ENGLISH
ENGLISH
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SPECIFICATIONS
RF Carrier Frequency Range
169.445 to 240.000 MHz (available frequencies depend on the applicable regulations
in the country where the system is used)
Working Range
182.8 m (600 ft.) under typical conditions. NOTE: Actual working range depends on
RF signal absorption, reflection and interference.
Audio Frequency Response
50 to 15,000 Hz, ±2 dB. NOTE: Overall system frequency response depends on the
microphone element
Audio Output Level (±15 kHz deviation, 1 kHz tone)
XLR connector (into 600 Ω load): –2.4 dBV (line), –24 dBV (mic)
1
/
4
inch connector (into 1 kΩ load)
:
–7.25 dBV
Gain Adjustment Range
SC1: 40 dB
SC2: 25 dB
Impedances
SC1 (input): 1 MΩ
SC4 (output): 150 Ω (XLR); 1 kΩ (
1
/
4
-inch phone jack)
Modulation
±15 kHz deviation compressor-expander system with pre- and de-emphasis
RF Power Output
SC1, SC2: 50 mW maximum (complies with FCC and IC regulations)
Dynamic Range
>102 dB, A-weighted
RF Sensitivity
0.5 µV for 12 dB SINAD (typical)
Image Rejection
85 dB typical
Spurious Rejection
75 dB typical
Ultimate Quieting (ref. 15 kHz deviation)
>90 dB, A-weighted
Audio Polarity
Positive pressure on microphone diaphragm (or positive voltage applied to tip of
WA302 phone plug) produces positive voltage on pin 2 with respect to pin 3 of low
impedance output and the tip of the high impedance
1
/
4
-inch output.
System Distortion (ref. ±15 kHz deviation, 1 kHz modulation)
0.5% THD typical
Power Requirements
SC1, SC2: 9V alkaline battery; 8.4V Nicad optional
SC4: 12.5 - 18 Vdc (negative ground), 300 mA; supplied with Model PS40 120 Vac, 60
Hz external AC adapter, or PS40E adapter for 230 Vac, 50 Hz external AC adapter
Battery Life
8 hours typical (with 9V alkaline battery)
Operating Temperature Range
-20° to 50° C (-4° to 122° F). NOTE: Battery characteristics may limit this range.
Overall Dimensions
SC1: 90.5 mm L x 61.9 mm W x 25.4 mm H (3-9/16” L x 2-7/16” W x 1” H)
SC2: SM58 and BETA 58A
; 241.3 mm L (9-1/2” L) SM87 and Beta 87A; 215.9 mm
L ( 8-1/2” L)
SC4: 39.7 mm H x 214.3 mm W x 184.1 mm D (1-9/16” H x 8-7/16” W x 7-1/4” D)
Net Weight (without battery)
SC1: 85.1 g (3 oz)
SC2: SM58 and BETA 58A
– 311.9 g (11 oz)
SM87 and Beta 87A – 198.5 g (7 oz)
SC4: 1.2 kg (2 lb., 11 oz.)
