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To Main Blog: The Modular Bench Power Supply ++, The Essential DIY Build for Every EE Student and Old Timer alike...   Every good power supply depends on a good voltage reference, it provides the anchor to keep everything stable and performing well and accurately   Without a good voltage reference, your supply will drift over time, with temperature changes and if the supply voltage changes even a little, not to mention noise that can be introduced by outside sources   What I wi ...
How to build a low cost but large and very usable LAB Bench for your projects and test and measurement equipment   this total build was under 250$ including the shelving hardware, the cutting plans will included below once there drawn in a legible format   here is the video though to keep you going     And the Shelves   Cutting list 2 off 8 foot by 4 foot 3/4 plywood (Cut 2 * 6"*8' from one and 3 off 16"*8' on the other, table top = 3'*8') 1 off 8 foot by ...
An Intelligent garage door controller I have a plan.  With the TI CC11XL dev kit that accompanied the Keysight N9322C spectrum analyzer Road Test, I  would like to develop an intelligent garage door controller.  The video below lays down the broad strokes of the design concept. The probability of successfully completing this design project before the blogging challenge deadline is not great as there will simply not be enough time available in my days to get everything done.  ...
This blog post is part of a collection, click here for links to the entire set, and a review of the products. Introduction In a few earlier posts, frequency modulation (FM) experiments were conducted using a frequency synthesizer, and frequency shift keying using Texas Instrument’s CC11xL development kit. This post documents amplitude modulation (AM) experiments and uses the Agilent/Keysight N9322C spectrum analyzer (SA) for measurement and alignment.   Amplitude modulation and frequ ...
Cosmin and Shabaz are posting excellent blogs that demonstrate the capabilities and cool features of the Keysight N9322C basic spectrum analyzer and the TI CC11XL dev kit. See Cosmin use the TI CC11XL and the N9322C to demonstrate Doppler shift in this blog post and get a good overview of the N9322C and the CC11XL in this blog post.  Shabaz provides a great tutorial on using the N9322C tracking generator to evaluate antennas in this blog post and a very straightforward demonstration of FM d ...
Overview   In my previous part 1 and part 2 posts I showed how I started to work on this roadtest, how I setup an RF communication link on the Texas Instruments Value Line Development Kit CC11XLDK-868-915, and how I started to measure various characteristics of the transmitter using  the Agilent/Keysight N9322C spectrum analyzer.  In this post I will continue with the characterization of the transmitter and the communication link.     More Analysis of GFSK Demodulated ...
For every student of Electrical / Electronic Engineering and also the more mature Hobbyist, there is one thing you MUST build for your self at one time or another in your career, preferably earlier on   That's a Bench Power Supply and if you don't know how to start or are interested in having a second go at it then welcome to the show, it is going to be a fun and educational ride for all of us.   Blog #2 - Voltage References http://www.element14.com/community/groups/test-and-measuremen ...
Overview   In my previous post about the roadtest review of Agilent/Keysight N9322C Spectrum Analyzer and Texas Instruments Value Line Development Kit CC11XLDK-868-915 I showed how I got started with this work, how I setup an RF communication link, and how I started to measure various characteristics of the transmitter.  In this post I will continue with the characterization of the transmitter and the communication link by looking at phase noise, spurs in TX frequency spectrum, and Do ...
Overview   This is the second blog post in the series of fundamental concepts of electric circuits and signals with the Tek 1202B oscilloscope.  In this post I will show an intuitive and analytical view of capacitance and capacitors, then I will analyze charge storage mechanisms and I will compare in two experiments how capacitors charge from a constant voltage source through a resistor versus from a constant current.  Following that I will show how capacitors are used in RC low- ...
Introduction The Agilent/Keysight N9322C spectrum analyzer (SA) can be purchased with a built-in tracking generator option (option TG7), which means that it can generate signals as the analyzer sweeps measuring power across a frequency range. This means that you can provide stimulus to a circuit and view the output. It is great for checking out the frequency response of filters or amplifiers.   The SA also offers a reflection measurement option (option code RM7) which, together with the tr ...
A Short Overview   First I would like to express thanks to Keysight/Agilent and Texas Instruments for selecting me to review the N9322C spectrum analyzer and CC11XLDK-868-915 Value Line Development Kit.  I feel fortunate and honored to be one of the three people selected for this roadtest.  I would also like to thank Element14 for organizing this roadtest.   N9322C belongs to the product category of basic spectrum analyzers and covers frequencies from 9kHz up to 7GHz.  ...
This blog post is part of a collection, click here for links to the entire set, and a review of the products. Introduction I was curious to try out the Agilent/Keysight N9322C spectrum analyzer (SA) with low level signals, and this needed a bit of experimentation. For a start, my home-made frequency synthesizer only goes down to a certain level.   This post documents how to create and measure low level signals using the capabilities of the SA.   Signal Generation The SA has a built-in ...

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