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Yesterday β€” 6 July 2024Main stream

A short tutorial to simulate your Kicad PCBs in openEMS using Gerber2EMS

6 July 2024 at 18:22

OpenEMS, an open-source tool for simulating electromagnetic structures, has been a valuable resource for the scientific community for some time. Its capabilities continue to expand, thanks to ongoing contributions that add new functionalities. While...

The post A short tutorial to simulate your Kicad PCBs in openEMS using Gerber2EMS appeared first on Nuclearrambo.

Before yesterdayMain stream

Build Your Own VK3IL Pressure Paddle: Alan’s (W2AEW) Step-by-Step Video Tutorial

3 June 2024 at 16:39
Our good friend Alan (W2AEW) has just posted a video on his excellent YouTube channel showing how to build the VK3IL pressure paddle. He also explains how the key works using the schematic and gives tips for working with the surface mount components. This paddle is an exceptional key and quite inexpensive to build! Click … Continue reading Build Your Own VK3IL Pressure Paddle: Alan’s (W2AEW) Step-by-Step Video Tutorial β†’

Alan demonstrates how to quickly tune the TR-45L’s Z-Match Tuner

23 April 2024 at 12:35
Our friend Alan (W2AEW) just published this excellent short video demonstrating how to quickly tune the Penntek TR-45L’s Z-Match ATU. Of course, this same technique can be applied to the Emtech ZM-2 or any other manual Z-Match tuner: An excellent tutorial, Alan! Thank you!

Benefits of adding parallel batteries in an off-grid system

29 December 2023 at 16:13
This tutorial demonstrates how to connect two 12-volt batteries in parallel using Power Queen 12.8V, 100Ah, 1280Wh lithium iron phosphate batteries. The provided YouTube link offers a detailed guide. For related content, explore building a solar-powered Off-Grid Ham Radio Station and information on radio-friendly MPPT charge controllers and off-grid communications.

Noise Figure measurement with TinySA Ultra

22 April 2023 at 12:18

In an article I wrote long time ago, I measured the noise figure of an amplifier using only a spectrum analyzer. The method I used was relatively simple but it took some mathematical understanding...

The post Noise Figure measurement with TinySA Ultra appeared first on Nuclearrambo.

Using the Signal Integrity tool in Altium Designer – Part 2

19 March 2023 at 13:18

In part 1 of the article series, We learnt how to set up our design for performing signal integrity analysis using Altium’s in-built Signal Integrity tool. The process turned out to be quite simple...

The post Using the Signal Integrity tool in Altium Designer – Part 2 appeared first on Nuclearrambo.

Using the Signal Integrity tool in Altium Designer – Part 1

26 February 2023 at 19:06

Our designs are becoming faster to serve our ever-growing demands from machines. Speed brings more complexity to the design. The usual slow transitions from 0 to 1 and 1 to 0 become so fast...

The post Using the Signal Integrity tool in Altium Designer – Part 1 appeared first on Nuclearrambo.

Quickly designing a 23cm Hairpin filter in ADS

23 October 2022 at 13:57

A 23cm hairpin filter operates around the 1.296GHz amateur radio band. The frequency being low enough allows us to fabricate it on a low cost FR4 substrate. It operates as a bandpass filter. There...

The post Quickly designing a 23cm Hairpin filter in ADS appeared first on Nuclearrambo.

LM2731 boost converter in Altium Designer – From schematic to PCB

18 September 2022 at 16:14

In this quick article, I show step by step process of drawing a boost converter schematic and finally ending up with a PCB layout. All of it done on Altium designer using Altium’s own...

The post LM2731 boost converter in Altium Designer – From schematic to PCB appeared first on Nuclearrambo.

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