More and more computers (especially laptops) aren’t equipped with serial and / or parallel ports anymore. Therefore, more and more programming interfaces utilize USB instead. However, some people are extremely attached to their older serial / parallel programmers and often oversee how a USB based device can simplify their life a lot. Atmels’s AVRISP mkII […]
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Exclusive OR (XOR) gate based phase detector
A phase detector generates a voltage proportional to the difference in phase between two signals. They are used in Phase-Locked-Loop (PLL) designs and PM / FM demodulator circuits. But how do they work? I promised in a previous blog article titled ‘No Tune NE602 / NE612 FM Demodulator’ that I would explain how a quadrature […]
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Amateur Radio Services
Thanks to my top-notch test equipment and years of circuit design experience in the RF sector, I am able to offer superior service to the amateur radio community. This list is not comprehensive and only includes the most commonly requested services. All prices include pick-up and drop-off within 10 miles of Little Rock, AR. Shipping […]
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