23cm

23cm related activity

Eltek Flatpack2 HE 48V/2000W Controller

An Eltek Flatpack2 HE 48V/2000W rectifier is being used as the power supply for a 23cm 600W LDMOS Power Amplifier project.

This touchscreen controller has been developed to control the Flatpack2 HE 48V/2000W, and display its data.

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10 MHz GPSDO

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 enclosure.

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Above: Under the hood! A DEMI 4-way Splitter/Amp/Filter, and a Futurlec DC-DC converter board inside

The Futurlec dual DC Read more...

S/E QLD 2013 Microwave Test & Tune Day

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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S/E QLD Microwave Activity Day, Feb 2013

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


 

VK4 Microwave Activity Day (MAD), Feb 24, 2013 – Part 2


 

VK4 Microwave Activity Day (MAD), Feb 24, 2013 – Part 3


 … Read more...

S/E QLD Microwave Activity Day, Oct 2012

This video takes a look at the S/E QLD Microwave Activity Day (MAD) on October 28, 2012.

See VK4ADC, VK4AQF, VK4EA, VK4GHZ, VK4KJJ, VK4OE, VK4UH, VK4ZQ operating on the microwave bands around South East Queensland.


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S/E QLD 2012 Microwave Test & Tune Day

This is a 2-part series covering the VK4 2012 Microwave Test & Tune day, held at the Redcliffe & Districts Radio Club rooms on September 16, 2012.

S/E QLD Microwave 2012 Tune Up Day – Part 1

 

S/E QLD Microwave 2012 Tune Up Day – Part 2

 … Read more...

VHF/UHF Summer Field Day 2012 at VK4GHZ/P

Join team members:
Adam, VK4GHZ
Alan, VK4WR
Graeme, VK4FI
Scott, VK4CZ
at their Summer Field Day station atop Mt Richmond, in Northen NSW.

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