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;
My Kuhne 10 GHz … 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) on 10 GHz!
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One thing that became apparent when using a single XDK PLL board in a dual-band 2.4/3.4 GHz transverter system, is that the PLL’s limitation on producing even MHz only, necessitates using different IFs.
For 2403, (1970 LO), a 433 MHz … Read more...
Kuhne provide a PLL Lock status LED on the PLL board of their G3 transverter modules.
This LED is inside the module, which is great when the lids are off on the shack bench, but of limited value when out … Read more...
I was caught by surprise out in the field the other day, when my new Kuhne MKU 10 G3 432 appeared to not work.
But it worked fine on the shack bench.
Unlike my Kuhne MKU 57 G3 432, it … Read more...
My Down East Microwave Inc 3W 10GHz amp kit arrived in the mail recently.
It was ordered on 14/4/11 and arrived 20 days later on 4/5/11.
There aren’t too many pictures on DEM’s website, but here is a quick look … Read more...
Here’s a rundown of my Trimble Thunderbolt GPSDO project.
It provides an accurate 10MHz reference for the transverter Local Oscillator PLLs.
The existing Thunderbolt mounting holes will be utilized, and mounted in a vertical orientation, inside the 3RU 2.4/3.4GHz transverter … Read more...
This is a small and convenient microwave signal generator, for use in the shack or out in the field as a check source.
It is based upon the popular VK3XDK PLL Synthesizer board.
The antenna is a WA5VJB log periodic, … Read more...
Here is a quick review at the RF Ham Design tri-band ringfeed for 9, 6 and 3cm, model # FPF R963, and accessory mounting bracket, CLX-1.
Although RF Ham Design produce quite a number of [url=http://www.rfhamdesign.com/products/parabolicdishkit/dishfeeds/index.html]parabolic dish ringfeeds[/url], and already … Read more...
Well, I finally got a chance to have a play with my new “ZL PLL” board from Wayne, ZL2BKC.
First thing to do was organise a programming lead.
Being curious, I initially tried using a PICAXE AXE027 lead, but nope, … Read more...
The Kuhne MKU xx G3 432 transverter modules have inbuilt OCXOs LOs (Oven Compensated Crystal Oscillator Local Oscillators), and whilst very good, they can be locked to an external 10 MHz reference from a GPS Disciplined Oscillator (GPSDO), such as … Read more...
A 3-part series covering the S/E Queensland Microwave Activity Day (MAD) on February 24, 2013.
VK4 Microwave Activity Day (MAD), Feb 24, 2013 – Part 1
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VK4 Microwave Activity Day (MAD), Feb 24, 2013 – Part 2… Read more...
Three videos testing a VK3XDK 10 GHz transverter system.
The first 10 GHz transverter system test is a short range test across the Brisbane River to VK4WR.
[jwplayer mediaid=”105″ image=”http://vk4ghz.com/wordpress/wp-content/uploads/Poster-10G-Test1.jpg”]
Second 10 GHz transverter system test
[jwplayer mediaid=”94″ … Read more...
This is an overview on building a band pass filter for the 10 GHz amateur band using copper plumbing end caps.
Ideal when using a signal generator at lower frequencies, where you want to filter the fundamental and undesired harmonics.… Read more...
This video by Peter, VK4EA, covers the VK4 2013 Microwave Test & Tune day, held at the Redcliffe & Districts Radio Club rooms on April 21, 2013.
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