Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives Magazine Sponsor RF Cafe Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Alliance Test Equipment Centric RF Empower RF ISOTEC Reactel RF Connector Technology San Francisco Circuits Anritsu Amplifier Solutions Anatech Electronics Axiom Test Equipment Conduct RF Copper Mountain Technologies Exodus Advanced Communications Innovative Power Products KR Filters LadyBug Technologies Rigol TotalTemp Technologies Werbel Microwave Windfreak Technologies Wireless Telecom Group Withwave RF Cafe Software Resources Vintage Magazines RF Cafe Software WhoIs entry for RF Cafe.com Thank you for visiting RF Cafe!
LadyBug RF Power Sensors

KR Electronics (RF Filters) - RF Cafe

TotalTemp Technologies (Thermal Platforms) - 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

Windfreak Technologies SynthHD PRO - RF Cafe

Titanic Radio, Compliments of Marconi Wireless Telegraph Company

RF Cafe University"Factoids," "Kirt's Cogitations," and "Tech Topics Smorgasbord" are all manifestations of my ranting on various subjects relevant (usually) to the overall RF Cafe theme. All may be accessed on these pages:

 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 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37

In 2012, we were inundated with stories on the 100-year anniversary of the "unsinkable" RMS Titanic, on April 15, 1912. Even after a century of research and exploration, no definitive cause has been determined relating to how the ship's crew managed to hit a gigantic iceberg on a star-lit, glass-smooth sea. The prevailing theory seems to be that an optical illusion due to an atmospheric inversion caused the crew to misjudge the position of the iceberg. An article in the March 2012 Smithsonian/em> magazine lays out the scenario, complete with diagrams. The same edition has a story titled, "They Missed the Boat," discussing some of the famous people who were originally scheduled to make the voyage, but decided not to before it departed. Amongst the notables was none other than 1909 Nobel Prize in Physics honoree Guglielmo Marconi. Instead, he left for America on the Lusitania three days earlier. Interestingly, he also made the Atlantic passage on the Lusitania three years later on the trip immediately before a German U-Boat sunk it. Talk about a charmed life!

Titanic's Radio Room - RF Cafe

The only known photograph of Titanic's radio room.


Titanic's Radio System Diagram - RF Cafe

Typical Marconi marine 5-kW wireless transmitting set, of the type installed on the Titanic.

(IEEE Spectrum)

Marconi played a critical role in the Titanic drama without actually being aboard, since his company, Marconi Wireless Telegraph Company, Ltd, owned the radio equipment aboard the Titanic and also employed the two radio operators. The April 2012 edition of the ARRL's QST magazine has a couple articles that focus on the operators of both the Titanic and the Carpathia (the rescuing ship).

RMS Titanic's Voyage Route - RF CafeThe Titanic's radio was a state-of-the-art 5.0 kW set with an advanced synchronous, rotary spark discharger. Separate rooms were needed for the transmitter and the receiver because noise from the transmitter was so great that it would otherwise severely interfere with the receiver. Most ocean-crossing ships of the era had no radio communications at all, and those that did were typically transmitting at only 1.5 kW - not enough to span the entire ocean. According to research done by author Commander Richard Paton, USCGR (Ret), the radio was out of service for more than seven hours just a short while before disaster struck. Marconi's two operators, John "Jack" Phillips and Harold Bride, who both maintained and operated the equipment, worked tirelessly to get back on the air because the company lost money when messages were not being sent and received. The Titanic's call sign was MGY (the M stood for Marconi).

The novelty of wireless communication assured the Marconi Wireless Telegraph Company a steady flow of revenue as passengers, many very wealthy, were anxious to have the privilege of communication with friends and relatives while in the middle of the ocean. Fees were collected ahead of messaging. Once the radio was operational again, both men worked tirelessly to catch up with the backlog of messages to and from the Marconi station at Cape Race, Newfoundland. Ship-to-ship messaging was also common as weather conditions and navigation hazards - like icebergs - were relayed between vessels as a courtesy. The same type courtesy exists today between ships and airplanes.

A message was received from the SS Mesoba roughly two hours before the strike warning of a large ice field in Titanic's path. Under normal conditions, radio operators would dispatch ship-to-ship messages to and from the bridge for the ships' officers' benefit as they became available, but due to the intense workload, never reached the bridge. Operator Phillips is said to have admitted to placing the message under a paperweight for later delivery, but never got around to it. Following the jarring impact with the iceberg, once it was clear that the Titanic was in dire straits, operator Phillips keyed the message, "Come quick - we have struck an iceberg - its CQD SOS old man - position 41.46 N 50.14 W - MGY." Phillips died that fateful night a while after telling the story to Second Officer Charles Lightoller while they both clung to the same overturned lifeboat. Harold Bride survived.

I hate to be the one to throw cold water on (bad choice of cliché?) the generally agreed-upon conference of hero status on Titanic's two radio operators, but might it be that if it were not for the profit motive of sending and receiving as many messages as possible for paying passengers that the iceberg warning message would have been delivered to the captain and heeded in time to save the ship? I'm a big believer in Capitalism myself, but life-and-death safety issues always take precedence over making another buck in my book. Just a thought...



Posted December 30, 2020
(updated from original post on 3/15/2012)

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024


    Kirt Blattenberger,


RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

Copyright  1996 - 2026

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website: AirplanesAndRockets.com

My Daughter's Website: EquineKingdom

Werbel Microwave (power dividers, couplers)

Axiom Test Equipment - RF Cafe