Lectrosonics Digital Hybrid Transmitter Frequency Block A1 (470.100 - 537.575 MHz) - Sales

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Details

Lectrosonics Digital Hybrid Transmitter, 50 mW Output power, 75 mHz tuning bandwidth, Frequency Block A1 (470.100 - 537.575 MHz).

The design of the LMb transmitter delivers the advanced technology and features of Digital Hybrid Wireless® in a Lectrosonics belt-pack transmitter at a modest cost. Digital Hybrid Wireless® combines a 24-bit digital audio chain with an analog FM radio link to eliminate a compandor and its artifacts, yet preserve the extended operating range and noise rejection of the finest analog wireless systems. Along with providing peerless audio quality with wide frequency response and dynamic range in Nu Hybrid mode, the technology used in the LMb includes compatibility modes for Lectrosonics Mode 3 and IFB receivers. The housing is a rugged, machined aluminum package with removable, stainless steel wire belt clip. The input jack is a standard Lectrosonics 5-pin type for use with electret lavaliere mics, dynamic mics, musical instrument pickups and line level signals. The LEDs on the top panel allow quick and accurate level settings without having to view the receiver. The unit is powered by two AA batteries. The antenna is a super-rugged, permanently attached 1/4 wavelength design made of flexible galvanized steel cable. The switching power supplies in the LMb provide constant voltages to the transmitter circuits from the beginning to the end of battery life, with output power remaining constant over the life of the battery. The input amplifier uses an ultra low noise op amp for quiet operation. Input gain is adjustable over a 44 dB range, with a DSP -controlled dual envelope input limiter to cleanly handle signal peaks over 30 dB above full modulation.

Included

Lectrosonics L-Series LMb Bodypack Wireless Transmitter (A1: 470 to 537 MHz)
Limited 1-Year Warranty
Note: Batteries and Power not included

Specs

Channel	A1
Frequency Range	470.100 to 537.575 MHz
Frequency Selection	Steps: Selectable 25 or 100 kHz
RF Power Output	50 mW
Pilot Tone	25 to 32 kHz, 5 kHz deviation (Digital Hybrid mode)
Frequency Stability	± 0.002%
Deviation	± 75 kHz max. (Digital Hybrid mode)
Spurious Radiation	60 dB below carrier
Equivalent Input Noise	-120 dBV (A-weighted)
Input Level	Nominal 2 mV to 300 mV, before limiting Greater than 1 V maximum, with limiting
Input Impedance	2 kOhms
Input Limiter	DSP controlled, dual envelope "soft" limiter with greater than 30 dB range
Gain Control Range	44 dB, digital control
Modulation Indicators	Dual bicolor LEDs indicate modulation of -20, -10, 0 and +10 dB referenced to full modulation LCD bar graph

Audio Performance

Frequency Response	90 Hz to 20 kHz (+/-1 dB)
Low Frequency Roll-Off	-12 dB/octave, 70 Hz
THD	0.2% (typical)
SNR at Receiver Output	SmartNR: Off 103.5 (no limiting) 108.0 (with limiting) Normal: 107.0 (no limiting) 111.5 (with limiting) Full: 108.5 (no limiting) 113.0 (with limiting) Note: The dual envelope "soft" limiter provides 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
Switch Controls	Top panel slide switch; programmable as power, mute, talkback or no (off) function Side panel membrane switches with LCD interface for power on/off and all setup and configuration controls
Audio Input Jack	1x Switchcraft 5-pin locking (TA5F)
Antenna	Galvanized steel, flexible wire
Battery	2x AA alkaline, lithium, NiMh rechargeable
Battery Life	Alkaline: 4.5 hours Duracell Quantum: 7 hours Eneloop 2400 mAH NiMH: 8 hours
Dimensions (L x W x H)	3.2 x 2.4 x .8" (81 x 61 x 20 mm)
Weight	5 oz (141 g), including lithium AA batteries and wire belt clip

Resources

Lectrosonics

Lectrosonics Digital Hybrid Transmitter Frequency Block A1 (470.100 - 537.575 MHz)

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