To meet the demand for both extended operating range and extended battery life, the "V" series SM transmitters offer selectable output power of 100 or 250 mW.
A third selection at 50 mW is provided for some theatrical applications where the system design specifies lower transmitter power.
The input section features the unique servo bias input circuitry with a standard TA5M type jack for use with electret lavaliere mics, dynamic mics, or line level signals. A DSP-controlled analog audio limiter is employed before the A-D converter. The limiter has a range of more than 30 dB for excellent overload protection and a dual release envelope that makes the limiter acoustically transparent while maintaining low distortion. The limiter recovers quickly from brief transients, with no audible side effects, and also recovers slowly from sustained high levels to keep audio distortion low while preserving short term dynamics.
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, 614.100 - 614.300
Block 24: 614.400 - 639.900
Block 25: 640.000 - 665.500
Block 26: 665.600 - 691.100
Digital Hybrid Wireless Technology*
Variable, selectable power output: SMQV: 50mW, 100mW, 250mW
Membrane switch control panel with LCD display
256 synthesized UHF frequencies
Wide input dynamic range
DSP based pilot-tone signal
Circulator/Isolator output stage
Splash-proof, machined aluminum housing
Non-corrosive, super-hard finish
Channel Spacing: Selectable; 25 or 100 kHz
Frequency selection: Control panel mounted membrane switches
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: 17 mV to 1.7 V before limiting. Greater than 50 V with limiting. Line level input: 17 mV to 1.7 V before limiting. Greater than 50 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 k Ohms
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: 44 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.
Total Harmonic Distortion: 0.2% typical (400 Series mode)