401X Quad HM-3 Headset Wireless System

Features:

Four independent VHF receivers in one convenient, rugged, all-metal single-rack space housing
Front dual antenna jacks for either onboard or remote antennas
Front panel Power On/Off switch, plus Power On LED, TX On and AF signal level LED displays
Rear panel individual XLR output jacks; volume and RF mute controls for each of the four channels; 4-channels-mixed AF out ¼” phone jack
Noise-free transmitter On/Off operation
High performance—unmatched transparent audio with 120 dB dynamic range and up to 250+ ft. optimum line-of-sight operation

Wireless Mic System Performance
Frequency Response: 30-18KHz (-3dB)
Dynamic Range: 120dB (20-20KHz)
Total Harmonic Distortion: <0.5% (typical)
RF Carrier Frequency Range: 170-230MHz (Factory installed Channels)
Frequency Stability: +/- 0.005%, crystal controlled
Modulation: FM (F3E), +/-15KHz nor,+/-30KHz max
Operating Range: 250 feet typcial - up to 500+ feet optimum line-of-sight
Wireless Bodypack Transmitters
Audio Inputs: 3.5mm mono locking jack for connecting to omnidirectional lavalier mic with phantom power
Controls: OFF/STANDBY/ON switch, input level adjust
LED Indicator: Unit "ON" (single flash), Low Battery Alert (steady)
RF Power Out: 50mW (Max. allowed by FCC)
Harmonic & Spurious Emissions: <-40dB
Battery: 9V Alkaline
Battery Life: Up to 20 hours
Dimensions: 4.1"H X 2.4"W X 0.8"D (10.4cm X 6.1cm X 2.0cm)
Weight: 3.6oz. (101g)
Wireless Receiver
Controls Power ON/OFF, volume control, mute control
Connectors: 1 unbalanced adjustable mixed (all four channel), 1/4" T-S audio output jack. Line level, 600 ohms, 4 balanced fixed level XLR, #1=GND, #2-3=signals, Line/Mic level, 11k/600ohms
Receiver: 2.1mm barrel-type DC input jack (tip=positive)
LED Indicators: 1 Power ON LED, 4 AF LED, 4 TX ON LED
Dimensions: 1.75"H x 7.5"D x 16.5"W (4.4cm x 19cm x 42cm)
Weight: 4.5lb. (2kg)
Power Requirements: 16V @ 800mA, nominal, AC/DC adapter supplied
Antenna Connectors: Dual female BNC connectors
HM-3
Element: condenser
Polar Pattern: Cardioid (omni-directional)
Frequency response: 100Hz-13kHz
Sensitivity: -40dB ±3dB (@ 1kHz, 74dB SPL)
Impedance: 2.2KOhms, Ohms ±30% @ 1kHz
Cable length: 43" (1092mm)
Dimensions: Headset: 5.66" (144mm) nominal at widest point; 4.5" (144mm flexible boom, . 155" (3.9mm) diameter

Nady Systems 401X Quad HM-3 (Nady 401X Quad HM3)