5/16″ SMA Spanner Mods
Doug, VK4OE, shows us some handy modifications to a 5/16″ combination spanner to make it more user friendly when dealing with SMA connectors in
Microwaves
3.3 GHz FPV Cloverleaf Antenna
I was curious about how much bigger a 3.3 GHz cloverleaf antenna would be, compared to a 5.8 GHz antenna, to see if it
2.4 GHz Shoot Out Site Recce
The idea of 2.4 GHz “shoot out” was raised with the VK4 microwavers present at the last 5.7 GHz shoot out. Both myself and
PE1RKI 150W 23cm Power Amplifier
Looking for a 1296 MHz (23cm) Power Amplifier? After discounting a W6PQL based kit, a PE1RKI 23cm 150W Power Amplifier was decided upon. Like
W.I.A VHF/UHF Field Day Results
Results for the WIA VHF/UHF Field Day Summer 2014 contest have just been released. I was amused (it doesn’t take much) to note that
S/E QLD Microwave Activity Day, Jul 2013
Finally! Presenting the VK4 Microwave Activity Day video for July 2013. Thank you to all those who shot some video – without the efforts
Microwave Antenna Mounting Schemes
Depending on the size and wind load of your antenna system, you may be able to get away with using tripods and mounting schemes
Thermal Interface Material
“TIM” is the gunk that improves heat transfer from the device you’re attempting to cool down, to the heat sink. Also known as heat
3.4 GHz Power Amp upgrade
The dual-band 2.4/3.4 GHz transverter system currently runs a Toshiba UM2784B Power Amplifier on 3.4 GHz, nominally 8 watts output, as seen on the
DL2AM 10 GHz Power Amp
The DL2AM 10 GHz 10 Watt Power Amplifier arrived recently, and was “unboxed” today. (Click on the pictures, to see them full-size) Manufactured by
S/E QLD 10 GHz Activity Day, Oct 2013
Brisbane 10 GHz Activity Day, October 27, 2013 Iain, VK5ZD, is operating portable from the Gold Coast, whilst other stations are operating S/E QLD.
Tech Talk: A Passion for Microwaves
Tech Talk at the Redcliffe & Districts Radio Club, September 16, 2013, “A passion for microwaves”, by Doug Friend, VK4OE. Doug discusses some microwave
Toshiba 3.5 GHz 20W PA
Looking for some power on the 3400 MHz ham band? Toshiba UM2683B 3.5 GHz power amplifiers are available on eBay from AECI South, that
VK4 5.7 GHz Shoot out & BBQ
The Redcliffe & Districts Radio Club is pleased to announce the inaugural 5.7 GHz shootout Microwave Activity Day (MAD), starting at 11AM, Sunday 3rd
Video: Windfreak SynthNV
We take a look at sweeping an M2 23CM35 yagi for 1296 MHz using a Windfreak SynthNV USB powered and programmed RF Signal Generator
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