In March, 2012, Abracon announced the production of ultra-low jitter, VCXO based frequency translators / jitter attenuators. This is supposed to resolve some problems that accompany classic PLL-based designs at an affordable price. Now, the ABFT frequency translators / jitter attenuators are available on the market and it’s time to have a closer look. The […]
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Closer look at a Direct Sequence Spread Spectrum Signal
This article is going to take a closer look at the properties of a pseudo random bit sequence and a simple direct sequence spread spectrum signal both in the time- and frequency domain using the FFT capabilities of a Teledyne LeCroy WaveAce 1002. A while back, I posted an article about a Pseudorandom Number Generator […]
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Review: Teledyne LeCroy WaveAce 1002 – Digital Storage Oscilloscope
Low-cost oscilloscope are a booming market. With the low-cost, entry level WaveAce series Teledyne LeCroy wants to get their piece of the big cake. This review is going to have a closer look at the Teledyne LeCroy WaveAce 1002. The WaveAce series oscilloscopes from Teledyne LeCroy are LeCroy’s answer to low-cost entry level oscilloscopes. They […]
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Blown Capacitors – Repairing LCDs and TFTs
Blown capacitors have been around as long as capacitors themselves. Replacing defective capacitors is something every electronics engineer should be capable off. Let’s have a look how to turn a broken LC Display back into a functioning device. Free TVs and computer screens are almost literally laying on the side of the road. About a […]
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Demystifying RF Circuit Design – The art of Voodoo
Mike from Mikeselectricstuff did a very neat teardown of an Anritsu spectrum analyzer. However, he did call RF circuit design Voodoo and implied it’s some sort of black art. But is it really? Let’s have a look. If you watched the video of Mike [1] from Mikeselectricstuff tearing down an Anritsu spectrum analyzer, you might […]
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Review: Abracon ABPSM-ULN-A – Precision Power Supply Module
When bench testing noise sensitive circuits, one needs an ultra clean power source. Low noise lab power supplies are usually bulky and expensive. Abracon challenges both the bulkiness and the expensiveness with their new low noise pocket sized ABPSM-ULN-A ultra low noise power supply module. With the ABPSM-ULN-A, Abracon intends to set a new standard […]
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Review: Abracon Sync’n Go – Portable Precision Frequency Reference
Most professional devices which require high accuracy and precision have an input for some sort of external frequency reference. The frequency 10 MHz is an industry standard particularly for test equipment. Most reference generators are designed for lab use and therefore are bulky and unsuitable for portable use. Abracon now offers a pocket-sized portable solution. […]
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Why you should use high quality soldering tips
That a chain is only as strong as the weakest link should be common sense. Yet I see many people investing into extremely cheap soldering irons and then being surprised about their weak performance. Let’s compare tips of a budget soldering iron and a professional brand soldering iron. A while back I read an article […]
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C-Band DRO LNB Teardown
A low-noise block downconverter (LNB) is a key element in a satellite receiver system and is responsible for converting the relatively high frequency of the received signal into the more convenient L-Band. But how do they work and what do they look like on the inside? Let’s have a look! From a theoretical standpoint, a […]
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Direct Sequence Spread Spectrum Experiments
In our digital communication age heavy cryptology becomes more and more necessary everyday to protect our data from eavesdroppers. Direct Sequence Spread Spectrum is one way of covertly transporting data over radio waves. Without the knowledge of the correct code sequence it is nearly impossible for an attacker to decrypt the original message. 47 CFR […]
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