WisyCom MTH410 - Technical Specifications

MTH410 User Manual
17
TECHNICAL SPECIFICATIONS
Frequency ranges
B7 option: 470 ÷ 663 MHz
B3 option: 510 ÷ 698 MHz
B2 option: 566 ÷ 798 MHz
B8 option: 940 ÷ 960 MHz
B6 option: 960 ÷ 1160 MHz
B9 option: 1240 ÷ 1260 MHz
Switchable channels
2400 managed in 40 groups of 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 or 20 mW / 20L mW / 50 mW /100 mW
note: in some countries high power can be disabled, for local norm!
Modulation
Wideband/Narrowband FM, with pre-emphasis
Nominal deviation
±40 kHz Wideband, ±25 kHz Narrowband
Peak deviation
±56 kHz Wideband, ±35 kHz Narrowband
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) Wideband with LPF at 20kHz
45 Hz ÷ 17 KHz (3dB), 55 Hz ÷ 15 KHz (1dB) Narrowband with LPF at 15kHz
Distortion
< 0.3 % (0.15 % typ.)
SND/D ratio
(Analogue)
typ. 115 dB (A)rms with 40 kHz deviation, typ. 121 dB (A)rms with 56 kHz deviation Wideband
typ. 115 dB (A)rms with 25 kHz deviation, typ. 121 dB (A)rms with 35 kHz deviation Narrowband
Audio input connector
directly interchangeable microphone-heads
Audio input level
60 dB adjustable range from -54 to +6 dBu at peak deviation (1 kHz), adj. in 1 dB steps
Max input level
+6 dBu
Max sound pressure
150 dB SPL (0,5% THD), with MCM30x 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@3V average (display off, 100mW power)
Battery life
with Alkaline:
up to 14 hours @ 10mW, approx. 12 hours @ 20mW, approx. 10 hours @ 50mW ,
approx. 7 hours @ 100mW or @ 20mW Intermod Free “20L” level
with Lithium: approx. 7 hours @ 100mW
Temperature range
-10 ÷ +55 °C
Dimensions
183 x 33 mm (length x diameter) without microphone-head
Weight
Approx. 150g only body, 280 g with head MCM306, 330g with head MCM306 and batteries