MTB40S

Up to 232 MHz bandwidth in 470/798 MHz range

Enhanced robustness against self-interferences and antenna performances thru a proprietary "intermodulation cancellation" circuit

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

User selectable companding systems

ENR (noise optimized)

ENC (voice optimized)

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

P48 phantom power for condenser microphones

New white OLED display (128 x 32 pixels)

New XLR-3F connector with locking collar to ensuring an extremely tight noiseless fit!

Infrared interface for management and firmware update

Audio input circuitry with high linearity audio transformer

Battery: 2 AA Alkaline or rechargeable NiMH or Lithium

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

XLR-3F (transformer isolated) with locking collar and 48V phantom power

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

LED

RGB led indication with (red, green and blue):

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

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)

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)

Temperature range

-10 ÷ +55 C

Dimensions

124 x 40 x 34 mm (HxWxD)

Weight

Approx. 210 g. without batteries (250g with batt)