Poor man’s Bunnings Balun
If you have had a look at the cost of a commercial BALUN, you will question if it’s worth the effort to make your own… it IS! Read the PDF article here>
Read moreICOM IC-7200 & MFJ-974B + one more
Three new items on our marketplace page for you to check out… Go to Marketplace page>
Read moreRoof Top Run 2019
This year’s Roof Top Run went off without any major incidents.
Read moreMMDVM Hot Spot Modification
MMDVM Hot Spot Modification Net-Switcher) Updated version. Roger Clark (VK3KKY) earlier in November 2018 posted on his blog an interesting modification to the Jumbo/Zum spots, be it simplex or repeater boards, as long as the processor board used is a Raspberry Pi… Article submitted by Rob VK2YMU
Read moreNew photos
Some new photos of Upper Murray Challenge and JOTA 2018…
Read moreQuarter wave antenna – from junk
Recently Rob VK2FAAA found himself with a few minutes to fill in. So he decided to make up a two metre quarter wave antenna. He scratched around in his shed and came up with the lid of an old barbecue which he used as the base. For the antenna he used old copper tubing that was laying around. The SWR […]
Read moreLake Hume repeater repair
On Saturday 22nd September six members held a working bee at the repeater site at Lake Hume village. We needed to update the software to run the C4FM protocol of the 70 centimetre repeater and to repair the main aerial on the site, due to it having a high SWR. We lowered the tower and removed the antenna. Then disassembled […]
Read moreFrequency Measurement and Calibration Techniques
Some definitions need to be understood, the relationship of time and frequency. Time is a measure of an event start to finish, with alternating current, the wave starts and ends (380 deg.) one cycle event, the measured time from when it starts to when it ends, is the period… Click here to download the full PDF article:
Read moreRewarding Correspondence!
Kelly is from Charleston, South Carolina and she recently sent the below email to our secretary Russell Jacobs – VK2BJP. Very nice to know our website is being read from so far away! “Hi Mr. Jacobs, I hope your week is going well so far! My daughter Danielle has been spending some time with her grandparents when school gets out before […]
Read moreUnderstanding modern digital modulation techniques
Understanding modern digital modulation techniques Fundamental to all wireless communications is modulation, the process of impressing the data to be transmitted on the radio carrier. Most wireless transmissions today are digital, and with the limited spectrum available, the type of modulation is more critical than it has ever been. Read the full PDF article here: Source: Electronic Design. Lou Frenzel […]
Read moreDigital Voice Radio
Digital Voice Radio just became a lot easier “In the not so distant past”Sounds like the preamble of a book or movie. If you, are about to make the move into digital radio, you will be presented with choices, these will have an impact on your pocket and whom you will be able to talk to. Looking for what gives […]
Read moreHistoric videos to watch
The World of Amateur Radio-Amateur Radio Vintage Film The History of Radio documentary Thanks to Rob VK2YMU for sending in these treasures!
Read moreWireless-X The Bible
Wireless-X The Bible By Dewey L. Hee WB7OEV In his Prior life was a System Administration working for the Boeing Company. He became interested in Amateur radio while working for the Boeing company in 1972… He began to wonder what else he could do with the FTM 400 and discovered this mode called Fusion, (CFM) and got bitten with the […]
Read moreDigital Radio Hot Spot
Digital Radio Hot Spot If you’re like me, deciding to embark upon the world of digital radio, confusion is likely to be the result, likely to make you abandon the whole idea, going back to what you know and understand. However the digital mode experiencing rapid growth is DMR, but like all the others, requires a radio that uses that […]
Read moreHow much fuel is in your battery?
How much fuel is in your battery? The best way to determine the state of charge of a battery A battery is a store of energy. It can be considered as a container of water that is either full or empty. With a water container it’s easy to determine how much water you have left in the container. Similarly on […]
Read more