SMa
Lectrosonics
SMa
Lectrosonics SMa Transmitter
This transmitter's Digital Hybrid Wireless™ design combines 24-bit digital audio with analog FM, resulting in a system that has the same operating range, spectral efficiency, and long battery life as analog systems, plus the excellent audio fidelity typical of pure digital systems.
It uses a standard Lectrosonics 5-pin type input jack for use with electret lavaliere mics, dynamic mics, or line level signals. A water-resistant control panel with LCD, membrane switches and multi-color LEDs make input gain adjustments and frequency and compatibility mode selection quick and accurate, without having to view the receiver.
The SMa is machined from a solid aluminum block to provide an extremely lightweight and rugged package. A special non-corrosive finish resists salt water exposure and perspiration in extreme environments.
The DSP-based design works with all Digital Hybrid receivers, and is backward compatible for use with Lectrosonics 200 and 100 Series and IFB receivers and some other brands of analog wireless receivers.
It uses a standard Lectrosonics 5-pin type input jack for use with electret lavaliere mics, dynamic mics, or line level signals. A water-resistant control panel with LCD, membrane switches and multi-color LEDs make input gain adjustments and frequency and compatibility mode selection quick and accurate, without having to view the receiver.
The SMa is machined from a solid aluminum block to provide an extremely lightweight and rugged package. A special non-corrosive finish resists salt water exposure and perspiration in extreme environments.
The DSP-based design works with all Digital Hybrid receivers, and is backward compatible for use with Lectrosonics 200 and 100 Series and IFB receivers and some other brands of analog wireless receivers.
Product Weight: .38 lb with lithium battery
Dimensions: 2.3"H x 1.8"W x 0.64"D excluding microphone/lanyard
Technical Tools
PDF Documents
Manufacturer Specs
Operating frequencies:
Block 470 470.100 - 495.600
Block 19 486.400 - 511.900
Block 20 512.000 - 537.500
Block 21 537.600 - 563.100
Block 22 563.200 - 588.700
Block 23 588.800 - 607.900 and 614.100 - 614.300
Block 24 614.400 - 639.900
Block 25 640.000 - 665.500
Block 26 665.600 - 691.100
Block 27 691.200 - 716.700
Block 28 716.800 - 742.300
Block 29 742.400 - 767.900
Block 944 944.100 - 951.900
(Frequency usage varies by country)
Frequency range: 256 frequencies in 100 kHz steps for one 25.5 MHz wide block
Channel Spacing: 100 kHz
Frequency selection: Control panel mounted membrane switches
RF Power output: SMa: 100 mW (nominal)
Compatibility Modes (6)
Digital Hybrid Wireless™ (400 Series)
200 Series
100 Series
Mode 3 (other analog)
Mode 6
IFB
Pilot tone: 25 to 32 kHz; 5 kHz deviation (in 400 Series Mode)
Frequency stability: ± 0.002%
Deviation: ± 75 kHz max. (in 400 Series Mode)
Spurious radiation: 60 dB below carrier
Equivalent input noise: –125 dBV, A-weighted
Input level:
If set for dynamic mic:
0.5 mV to 50 mV before limiting.
Greater than 1 V with limiting.
If set for electret lavaliere mic:
1.7 uA to 170 uA before limiting.
Greater than 5000 uA (5 mA) with limiting.
Line level input:
5.0 mV to 6 V before limiting.
Greater than 15 V with limiting.
Input impedance:
Dynamic mic: 300 Ohms
Electret lavaliere: Input is virtual ground with servo adjusted constant current bias
Line level: 2.7 kΩ
Input limiter: Soft limiter, 30 dB range
Bias voltages: Fixed 5 V at up to 5 mA
Selectable 2 V or 4 V servo bias for any electret lavaliere.
Gain control range: 40 dB; panel mounted membrane switches
Modulation indicators: Dual bicolor LEDs indicate modulation of –20, -10, 0, +10 dB referenced to full modulation.
Controls: Control panel with LCD and four membrane switches.
Low frequency roll-off: Adjustable from 35 to 150 Hz.
Audio Frequency Response: 35 Hz to 20 kHz, +/-1 dB
Signal to Noise Ratio (dB), overall system, 400 Series mode
(Note: the dual envelope “soft” limiter provides exceptionally good handling of transients using variable attack and release time constants. The gradual onset of limiting in the design begins below full modulation, which reduces the measured figure for SNR without limiting by 4.5 dB).
Total Harmonic Distortion: 0.2% typical (400 Series mode)
Audio Input Jack: Switchcraft 5-pin locking (TA5F)
Antenna: Flexible, unbreakable steel cable.
Batteries: 1.5 Volt AA lithium or rechargeable NiMH recommended
Battery Life: SM: 1.5 hours (alkaline); 5.5 hours (lithium), 4 hours with 2500mAh NiMH
Emission Designator: 180KF3E
Block 470 470.100 - 495.600
Block 19 486.400 - 511.900
Block 20 512.000 - 537.500
Block 21 537.600 - 563.100
Block 22 563.200 - 588.700
Block 23 588.800 - 607.900 and 614.100 - 614.300
Block 24 614.400 - 639.900
Block 25 640.000 - 665.500
Block 26 665.600 - 691.100
Block 27 691.200 - 716.700
Block 28 716.800 - 742.300
Block 29 742.400 - 767.900
Block 944 944.100 - 951.900
(Frequency usage varies by country)
Frequency range: 256 frequencies in 100 kHz steps for one 25.5 MHz wide block
Channel Spacing: 100 kHz
Frequency selection: Control panel mounted membrane switches
RF Power output: SMa: 100 mW (nominal)
Compatibility Modes (6)
Digital Hybrid Wireless™ (400 Series)
200 Series
100 Series
Mode 3 (other analog)
Mode 6
IFB
Pilot tone: 25 to 32 kHz; 5 kHz deviation (in 400 Series Mode)
Frequency stability: ± 0.002%
Deviation: ± 75 kHz max. (in 400 Series Mode)
Spurious radiation: 60 dB below carrier
Equivalent input noise: –125 dBV, A-weighted
Input level:
If set for dynamic mic:
0.5 mV to 50 mV before limiting.
Greater than 1 V with limiting.
If set for electret lavaliere mic:
1.7 uA to 170 uA before limiting.
Greater than 5000 uA (5 mA) with limiting.
Line level input:
5.0 mV to 6 V before limiting.
Greater than 15 V with limiting.
Input impedance:
Dynamic mic: 300 Ohms
Electret lavaliere: Input is virtual ground with servo adjusted constant current bias
Line level: 2.7 kΩ
Input limiter: Soft limiter, 30 dB range
Bias voltages: Fixed 5 V at up to 5 mA
Selectable 2 V or 4 V servo bias for any electret lavaliere.
Gain control range: 40 dB; panel mounted membrane switches
Modulation indicators: Dual bicolor LEDs indicate modulation of –20, -10, 0, +10 dB referenced to full modulation.
Controls: Control panel with LCD and four membrane switches.
Low frequency roll-off: Adjustable from 35 to 150 Hz.
Audio Frequency Response: 35 Hz to 20 kHz, +/-1 dB
Signal to Noise Ratio (dB), overall system, 400 Series mode
| SmartNR | No Limiting | W/ Limiting |
| OFF | 103.5 | 108.5 |
| NORMAL | 107 | 111.5 |
| FULL | 108.5 | 113 |
(Note: the dual envelope “soft” limiter provides exceptionally good handling of transients using variable attack and release time constants. The gradual onset of limiting in the design begins below full modulation, which reduces the measured figure for SNR without limiting by 4.5 dB).
Total Harmonic Distortion: 0.2% typical (400 Series mode)
Audio Input Jack: Switchcraft 5-pin locking (TA5F)
Antenna: Flexible, unbreakable steel cable.
Batteries: 1.5 Volt AA lithium or rechargeable NiMH recommended
Battery Life: SM: 1.5 hours (alkaline); 5.5 hours (lithium), 4 hours with 2500mAh NiMH
Emission Designator: 180KF3E