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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(SOLD) For Sale: 150 Watt 23cm Power Amplifier

Based on the highly regarded PE1RKI power amplifier module, this is a fully assembled and tested – ready to use – 150 watt 1296 MHz power amplifier being offered for sale.

Ideal with Icom IC-910 10W class transceiver.

Features:
• 150 watt PE1RKI module ($430)
• N connectors
• Meanwell SE-24-450 24V 450W power supply, set at 27V ($170)
• IEC mains connector + 3AG fuse
• ARS-BPR-01N 20-32V DC-2.2 GHz 300W N High Power Coaxial Relay ($108)
• Dowkey 401 SMA fail-safe 28V relay ($50)
• 1/4″ copper heat spreader, machined face ($40)
• Heatsink, 12 V Muffin fan ($16)
• UT-141 semi-rigid coax
• Illuminated mains power switch
• Illuminated disable/enable switch
• Separate receive path ready
• 12V change-over ready
• Attractive 2 RU rack case
• Rubber feet

For safety, 240 volt mains wiring is heatshrinked.… 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

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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

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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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