MTP41S 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. MTP41S benefit also of the latest Wisycom RF technology along with an enhanced robustness against noise

Improved features:
- Integrated HW limiter

Up to 232 MHz bandwidth in 470/798 MHz range (others on request)

Miniature design with flexible pcb (no connectors) for extended reliability

Input dynamic extension with an integrated HW limiter (30 dB above peak)

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 or Lithium

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: 80dB in 1dB step

Max input level 26dBu (15.5 V clipping) to connect directly to mixers and instruments

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

Audio input LEMO or DPA
LEMO connector configurable on 'mic' display menu in 3 options:
'2 wires': gain selectable -60 ÷ +40 (-54 dBu ÷ +26 dBu peak), no bias voltage
'2 wires + bias': gain selectable -60 ÷ +40 (-54 dBu ÷ + 6 dBu peak), 5.5 V on 4k7 bias supply
'3 wires: gain selectable -60 ÷ +40 (-54 dBu ÷ +26 dBu peak)
DPA connector (2 pin microdot audio connector) configurable only
'2 wires'
'2 wires+bias'

DPA connector (2 pin microdot audio connector) configurable only

'2 wires'

'2 wires+bias'

Audio input level

100 dB adjustable range from -54 dBu (775 uV) to 46 dBu (15.5 V) at peak deviation (1 kHz), adjustable in 1 dB steps

Max input level

+46 dBu (15.5 V) at clipping, +20 dBu (7.75 V) at nominal level

Managing interface

IrDA

LED
RGB led indication with (red, green and blue) on wireless power switch:

Wireless transmission status: GREEN on/RED off

Battery lifetime status: GREEN steady (> 25%), slowly blinking (< 25%), quickly blinking (<12%)

Modulation peek (if activated & the limiter is disabled): RED

Ptt status: RED if active

Limiter into action: Blue

Battery lifetime indication

8 steps : 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

Display

High contrast OLED (Organic light-emitting diode) white display (128 x 32 pixels)

Power supply

1 AA size cell (Alkaline, rechargeable NiMH or Lithium)

Battery life
approx. 11 hours @ 50mW continuous working Lithium
approx. 8 hours @ 50mW continuous working with NiMH
approx. 4.5 hours @ 50mW continuous working with Alkaline

Temperature range

-10 ÷ +55 °C

Dimensions

58.2 x 64.5 x 21.7 mm (HxWxD) with clip

Weight

Approx. 80 g. without battery (120g with batt.)