Technical Specifications - WisyCom MTP41 User Manual

TECHNICAL SPECIFICATIONS

2400 allocated by 40 groups of 60 channels (in specific frequency range), quickly
Switchable
selectable with dedicated buttons
channels
Up to 90 MHz, depending on band (see below code table)
Switching
window
Quartz PLL frequency synthesizer circuit (25 kHz step)
Frequencies
▪ ± 2,5 ppm (in the rated temperature range)
Frequency
stability
-10 ÷ +55 °C
Temp.range
▪ 50 mW (ERP) when high power selected
Max RF power
▪ 10 mW (ERP) when low power selected
< 2 nW
Spurious
emissions
wideband FM, with 50 µs pre-emphasis
Modulation
±40 kHz (Peak deviation = ±56 kHz)
Nominal
deviation
MTP41 transmits also a digitally modulated sub-carrier, suitable for:
Telemetry
▪tone-squelch operating
feature
Configurable on 'mic' display menu in 3 options:
AF input
▪ '2 wires':
connector
▪ '2 wires + bias':
LEMO option
▪ '3 wires:
100 dB adjustable range from -60 dBu (775 uV) to 26 dBu (15.5 V) at peak deviation (1
AF input level
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
▪ 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
Led indication with bicolor led (red & green) on wireless power switch:
Led
▪ Wireless transmission status:
GREEN on/off
▪ Modulation peek (if activated): RED
High contrast OLED (Organic light-emitting diode) bicolor display (96 x 36 pixels)
Display
8 step battery lifetime indication: 7 bars (100%-87%-75%-63-50%-38%-25%) and "empty
bar" quickly blinking (12% remaining)
Pin 3 of the AF connector can be setup to an external push button
PTT function
1 AA size batteries (Alkaline, rechargeable NiMH, Lithium)
Power supply
▪ approx. 11 hours @ 50mW continuous working Lithium
MTP41 Battery
▪ approx. 8 hours @ 50mW continuous working with NiMH
life
▪ approx. 4.5 hours @ 50mW continuous working with Alkaline
MTP41 User Manual
▪ remote battery monitoring
gain selectable -60 ÷ +40 (-54 dBu ÷ +26 dBu peak), no bias voltage
gain selectable -60 ÷ +40 (-54 dBu ÷ +6 dBu peak), 5.5 V on 4k7 bias supply
gain selectable -60 ÷ +40 (-54 dBu ÷ +26 dBu peak)
with 40 kHz deviation
rms
with 56 kHz deviation
rms
▪ optional PTT (push to talk) operation
▪ Battery lifetime status: GREEN - steady (> 25%)
- slowly blinking (< 25%) - quickly blinking (<12%)
▪ Ptt status: RED if active
Rev.01
19