Tuesday, February 6, 2018

Power Amplifier is a Broadband GaN NMIC Power Amplifier

Power Amplifier is a broadband GaN MMIC power amplifier. It has 30 dB gain and 41 dBm output power over the 1.5 to 6.5 GHz band at 28 VDC  is in a ceramic package with a flange and straight RF and DC leads for drop-in assembly. MMIC is also available as a bare die. Because of high DC power dissipation, good heat sinking is required. This MMIC is matched to 50 Ohms.

Saturday, February 3, 2018

Definition: AC Alternating Current. A/G Air Ground

Definition:
AC             Alternating Current.
A/G           Air Ground.
AGC          Automatic Gain Control.  
AIC           Ampere Interrupting Capacity.
AM            Amplitude Modulation.
A               Ampere.
ANSI        American National Standards Institute.
ATC          Air Traffic Control
ATCT       Air Traffic Control Tower
ATO         Air Traffic Organization
BIT           Built-in Test
CBEMA   Computer and Business Equipment Manufacturer's Association
CD            Compact Disc
CEDEX    Courrierd Entreprise a Distribution Ex-Ceptionnelle  
CFR          Code of Federal Regulations
CPU          Central Processing unit
CVRTM   Contractor Verification Requirements Traceability Matrix
CW           Continuous Wave
dB             Decibel
dB(A)       A-Weighted Decibel
dBc           Decibels  Referenced To Carrier
dBm          Decibels Referenced To 1 Milliwatt
C-degree   Degree Celsius
F-degree   Degree Fahrenheit
DSB-AM Double Sideband Amplitude Modulation
DVD        Digital Video Disc
EEPRPM Electronically Erasable Programmable Read-Only Memory
EMC        Electromagnetic Compatibility
EIA          Electronic Industries Alliance
ESD         Electrostatic Discharge
ETR         Emergency Transceiver Radio
ETSI        European Telecommunications Standards Institute
FAA         Federal Aviation Administration
FAT         Factory Acceptance Test
FCC         Federal Communications Commission
FIFO        First In, First Out
FM           Frequency Modulation
ft              Foot
GB           Gigabyte
HF           Human Factors
HFDS      Human Factors Design Standard
Hz           Hertz
ICD         Interface Control Document
ICAD      International Civil Aviation Organization
ID           Identification
IEC         International Electrotechnical Commission
IEEE       Institute of Electrical and Electronics Engineers
ISO         International Organization For Standardization
kHz         Kilohertz
LED        Light Emitting Diode
LRU        Line Replaceable Unit
mA          Milliampere
MB          Megabyte   
MDT       Maintenance Date Terminal
MHz        Megahertz
ms           Millisecond
MTBF     Mean Time Between Failures
MTTR     Mean Time To Repair
N/A         Not Applicable
NAS        National Airspace System
NEMA    National Electrical Manufacturers Association
NEXCOM Next Generation Air/Ground Communications System
NFPA     National Fire Protection Association
NILA      National Telecommunicstions  and Information Administraton













Sunday, September 10, 2017

Past, Present And Future Of Atomic Timekeeping

1911 - First Atomic Beam (Dunoyer)
1921 - Deflection of Atomic Beam by Inhomogenous Magnetic Field (Stern)
1933 - Deflection of Light by Photon Absorption (Frisch)
1938 - Molecular Beam Magnetic Resonance Method for Measuring Nuclear Magnetic Moments (Rabi, Zacharias, Millman & Kusch)
1939 - Radio Frequency Spectroscopy (Kellogg, Rabi, Ramsey and Zacharias)
1940 - Atomic Hyperfine Structure, Field Independent Oscillations, Discussion Of Atomic Clocks (Rabi, Kusch & Millman
1949 - Method Of Separated Oscillatory Fields: Narrower Resonances, Higher Frequencies. No First Order Doppler (Ramsey)
1950 - Optical Pumping (Kastler)
1952 - Initial Work On Cs Clock (Kusch, Lyons, Sherwin)
1953 - Unsuccessful Atomic Fountain
1954 - Atomichron (Zacharias)
1954 - NH, Laser (Townes)
1955 - Atomic Cs Beam Frequency Standard (Essen & Parry)
1948 - 1961 - Microwave Spectroscopy (Townes), Optical Pumping (Hastler), Buffer Gases (Dicke), NH,3 Maser (Townes), Optically Pumped Rb Frequency Standards.
1959 - Ion Traps (Penning, Paul & Dehmelt) Initially Large Doppler Shifts and Widths
1960 - Lasers (Townes, Schawlow, Maiman...). Suppression of First Order Doppler by Two Photon Absorption Spectroscopy. Frequency Chains for calibration.
1960 - Improvements In All Frequency and Time Standards.
1962 - Hydrogen Maser (Kleppner, Ramsey...)
1968 - Cooling of Trapped Ions By The He (Dehmelt, Cutler,....)
1969 - Small, Integrated Cavity Rubidium Oscillator & Rb Isotope Mixture, Efratom Elektronik GmbH (Jechart, Huebner)
1975 - Electron Shelving With Many Trapped Ions As An Amplification Mechanism To Detect Weak Transitions By Monitoring Affected Resonance Fluorescence.
1975 - Laser Cooling (Wineland, Dehmelt, Hansch, Scawlow).
1980 - Laser Cooling Of Trapped Ions (Wineland, Bergquist, Drullinger, Itano, Dehmetlt, Toscheck,..)
1981 - Single Atomic Ion Trapping And Colling. Quantum Jumps And Electron Shelving With Single Ions (Dehmelt, Wineland..)
1985 - Slowing of Neutral Atoms (Philips. Metcalf, Letokhov, Hall, Weiman...)
1985 - Laser Trapping Of Atoms, Gradient Traps And Spontaneous Radiation Traps (...)
1988 - Sympathetic Cooling (Larson, Wineland,...)
1988 - Cooling Below Doppler And Recoil Limits. Polarization Gradient Cooling. Sisyphus Effect. Velocity Selective Coherent Trapping. 2.4u. (Philips, Cohen Tannoudjt, Dalibard, Chu, Metcalf...)
1989 - Successful Fountain Experiment (Chu,...)

Saturday, March 25, 2017

Wanted Vertex RSI LT-3600 Up/Down Converter

Looking for one or two Vertex RSI LT-3600 Up/Down Converter P/N:201667-1200001, Contact Arthur Aaron Senior buyer

Wanted Looking For Part On 3DH03155AB - 695-5647-022 Or 695-5647-023

Wanted We are looking for a part on the MDR8000 Controller Board 3DH03155AB 695-5647-022 or 695-5647-023 ELMC. Where the 695-5647-022/23. Contact Arthur Aaron Senior buyer
 

Tuesday, July 5, 2016

NASA


 F22 flying PCAP (protective combat air patrol) for a Shuttle launch.





 F-15E Strike Eagle at 26 thousand feet over the east coast. 





 Protective combat air patrol  F-15E Strike Eagle for the last launch of the Endeavor.




Friday, April 15, 2016

IEEE Foothill Co-Sponsored UC Riverside Highlander Micromouse Competition 2016

IEEE Foothill Section co-sponsored UC Riverside Highlander Micromouse Competition held on April 2-3, 2016 at UC Riverside Winston Chung Hall Room 233. Below is a write up of the event submitted by their Robotic Coordinators Andrew Nava and Emilio Barreiro.




Video Highlight Reel of the Competition:
https://www.youtube.com/watch?v=yEByI-_ratY

Preparation
The 2016 UCR Highlander Micromouse Competition was a success for both IEEE and the participating teams. To prepare for this event, IEEE UCR Board spent the weeks leading up to planning a timeline of tasks and cost estimations to maintain deadlines and budgets. As the day came closer, we repainted the maze, purchased snacks and beverages, created a schedule, coordinated parking passes for visiting teams, and organized for a videographer to film the event highlights. IEEE UCR board members repainted the base panels and maze walls. On Saturday morning, April 2nd, Andrew Nava, the Robotics Coordinator, and Emilio Barreiro, the upcoming Robotics Coordinator, set up the room with tables, chairs and the maze. Registration for the all-nighter began at 5pm Saturday night, when the All-Nighter began.
All-Nighter
The all-nighter portion of the event is meant for students to knock out any last minute hardware/software issues on their robots. We had a great turnout of about 20 students who were able to come and with the help of IEEE Foothill we were able to provide food, snacks, and beverages to everyone who attended. At midnight, to give students a small break we opened a room with a video game console and projector for students who were interested. Throughout the night, Emilio Barreiro and Andrew Nava were able to assist all teams with their robotics needs in Electrical Engineering and Computer Science.
Competition
On Sunday, April 3rd, registration began at 8am and by 9am, all teams had checked in and began calibrating their robots on the practice maze. We had a total of seven teams competing, all of whom put a lot of work and time into their robots for this competition. In attendance were five teams from UCR, one team from UCSD, and one team from CSULA. We presented prizes shortly after the last competitor ran their mouse in the maze. On top of this page is the group photo from the event and a link to the highlight video that our videographer made.
Prizes Awarded
1st Place: Green Ye (CSULA) $150
2nd Place: Team Twitch (UCSD) $125
3rd Place: Team Modest Mouse (UCR) $100
4th Place: Team Temp (UCR) $75
Best Beginners Mouse: Team FTW (UCR) $150
Special Thanks and Recognition to:
IEEE Foothill Section
Triad Magnetics
Pololu
UC Riverside BCOE
All Competitors and Volunteers