HeyWhatsThat! Coverage Prediction Software

Coverage prediction software is nifty and handy, the internet and powerful computers have made the availability of predicting coverage footprints for transmitters and the visible horizon from any location on the globe really easy. A number of simple software packages that let you predict these items are Hey Whats That http://www.heywhatsthat.com/ and Radio Mobile Online http://www.cplus.org/rmw/rmonline.html. I’ve written…

Sota Activation – VK3/VC-022 Mt Cowley 2014

Work took me back to western Victoria yesterday, with an early morning meeting in Warrnambool which meant a very early morning trip form Melbourne. Having finished all my tasks by mid-day, I took the opportunity to undertake some RF survey works taking the coast road back to Melbourne, looking at some site options for some…

RaspberryPi WSPR Beacon – WsprryPi

The inspiration to purchase a RaspberryPi originally came from reading an article about turning it into a simple HF WSPR beacon. The device will output around 10 milliwatts directly from the GPIO4 pin and once connected to antenna will transmit away!. The first step was to build a simple band pass filter, i choose 30m/10Mhz…