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#pocsag — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #pocsag, aggregated by home.social.

  1. Bosco @[email protected] ·

    The festival of harmonic measurement after the power amplifier has begun. The power amplifier for 70 cm already has a low-pass filter built in. But I'm still missing 10 dB. #dapnet #pocsag #hp #agilent #keysight

    #dapnet #pocsag #hp #agilent #keysight
  2. Signalspielplatz @[email protected] ·

    More custom PCBs for the pager system arrived! These header PCB for Pi are for our additional new transmitters so we'll be able to cover all of #39c3.

    Designed by one of our engineers.

    #DIYPager #transmitter #PCB #CustomPCB #PrintedCircuitBoard #ChaosPager #POCSAG

    #39c3 #diypager #transmitter #pcb #custompcb #printedcircuitboard
  3. Alex@rtnVFRmedia Suffolk UK @[email protected] ·

    140m range (double the whole building area!) from these small €8 #POCSAG transmitters to the pagers at only +18 dBm with a UHF coil antenna (there does seem to be quite decent RF groundplane on the PCB).

    For those who are curious the TX is an SI4432 controlled by a STC11L04 MCU

    #pager #radiocommunication

    #radiocommunication #pager #pocsag