Specifications

	SPECIFICATIONS
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

UHF-4 OVERALL SYSTEM PERFORMANCE

RECEIVER

TRANSMITTERS

UH-4: POWER/STANDBY/OFF/INPUT LEVEL