MTH400

Name: MTH400
Availability: InStock

Wideband Handheld Transmitter

MTH400 is a handheld transmitter especially designed for professional wireless microphone applications. It is very easy and quick to use thanks to OLED display and 1 joggle selector and 2 buttons for straight setup of gain and channel. MTH400 benefits also of the latest Wisycom RF technology, it has been especially designed for robustness against noise and self-interference thanks to a special intermodulation cancellation circuit.

FEATURES

Up to 232 MHz bandwidth in 470/798 MHz range (others on request)
Enhanced robustness against intermodulation and antenna performances thanks to special “intermodulation cancellation” circuit
Thin and ergonomics body design
Ultra-light and tough aluminum alloy body
Software switchable companding systems
ENR (noise optimized)
ENC (voice optimized)
Battery: 2 AA Alkaline or NiMH or Lithium batteries with quick release system
Autonomy
about 11h (50mW with Alk. batteries)
more 14h (10mW with Alk. batteries)
Infrared interface
Easy and quick to setup thru an OLED display
1 joggle selectors and 2 quick setup buttons (level/channel adjustment)
Available also with MCM type premium head (DPA/Schoeps/Milab/Audio-technica)

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Frequency ranges	B5 option: 470 ÷ 654 MHz B3 option: 510 ÷ 698 MHz B2 option: 566 ÷ 798 MHz
Switchable channels	2400 managed in 40 groups ofr 60 frequencies completely user customizable
Switching-window	Up to 232 MHz, depending on band (see Variants below)
Frequencies	Quartz PLL frequency synthesizer circuit (25 kHz step)
Frequency error	± 2.5 ppm, in the rated temperature range
RF Power	switchable typ. 10 mW / 50 mW /100 mW note: in some countries high power can be disabled, for local norm!
Modulation	wideband FM, with pre-emphasis
Nominal deviation	±40 kHz
Peak deviation	±56 kHz
Spurious emissions	< 2 nW
Telemetry feature	TX transmits also a digitally modulated sub-carrier, suitable for: ▪ tone-squelch operating ▪ remote battery monitoring ▪ optional PTT (push to talk) operation
Noise Reduction system	ENR (Wisycom Extended-NR), with independent Attack- and Recovery-time, noise optimized ENC (Wisycom Extended-NC), with independent Attack- and Recovery-time, voice optimized & with reduced pre-emphasys
AF bandwidth	45 Hz ÷ 21 KHz (3dB) 55 Hz ÷ 20 KHz (1dB)
Distortion	< 0.3 % (0.15 % typ.)
SND/D ratio (Analogue)	typ. 115 dB (A)rms with 40kHz deviation typ. 121 dB (A)rms with 56kHz deviation
Audio input connector	directly interchangeable microphone-heads
Audio input level	60 dBu adjustable range from -54 to +6 dBu at peak deviation (1 kHz), adjustable in 1 dB steps
Max input level	+6 dBu
Max sound pressure	150 dB SPL (0,5% THD), with MCM301/MCM302/MCM303/MCM304/MCM305 condenser-heads
Managing interface	IrDA
LED	bicolor led (red & green) on wireless power switch: ▪ Wireless transmission status: GREEN on/off ▪ Battery lifetime status: GREEN steady (> 25%), slowly blinking (< 25%), quickly blinking (<12%) ▪ Modulation peek (if activated): RED ▪ Ptt status: RED if active
Battery lifetime indication	8 steps : 7 bars (100%-87%-75%-63-50%-38%-25%) and “empty bar” quickly blinking (12% remaining)
PTT function	with optional PTT accessory
Display	High contrast OLED (Organic light-emitting diode) white display (128 x 32 pixels)
Power supply	2 AA size cell (Alkaline, rechargeable NiMH or Lithium)
Power consumption	230mA@ 2.6V average (display off, 100mW power)
Battery life	approx. 10 hours @ 50mW continuous working; up to 14 hours @ 10mW with Alkaline
Temperature range	-10 ÷ +55 °C
Dimensions	183 x 33 mm (length x diameter) without microphone-head
Weight	Approx. 300g, including battery and MCM3xx (condenser) mic-head Approx. 260g batteries excluded

Documents
- Brochure
  
  MTH400-en-b08
- User Manual
  
  MTH400-en-u07_A5
- Certificate & Declaration
  
  MTH400_JP_Certificate
  
  MTH400_CN_Certificate
  
  MTH400USX_FCC_Certificate
  
  MTH400_IC_Certificate
  
  MTH400USX_IC_Certificate
  
  MTH400_FCC_Certificate
  
  MTH400-EC DECLARATION
  
  MTH400-EC DECLARATION
- Drawing
  
  MTH400_Drawing
Applications
- Firmware
  
  MTH400_1.31_0P
- Menu Tree
  
  MTH400_TreeMenu-v1.31.0P
  
  MTH400_TreeMenu-v1.10.0L
Images
- MTH400_Hi-Res_TitaniumGrey-Display
  
  MTH400_Hi-Res_TitaniumGrey
  
  MTH400 _Hi-Res_Black

Version: v1.31.0P

Date: 2017-11-24

MTH400

changed – disabled the editing by menu of audio AF input between dB (AF Gain) and dBu (AF Max Level). It is not possible anymore change the AF input between dB and dBu using the menu of the display. It is possible to change it only using the manager.

Firmware