Lectrosonics Inc SMWBC1 Manual De Usuario

25

Transmitter

Operating Frequencies: 

  Band A1: 

470.100 - 537.575 

  Band B1: 

537.600 - 614.375 

  Band C1: 

614.400 - 691.175 

   

Frequency Selection Steps: 

Selectable; 100 kHz or 25 kHz

RF Power output: 

25, 50 or 100 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 Ohm 

 

 

•  Line: 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

Controls: 

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)

Audio Performance (Digital Hybrid mode)
Frequency Response: 
 

Mic input: 

35 Hz to 20 kHz (+/-1dB); low frequency 

 

 

roll-off is selectable at 35, 50, 70, 100, 120, 180 Hz 

 

Line/Instrument: 

35 Hz to 20 kHz (+/-1dB)

THD:   

0.2% (typical)

SNR at receiver output:

Note: The dual envelope “soft” 

limiter provides exceptionally good  

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

SmartNR 

No Limiting 

w/Limiting

OFF  103.5 108.0
NORMAL 107.0 

111.5

FULL 108.5 113.0

Antenna: 

Galvanized steel, flexible  wire

Battery: 

Two AA lithium, disposable

Battery Life w/ Lithium AA: 
 

SMWB 50 mW (1 AA):

7.25 hrs

SMWB 100 mW (1 AA):

5.5 hrs

SMDWB 50 mW (2 AA):

14.5 hrs

SMDWB 100 mW (2 AA):

14 hrs

Weight: 

5.8 ounces (141 grams), including lithium AA batteries

Dimensions: 

3.2 x 2.4 x .9 in. (81 x 61 x 20 mm)

Emission Designator: 

180KF3E

Specifications subject to change without notice.

Specifications

Recorder

Recording
 

Storage media: 

microSDHC memory card*

 

File format: 

.wav files (BWF - Broadcast Wave File)

 

A/D converter: 

24-bit (with additional 8 bits for wav format  

 

 compatibility)
 

Sampling rate: 

44.1 kHz

 

Recording mode/Bit rate: 

HD mono mode;  24 bit - 132 kbytes/s 

Input
 

Type: 

Analog mic/line level compatible; 

 

 

servo bias preamp for 2V and 4V lavaliere 

  

microphones

 

Input level: 

• Dynamic mic:  0.5 mV to 50 mV 

 

 

• Electret mic:  Nominal 2 mV to 300 mV 

 

 

• Line level:  17 mV to 1.7 V

 

Input connector: 

TA5M 5-pin male

Audio Performance
 

Frequency response: 

20 Hz to 20 kHz; +0.5/-1.5 dB

 

Dynamic range: 

110 dB (A), before limiting

 

Distortion: 

< 0.035%

Operating temperature range
 

Celsius: 

-20 to 50 

 

Fahrenheit: 

-5 to 122

Specifications subject to change without notice.