Lectrosonics SMa - Manual (Page 21)

Super-Minature Belt Pack Transmitters
Specifications and Features
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 (export only)
Block 28 716.800 - 742.300 (export only)
Block 29 742.400 - 767.900 (export only)
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, and 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: 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
The FCC requires that the following statements be
included in this manual for SM Series transmitters:
For body worn operation, this SMa Belt-Pack Transmitter has
been tested and meets the FCC RF exposure guidelines
when used with the Lectrosonics accessories supplied or
designated for this product. Use of other accessories may
not ensure compliance with FCC RF exposure guidelines.
Contact Lectrosonics if you have any questions or need more
information about RF exposure using this product..
This device complies with FCC radiation exposure limits as
set forth for an uncontrolled environment. This device should
be installed and operated so that its antenna(s) are not co­
located or operating in conjunction with any other antenna or
transmitter.
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.
+6
+3
0dB
-3
-6
-9
-12
Line in
Mic in 150 Hz
Roll-off
Mic in 35 Hz
Roll-off
30 100 1kHz 10k 20k
Audio Frequency Response: 35 Hz to 20 kHz, +/-1 dB (The low frequency
roll-off is adjustable - see graph above)
Signal to Noise Ratio (dB): SmartNR No Limiting w/Limiting
(overall system, 400 Series mode) OFF
103.5 108.0
(Note: the dual envelope “soft”
limiter provides exceptionally
good handling of transients
NORMAL
FULL 107.0
108.5 111.5
113.0
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:
Battery Life:
1.5 Volt AA lithium or rechargeable
NiMH recommended
SMa: 1.5 hours (alkaline); 5.5 hours (lithium),
4 hours with 2500mAh NiMH
Weight: RM: 2.3 oz.. (65.8 grams) with lithium battery
SMa: 2.7 oz.. (75.9 grams) with lithium battery
Overall Dimensions:
SMa//RM: 2.3 x 1.8 x 0.64 inches
(not including microphone/lanyard)
58 x 46 x 16 mm
(not including microphone/lanyard)
Emission Designator: 180KF3E
Specifications subject to change without notice.
The FCC requires that the following statement be in­
cluded in this manual for the RM:
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) this device
must accept any interference received, including interference
that may cause undesired operation.
Rio Rancho, NM 21