darksidelemm

// An attempt at making a 'press-fit' BNC-compatible connector
// Using the inner part of a BNC plug from RFSupplier.
//
// First print attempt used Bambu 0.12mm high quality setting and a 0.4mm nozzle.
//
// Mark VK5QI

// Smoother rendering of cylinders
$fn = 50;

darksidelemm

Mark VK5QI 2025-04-19

This assumes you have a functioning wsprdaemon setup, using ka9q-radio and RX888 receiver.

Install Direwolf

We can just get direwolf from the Ubuntu package repositories:

sudo apt-get install direwolf

darksidelemm

[Unit]
Description=spyserver
After=syslog.target

[Service]
# For running outside of a python virtual environment
ExecStart=/home/pi/spyserver/spyserver /home/pi/spyserver/spyserver_autorx.config
Restart=always
RestartSec=15
WorkingDirectory=/home/pi/spyserver/

darksidelemm

# SPY Server Configuration File for radiosonde_auto_rx
# Modify as necessary, refer to comments throughout the file.

device_type = AirspyOne
# Device Serial Number as 64bit Hex, or set to 0 to use the first available device
device_serial = 0

# Initial Center Frequency
# Recommendations for Airspy Mini (6 MHz sample rate, 4.8 MHz usable):
#   Australia - 402500000

darksidelemm

#
#	SSDV Image Grabber
#
#	Author: Mark Jessop <[email protected]> ~2022
#
#	Dependencies:
#	  * Python 3
#	  * Python libraries (install using pip):
#	    * requests
#	    * wget

darksidelemm

#!/usr/bin/env python
#
#   Hacky Rig Sync Utility.
#
#   Reads frequency from one rigctld server, and sends it to another rigctld server.
#
#   My use-case: Syncing up a SDR++ instance (connected to a remote spyserver) to my
#   Icom IC-7610. In my case I'm using wfview's rigctld server to access the Icom.
#
#

darksidelemm

#
#	SSDV Image Grabber
#
#	Run with:
#	python ssdv_grabber.py CALLSIGN TIME
#	where CALLSIGN is the payload callsign, and
#	TIME is the time of the oldest image, as %Y-%m-%dT%H:%M:%SZ
#
import requests
import argparse

darksidelemm

Based on a 2021-03-22T22:20:00Z launch, into a 45 degree inclination, 550km circular orbit. 
Rocketlab press kit: https://www.rocketlabusa.com/assets/Uploads/Flight-19-They-Go-Up-So-Fast-Press-Kit-small.pdf
Note that the press kit has a launch time of 20:21Z, and the website ( https://www.rocketlabusa.com/missions/next-mission/ ) has a launch time of 22:20Z. I'm going with the latter.

I'm using this process to generate the TLE: https://gist.github.com/darksidelemm/60dd22c74ebe2e6d89bae9e6a845da5e

22:20Z Launch:
1 99999U          21081.93402778  .00000000  00000-0  50000-4 0    09
2 99999  45.0000 100.0000 0001443   0.0000 243.5000 15.05492052    06

darksidelemm

Project Horus Flight 55 - LoRaWAN Payload Reception Information

• Author: Mark Jessop <vk5qi(at)rfhead.net>
• Date: 2021-03-07

Hardware Used:

• RAK Wireless RAK5205 running modified firmware to enable the uBlox GPS receivers 'Airborne' dynamic model.
• Source Code available here: https://github.com/darksidelemm/RAK5205_hab

Longest Range

Longest Range was 585.6 km to "Federation University - Meshed - 4 - AU915" (Ballarat, Victoria), with the payload at 30333 mASL.

darksidelemm

#!/usr/bin/env python
#
#   Print out AX25 dst/src callsigns, and packet path from a SatNOGS HexTDump
#
#   Example: python ax25_callsigns.py "AE 90 64 B0 A0 9A 60 9C 6E A6 96 86 40 E1 03 F0 00"
#
import codecs
import sys