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VK7AX  > WIA      19.07.26 04:40l 40 Lines 1861 Bytes #999 (0) @ WW
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Subj: Amateur Radio Magazine Issue 4 Is On Its Way!
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Amateur Radio Magazine Issue 4 Is On Its Way!

Date : 16 / 07 / 2026
Author : Roger Harrison VK2ZRH

The theme for Issue 4 is Basics & More

Contents for the issue range across advice for new contesters, whatâ€Ös “the dealâ€� with end-fed-half-wave antennas, 
building a 1-to-1 balun for HF through UHF and not a ferrite core in sight, to answering the nagging puzzle of 
why everything is built around 50 Ohms.

Contesting is for fun. 
For some amateurs, itâ€Ös serious fun. 
If youâ€Öre new to contesting, we have an article on Ten Tips to Untangle the Tripups. 
Before you call CQ Contest, itâ€Ös a “must read.â€�

Those intent on tackling the technologies encountered in communications gear, you can get to grips with operational
amplifiers, or op-amps for short. 
With the cover featuring a topless transistor, wait till you see a topless op-amp! Author Elmo Jansz VK7CJ explores 
the basics of op-amp circuits, step-by-step.

Speaking of circuits and circuitry, Part 3 of Lou Destefanoâ€Ös Foundation class transceiver project for 80 and 40 metres 
covers the VFO and the two front panel displays.

Meanwhile, Garry Gibson VK2DBN answers the questions about 50 Ohms that have hung in the air for ages – why was that 
value chosen, who thought up 50 Ohm coax, and why wasn't a different value chosen?

The Wireless Institute of Australia is Australia's national amateur radio peak body, powered by volunteers who contribute 
their time, expertise and passion to advance amateur radio for the benefit of the entire community.


Page Last Updated: Saturday, 18 Jul 2026 at 15:08 hours by Justin Giles-clark

(Sourced from  https://www.wia.org.au/newsevents/news/2026/20260716-2/index.php)

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    (Posted to the packet radio network on behalf of WIA courtesy Tony VK7AX)



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