Portable Microwave Sig Gen

August 7, 2013 Adam 0

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...

RF HamDesign Ring Feed

August 7, 2013 Adam 0

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...

ZL2BKC ZL PLL programming lead

August 7, 2013 Adam 0

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...

VK3XDK 2.4 GHz transverter project

August 7, 2013 Adam 0

I’ve had an interest in microwaves for many years, but never knew quite how to kick start it off.

2.4 GHz seemed like a good place to start.

Let’s face it, finding information on how to get started on the … Read more...

Kuhne G3 Ext Ref level

August 7, 2013 Adam 0

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...

Mounting a ThunderBolt Display

August 7, 2013 Adam 0

Unit #1 – Within Transverter enclosure, no screws visible from front panel

This is the part I have been dreading… actually mounting the display, and preferable in a strong manner that is invisible from the front.

To be really strong … Read more...

Video: ThunderBolt Display

July 17, 2013 Adam 0

ThunderBolt Display
Take a look at the VK4GHZ ThunderBolt Display, and see what it does.

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This video has been removed, due to design piracy.
One lazy dumb-ass Pom couldn’t even come up with his own original page

Read more...
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Video: Mellish Reef DXPedition 2002

July 17, 2013 Adam 0

Here is the official collection of VK9ML Mellish Reef DXpedition 2002 videos.

VK9ML Mellish Reef DXpedition – Part 1
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VK9ML Mellish Reef DXpedition – Part 2
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VK9ML Mellish Reef DXpedition – Part 3
[jwplayer … Read more...

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3.4 GHz Transverter Testing

July 17, 2013 Adam 0

Videos of some 3.4 GHz experiments.

First, the initial 3.4 GHz transverter receive test, placing a VK3XDK Signal Generator several streets away.
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3.4 & 2.4 GHz setup with VK4EA/P, January 2013 during the Summer Field Day.
[jwplayer … Read more...

S/E QLD Microwave Activity Day, Feb 2013

July 17, 2013 Adam 0

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...

10 GHz VK3XDK Transverter Testing

July 17, 2013 Adam 0

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...

ICOM IC-910 Multi-Send Kit

July 16, 2013 Adam 0

1 August 2015 Update:

ALL KITS SOLD OUT – This is a discontinued item

 
 

 

 
For the serious VHF/UHF station!

IC-910 Multi-Send is an in-line device, powered by the IC-910, and provides unique and isolated relay outputs … Read more...

ThunderBolt Commander

July 16, 2013 Adam 0

What does the ThunderBolt Commander do?

ThunderBolt Commander can send four pre-defined command packets to a Trimble ThunderBolt Disciplined Clock.

Primarily, it is used to change the ThunderBolt’s receiver mode between OverDet Clock and Full Position 3D.

 

Watch the Read more...

ThunderBolt Display

July 16, 2013 Adam 0

SOLD OUT !     Note: This is a discontinued item.   Sorry, there are absolutely no plans to build anymore.

thunderbolt_web16

Availability: September 2013
 
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What does it do?

ThunderBolt Display is a stand-alone microprocessor-controlled LCD specifically … Read more...

Building a 10 GHz Pipe Cap Filter

June 7, 2013 Adam 0

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...