Amateur Radio Gallery: Tech Junk

2011 ARRL Field Day: Richmond, Virginia

Some pictures from the 2011 ARRL Field Day in Richmond, Virginia.

Gallery: Rail transport

Norfolk Southern TS-32 Timber & Surfacing Gang

Gallery: Rail transport

Photos: Buckingham Branch Railroad

Gallery: AT&T Long Lines Video

Tower in Cle Elum, Washington – November 2010

Dinwiddie, Virginia Gallery: Dinwiddie County, Virginia

Dewitt Fire Lookout

A retired fire lookout (observation) tower in Dewitt, Virginia.

Coordinates: 37.042014, -77.639823

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The history of fire lookout towers predates the United States Forest Service (which was founded in 1905). Many townships, private lumber companies, and State Foresty organizations operated fire lookout towers on their own accord.

In 1933, during the Great Depression, President Franklin Delano Roosevelt formed the “Civilian Conservation Corps” consisting of young men and veterans of World War One. It was during this time that the CCC set about building fire lookout towers, and access roads to those towers. The U.S. Forest Service took great advantage of the CCC workforce and initiated a massive program of construction projects, including fire lookout towers. In California alone, some 250 lookout towers and cabs were built by CCC workers between 1933 and 1942.

The golden age of fire lookout towers was from 1930 through 1950. During World War II, the Aircraft Warning Service was established, operating in 1942 and 1943. Fire lookouts were assigned additional duty as Enemy Aircraft Spotters, especially on the West Coast of the United States.

From the 1960’s through the 1990’s the towers took a back seat to new technology, aircraft, and improvements in radios. The promise of space satellite fire detection and modern cell phones tried to compete with the remaining fire lookout towers but in several environments, the technology failed.

Telecommunications Network

Lucent technologies – Bell Labs Innovations

Lucent technologies – Bell Labs Innovations

Alexander Graham Bell

Thomas Watson

Teddy Vail

George Campbell’s wave filter

Calling ship to shore

Frank Jewitt

Harold Black

Negative feedback


Fax machines

More, more, more

Hi Fi, talkies

Movies, sound

Laying copper by the pound

Systems engineering

Quality control

Karl Demke

Herbert Ives

Davisson wins Nobel Prize

First speech synthesis

Beethoven in stereo

Bell Labs Innovations

Communications for the next generation

Bell Labs Innovations

Our contribution to the revolution

Ollie Buckley

Mobile phones


John Pierce

GI Loans

George David


Voice technography

Claude Shannon


Richard Hamming

William Fan

Crackerjack transistor team

Bardeen, Brattain, Shockley

Transatlantic cable

A transistorized computer made

Non-blocking networks

Macro coding scheme

Oxide masking

Solar cells

Transistors win the Nobel

Art [Schawlow] and Charles [Townes] what a team

They invent the laser beam

Bell Labs Innovations

Communications for the next generation

Bell Labs Innovations

Our contribution to the revolution

Mervin Kelly


Foil electret microphone


Telstar I

Digital transmission

Long distance dialing

First ever paging


Ion implantation



Magnetic bubble memory

Penzias and Wilson

Hear the big bang noise

Automated switchboards

Ever moving forward

Jim Fisk

1E switch

That’s our attitude, do it, boys!

John Tukey

Carbon dating

Ken and Den built UNIX

Bill Baker

Quantum wells


C language


Fiber optics will endure

Electron beam lithography

Anderson wins Nobel 3

Linc Hawkins

Amos Joel

Tom McChesney

Alfred Cho

Packet data



Transmitting mobile microwaves

Solitons without their phase

Transistors getting so small

You can’t even see them

Bell Labs Innovations

Communications for the next generation

Bell Labs Innovations

Our contribution to the revolution.

Echo canceller


All on one chip if you please

Penzias and Wilson win the Nobel Prize

Bell Labs gets a new boss

By the name of Ian Ross

Lightwave goes long distance

Cellular gets digitized

S language

C++ – reuse code without a fuss

Femtosecond pulses

Deep UV lithography

Software windows on our screen

Gigabit transmission seen

Tunable lasers

Programming that’s sharp as razors

Bell Labs Innovations

Communications for the next generation

Bell Labs Innovations

Our contribution to the revolution

Megabits on a chip

First electro-optic switch

Atom-trapping micro cells


Transatlantic lightwave cable

Bell Labs led by John Mayo

Neural networks



RBM builds amplifier

Data nets without the wire

Operating Systems

Software methodology

Optical cross-connect

Jin Leong is President

Bell Labs spins out technologies

See the mighty SCALPEL

C2 waves Nobel


Atom glide

X -ray Microprobe

Imaging buffer lobe

Circuits on plastic

Lasers that are bow tied

Internet telephony

Microphones the size of fleas

St’rmer, Loughlin, Tsui win a Nobel prize

Free space optic benefits

? router softswitch

Netravali needs the help

Lucent’s start is on the rise.

Bell Labs innovations

Make communication for the next generation

Bell Labs innovations

Our contribution to the revolution

Gallery: AT&T Long Lines

Cherry Hill Tower

This is an AT&T microwave radio relay tower located in Dewitt, Virginia. It connected Richmond to Rocky Mount and was named the “Dewitt” tower. The next tower north of Dewitt was in Matoaca, VA and the next tower south of Dewitt was in Margaretsville, NC.

Coordinates: 36-56-39.9N 077-37-12.7W
FCC ASR Registration Number: 1024227
Height: 344 feet above ground
Owner: American Towers, Inc.

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Gallery: Rail transport

RF&P 2379

Richmond Fredericksburg & Potomac car down in Wilmington, NC.