Fixing a Radio Noisy Prado 150 Diesel

The trouble with operating from a car is, modern cars with electronic systems can be RF noisy! The diesel D4D engine in my Prado 150 series is no exception. With many sources of noise on the HF bands. From throttle noise to electronic injector noise, and base car background noise. Operating on some parts of…

FT817 Audio Speech Processor

  I blame Ben, VK2BEN for making me spend all my money, the other week, he shared with me a link to the below Speech Compressor designed to fit inside a Yaesu MH-31a8j microphone supplied with the FT817 radios. The ft817 has no built in speech compressor function, and this little PCB is designed to add…

Anderson Power Poles

Standardisation of power supply connectors is something I have recently been undertaking throughout the shack, car and my camper trailer. There is nothing worse than not having the right connector, having to make up some form of connector instead of just having that box work, and with the camper trailer, dealing with fiddly and flakey…

Portable Power for the 817ND

Now that I have my SOTA radio and portable antenna setup working. Portable power options were the next item on my list. The 817nd has internal rechargable batteries, and can use AA batteries also, i have 2 battery trays for AA rechargeable batteries and the internal Ni-Mh pack, but for extended 5w operation portable, an…