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The final detailed blog corresponds to the most difficult part of the review and potentially the most interesting as well – how well does the HMP4040.04 perform? I threw my barrage of test equipment at it to try and find out.   Things to Note If you have not read the unboxing chapter, it is important to note that this HMP4040.04 arrived in a damaged condition. Rather than delay releasing a RoadTest review significantly, I have decided to release this review of the damaged unit with an ...
While the Rohde & Schwarz HMP4040.04 can be used stand-alone, its true power lies when incorporated into an automated test system through the use of a computer controlling the power supply via SCPI commands.   Things to Note If you have not read the unboxing chapter, it is important to note that this HMP4040.04 arrived in a damaged condition. Rather than delay releasing a RoadTest review significantly, I have decided to release this review of the damaged unit with an understanding that ...
In the previous sections, I’ve taken a look at how the R&S HMP4040.04 compares to the rest of the products on the market and completed the unboxing process. In this blog, I will look at the usability aspects of the power supply, with some basic testing of functionality and special features.   Things to Note If you have not read the unboxing chapter, it is important to note that this HMP4040.04 arrived in a damaged condition. Rather than delay releasing a RoadTest review significan ...
In this section, I go through the most enjoyable part of owning a new product – the unboxing process. Except, in this case, it wasn’t so much enjoyable as somewhat depressing …   Thinking “Outside” the Box Being in Australia, I live roughly half-way around the world from most places, so things don’t always arrive swiftly nor in great shape. This particular shipment was no great exception and was plonked onto a hard concrete floor unceremoniously by a cou ...
In order to better understand how the Rohde & Schwarz HMP4040.04 stacks up with the competition, I like to begin my RoadTests by first looking at what the market has to offer and comparing on-paper specifications. This will give us an idea of how competitive the product is on specifications and pricing.   Surveying the Market … What Market? The Rohde & Schwarz HMP4040.04 is a four-channel, 384W programmable DC power supply. Knowing this, my initial instinct was to scour the N ...
It's been a while since I've blogged or even had the chance to build something, so last weekend when I was busy trying to get something to work, I was thwarted by a failure of an ESP8266 Wi-Fi Shield that was so elusive that derailed my plans entirely and resulted in butchering a few components.   However, out of the ashes of testing the components that remained, rose a little consolation prize built from scraps and half-broken bits. Something built for the "sake" of building it. Something ...