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MTB40S Guide Utilisateur
2400 allocated by 40 groups of 60 channels (in specific frequency range), quickly
Switchable
selectable with dedicated buttons
channels
Switching window Up to 232 MHz, depending on band (see Variants on the next page)
Quartz PLL frequency synthesizer circuit (25 kHz step)
Frequencies
Frequency stability ▪ ± 2,5 ppm (in the rated temperature range)
-10 ÷ +55 °C
Temp. range
▪ 10 mW (ERP) (to respect some local norm)
▪ 20/50/100 mW (ERP) (note: in some countries middle power can be disabled, for local
Max RF power
norm!)
Spurious emissions < 2 nW
wideband FM, with 50 µs pre-emphasis
Modulation
Nominal deviation ±40 kHz (Peak deviation = ±56 kHz)
MTB40S transmits also a digitally modulated sub-carrier, suitable for:
Telemetry feature
▪tone-squelch operating
AF input connector XLR-3F (transformer isolated) with locking collar and 48V phantom power
100 dB adjustable range from -54 dBu (775 uV) to 46 dBu (15.5 V) at peak deviation (1
AF input level
kHz), adjustable in 1 dB steps
+46 dBu (15.5 V) at clipping, +20 dBu (7.75 V) at nominal level
Max. input level
ENR (Wisycom Extended-NR), with independent Attack- and Recovery-time, noise
optimized
Noise-Reduction
ENC (Wisycom Extended-NC), with independent Attack- and Recovery-time, voice
optimized & with reduced pre-emphasis
▪ 45 Hz ÷ 21 KHz (3dB)
AF bandwidth
▪ 55 Hz ÷ 20 KHz (1dB)
< 0.3 % (0.15 % typ.)
Distortion
▪ typ. 115 dB (A)
Signal-to-noise
▪ typ. 121 dB (A)
ratio
High contrast OLED (Organic light-emitting diode) white display (128 x 32 pixels)
8 step battery lifetime indication: 7 bars (100%-87%-75%-63-50%-38%-25%) and "empty
Display
bar" quickly blinking (12% remaining)
RGB Led indication (red, green and blue):
▪ Wireless transmission status
Led
▪ Modulation peak (if activated & limiter disabled): RED
▪ Battery lifetime status: GREEN - steady (> 25%)
2 AA size batteries (Alkaline, rechargeable NiMH or Lithium)
Power supply
- Phantom power to Shotgun Microphone (max 4mA)
123 x 39,4 x 34 mm (Height-Width-Depth)
Dimension
Approx. 210 g. without batteries (250g with batt)
Weight
16
SPECIFICATIONS TECHNIQUES
▪ remote battery monitoring
with 40 kHz deviation
rms
with 56 kHz deviation
rms
- Green when RF transmission power is on,
- Red when RF transmission power is off.
- Blue when the input signal is above the peak threshold
- slowly blinking (< 25%) - quickly blinking (<12%)
▪ optional PTT (Push to talk) operation
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