PT100 DVB-T modulator

    pt100
    PT100 is a DVB-T modulator based on IT9507+AD8345 chips - http://www.hides.com.tw/product_pt100_eng.html
    !!! available from version from 2021.08.09

    There are 4 modulators on the board, with the characteristics:
    Frequency range 50~950MHz step size 1KHz
    Modulation - 64QAM/16QAM/QPSK
    Signal/Noise: 45dB
    RF Output Level -8 dBm (100 dBuV)

    Setup:
    Find the modulators number using the command:

    find "/dev" -name "it950x*"

    In the output of the command, we will get the numbers of the modulators:

    root@dvb:~# find "/dev" -name "it950x*"
    /dev/usb-it950x3
    /dev/usb-it950x2
    /dev/usb-it950x1
    /dev/usb-it950x0

    it950x0 - where 0 is the modulator number

    Let's set up Astra:
    An MPTS stream must be sent to the modulator
    In the output setting, we specify the type it950x: it950x://#adapter=0 (0 - modulator number)
    Additionally - there is an option gain=x (the percentage value can be in the range from 0 to 100) - this option controls the signal level.
    Astra receives data on the frequency and type of modulation from the completed NIT table in mpts.
    Setup example:
    step-2-2
    step-3
    step-4