The SSM is ideal in theatrical or any other production where concealment in costuming is required. In spite of its tiny size, the transmitter offers an extensive set of features.
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.
The servo bias input accepts mic or line level signals with a wide range of gain adjustment in 1 dB steps. Accurate LED indications on the keypad allow precise gain adjustments to be made for the maximum signal to noise ratio and minimum distortion. The limiter in the preamp can cleanly handle signal peaks over 30 dB above full modulation, allowing the input gain to be set high enough to achieve the maximum signal to noise ratio, yet provide protection against input overload.
Compatibility with earlier analog Lectrosonics receivers, Lectrosonics IFB receivers and some receivers from other manufacturers is provided by DSP emulation modes selected in the LCD menu.
Features
Tunable across three standard frequency blocks (76.8 MHz)Digital Hybrid Wireless® audio for compandor-free digital qualitySelectable 25 or 50 mW RF powerCompatibility modes for use with analog receivers25 or 100 kHz tuning steps for up to 3072 selectable frequenciesWide range input gain control in 1 dB stepsQuick change Lithium-ion rechargeable batteryAudio coupled remote control
Specifications
Operating Frequencies: Block A1: 470.100 - 537.575
Frequency Selection Steps: Selectable; 100 kHz or 25 kHz
RF Power output: Selectable; 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 mV to 300 mV, before limiting Greater than 1V maximum, with limiting.
Input impedance:
Mic: 300 or 4.5 k ohm; selectableLine: greater than 100 k 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
Frequency Response: 70 Hz to 20 kHz (+/-1dB)
Low frequency roll-off: -12 dB/octave; 70 Hz
THD: 0.2% (typical)
Audio Input Jack: LEMO 00 Series 3-pin
Antenna: Galvanized steel, flexible wire
Battery: Lithium-ion 3.7 V 1000 mAH NP50 battery pack
Battery Life: 6 hours per charge
Weight: 2.3 ounces (65.2 grams) including lithium battery pack
Dimensions (housing): 2.3 x 1.5 x .56 in. (58.4 x 38 x 14.2 mm)
Manufacturer Part Number : SSM-A1
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