U4S
Shure
U4S
Shure U4S UHF Single-Channel Wireless Reciever
This is a high performance single-channel wireless receiver featuring Shure's exclusive MARCAD® Diversity circuitry.
Product Weight: 7.27 lbs
Dimensions: 19"W x 11.63"D x 1.75"H
Technical Tools
PDF Documents
- Product Manual - Shure - U4S (585 KB)
Manufacturer Specs
RF Carrier Frequency Range: 554–862 MHz, depending on region
Audio Frequency Response: 50–15,000 Hz, +2 dB.
NOTE: Overall system frequency response depends on the microphone element
Modulation:
+10kHz to +100kHz deviation, depending on region; compressor-expander system with pre- and de-emphasis
Dynamic Range: >102 dB or >110dB, depending on region; A-weighted
Image Rejection: 90 dB typical
RF Sensitivity
Spurious Rejection: 75 dB typical
Ultimate Quieting (ref. 45 kHz deviation): >100 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. +45 kHz deviation, 1 kHz modulation): 0.3% Total Harmonic Distortion typical
Power Requirements
90 to 230 Vac, 50/60 Hz
Power Consumption
9.6 W min., 13.2 W max.
Operating Temperature Range: –4° to 122°F
NOTE: Transmitter battery characteristics may limit this range
Audio Frequency Response: 50–15,000 Hz, +2 dB.
NOTE: Overall system frequency response depends on the microphone element
Modulation:
+10kHz to +100kHz deviation, depending on region; compressor-expander system with pre- and de-emphasis
Dynamic Range: >102 dB or >110dB, depending on region; A-weighted
Image Rejection: 90 dB typical
RF Sensitivity
Spurious Rejection: 75 dB typical
Ultimate Quieting (ref. 45 kHz deviation): >100 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. +45 kHz deviation, 1 kHz modulation): 0.3% Total Harmonic Distortion typical
Power Requirements
90 to 230 Vac, 50/60 Hz
Power Consumption
9.6 W min., 13.2 W max.
Operating Temperature Range: –4° to 122°F
NOTE: Transmitter battery characteristics may limit this range