The UHF-4 is loaded with top professional operating features and is the best performance and price value available in UHF diversity wireless systems. This unit comes with the HM-1 Headset Microphone and UB-4 bodypack transmitter.

Wireless Receiver Features:

Unprecedented value in a full-featured, single-channel UHF wireless mic system
Interference-free operation in any application or locale on select UHF frequencies
Half-rack receiver design with folding front panel dual antennas
Unique snap-out panel locking tabs for optional single receiver rackmounting or dual receiver (side-by-side) rackmounting
Tone Squelch™ for locking out potential interference
Nady’s proprietary companding circuitry for an industry-best 120dB dynamic range, and the clearest, most natural sound available
UHF-4 receiver with DigiTRU Diversity™ for maximum range and dropout protection; full LED indicators; ¼" unbalanced and XLR balanced outputs; special circuitry for noiseless transmitter On/Off switching

HM-1 Microphone Features:
Uni-directional dynamic element for top audio response — perfect for even the most exacting singing/performance applications
Adjustable gooseneck which can be set at any angle required by the user.
The head worn support system is extremely light and comfortable, and is designed to be visually unobtrusive while worn
Its ear rests and temple provide maximum stability during use, even while moving, dancing, or shaking the head. The durable cable assembly and internal construction are designed to minimize handling noise from contact and movement
UB-4 Bodypack Transmitter Features:
Choice of instrument, headworn or lavalier mic operating modes in a single bodypack transmitter
Off/Standby/On switch allows convenient audio muting while transmitter on
Status LED indicator flashes once for Unit On; lights steady for low-battery alert
Locking 3.5mm mini-jack provides secure connection for removable microphone or instrument cable
Easily accessible Input Level Adjust for optimum sound (HM/LT operating modes only)
Uses a single 9V alkaline or NiMH battery

SPECIFICATIONS

UHF-4 LT/HM-1 (115) Headset Wireless System

System
Frequency response: 30Hz - 18KHz, +/- 3dB
Dynamic range: 120dB
THD: < 0.6%
RF carrier frequency range: UHF, choice of single frequencies in separate bands within 794-865MHz
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 in. unbalanced phone jack (360 mV/ no load), XLR balanced input (+/- 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, adapter included
Dimensions: 1.75"H x 7.5"W x 8.1"D (4.5 x 19 x 20.6 cm)
Weight: 0.9lb. (.41kg)
Antenna: 3.5", dual telescopic

HM-1
Element: Dynamic (UM-4)
Polar Pattern: Cardioid (Unidirectional)
Frequency response: 100Hz~15kHz
Sensitivity: -78dB ±3dB(@1kHz, 74dB SPL)
Impedance: 800 ohms ±30% @ 1kHz
Cable Length: 52" (1300 mm)
Dimensions: Headset: 5.66" (144 mm) nominal at widest point; 3.74" (95mm) flexible boom, .187" (4.4 mm) diameter
Weight: 1.65 oz. (46.2 grams) with cable

Nady Systems UHF-4 LT/HM-1 (Nady UHF-4 LT/HM-1)