kopia lustrzana https://github.com/projecthorus/wenet
62 wiersze
1.8 KiB
Bash
Executable File
62 wiersze
1.8 KiB
Bash
Executable File
#!/bin/bash
|
|
#
|
|
# Wenet RX-side Initialisation Script - HEADLESS DOCKER VERSION
|
|
# 2022 Mark Jessop <vk5qi@rfhead.net>
|
|
#
|
|
# This code mostly assumes an RTLSDR will be used for RX.
|
|
#
|
|
# This version of the startup script is intended to be run as a Docker container
|
|
# on a headless Raspberry Pi 3B+ or newer.
|
|
# A display of imagery and telemetry can be accessed at http://<pi_ip>:5003/
|
|
#
|
|
|
|
# Check that a callsign has been set.
|
|
if [ -z "$MYCALL" ]; then
|
|
echo "ERROR: MYCALL has not been set."
|
|
exit 1
|
|
fi
|
|
|
|
# Defaults
|
|
: "${RXFREQ:=443500000}"
|
|
: "${DEVICE:=0}"
|
|
: "${GAIN:=0}"
|
|
: "${BIAS:=0}"
|
|
: "${BAUD_RATE:=115177}"
|
|
: "${OVERSAMPLING:=8}"
|
|
|
|
# Start up the SSDV Uploader script and push it into the background.
|
|
python3 ssdvuploader.py "$MYCALL" &
|
|
SSDV_UPLOAD_PID=$!
|
|
|
|
# Start the Web Interface Server
|
|
python3 wenetserver.py "$MYCALL" &
|
|
WEB_VIEWER_PID=$!
|
|
|
|
# Calculate the SDR sample rate required.
|
|
SDR_RATE=$(("$BAUD_RATE" * "$OVERSAMPLING"))
|
|
|
|
# Calculate the SDR centre frequency.
|
|
# The fsk_demod acquisition window is from Rs/2 to Fs/2 - Rs.
|
|
# Given Fs is Rs * Os (Os = oversampling), we can calculate the required tuning offset with the equation:
|
|
# Offset = Fcenter - Rs*(Os/4 - 0.25)
|
|
RX_SSB_FREQ=$(echo "$RXFREQ - $BAUD_RATE * ($OVERSAMPLING/4 - 0.25)" | bc)
|
|
|
|
echo "Using SDR Sample Rate: $SDR_RATE Hz"
|
|
echo "Using SDR Centre Frequency: $RX_SSB_FREQ Hz"
|
|
|
|
if [ "$BIAS" = "1" ]; then
|
|
echo "Enabling Bias Tee"
|
|
rtl_biast -d "$DEVICE" -b 1
|
|
fi
|
|
|
|
# Start up the receive chain.
|
|
echo "Using Complex Samples."
|
|
rtl_sdr -d "$DEVICE" -s "$SDR_RATE" -f "$RX_SSB_FREQ" -g "$GAIN" - | \
|
|
./fsk_demod --cu8 -s --stats=100 2 "$SDR_RATE" "$BAUD_RATE" - - 2> >(python3 fskstatsudp.py --rate 1 --freq $RX_SSB_FREQ --samplerate $SDR_RATE) | \
|
|
./drs232_ldpc - - -vv 2> /dev/null | \
|
|
python3 rx_ssdv.py --partialupdate 16 --headless
|
|
|
|
# Kill off the SSDV Uploader and the GUIs
|
|
kill $SSDV_UPLOAD_PID
|
|
kill $WEB_VIEWER_PID
|