MTP41S Miniature Transmitter with Lemo Input

<Switchable Channels> 2400 allocated by 40 groups of 60 channels (in specific frequency range), quickly selectable with dedicated buttons </Switchable Channels> <Switching Window> Up to 232 MHz, depending on band (see below code table) </Switching Window> <Frequencies> Quartz PLL frequency synthesizer circuit (25 kHz step) </Frequencies> <Frequency Stability> ± 2.5 ppm (in the rated temperature range), ± 2.5 kHz (in the rated temperature range) </Frequency Stability> <Temperature Range> -10 ÷ +55 °C </Temperature Range> <Max RF Power> 50 mW (ERP) when high power selected, 10 mW (ERP) when low power selected </Max RF Power> <Spurious Emissions> < 2 nW </Spurious Emissions> <Modulation> Wideband FM, with 50 µs pre-emphasis </Modulation> <Nominal Deviation> ±40 kHz (Peak deviation = ±56 kHz) </Nominal Deviation> <Telemetry Feature> The MTP40 transmits also a digitally modulated sub-carrier, suitable for: tone-squelch operating, remote battery monitoring, optional PTT (push to talk) operation </Telemetry Feature> <AF Input Connector LEMO Option> Configurable on ‘mic’ display menu in 3 options: ’2 wires’: gain selectable -40 ÷ +40 (-54 dBu ÷ +26 dBu peak), no bias voltage, ‘2 wires + bias’: gain selectable -20 ÷ +40 (-54 dBu ÷ + 6 dBu peak), 5.5 V on 4k7 bias supply, ‘3 wires: gain selectable -40 ÷ +40 (-54 dBu ÷ +26 dBu peak) </AF Input Connector LEMO Option> <AF Input Level> 80 dB adjustable range from -60 dBu (775 uV) to 26 dBu (15.5 V) at peak deviation (1 kHz), adjustable in 1 dB steps </AF Input Level> <Max. Input Level> +26 dBu (15.5 V) at clipping, +20 dBu (7.75 V) at nominal level </Max. Input 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 </Noise Reduction> <AF Bandwidth> 45 Hz ÷ 21 KHz (3dB), 55 Hz ÷ 20 KHz (1dB) </AF Bandwidth> <Distortion> < 0.3 % (0.15 % typ.) </Distortion> <Signal-To-Noise Ratio> typ. 115 dB (A)rms with 40 kHz deviation, typ. 121 dB (A)rms with 56 kHz deviation </Signal-To-Noise Ratio> <LED> RGB LED indication (red, green and blue): Wireless transmission status: GREEN when RF transmission power is on, RED when RF transmission power is off, BLUE when the input signal is above the peak threshold (limiter activated); Modulation peak (if activated & limiter disabled): RED Battery lifetime status: GREEN - steady (> 25%) - slowly blinking (< 25%) - quickly blinking (<12%), Ptt status: RED if active </LED> <Display> High contrast OLED (Organic Light-Emitting Diode) bicolor display (96 x 36 pixels), 8 step battery lifetime indication: 7 bars (100%-87%-75%-63-50%-38%-25%) and “empty bar” quickly blinking (12% remaining) </Display> <PTT Function> Pin 3 of the AF connector can be setup to an external push button </PTT Function> <Power Supply> 1 AA size batteries (Alkaline, rechargeable NiMH) </Power Supply> <Battery Life> Approx. 5 hours @ 50mW continuous working, approx. 7 hours @ 10mW continuous working </Battery Life> <Dimensions>2.3" x 2.5" x 0.9"</Dimensions> <Weight> Approx. 60 g. without batteries </Weight>