Albury Wodonga Amateur Radio Club
A friendly group of amateur radio enthusiasts
Interesting Engineering: When the Internet and Cell Phone Networks Go Down, Amateur Radio Operators Step Up. Click this link to read this interesting article published in the USA: Interesting Engineering: When the Internet and Cell Phone Networks Go Down, Amateur Radio Operators Step Up
Read moreAn issue confronting Raspberry Pi users is SD card corruption due do improper system shutdown. Ordinarily before removing power from the Raspberry Pi, one should execute the “sudo shutdown -h” Simple routine can be incorporated into the system, sensing either an operator shutdown or a power failure. Read the full PDF article here> Thanks to Rob VK2YMU for submitting this […]
Read moreProduct Review – Rode M3 Studio MicrophoneAustralian Made I don’t usually promote any product unless it offers great value for money with equally great performance. Usually the microphones provided by radio manufacturers, besides the high price tags don’t seem to give the expected audio quality that can be had with non OEM units. To read the full PDF article please […]
Read moreThe repeater had works done to improve the range, many thanks to all those who did the heavy lifting. The repeater can is now workable way past Corowa going east towards Albury, no exact coverage map exists presently. So any reports will be useful. The repeater is linked with connectivity to many parts of West Victoria, including Mitcham in Melbourne […]
Read moreNVIS This interesting article taken from hamradioschool.com shows the relationship of height verses propagation angle. To read the full article, click here: Australian Amateur Call Signs Australian Amateur Radio Call Signs A history overview The current series of Australian Amateur Radio Call Signs may seem baffling but looking back at the way in which our call signs have evolved shows […]
Read moreIf 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 moreMMDVM 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 moreRecently 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 moreSome 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 moreUnderstanding 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 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 moreWireless-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 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? 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 moreAre You Confused On How to Calculate Decibels? What is a logarithm ? The simplest definition of a logarithm is that of numerical result of a number raised to some power For example 10 x 10 = 100 can also be written as 10¬2 or Log10 (100) Note that in the statement “Log10” the base is stated with the number […]
Read more