Lectrosonics LMB Digital Hybrid Wireless UHF Beltpack Transmitter, A1 470.100 - 537.575 MHz
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Lectrosonics LMB Digital Hybrid Wireless UHF Beltpack Transmitter, A1 470.100 - 537.575 MHz
The LMb transmitter can be configured to operate as a "one touch" device with a single power on/off switch on the top panel, or with full access to all operational parameters using the side panel membrane switches and LCD interface. The top panel switch can also be configured to provide a mute or talkback function.
This versatility makes the transmitter at home in a wide variety of applications from video production to theater, stage and house of worship.
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.
Frequencies are selectable in 100 kHz or 25 kHz steps across a maximum tuning range of 76.7 MHz. This yields a total of 3072 available frequencies across three standard frequency blocks. The tuning range varies in other blocks to meet applicable frequency allocations.
Key Features
- Covers four standard frequency blocks (depending on area of operation)
- Digital Hybrid Wireless for compandor-free audio
- 50 mW RF
- Compatibility modes for use with analog receivers
- 25 or 100 kHz tuning steps
- Integrated multi-function switch for mute or talkback modes
- Wide range input gain control in 1 dB steps
Technical Specifications
Operating Frequencies
Band A1 470.100 - 537.575
Band B1 537.600 - 607.950
Frequency Selection Steps
Selectable; 100 kHz or 25 kHz
RF Power output
US 50 mW
Compatibility Modes
Nu Hybrid, Mode 3, IFB
Pilot tone
25 to 32 kHz; 5 kHz deviation (Digital Hybrid mode)
3.5 kHz deviation (Nu Hybrid)
Frequency Stability
± 0.002%
Spurious radiation
Compliant with ETSI EN 300 422-1 v1.4.2
Equivalent input noise
-120 dBV (A-weighted)
Input level
Nominal 2 mV to 300 mV, before limiting;
Greater than 1V maximum, with limiting
Input impedance
2k Ohm
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
Frequency Response
90 Hz to 20 kHz (+/-1dB) - NuHybrid
70 Hz to 20 kHz (+/-1dB) - Digital Hybrid
Low frequency roll-off
-12 dB/octave; 70 Hz
THD
0.2% (typical)
Operating temp. range:
Celsius -20° - 40°
Farenheit -5° - 104°
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
Switchcraft 5-pin locking (TA5F)
Antenna
Galvanized steel, flexible wire
Battery
Two AA lithium
Battery Life
Duracell Ultra 7 hours
Weight
5 ounces (141 grams), including lithium
AA batteries and wire belt clip
Dimensions
3.2 x 2.4 x .8 in. (81 x 61 x 20 mm)
Emission Designator
110KF3E (US)
Included Accessories
2 - AA Batteries
1 - 26526 Wire Belt Clip (Installed on Transmitter)
