The VK3AQZ MK4 rig was published in the WIA AR magazine over 6 issues. The rig uses 2 independent VFOs controlled by a pair of Arduino Mega2560s. The sketch files, and libraries used, are contained in the zip file below. Use the libraries in the zip files. Other libraries may work but not guaranteed. The full details are contained in the magazine and contents are held by the WIA. The first issue was Volume 87, Number 6, December 2019.
VK3AQZ MK4 software zip
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Downloads for the kits supplied by me but no longer made.
VK3AQZ RX1 Manual 
VK3AQZ RX2 manual
VK3AQZ RX1 kits update 14 Feb 2010
Lid screw attachment hint
RF deck assembly screw alignment problem
knobs too tight on shafts problem
VK3AQZ RFPM1 power meter kit V1
VK3AQZ ATTENUATOR kit manual
VK3AQZ CAL1 kit V1
TAP40 kit
dBm to voltage conversion chart
Uniden 2020 service and misc info ZIP file
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