TSP #188 – Teardown, Repair & Experiments with an Agilent E8267D 20GHz PSG Vector Signal Generator

April 25, 2021 No comments

In this episode Shahriar investigates a malfunctioning Agilent PSD Vector Signal Generator. These (expensive) instruments offer very good spectral purity as well as built-in vector signal generation which makes them ideal for testing and characterizing advances wireless systems. The instrument does not produce any output signal while also generating no error signals. The block diagram of the instrument is presented accompanied by detailed testing and teardown to finally locate and correct the problem.

Thank you AllTest for providing this instrument for repair! You may see various products and services offerings from AllTest here:

Alltest Instruments: https://alltest.net/
Provides: Refurbished benchtop test & measurement instrumentation, service, and calibration. Types of equipment include but are not limited to oscilloscopes, network analyzer, spectrum analyzers, signal generators, multimeters, etc.

Alltest Chambers: https://alltestchambers.com/
Provides: Refurbished environmental test chambers, service, and calibration. Types of equipment include but are not limited to hot, cold, shock, altitude, liquid, HALT/HASS, temperature forcing, etc.

Brerro Technical Consultants: https://brerro.tech/
Provides: Expert consultation creating low cost solutions related to R&D, engineering, manufacturing, QA/QC, and compliance. Solutions include but are not limited to EMI/EMC testing, SMT and PCB applications, MIL-461 compliance systems, MIL-810 compliance systems, DO-160 compliance systems, manufacturing equipment and systems.

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TSP #187 – Stump the Experts! Keysight Contest on 5G Measurement Challenges

April 15, 2021 No comments

In this episode Shahriar tries to stump the Keysight experts! Can we submit a question regarding 5G system testing to confound the Keysight engineers? There is also an additional puzzle at the end of the video for the viewers to discuss.

Contest Homepage: http://www.keysight.com/find/stumptheexperts

LinkedIn post: https://www.linkedin.com/posts/keysight-technologies_5g-keysight-keysight5gexpertcontest-activity-6775128141389164544-t29y

Teaser Video: https://www.youtube.com/watch?v=3qS9gNtoI78&ab_channel=KeysightCellular

Blog article: https://blogs.keysight.com/blogs/inds.entry.html/2021/03/26/join_the_stump_thee-6WMz.html

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TSP #186 – Tabor Electronics 4-Channel 12GHz RF Signal Generator Review, Teardown & Experiments

April 9, 2021 No comments

In this episode Shahriar reviews the Lucid Series synthesizers from Tabor Electronics. These instruments are offered in several attractive formfactors. Furthermore, the multi-channel instrument (4-Channels and up to 12GHz) provides independent but coherently locked channels. The synthesizers also offer excellent signal purity, harmonic response and phase noise.

You can find more information about the Lucid Series Signal Generators from Tabor Electronics here:
https://distribution.taborelec.com/signal-generators/

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TNP #4 – Keysight Turbo Encabulator Review & Teardown

March 30, 2021 No comments

In this episode Shahriar reviews the extraordinary new engineering from Keysight. Unfortunately, mere written words cannot do this instrument justice.

See the all the new Keysight Turbo Encabulator here:
https://youtu.be/fltOyddlnOE

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TSP #185 – ITECH IT9121 Digital Power Meter (600V, 20A) Review, Teardown and Experiments

March 15, 2021 No comments

In this episode Shahriar reviews the ITECH IT9121 Digital Power Meter. The IT9100 power meter series can provide up to 1000Vrms and 50Arms and measurement bandwidth of 100KHz. The instruments can measure voltage, current, power, frequency, harmonics and other parameters. The standard configuration includes USB, GPIB, RS232 and LAN communication interfaces and also interfaces for USB-based peripheral devices. The basic voltage and current accuracy is 0.1%.

https://www.itechate.com/en/product/power-meter/IT9100.html

This review is organized as follows:

00:00 – Introduction, interfaces, front & back panel
03:37 – IT-E185 AC Interface accessory overview
05:01 – Complete teardown, architecture analysis, mixed-signal design
15:46 – GUI overview, measurement capabilities, analysis types
18:03 – Included interface cables, DC accuracy and capability measurements
20:45 – AC measurements, PF, S, THD, Phase, Frequency measurements
26:45 – Characterization of an Anker USB-C 60W chargers and USB-C battery pack
33:13 – Characterization of an LED light bulb with external Triac dimmer circuit
36:52 – PC software capabilities and overview
38:02 – Concluding remarks

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