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技术规格 |
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RF Carrier Frequency Range |
470.000 to 865.000 MHz (Available frequencies depend on the applicable regulations in the country where the system is used). Refer to the frequency supplement supplied with the system. |
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Effective Range |
100 m (300 ft.) under optimal conditions |
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NOTE: Actual working range depends on RF signal absorption, reflection, and interference |
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Audio Frequency Response |
25 to 15,000 Hz, ±2 dB |
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NOTE: Overall system frequency response depends on the microphone element. |
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Transmitter 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 |
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Transmitter Gain Adjustment Range |
ULX1: 25 dB |
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ULX2: 25 dB |
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Receiver Audio Output Level (±38 kHz deviation, 1 kHz tone) |
XLR connector (into 600 ohm load): +3.9 dBV (line), –17 dBV (mic) |
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1/4 inch connector (into 3000 ohm load): –2 dBV |
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Impedance |
ULX1 (input): 1 Megohm ULXS4, ULXP4 (output): 50 ohms at line level; 2000 ohms at mic level |
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Modulation |
±38 kHz deviation compressor-expander system with pre- and de-emphasis. |
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RF Power Output |
ULX1, ULX2: 30 mW maximum |
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Dynamic Range |
>100 dB, A-weighted |
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RF Sensitivity |
1.26 μV for 12 dB SINAD (typical) |
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Image Rejection |
80 dB typical |
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Spurious Rejection |
75 dB typical |
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Ultimate Quieting (reference ±38 kHz deviation) |
>105 dB, A-weighted |
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System Distortion (reference ±38 kHz deviation,1 kHz modulation) |
0.3% total harmonic distortion, typical |
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Power Requirements |
ULX1, ULX2: 9V alkaline battery; 8.4 V Nicad optional |
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ULXS4, ULXP4: 14 - 18 Vdc (negative ground), 550 mA |
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Battery Life |
8 to 9 hours (with 9V alkaline battery) |
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Operating Temperature Range |
- 20° to 49° C (- 4° to 120° F) |
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NOTE: Battery characteristics may limit this range. |
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Overall Dimensions |
ULX1: 96.5 mm H x 67 mm W x 26.7 mm D (3.86 x 2.68 x 1.10 in.) |
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ULX2/SM58: 228.6 L x 51 mm Dia. (9 x 2 in) |
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ULX2/BETA 58: 220.9 mm L x 51 mm Dia. (8.7 x 2 in.) |
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ULX2/SM86: 213 mm L x 49 mm Dia. (8.4 in x 1.9 in) |
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ULX2/87, ULX2/BETA 87: 223.5 mm L x 51 mm Dia. (8.8 x 2 in.) |
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ULX4S: 43 mm H x 214 mm W x 163 mm D (1.72 in. x 8.56 in. x 6.52 in.) |
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ULX4P: 43 mm H x 214 mm W x 172 mm D (1.72 in. x 8.56 in. x 6.88 in.) |
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Net Weight |
ULX1: 79 g (2.8 oz.) without battery |
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ULX2/58, ULX2/BETA 58: 289 g (10.2 oz.) without battery |
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ULX2/SM86: 251 g (8.8 oz.) without battery |
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ULX2/87, ULX2/BETA 87: 258 g (9.1 oz.) without battery |
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ULXS4: 1049 g (2 lbs, 5 oz.) |
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ULXP4: 1105 g (2 lbs, 7 oz.) |