Lectrosonics SSM Digital Hybrid Wireless Miniature Transmitter (A1: 470.100 to 537.575 MHz)

Model #SSM-A1

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Packaging Info

Box Dimensions (LxWxH) 9.9 x 7.9 x 3.0"
Package Weight 1.2 lb

General Information

RF Power Output Switchable; 25 or 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 to 300 mV, before limiting Greater than 1 V maximum, with limiting
Input Impedance Mic: 300 or 4.5 kOhms; selectable Line: Greater than 100 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
Operating Frequency A1: 470.100 to 537.575 MHz
Frequency Selection Steps Selectable; 100 kHz steps or 25 kHz

Audio Performance

Total Harmonic Distortion (THD) 0.2% (typical)
Signal to Noise Ratio At Receiver Output: SmartNR Off: No limiting 103.5, w/limiting 108.0 SmartNR Normal: No limiting 107.0, w/limiting 111.5 SmartNR Full: No limiting 108.5, w/limiting 113.0 Note: The dual envelope "soft" limiter provides the 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
Controls Side-panel membrane switches with LCD interface for power on/off and all setup and configuration controls Responds to remote commands from smartphones with 3rd party app.
Audio Input Jack LEMO 00 series 3-pin
Antenna Galvanized steel, flexible wire
Batteries Lithium-ion 3.7 V 1000 mAH NP50 battery pack
Battery Life 6 hours per charge
Emission Standard 180KF3E
Dimensions (L x W x H) 2.3 x 1.5 x 0.56" (58.4 x 38 x 14.2 mm)
Weight 2.3 oz (65.2 g) including lithium battery pack
Low Frequency Roll-Off -12 dB/octave; 70 Hz
Frequency Response 35 Hz to 20 kHz (+/-1 dB)
Product Highlights
  • For Theater, Live Stage, TV, & Film
  • 24-Bit Digital Audio with Analog FM Link
  • 35 Hz to 20 kHz Frequency Response
  • 25 or 100 kHz Tuning Steps
  • Up to 3,072 Selectable Frequencies
  • Wide Range Input Gain Control
  • LED Indicators
  • Compatible with Analog Receivers
  • Runs on Rechargeable Lithium-Ion Battery
  • Includes Belt Clip and Battery Charger
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