19 Sep Local Radio Interference
There are two types – one you can’t do much about such as power line interference and the neighbour’s solar installation, and one you can....
Author: vk3fs
17 Sep Solar termination events
Understanding the Sun and its cycles is key to predicting space weather....
11 Sep Getting on the 5.7 GHz 6cm microwave band
The 6cm or 5.7 GHz amateur radio band is accessible to standard and advanced licensees in Australia. Here's how to get on the band. It’s the higher of the two WiFi bands but doesn’t seem to suffer the noise problem like its poor 2.4 GHz or 13cm, cousin. ...
01 Sep 12v shack backup. Choose quality powergates over junk
Powergates, PWRgates, power paths, power plus, power mini, there are so many names for devices that switch to a battery for power when your mains supply fails. Choosing quality power switching over junk is super important....
21 Aug The new IC-905 VHF to 10 GHz amateur radio
The new Icom IC-905 VHF to 10 GHz amateur radio from a microwave enthusiast's point of view. Home station or portable? Well, it's microwave!...
17 May M5Stack for the IC-705
Icom's IC-705 is a versatile portable radio. It's a modern amateur radio transceiver that has built-in WiFi. Many radio amateurs like to push the bounds of technology and this radio certainly makes it easy. Check out the M5Stack options for the IC-705...
22 Apr 10 GHz portable over 150km
One of the best things about our wonderful hobby of amateur radio is going portable, especially 10 GHz portable. When your passion is microwave, getting up on top of a hill is even more motivational. ...
29 Mar IC-705 8 pin mic adapter
What if you want to use a different microphone with your IC-705? Here's an 8 pin mic adapter - a circuit that does the job, but it does have its shortcomings. Maybe that's why Icom doesn't have an optional cable....
22 Mar NBN: Mitigating Amateur Radio Interference to VDSL2
Mitigating Amateur Radio Interference to VDSL2 is a challenge most of us face unless you're lucky enough to be area serviced by fibre. This document published in March 2022 by NBN Co finally explains the link between frequencies used by amateur radio operators - 80 and 40m, and the VDSL2...
04 Mar Arduino 12v interface
This circuit describes a Darlington pair that switches a nominal 12v VCC. The choice of the final switching or output transistor determines the current (Ic) that is supplied to the downstream device....