Wisycom - MTP41 Professional Pocket UHF Transmitter

 
MTP41 is an extremely small and light pocket transmitter especially designed for professional wireless microphone applications. Very easy and quick to use thanks to OLED display, dedicated buttons and a joggle selector. MTP41 benefit also of the latest Wisycom RF technology along with an enhanced robustness against noise.
 

Product Overview:

  • Up to 232 MHz bandwidth in 470/798 MHz range (others on request)
  • Miniature design with flexible pcb (no connectors) for extended reliability
  • Ultra-light metal alloy body (60g without battery)
  • User selectable multi-companding systems:
          ENR (noise optimized)
          ENC (voice optimized)
  • Battery: 1 AA Alkaline or rechargeable NiMH
  • Autonomy:
          > 5h @ 50mW output power
          > 7h @ 10mW output power
  • Infrared interface for management and firmware update
  • Easy and quick to setup thru an Oled display gain/freq button and a joggle selector
  • Extended regulation on Mic input gain: 100dB in 1dB step
  • Max input level 26dBu (15.5 V clipping) to connect directly to mixers and instruments

 

Switchable channels :

  • 2400 allocated by 40 groups of 60 channels (in specific frequency range), quickly selectable with dedicated buttons


Switching window :


Up to 232 MHz, depending on band

  1. 470 ÷ 640 MHz
  2. 566 ÷ 798 MHz
  3. 510 ÷ 698 MHz

Frequencies :
  • Quartz PLL frequency synthesizer circuit (25 kHz step)

Frequency stability :
  • ± 2,5 ppm (in the rated temperature range)

Temperature range :
  • -10 ÷ +55 °C

Max RF power :
  • 50 mW (ERP) when high power selected
  • 10 mW (ERP) when low power selected

Spurious emissions :
  • < 2 nW

Modulation :
  • wideband FM, with 50 µs pre-emphasis


Nominal deviation :

  • ±40 kHz (Peak deviation = ±56 kHz)

Telemetry feature :


MTP40 transmits also a digitally modulated sub-carrier, suitable for:

  • tone-squelch operating
  • remote battery monitoring
  • optional PTT (push to talk) operation

AF input connector LEMO option:


Configurable on ‘mic’ display menu in 3 options:

  • ’2 wires’: gain selectable -40 ÷ +40 (-54 dBu ÷ +26 dBu peak), no bias voltage
  • ‘2 wires + bias’: gain selectable -20 ÷ +40 (-54 dBu ÷ + 6 dBu peak), 5.5 V on 4k7 bias supply
  • ‘3 wires: gain selectable -40 ÷ +40 (-54 dBu ÷ +26 dBu peak)

 

AF input level :

  • 80 dB adjustable range from -60 dBu (775 uV) to 26 dBu (15.5 V) at peak deviation (1 kHz), adjustable in 1 dB steps

Max. input level :
  • +26 dBu (15.5 V) at clipping, +20 dBu (7.75 V) at nominal level


Noise-Reduction :

  • 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.)

Signal-to-noise ratio :

  • typ. 115 dB (A)rms with 40 kHz deviation
  • typ. 121 dB (A)rms with 56 kHz deviation

Led :


Led indication with bicolor led (red & green) on wireless power switch:

  • Wireless transmission status: GREEN on/off
  • Modulation peek (if activated): RED
  • Battery lifetime status: GREEN - steady (> 25%) - slowly blinking (< 25%) - quickly blinking (<12%)
  • Ptt status: RED if active

Display :

  • High contrast OLED (Organic light-emitting diode) bicolor display (96 x 36 pixels)
    8 step battery lifetime indication: 7 bars (100%-87%-75%-63-50%-38%-25%) and “empty bar” quickly blinking (12% remaining)

PTT function :

  • Pin 3 of the AF connector can be setup to an external push button

Power supply :

  • 1 AA size batteries (Alkaline, rechargeable NiMH)

Battery life:

  • approx. 5 hours @ 50mW continuous working
  • approx. 7 hours @ 10mW continuous working

Weight :

  • Approx. 60 g. without batteries