Portsdown 4 and Pluto plus / Antsdr 200 / ... with tezuka Firmware

Discussion about this major DATV Project. See https://wiki.batc.org.uk/The_Portsdown_Transmitter
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dg6te
Posts: 2
Joined: Thu Feb 19, 2026 6:22 pm

Portsdown 4 and Pluto plus / Antsdr 200 / ... with tezuka Firmware

Post by dg6te » Thu Feb 19, 2026 7:11 pm

Hi,
is there an official way to get this running?

dg6te
Posts: 2
Joined: Thu Feb 19, 2026 6:22 pm

Re: Portsdown 4 and Pluto plus / Antsdr 200 / ... with tezuka Firmware

Post by dg6te » Mon Feb 23, 2026 6:16 pm

Since I was a bit impatient,
I wrote a client in Go for the Tezuka firmware and modified the a.sh script:

The first shot is running:

Code: Select all

/home/pi/tezuka_cli -host $PLUTOIP -port 1883 -user root -password analog -call $CALL -gain $PLUTOPWR -pilots 0 -fec $PFEC -symbol_rate $SYMBOLRATE_K -constelation $CONSTLN -frequency $FREQ_OUTPUT -tssourceaddress $PLUTOIP:8282

      $PATHRPI"/ffmpeg" -loglevel $MODE_DEBUG -thread_queue_size 2048 \
        -re -loop 1 \
        -i $IMAGEFILE -framerate 1 -video_size "$VIDEO_WIDTH"x"$VIDEO_HEIGHT" \
        -c:v h264 -b:v $BITRATE_VIDEO \
		-f mpegts \
		-metadata service_provider="$CHANNEL" -metadata service_name="$CALL" \
        -mpegts_pmt_start_pid $PIDPMT -streamid 0:"$PIDVIDEO" -streamid 1:"$PIDAUDIO" \
        -mpegts_service_type "0x19" -mpegts_flags system_b \
        -muxrate $BITRATE_TS -y $OUTPUT \
        udp://$PLUTOIP:8282 &

Conditions:
Portsdown 4, AntSDR E200, PicoTuner

Any comments or Ideas?

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