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After making an initial post about my research plans for psychoacoustic masking and audio steganography using the Agilent 33622A, I left for a month long trip to Europe and Iceland.  I'm back now with plenty of interesting travel experiences and a lot of bills to pay.  I am also back to full time work and we are starting undertaking major house renovations - including the addition of a purpose built electronics lab space! I will be busy, but I'm moving forward on the psychoacoustic r ...
If you are a fan of the show you have seen Ben frequently  use his Agilent handheld oscilloscope to troubleshoot projects. He was curious what he could do with some of the other scopes out there so The Ben Heck show hit the road to the Madison Area Technical College electronics lab and gets his hands on the  scopes they have. Ben looks to solve three problems with help from the oscilloscopes, check it out below....     We will be giving away a Tektronix TBS1000B Digital ...
We don't know many people who are big fans of the standard Test and Measurement user interface, especially with Digital Multimeters (DMMs). Sure, there are some products out there that are taking advantage of tablets and cell phones, but they can hardly be considered high quality measurement equipment based on their specs. For instance the iDVM from Redfish probably has a great user interface, but is a 2% accuracy spec reasonable for a serious piece of measurement equipment? There is a disconnec ...
In the previous blog I explained the creation of complex RF digital waveforms on the 33622A generator. I thought that it would be nice to use these signals in a sort of real world scenario, and maybe push it a little bit further.   So, I devised a small experiment. 33622A will be the source of the signal, QAM64 modulated carrier at 49 MHz (and three others at frequencies below that), 5120 ksymbols/s symbol rate and channel bandwidth od 6,4 MHz. That signal is fed into a fiber optic node, s ...
     Hello everyone,        One of the uses the Agilent 33622A can have, is that of a signal source in an automated test system. Automated test systems are used on the production lines to test for defects, in the research stage for design validation (running a bunch of tests and checking if the result is within the expected limits), for characterization of a DUT and so on.        While you can connect to the instruments dire ...
DC measurements  Although the PA1000 is touted as a Single Phase Power Analyser I tried it out as a DC Power Analyser and it seems to work quite well. My tests also were a good excuse of using the Alligator Clips rather than the Breakout Box.   In Normal mode, the instantaneous voltage and current are displayed. An integration graph can be constructed using PWRVIEW using its data logging function. Two samples per second are captured data logging mode and from this a graph can be ch ...
After creating baseband IQ data, the next step in my test setup was to take these signals into a IQ modulator, which was supposed to produce RF modulated QAM signal in band between 20-65 MHz, in compliance with DOCSIS 2.0/3.0 standard, used in cable TV systems return path (upstream) for two way communication link and Internet access.   However, Murphy got me and I discovered that the modulator does not work anymore. What to do now? I immediately thought of more than adequate 120 MHz of an ...

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