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Nady UHF-4 LT/HM-20U (115) Headset Wireless System  

Item #: 
127474186474987476
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This Nady UHF-4/HM-20U headset wireless microphone system offers high-quality wireless performance for an amazingly affordable price. It gives you interference-free operation on select UHF frequencies... Read More

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Overview

This Nady UHF-4/HM-20U headset wireless microphone system offers high-quality wireless performance for an amazingly affordable price. It gives you interference-free operation on select UHF frequencies, companding circuitry for an exceptional 120dB dynamic range, and clear, natural sound. The DigiTRU Diversity dual-antenna system prevents dropouts and extends its range. The Tone Squelch function blocks potential interference while full LED indicators keep you on top of things. The UHF-4 also features unbalanced 1/4", unbalanced XLR outputs, and silent transmitter on/off.

The wireless mic system includes receiver, bodypack transmitter, and HM-20U mic headset. The Nady Transmitter features status and low-battery indication and an off/standby/on switch. A 9V alkaline or NiMH battery provides 4-6 hours of continuous usage.

Nady HM-20U Headset Mic
The Nady HM-20U is a miniature unidirectional condenser headset microphone. Optimally designed for singing and speaking applications, even in noisy environments. The mic's small, lightweight design makes it ideal for handsfree use with minimum visibility. It's perfect for singer-musicians (drummers, keyboardists), vocal/dance performers, DJ's, television announcers, public speakers, and aerobics instructors.

The headset's arch-shaped rests are placed over each ear and the remainder of the band extends around the back of the head just above the neck. The tip of the supporting arches rests on the temple just in front of the ear providing the necessary stability during use. The mic boom descends from the ear on the left side.

Carefully loosen the boom by unscrewing the assembly one-quarter turn. Place the microphone capsule close to the mouth to a favorable audio position. Tighten the boom assembly. Bend the boom and headset slightly for optimum fit. Connect the Mini-XLR or 3.5mm phono plug of the microphone cable to the input jack of the bodypack transmitter or XM-10 phantom power adapter. When using a phantom power adapter, connect it to the microphone input of an audio preamp that provides phantom power.

The entire Nady HM-20U microphone assembly has been moisture-proofed to guard against deterioration during use.

Consumer Alert:

Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCCs wireless microphone website at: www.fcc.gov/cgb/wirelessmicrophones.

Features
  • UHF-4 LT wireless mic system
  • Interference-free operation on select UHF frequencies within separate bands 902-928 and 944-952MHz
  • Receiver
  • Half-rack design receiver design with folding front panel dual antennas
  • Snap out panel locking tabs for sing/and dual receiver optional rackmounting
  • Tone Squelch to lock out interference
  • DIgiTRU Diversity technology
  • Full LED indicators
  • unbalanced and balanced output
  • Noisless transmitter On/Off switching
  • UB-4 bodypack transmitter
  • 3 mic operating modes: Instrument (GT), Headworn(HM), and Lavalier (LT) mic
  • Off/Standby/On switch
  • Locking 3.5mm mini-jack
  • Accessible input level adjust control
  • Easily accessible input level adjust controller
  • Runs on single 9V alkaline or NiMH battery
  • HM-20U headset mic
  • Full-frequency, uni-directional electret condenser mic
  • Warm, transparent audio and maximum feedback rejection
  • Durable, thin metal frame easily molded to any user
  • Ergonomic design and comfortable fit with or without glasses, hat, or headphones (also no hairstyle hindrance)
  • Tiny 5mm x 8mm lightweight capsule for hours of comfortable use
  • Two sizes of foam windscreen included to reduce wind/popping noise
  • Extendable, fully adjustable boom for optimum mic capsule placement
Specifications
  • 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: 60 dB 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-20U
    Element: Back electret condenser
    Polar pattern: Uni-directional cardioid
    Frequency Response: 20Hz20KHz
    Sensitivity: -46dB ±3dB
    Output impedance:1KÎ ±5%
    SPL max: 135dB
    Power supply: 1.5-12V DC
    Capsule: 5mm x 8mm
    Cable: 1.5mm diameter, 1M(40")
    Weight: 0.6oz.(18g)
    Output connector: 3.5mm mini-locking plug or 3-pin mini-XLR
    connector
    Mini-XLR Wiring: GND = Pin 1, Hot (+) = Pin 3 --> 2KÎ --
    > Pin 2
    3.5mm Plug Wiring: GND = Sleeve, Hot (+) = Tip Foam
Warranty
MANUFACTURER'S WARRANTY
Wireless Equipment (Most) *1 Year
DKW-Duo, DKW-3 *90 Day
Pro-Audio (Most *1 Year
SPC-4C, ProPerformer microphones *90 Day
RSM-1,2,3,4,& 5 *1 Year
TRM-6 *1 Year
Speakers/Powered Speakers *1 Year
Headphones *1 Year
Power Amps *1 Year
Products identified as a "Blem" or "Refurb" carry a 90-day warranty.


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Pro Coverage gives you added warranty protection for your new gear. Stepping in where the manufacturer's "normal wear and tear" coverage ends, our Pro Coverage program offers you upgraded coverage if your product ever fails Read More.

Pro Coverage includes
  • Accidental damage protection (new gear only)
  • Expedited repair
  • Free shipping (for returns or repairs)
  • 100% coverage for commercial use
  • Extended return period
  • Extended price protection
  • No lemon guarantee
  • Free transfer of coverage to a new owner
  • Repair costs covered for up to three years from date of purchase
  • Repair authorization-toll-free by phone or via the web
  • Customer Reviews
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Review Snapshot

by PowerReviews
NadyUHF-4 LT/HM-20U (115) Headset Wireless System
 
2.3

(based on 3 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (0)

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  • 1 Stars

     

    (2)

Reviewed by 3 customers

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1.0

Bad info in description

By troy

from Milwaukee WI

Site Member

Comments about Nady UHF-4 LT/HM-20U (115) Headset Wireless System:

The HM-20U headset lists as "optional equipment" the XM-10 mini XLR phantom power adapter for "wired application". So from that, I expected it to work with the XM-10 for situations where I want to plug into a board and use the headset mic phantom powered. But it turns out the unit is EITHER a mini XLR (in which case the optional XM-10 will work with it, and allow for "wired application") OR a 3.5mm phono plug (in which case the XM-10 will NOT work with the headset, and you are out of luck if you ever want to use this headset for a wired application.) So the description is wrong. This unit is not adaptable for wired, phantom powered application. Then I went looking for the Mini XLR version of this product, which we can infer must exist from the description issue above, and it doesn't appear to exist. Looks like Nady changed from mini xlr to phono, losing the capability of running these headsets wired, and forgot to update their description. Another lapse by Nady: The description claims the headset is uni-directional. The box says Omni. Fail.

Comment on this reviewHelp Icon

 
1.0

Bad info in description

By troy

from Milwaukee WI

Site Member

Comments about Nady UHF-4 LT/HM-20U (115) Headset Wireless System:

The HM-20U headset lists as &quot;&quot;optional equipment&quot;&quot; the XM-10 mini XLR phantom power adapter for &quot;&quot;wired application&quot;&quot;. So from that, I expected it to work with the XM-10 for situations where I want to plug into a board and use the headset mic phantom powered. But it turns out the unit is EITHER a mini XLR (in which case the optional XM-10 will work with it, and allow for &quot;&quot;wired application&quot;&quot;) OR a 3.5mm phono plug (in which case the XM-10 will NOT work with the headset, and you are out of luck if you ever want to use this headset for a wired application.) So the description is wrong. This unit is not adaptable for wired, phantom powered application. Then I went looking for the Mini XLR version of this product, which we can infer must exist from the description issue above, and it doesn't appear to exist. Looks like Nady changed from mini xlr to phono, losing the capability of running these headsets wired, and forgot to update their description. Another lapse by Nady: The description claims the headset is uni-directional. The box says Omni. Fail.

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(33 of 33 customers found this review helpful)

 
5.0

Great sound, no dropouts!

By Paul

from Brentwood, CA

Comments about Nady UHF-4 LT/HM-20U (115) Headset Wireless System:

I was impressed by the quality of the sound immediately. Clean & clear vocals. The receiver and transmitter are straightforward & easy to use. By freeing myself from the mic stand, I was able to perform & interact with the audience much more than I ever have before! Our last performance was a great success thanks to my wireless headset mic! If you play guitar or bass while fronting a band, ya gotta getcha one of these!

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