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 was a viable alternative for FPV … Read more...
Electronics | Amateur radio | Nerdy Stuff
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 was a viable alternative for FPV … Read more...
There are many ham radio orientated apps available from Google Play for your Android device, and I will be documenting a few of the apps I have found useful here.… Read more...
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 VK4EA did a site recce at … Read more...
Looking for a 1296 MHz (23cm) Power Amplifier?
After discounting a W6PQL based kit, a PE1RKI 23cm 150W Power Amplifier was decided upon.
Like the W6PQL design, the PE1RKI (Bert … Read more...
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 the Contest Manager did not quote … Read more...
Finally!
Presenting the VK4 Microwave Activity Day video for July 2013.
Thank you to all those who shot some video – without the efforts of these people – there would … Read more...
Depending on the size and wind load of your antenna system, you may be able to get away with using tripods and mounting schemes intended for consumer grade video and … Read more...
This article also applies to: Yaesu FT-7800, FT-7900, FT-8100, FT-8800, and FT-8900
Having just recently acquired a pair of Yaesu FT-7800R VHF/UHF Twinband transceivers, a programming cable was now needed.… Read more...
A Trimble ThunderBolt GPS Disciplined Oscillator (GPSDO) is the main 10 MHz station reference, and was originally built into a dual-band 2.4/3.4 GHz transverter system.
Now that a larger and … Read more...
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 right, mounted on a slab of … Read more...
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 Philipp Prinz, DL2AM, this requires;… Read more...
Post by N1JR ยป 08 Jun 2012, 21:03
I sometimes use “Lady Heather” monitor software on my computer for my Thunderbolt.
I have noticed that when I do, after a … Read more...
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.
A fun MAD (Microwave Activity Day) … Read more...
I was recently considering the purchase of one these 2.7 GHz frequency counters, available from Jaycar and other suppliers.
Although 2.7 GHz capability is very appealing, a primary requirement was … Read more...
Tech Talk at the Redcliffe & Districts Radio Club, September 16, 2013, “A passion for microwaves”, by Doug Friend, VK4OE.
Doug discusses some microwave history, and takes a look at … Read more...