Tag Archive for RF

Tektronix AFG31000 2GS/s Arbitrary Function Generator Review, Teardown & Experiments

In this episode Shahriar reviews the new Tektronix AFG31000 Arbitrary Function Generator. The AFG31000 series with InstaView™ technology is the first high-performance AFG with built-in waveform generation applications, patented real-time wave monitoring, and a modern user interface. The instrument is capable of 2GS/s waveform generation up to 250MHz and 14-bits of vertical resolution. This review is organized as follows:

00:08 – Introductions
01:01 – Front panel, rear panel and instrument design
03:44 – Detailed teardown, analysis, architecture and components
17:30 – GUI overview and basic functions
20:25 – Broadband FM modulation experiments
23:55 – InstaView experiments with a non-linear impedance
35:38 – Equation editor, waveform builder and advance sequencing
51:21 – Concluding remarks

Teardown, Repair & Analysis of a Rohde & Schwarz FSEK 20Hz – 40GHz Spectrum Analyzer

In this episode Shahriar takes a look at a non-functional R&S FSEK 40GHz spectrum analyzer. The instrument’s LCD screen back light no longer works and the front glass is broken. Furthermore, no testing can be done until these problems are resolved. The CCFL tube is replaced with an LED counterpart and a new front panel glass is also installed.

After power on it becomes clear that the instrument has other defects. The internal PLL is unlocked. It is observed that the OCXO module is cold and potentially not working. Examination of the LO board shows a bad inductor on the DC filter side. After this problem the instrument operates correctly but only for signals below 7GHz. After further testing it is discovered that the YIG tuned filter on the pre-selector path is not tuning at all. Eventually the fault is traced to some operational amplifiers on the YIG driver board. The repaired instrument is verified for correct operation.

ERASynth Micro $199 12.5MHz – 6.4GHz Portable Synthesizer Teardown, Review & Experiments

In this episode Shahriar reviews the affordable ERASynth Micro 12.5MHz – 6.4GHz portable synthesizer with a built-in LCD screen. The USB powered instrument is fully open-source, Arduino compatible and can be operated in stand-alone mode. The system block diagram and operation of the instrument is presented.

The measurements show some of the strengths and limitations of the instrument in AM/FM modulation modes and general CW use cases.

International Microwave Symposium 2019 – Industry Trade Show Overview

In this episode Shahriar presents an overview of a small portion of the vendors present on the exhibition floor at the International Microwave Symposium 2019. The IEEE MTT International Microwave Symposium (IMS) is the premier annual international meeting for technologists involved in all aspects of microwave theory and practice. It consists of a full week of events, including technical paper presentations, workshops, and tutorials, as well as numerous social events and networking opportunities. The symposium also hosts a large commercial exhibition. Co-located with IMS are the IEEE RFIC, IMBioC and ARFTG conferences.

http://ims2019.org

00:08 – Introductions
01:29 – Trade-Show Floor
01:47 – Rohde & Schwarz (www.rohde-schwarz.com)
10:25 – Keysight Technologies (www.keysight.com)
16:38 – Junkosha Inc. (www.junkosha.co.jp/english)
19:57 – Amphenol (www.amphenol.com)
21:48 – GGB Industries Picoprobe (www.ggb.com)
23:23 – Anritsu (www.anritsu.com/en-US)
26:45 – Diamond Engineering Inc. (www.diamondeng.net)
29:19 – Microchip Technology (www.microchip.com)
33:07 – Macom (www.macom.com)
34:34 – OML Inc. (www.omlinc.com)
36:10 – Microsanj (www.microsanj.com)
38:29 – Piconics Inc. (www.piconics.com)
39:44 – Zhejiang Jiakang Electronics Co., Ltd. (en.jkelec.com) 40:59 – WithWave (with-wave.com)
42:51 – Suin Instruments (www.suindigital.com)
44:49 – TDK-Lamba (www.jp.lambda.tdk.com/en/index.html) 45:50 – Lake Shore Cryotronics Inc. (www.lakeshore.com)
47:07 – Focus Microwave Group (focus-microwaves.com)
48:40 – Sage Millimeter Inc. (www.sagemillimeter.com)
50:45 – Semiprobe (www.semiprobe.com)
52:36 – Ceyear Inc. (en.ceyear.com)

Teardown & Experiments with Agilent mm-Wave W-Band (75 – 110GHz) T/R Module & Controller

In this episode Shahriar does a deep dive into the operation and architecture of Agilent/HP mm-Wave Extension Modules and Controller. The Agilent 85015A and W85104A work in conjunction and as the front-end for a W-Band (75-110GHz) S-Parameter T/R set. Although the mainframe system (HP 8510 Network Analyzer) is not available, a close look at the block diagrams reveals that the controller can be driven via external synthesizers to provide LO and RF signals. The detailed explanation of the entire system is presented from the ground up.

The full teardown of the mm-wave controller and T/R module are also presented and by reverse engineering the GPIB commands, the T/R module is brought to life. Several experiments show the full functionality of the system including a high-resolution CW radar demonstration.

One Simple Wish Foundation:
https://www.onesimplewish.org/

  • Social Media

    twittergooglepluswordpressyoutuberedditrssemail
  • Administrator

  • Archives

This site is protected by Comment SPAM Wiper.