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…
I decided we needed to get some more people interested in sota, a number of members of the Ham club I’m involved in (EMDRC) had mentioned they were interested in SOTA, and a number had even acquired some portable gear with the intent of operating portable and even activating some sota summits. With the weather getting nicer,…
When Chrisitne got her new truck (4wd) I was keen to install some HF radio gear into it, i realised a codan 9350 auto tune antenna would be a nice addition, I had previously used a terlin tapped whip, and while this was a good performer, it was a pain to change bands when mobile!…
The other day i had some work in Albury/Wodonga. This is a very long day, with near on 8hrs of driving, though I did manage to sneak in 45mins for lunch and a Sota activation on Huon Hill, on the edge of Wodonga. VK3/VE-237. Huon Hill has a road to the top, you enter through…
Work had me in ballarat early friday morning the other week for a number of tasks, with a busy day of meetings then conference calls and other activities, however, i had some time between the calls and needed to NOT be driving while they were underway so i decided to get in a couple of…
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…
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…
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…
I’ve had my RaspberryPi for a while now, but lacked the time or ability to have a proper play with it. That changed the other night when a cheap HDMI-VGA adaptor arrived in the mail to allow me to connect the Pi to an old LCD monitor i have. (i got strange looks using the…
A lot of my Sota chasing is from the car! It’s where most of my radio activity is based.. But that creates it’s own issues. How do you write down all the summit details and chaser info while doing 110km/hr on the freeway! I’ve missed a lot of chaser points through missing the logging bit.…