In telecommunication, the term multiplex baseband has the following meanings: 1. * In frequency-division multiplexing, the frequency band occupied by the aggregate of the signals in the line interconnecting the multiplexing and radio or line equipment. 2. * In frequency division multiplexed carrier systems, at the input to any stage of frequency translation, the frequency band occupied. For example, the output of a group multiplexer consists of a band of frequencies from 60 kHz to 108 kHz. This is the group-level baseband that results from combining 12 voice-frequency input channels, having a bandwidth of 4 kHz each, including guard bands. In turn, 5 groups are multiplexed into a super group having a baseband of 312 kHz to 552 kHz. This baseband, however, does not represent a group-level baseband. Ten super groups are in turn multiplexed into one master group, the output of which is a baseband that may be used to modulate a microwave-frequency carrier. This article incorporates public domain material from Federal Standard 1037C. General Services Administration. (in support of MIL-STD-188). * v * t * e (Wikipedia).
Multimeter Review / DMM Review / buyers guide / tutorial
A list of my multimeters can be purchased here: http://astore.amazon.com/m0711-20?_encoding=UTF8&node=5 In this video I do a review of several digital multimeters. I compare features and functionality. I explain safety features, number of digits, display count, accuracy and resolution. Th
From playlist Multimeter reviews, buyers guide and comparisons.
An excellent song which I could not find on Youtube.
From playlist the absolute best of stereolab
Electronic measurement equipment and multimeters - Part 1
In this video series I show different measurement equipment (multimeters, etc) and why / how I use them. In later videos I'll explore different features and highlight pro's and con's. A list of my multimeters can be purchased here: http://astore.amazon.com/m0711-20?_encoding=UTF8&node=
From playlist Electronic Measurement Equipment
From playlist the absolute best of stereolab
Dynamic Random Access Memory (DRAM). Part 4: Multiplexers and Demultiplexers
This is the fourth in a series of computer science videos is about the fundamental principles of Dynamic Random Access Memory, DRAM, and the essential concepts of DRAM operation. This video covers multiplexers and demultiplexers. It describes what these electronic circuits do and some of
From playlist Random Access Memory
stereolab - puncture in the radax permutation
check this out
From playlist the absolute best of stereolab
22C3: Towards the first Free Software GSM Phone
Speaker: Harald Welte Reverse Engineering the Motorola EZX (A768,A780,E680) series of Linux-based GSM phones This presentation describes the progress of hacking and extending the Motorola series of Linux based Smartphones, with the ultimate goal to replace all proprietary applications wi
From playlist 22C3: Private Investigations
Spatial Multiplexing and Hybrid Beamforming
Learn how modeling and simulation can help improve channel capacity and lower system development costs using spatial multiplexing and hybrid beamforming for 5G wireless communications. - Watch a webinar to learn more: http://bit.ly/2REcKPD Get a free product Trial: https://goo.gl/ZHFb5u
From playlist Hybrid beamforming and MIMO designs for 5G, LTE, and WLAN
DeepSec 2010: OsmocomBB: A tool for GSM protocol level security analysis of GSM networks
Thanks to the DeepSec organisation for making these videos available and let me share the videos on YouTube. Speaker: Harald Welte, hmw-consulting The OsmocomBB project is a Free Software implementation of the GSM protocol stack running on a mobile phone. For decades, the cellular indust
From playlist DeepSec 2010
28C3: Reverse-engineering a Qualcomm baseband (en)
For more information visit: http://bit.ly/28C3_information To download the video visit: http://bit.ly/28C3_videos Playlist 28C3: http://bit.ly/28C3_playlist Speaker: Guillaume Delugre Despite their wide presence in our lives, baseband chips are still nowadays poorly known and unde
From playlist 28C3: Behind Enemy Lines
Amazing science experiment-Demonstrating beat frequency
A beat is an interference pattern between two sounds of slightly different in frequencies You can download this app or a similar app on two devices and TRY it at home Enjoy!!!
From playlist Beats
Amazing science experiment-Demonstrating beat frequency
A beat is an interference pattern between two sounds of slightly different in frequencies You can download this app or a similar app on two devices and TRY it at home Enjoy!!!
From playlist Beats
Lec 10 | MIT 6.450 Principles of Digital Communications I, Fall 2006
Lecture 10: Degrees of freedom, orthonormal expansions, and aliasing View the complete course at: http://ocw.mit.edu/6-450F06 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 6.450 Principles of Digital Communications, I Fall 2006
GRCon19 - RF System Synchronization - LO's by Dan Baker
RF System Synchronization - LO's by Dan Baker, Brian Avenell Multi-channel applications including MIMO, phased array RADAR, and direction finding require channel-to-channel phase and time synchronization. Phase synchronization implies having deterministic relative phase between all of the
From playlist GRCon 2019
16. More on modulation/demodulation
MIT 6.02 Introduction to EECS II: Digital Communication Systems, Fall 2012 View the complete course: http://ocw.mit.edu/6-02F12 Instructor: George Verghese This lecture starts with applying FFT for a finite duration and the difference between DTFT and DTFS. The remainder of the lecture co
From playlist MIT 6.02 Introduction to EECS II: Digital Communication Systems, Fall 2012
Speakers: MuscleNerd, pytey, planetbeing Apple's iPhone has made a tremendous impact on the smartphone market and the public consciousness, but it has also highlighted their desire to carefully control the device with draconian restrictions. These restrictions prevent users from choosing
From playlist 25C3: Nothing to hide
30C3: Baseband Exploitation in 2013 (EN)
For more information and to download the video visit: http://bit.ly/30C3_info Playlist 30C3: http://bit.ly/30c3_pl Speakers: RPW | esizkur Hexagon challenges Exploitation of baseband vulnerabilities has become significantly harder on average. With Qualcomm having grabbed 97% of the mar
From playlist 30C3
The Computer Chronicles - Local Area Networks (1984)
An early look at local area networks examines various types of networks as well as their potential uses and drawbacks. Special thanks to archive.org for hosting these episodes. Downloads of all these episodes and more can be found at: http://archive.org/details/computerchronicles
From playlist The Computer Chronicles 1984 Episodes