Search RFC: |                                  
Please support my efforts by ADVERTISING!
Serving a Pleasant Blend of Yesterday,
Today, and Tomorrow™

Vintage Magazines

Electronics World
Popular Electronics
Radio & TV News
QST | Pop Science
Popular Mechanics
Radio-Craft
Radio-Electronics
Short Wave Craft
Electronics | OFA
Saturday Eve Post

Formulas | Data

Electronics | RF
Mathematics
Mechanics
Physics


Calvin & Phineas

kmblatt83@aol.com

Archive | Sitemap

Resources

Articles | Radar
Cogitations
Magazines | AI
RF Museum
Software | Videos
Radio Service
Tech Notes

Entertainment

Crosswords
Humor | Podcasts
Quotes | Quizzes
Tech Comics

Parts | Services

1000s of Listings


About RF Cafe

Software: RF Cascade Workbook | RF Symbols for Office | RF Symbols & Stencils for Visio | Espresso Workbook
Please Support My Advertisers!
Transcat | Axiom Test Equipment - RF Cafe
Aegis Power | Centric RF | RFCT
Empower RF | Reactel | SF Circuits

Alliance Test | Isotec
Maury Microwave / Boonton SGX1000 Signal Generator - RF Cafe

Exodus Advanced Communications Best in Class RF Amplifier SSPAs

Anatech Electronics RF & Microwave Filters - RF Cafe
Amplifier Solutions Corporation (ASC) - RF Cafe

Innovative Power Products (IPP) Directional Couplers - RF Cafe

Innovative Power Products (IPP) 90 deg Hybrid Couplers - RF Cafe

Please Support RF Cafe by purchasing my ridiculously low-priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

RF Cascade Workbook - RF Cafe

Radar: Technical Principles
Videos for Engineers

minimum height spacer Radar: Technical Principles (Pips) - RF Cafe Videos for EngineersThe development of radar by the British and Americans during World War II was undoubtedly a key factor in preventing Hitler's forces from destroying and dominating the world. Once his ground forces had invaded western and southern Europe and spread toward the eastern seaboard, the main task remaining was to take England and Ireland. The English Channel prevented a relatively simple land invasion, so the Luftwaffe undertook an air campaign both in the form of massive bombing raids and the terrible V1 Buzz Bombs and V2 rockets developed by Werner von Braun's team. Scotsman Robert Watson Watt was commissioned to create a microwave "death ray" to shoot down the German aircraft and rockets, but his investigations showed that microwaves would be more effective employed in the form of radar to give advanced warning of approaching squadrons. That gave RAF pilots time to get airborne and go out to meet the enemy before it could reach British shores. Of course, Hitler then made bombing the radar installations a priority. Just as Admiral Kurita made a fatal strategic decision during the Battle of Leyte Gulf by turning his fleet around, Göring made a fatal decision to cease bombing of the radars and concentrate on British airfields. Both actions were based on bad assumptions about the opposition's status. There is footage I have never seen before of a German V2 rocket launch. But, I digress.

This series of videos was produced by the U.S. Army Signal Corps (CiC pronunciation "corpse") as part of the training program for radar technicians. I was a radar repairman in the USAF and do not recall seeing this series of films, but then my time was 1978-1982. The basics really haven't changed, other than the displays are no longer traces on an oscilloscope where the position of "pips" on the time base represent the distance and relative size of the target. The most advanced contemporary radar still uses a central timing unit to synchronize all time-related information, and has an antenna to "fling" RF energy into space, be reflected off of objects, and be processed by the receiver. The dictate to me and every other radar repairman in military history: "Whichever set you work on, your job, the repairman's job, is the same - to keep your set working and working right all the time."

Oh, if you have not yet watched the Reel 1, Part 3 video on radar indicators, you might be wondering what that thumbnail image has to do with a radar training film. Back in the day, especially in England, it was common to refer adoringly to someone as a "pip." Pip was also the term given to a blip on the radar screen, hence the symbolism. It was a mental bait-and-switch to get the troops' interest. You can bet there would never be such material in today's training videos. I won't comment further on the subject.

Radar Technical Principles

Reel 1 - Part 2 - Mechanics

Radar Technical Principles

Reel 2 - Part 2 - Mechanics

Radar Technical Principles

Reel 3 - Part 2 - Mechanics

Radar: Technical Principles

Reel 1 - Part 3 - Indicators

Radar: Technical Principles

Reel 2 - Part 3 - Indicators

Radar: Technical Principles

Reel 3 - Part 3 - Indicators

Radar: Technical Principles

Reel 4 - Part 3 - Indicators

Radar: Technical Principles

Reel 5 - Part 3 - Indicators

Videos for Engineers - RF CafeThis archive links to the many video and audio files that have been featured on RF Cafe.

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
10 | 11 | 12 | 13 | 14 | 15 |
16 | 17 | 18 |19 | 20 | 21 | 22
23 | 24 | 25 | 26 |

Posted February 8, 2012

Modular Components - RF Cafe