This video shows a couple of 10 GHz and 24 GHz gunnplexer, briefly explains what they do and shows how they can be used to determine an object’s speed.
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Microwave
14 GHz Ku Band Block UpConverter
A quick look at what it takes to make a Block UpConverter (BUC) for the 14 GHz Ku-Band satellite uplink band work. A BUC is used in professional Broadcast TV environments to convert a video signal from a L-Band intermediate frequency to the 14 GHz range to be received by broadcast satellites.
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Lumped-Element Wilkinson Splitter / Combiner Design
This is a supplemental article to two of my videos on my YouTube channel about the theory and design of Wilkinson splitters and combiners. A Wilkinson divider is a specific class of power divider with high isolation between the output ports. This feature is particularly useful when used as a combiner. This article will show […]
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DIY Passive Probe for the GHz range
Passive probes for the GHz range are costly and it’s usually not too economical to invest into one if you’re just a hobbyist. But regular, cheap probes will not work on signals in the GHz range. So is there a homebrew solution? Yes, there is, check it out! Every passive probe and every piece of […]
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Repairing a MRC DAR Plus Receiver
This is another piece of industry story time. This time it’s about Vislink MRC DAR Plus receivers and transmitters. It shows that even highly integrated devices in the 1 each including shipping. After carefully replacing the MMIC on the PCB, I tested the IF module by applying a 70 MHz signal again. This time the […]
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Fixing a microstrip line in a professional Microwave ODU
A while back, I was asked if I could repair a ODU for a BMS Truck-Coder II. Someone had managed to rip the N connector straight off the casing, including a bit of the microstrip line from the distributed element output filter. See what approach I took to fix the broken stripline. The BMS Truck-Coder […]
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