SNR at Receiver Output: With Limiting
  • Off: 108.0dB
  • Normal: 115.0dB
  • Full: 113.0dB
• Input Dynamic Range: 125dB (with full Tx limiting)
• Controls & Indicators:
  • Power/Phantom "ON-OFF"
  • Phantom voltage selector
  • Audio input gain
  • LCD w/membrane switches
  • LED audio level indicators
• Audio Input Jack: Standard 3-pin XLR (female)
• Phantom Power: 5V at 18 mA max., 15V at 15 mA max. and 48 V at 4 mA max., plus "OFF"
• USB Port: Used for firmware updates
• IR (infrared) port: For quick setup by transferring settings from an IR enabled receiver
• Antenna: Housing and attached microphone form the antenna
• Battery: Two 1.5 Volt AA alkaline
• Battery Life:
  • AA alkaline; No Phantom Power: 5h 0m
  • AA alkaline; 48V Phantom Power: 3h 30m
• Capsule Interface:
  • 1.25" opening and 28 thread pitch
  • Power available: 5V, 25 mA max
  • Input impedance: 1000Ohms
• Emission Designator: 180KF3E
• Dimensions (L x Dia.): 4.25 x 1.62 x 1.38" / 107.95 x 41.15 x 35.05mm
• Weight: 7.5oz / 212.62g (with AA batteries)