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UHF-4 OVERALL SYSTEM PERFORMANCE
Frequency Response 30 Hz - 18 KHz, +/– 3 dB
Dynamic Range 120 dB
Total Harmonic Distortion < 0.6%
RF Carrier Frequency Range UHF, choice of single frequencies within separate bands
902-928 and 944-952 MHz
Frequency Stability +/- 0.005%, crystal controlled
Modulation FM (F3E), +/-20KHz normal
Operating Range Up to 250 ft. typical (depending on site conditions); up to
500+ feet optimum line-of-sight
RECEIVER
Reception Mode DigiTRU Diversity™ (Dual Antenna)
Squelch External Control, Tone Key (30.768 KHz)
Controls Power ON/OFF, Volume Control, Squelch (Mute) Adjust
Connectors DC in, 1/4”(6.3 mm) unbalanced phone jack (360 mV/
no load), XLR balanced output (+/-24 mV/600 Ohm load)
LED Indicators Power ON, Diversity A/B, Audio LED Bars + Peak
Unwanted Signal Rejection 60dB image and spurious
Power Requirements DC 15V @ 300 mA, AC/DC adapter included
Dimensions (Max.) 1.75" x 7.5" x 8.1" (4.5 x 19 x 20.6 cm)
Weight 0.9 lbs (0.41 kg)
Antenna 3.5" (9.0 cm), dual telescopic
TRANSMITTERS
Audio Inputs UB-4 Bodypack: 3.5mm locking mini-jack,
switchable inputs: instrument, headworn mic,
or lavalier mic
UH-4 Handheld: Integral Nady DM-10D neodymium
dynamic cartridge
Controls UB-4: POWER/STANDBY/OFF, INSTRUMENT/
HEADWORN MIC/LAV MIC, INPUT LEVEL
UH-4: POWER/STANDBY/OFF/INPUT LEVEL
LED Indicator Single color (red), Unit “ON” (single flash red), Low Battery
Alert (steady red)
RF Power Out 50mW nominal (maximum allowed by FCC)
Harmonic & Spurious Emissions < –50 dB
Battery UH-4: 9V Alkaline UB-4: 9V Alkaline
Battery Life 10 Hours
Dimensions UB-4 Bodypack: 4.25” x 2.5”x 1.0”
(10.8 cm x 6.4 cm x 2.5 cm)
UH-4 Handheld: 9.5”x 2.0”
(24 cm x 5.1 cm)
Weight UB-4 Bodypack: 3.1 oz (88 g) without battery
UH-4 Handheld: 6.6 oz (187 g) without battery
SPECIFICATIONS
UHF4_man 2/15/05, 4:10 PM11