List of experimental television stations
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This page lists all of the experimental television stations before 1946. After 1946, the television frequencies were opened up to commercialization, and regular broadcasts began.
[edit] Television stations, as of 1928
Television stations, as of 1928 |
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Television Call-sign (Original) |
Television Call-sign (Current) |
City or location | Owner | Transmitter height (meters) | Television frequency | Television channel (current) | On air | Off air | Disk holes or lines | Frames per second | Original broadcast system | Current broadcast system | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
WRNY | None | New York City | WRNY-AM | 326 meters | 919 KHz | None | August 13, 1928 | 1929 | 48 | 10 | Mechanical television | None | |
2XAL | None | New York City | WRNY-AM | (with WRNY), 30.91 | 9700 KHz | None | August 13, 1928 | 1929 | 48 | 7.5 | Mechanical television | None | |
3XK | None | Washington, DC | Charles Jenkins Laboratories | 46.7 meters | 1605 KHz | None | July 2, 1928 | 1932 (1934?) | 48 | Unknown | Mechanical television | None | |
WGY | WRGB-TV | Schenectady, NY | General Electric | 380 meters | 790 KHz | Channel 6 (VHF) | Unknown | Unknown | 48 | Unknown | Mechanical television | NTSC-M | |
WOR | WWOR-TV | Newark, NJ | Bamberger Broadcasting (from WOR-AM) | 405 meters | 740 KHz | Channel 9 (VHF) | Unknown | Unknown | Unknown | Unknown | Mechanical television | NTSC-M | |
KDKA | KDKA-TV | Pittsburgh, PA | Westinghouse Electric Company | 62.5 meters | 4798 KHz | Unknown | Unknown | Unknown | Unknown | Unknown | Mechanical television | NTSC-M | |
1XAY | None | Lexington, MA | WLEX-AM | 51-62 meters | 1900 to 4700 KHz | Unknown | Unknown | Unknown | Unknown | Unknown | Mechanical television | None | |
4XA | None | Memphis, TN | WSM-AM | 120-125 meters | 2500-2100 KHz | Unknown | Unknown | Unknown | Unknown | Unknown | Mechanical television | None | |
9XAA (short-wave station of WCFL, officially W9XAA) |
None | Chicago, IL | WCFL-AM/Chicago Federation of Labor | 62 meters | 4800 KHz | Unknown | Unknown | Unknown | Unknown | Unknown | Mechanical television | None | |
Television stations, as of December, 1928 |
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Television Call-sign (Original) |
Television Call-sign (Current) |
City or location | Owner | Transmitter height (meters) | Television frequency | Television channel (current) | On air | Off air | Disk holes or lines | Frames per second | Original broadcast system | Current broadcast system | |
WGY | WRGB-TV | Schenectady, NY | General Electric | 380 meters | 379.5 MHz | Channel 6 (VHF) | 1928 | Still On Air | 24 | 21 | Mechanical Television | NTSC-M | |
2XAF (Upgrade of WGY) | WRGB-TV | Schenectady, NY | General Electric | 380 meters | 31.4MHz | Channel 6 (VHF) | 1928 | Still On Air | 24 | 21 | Mechanical Television | NTSC-M | |
2XAD (upgrade of W2XAF above) | WRGB-TV | Schenectady, NY | General Electric | Channel 6 (VHF) | 21.96 MHz | Channel 6 (VHF) | 1928 | Still On Air | 24 | 21 | Mechanical Television | NTSC-M | |
WRNY | None | New York City | WRNY-AM | 326 meters | 919 KHz | None | August 13, 1928 | 1929 | 36 | 10 | Mechanical television | None | |
2XAL | None | New York City | WRNY-AM | (with WRNY), 30.91 | 9700 KHz | None | August 13, 1928 | 1929 | 48 | 7.5 | Mechanical television | None | |
3XK | None | Washington, DC | Charles Jenkins Laboratories | Unknown | 46.72 MHz | None | July 2, 1928 | 1932 (1934?) | 48 | 15 | Mechanical television | None | |
WCFL | None | Chicago, IL | Chicago Federation of Labor | Unknown | 61.5 MHz | Unknown | Unknown | Unknown | 45 | 15 | Mechanical television | None | |
WKBI | None | Chicago, IL | Unknown | ? | 215.7 MHz | ? | ? | ? | 48 | 15 | Mechanical television | None | |
WIBO | None | Chiago, IL | ? | ? | 305.9 MHz | ? | ? | ? | 45 | 15 | Mechanical television | None | |
KGFJ | None | Los Angeles | ? | ? | 212.6 MHz | ? | ? | ? | 48 | -- | Mechanical television | None | |
WLBX | None | Lexington, MA | ? | ? | 62.5 MHz | ? | ? | ? | 48 | -- | Mechanical television | None |
[edit] Television stations, from 1928 to 1939
Television stations, from 1928 to 1939 |
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Television Call-sign (Original) |
Television Call-sign (Current) |
City or location | Owner | Television frequency | Television channel (current) | On air | Off air | Disk holes or lines | Frames per second | Original broadcast system | Current broadcast system |
---|---|---|---|---|---|---|---|---|---|---|---|
KS2XBS (First pay-TV service, "PhoneVision") |
None | Chicago, IL | Zenith | 2.1-2.2 mHz, later Channel 2 | Channel 2 | 1939, 1951 | 1953? | ? | ? | NTSC-M | NTSC-M |
W1WX (later became W1XAV) | None | Boston, Massachusetts | SW and Television (Hollis Baird) | 2120 kHz | None | April 1929 (became W1XAV in December 1929) | 1931 | 48 (and later, 60 lines) | 15 | Mechanical Television | None |
W1XAV | None | Boston, MA | SW and Television (Hollis Baird) | 2.1-2.2 mHz | None | 1930 | 1931 | 48 | 15 | Mechanical television | None |
W1XAV | None | Boston, MA | Unkown | 2.1-2.2 mHz | SW and Television (Hollis Baird) | 1931 | 1934 | 60 | 20 | Mechanical television | None |
W1XAY | None | Lexington, MA | Boston Post, WLEX | 2.0-2.1 mHz | None | 1928 | 1930 | 48 | 18 | Mechanical Television | None |
W2XB/WGY/W2XAF/W2XAD | WRGB | Schenectady, NY | General Electric | 2.1-2.2 mHz | VHF 6 | 1928 | ? | 48 | 20 | Mechanical television | NTSC-M |
W2XCR | None | New York, NY | Charles Jenkins Laboratories | 2.75-2.85 mHz | None | 1929 | 1931 | 48 | 15 | Mechanical Television | None |
W2XCR | None | New York, NY | Charles Jenkins Laboratories | 2.75-2.85 mHz | None | 1931 | 1933 | 60 | 20 | Mechanical Television | None |
W2XBS | WNBC-TV | New York, NY | RCA | 2.0-2.1 mHz | Channel 4 (VHF) | 1928 | 1929 | 60? | 20? | Mechanical television | NTSC-M |
W2XBS | WNBC-TV | New York, NY | RCA | 2.75-2.85 mHz | Channel 4 (VHF) | 1928 | 1929 | 60 | 20 FPS | Mechanical television | NTSC-M |
W2XAB | WCBS-TV | New York, NY | CBS | 2.1-2.2 mHz | Channel 2 | 1931 | 1933 | 60 | 20 | Mechanical television | NTSC-M |
WRNY | None | New York, NY | Unknown | 1010 kHz | None | 1928 | 1929 | 36 | ? | Mechanical Television | None |
WRNY | None | New York, NY | Unknown | 1010 kHz | None | 1928 | ? | 48 | 10 | Mechanical television | None |
W2XR | None | Long Island City, NY | Hogan's Radio Pictures | 2.85-2.95 mHz | None | 1929 | 1934 | 60 | 20 | Mechanical television | None |
W3XK | None | Wheaton, MD (Moved to Silver Spring, MD?) | Charles Jenkins Laboratories | 6420 kHz (6.42 MHz) | None | 1928 | 1931 | 48 | 15 | Mechanical television | None |
W3XK | None | Washington, DC | Charles Jenkins Laboratories | 2.0-2.1 mHz | None | 1931 | 1934 | 60 | 20 | Mechanical Television | None |
W9XX, later became W5XA | None | Shreveport, LA | Rev. Lannie W. Stewart | 1604 kHz | None | 1929 | 1934 | 45 | 15 | Mechanical Television | None |
W5XA | None | Shreveport, LA | Paul L. Carriger | 1594 kHz (video on the 160-meter amature band) | None | 1932 | 1934 | 45 | 15 | Mechanical television | None |
W6XAH | None | Bakersfield, California | Pioneer Mercantile Company | 2000-2100 kHz, also simulcast on 1550 kHz in 1932 | None | January 6, 1932 | 1935 | 96 | 20 | Mechanical television | None |
Television stations, from 1928 to 1939 |
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Television Call-sign (Original) |
Television Call-sign (Current) |
City or location | Owner | Television frequency | Television channel (current) | On air | Off air | Disk holes or lines | Frames per second | Original broadcast system | Current broadcast system |
KGFJ | None | Los Angeles, CA | Unknown | ? | ? | 1928 | ? | 48 | ? | Mechanical television | None |
W3XAD | None | Camden, New Jersey | RCA | 124 MHz to 130 MHz | Channel 5 | July 1930 | Became W3XEP | 525 | 30 | Unknown | None |
W6XS | None | Los Angeles, CA | Don Lee Broadcasing | 2.1-2.2 mHz | ? | 1931 | 1935 | 80 | 20 | Mechanical Television | None |
W6XAO | KCBS-TV | Los Angeles, CA | Don Lee Broadcasing | 44.5 MHz (44-50 MHz, Channel 1) | Channel 2 | December 23, 1931 | 1936 | 80 | 20 | Mechanical Television | NTSC-M |
W7XAO | None | Portland, OR | Wilbur Jerman | 2.75-2.85 mHz | ? | 1929 | ? | Unknown | Unknown | Mechanical Television | None |
W9XAA, WCFL | None | Chicago, IL | Chicago Federation of Labor | 2.0-2.1 mHz | ? | 1928 | ? | 45 | 15 | Mechanical Television | None |
WIBO | None | Chicago, IL | ? | ? | ? | 1928 | ? | 45 | 15 | Mechanical Television | None |
W9XAK | ? | Manhattan, KS | Kansas State College | 2.1-2.2 mHz | ? | 1932 | 1939 | 60 | 20 | Mechanical Television | None? |
W9XAL | Unknown | Kansas City, MO | First National Television | 2.1-2.2 mHz | ? | 1933 | 1935 | 45 | 15 | Mechanical Television | None? |
W9XAO | None | Chicago, IL | Western Television (Sanabria) | 2.0-2.1 mHz | ? | 1930 | 1933 | 45 | 15 | Mechanical Television | None? |
W9XAP | ? | Chicago, IL | Chicago Daily News | 2.1-2.2 mHz | ? | 1930 | 1933 | 45 | 15 | Mechanical Television | None? |
W9XAT | Unknown | Minneapolis, MN | George Young, radio station WDGY | 42-50 mHz, 60-86 mHz (Channel 1) | ? | 1933 | 1938 | 125 | ? | Mechanical Television | None? |
W9XD | WTMJ-TV | Milwaukee, WI | Milwaukee Journal | ? | ? | 1931 (became W9XAZ in 1934) | 1938 | 45 | 15 | Mechanical Television | Now NTSC-M |
W9XG | ? | Lafayette, IN | Purdue University | 2.75-2.85 mHz | ? | 1931 | 1939 | 60 | 24 | Mechanical Television | ? |
W9XK/W9SUI "WSUI", W9XAZ | ? | Iowa City, IA | State University of Iowa | 2.0-2.1 mHz | ? | 1933 | 1939 | 45 | 15 | Mechanical Television | ? |
W9XUI | ? | Iowa City, IA | State University of Iowa | 2.0-2.1 mHz, later Channel 1, then Channel 2 |
? | 1933 | 1941 | 441 | 30 | Mechanical Television | ? |
W2XJT | None | Jamaica, New York | Jamaica Radio Television Company | Channel 3, then Channel 13 | None | 1940, moved to Ch. 13 in 1945 | Unknown | ? | ? | Mechanical Television | None |
VE9EC (also given as VE9AK) | CBFT-TV | Montreal, Quebec | Canadian Television, Limited (built by Peck Television Corp.) | 41 mHz | VHF Channel 6 | 1931-1935, 1952-Present | 1935-1952 | 60-150 | Unknown | Mechanical television | NTSC-M |
VE9AK | CBLT-TV | Toronto, Ontario | Rogers Communications | 42 mHz | VHF Channel 5 | 1938, 1952-Present | 1938-1952 | Unknown | Unknown | Mechanical television | NTSC-M |
Television stations, from 1928 to 1939 |
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Television Call-sign (Original) |
Television Call-sign (Current) |
City or location | Owner | Television frequency | Television channel (current) | On air | Off air | Disk holes or lines | Frames per second | Original broadcast system | Current broadcast system |
Baird Television Ltd. via BBC transmitter 2LO | Unknown | London, England | Baird Television Ltd. | Unknown | ? | September 30, 1929 | June 1932 | 30 | 25 | Mechanical television | PAL/DVB-T? |
Unknown (Possibly 2LO, as above?) | BBC One | London, England | Baird Television Ltd. | ? | ? | August 22, 1932 | September 11, 1935 | 30 | 25 | Mechanical television | PAL |
Fernsehsender Paul Nipkow | Unknown | Berlin, Germany | Reichsrundfunkgesellschaft | ? | ? | 1935 (tests started in 1929) | 1944 | 180/441 beginning in 1937 | 25 | Electronic television | PAL? |
[edit] Television stations, as of 1941
Television stations, as of 1941 |
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Television Call-sign (Original) |
Television Call-sign (Current) |
City or location | Owner | Television frequency | Television channel (current) | On air | Off air | Disk holes or lines | Frames per second | Original broadcast system | Current broadcast system | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
W1XG | None | Boston, Massachusetts | General Television | ? | Channel 1 | Unknown Channel | ? | ? | Unknown | Mechanical television | None | ||
W2XVT (Becomes W2XWV in 1944) | WNYW | Passaic, New Jersey | DuMont | Channel 4 | Channel 5 | 1938 | Still On Air | 525 | 30 | Mechanical Television | NTSC-M | ||
W2XBS | WNBC-TV | New York, NY | RCA, NBC | Channel 1 | Channel 4 | 1932 | Still On Air | 525 | 30 | Mechanical Television | NTSC-M | ||
W2XAB | WCBS-TV | New York, NY | CBS | Channel 2 | Channel 2 | 1931 | Still On Air | 525 | 30 | Mechanical Television | NTSC-M | ||
W2XWV | WNYW-TV | New York, NY | DuMont | Channel 4 | Channel 5 | 1938 | Still On Air | 525 | 30 | Mechanical Television | NTSC-M | ||
W2XB | WRGB | Schenectady, NY | General Electric | Channel 3 | Channel 6 | 1939 | Still On Air | 525 | 30 | Mechanical Television | NTSC-M | ||
W3XWT | WTTG | Washington, DC | DuMont | Channel 1 | Channel 5 | 1941 | Still On Air | 525 | 30 | Mechanical Television | NTSC-M | ||
W3XNB | WRC-TV | Washington, DC | NBC | Channel 2 | Channel 4 | 1939 | Still On Air | 525 | 30 | Mechanical Television | NTSC-M | ||
W3XE | KYW-TV | Philadelphia, PA | Philco | Channel 3 | Channel 3 | 1932 | Still On Air | 525 | 30 | Mechanical Television | NTSC-M | ||
W3XEP | None | Camden, NJ | RCA | 42 MHZ-56 MHz and 50-86 MHz | None | 1931 | 1941? | 525 | 30 | Mechanical television | None | ||
W3XPF (Portable unit: W10XX) | None? | Philadelphia, PA | Farnsworth | Channel 3 | Unknown | 1937 | Unknown | 525 | 30 | Mechanical Television | Unknown | ||
W3XPP | Cancelled Permit, Now WCAU | Philadelphia, PA | NBC | Channel 7 | Channel 10 | 1939 | Unknown | None | None | Mechanical Television | NTSC-M | ||
W6XAO | KCBS | Los Angeles, CA | Don Lee Broadcasting | Channel 1 | Channel 2 | 1936 | Still On Air | 441, changed to 525 in late 1941 | 30 | Mechanical Television | NTSC-M | ||
W6XYZ | KTLA | Los Angeles, CA | Television Productions | Channel 4 | Channel 5 | 1942 | Still On Air | 525 | 30 | Mechanical Television | NTSC-M | ||
W6XDL | None | San Francisco, CA | Don Lee Broadcasting | Channel 1 | None | 1941 | Off-Air | 525 | 30 | Mechanical Television | None | ||
W8XCT | WLWT-TV | Cincinnati, OH | Crosley | Channel 1 | Channel 5 | 1939 | Still On Air | 525 | 30 | Mechanical Television | NTSC-M | ||
W9XV/W9XZV | Became KS2XBS | Chicago, IL | Zenith | Channel 1, then CH 2 |
None | 1939-1941, 1951-1953 as KS2XBS | Off-Air | 441, later 525 | 30 | Mechanical Television | None | ||
W9XBK | WBBM-TV | Chicago, IL | Balaban and Katz | Channel 2 | Channel 2 | 1940 | Still On Air | 525 | 30 | Mechanical Television | NTSC-M | ||
W9XJM (Officially W9XD/W9XAZ?) | WTMJ-TV | Milwaukee, WI | Milwaukee Journal | Channel 3 | Channel 4 | 1931-1933 (As W9XD, as W9XAZ 1934-1938) | Still On Air | 525 | 30 | Mechanical Television | NTSC-M |
[edit] Television stations, from Jan. 3, 1945 to 1955
Television stations, from Jan. 3, 1945 to 1955 |
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Television Call-sign (Original) |
Television Call-sign (Current) |
City or location | Owner | Television frequency | Television channel (current) | On air | Off air | Disk holes or lines | Frames per second | Original broadcast system | Current broadcast system | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
W6XAO | KTSL (Now KCBS-TV) | Hollywood, California/Los Angeles, California | Don Lee | Channel 1 | Channel 2 | 1931 | Still On Air | 525 | 30 | Mechanical television | Now NTSC-M | ||
W6XHH | None | Los Angeles, CA | Hughes Tool Co. | 2 | None | None | None | 525 | 30 | Mechanical television | None | ||
W6XZY | KTLA-TV | Los Angeles, CA | Television Productions, Inc. | 4 | 5 | 1942 | Still On Air | 525 | 30 | Mechanical television | Now NTSC-M | ||
KSEE | None | Los Angeles, CA | Earl Anthony, Inc. | 6 | None | Unknown | off-air | 525 | 30 | Mechanical television | None | ||
W6XHT | None | San Francisco, CA | Hughes Tool Co. | 2 | None | Unknown | off-air | 525 | 30 | Mechanical television | None | ||
W3XWT | WTTG | Washington, DC | Dumont Labs, Inc. | Channel 1 | Channel 5 | 1941 | Still On Air | 525 | 30 | Mechanical television | Now NTSC-M | ||
WNBW | WRC-TV | Washington, DC | NBC | 2 | 4 | 1941 | Still On Air | 525 | 30 | Mechanical television | Now NTSC-M | ||
W9ZV/W9XZV | None | Chicago, IL | Zenith Radio Corp. | Channel 1, then Channel 2 |
None | 1939-1941, 1951-1953 as KS2XBS | Off-Air | 525 | 30 | Mechanical Television | None | ||
W9XBK | Became W9XCB, then WBKB, now WBBM-TV |
Chicago, IL | Balaban and Katz Corp. | Channel 2 | Channel 2 | 1940 | Still On Air | 525 | 30 | Mechanical television | Now NTSC-M | ||
W9XCB | WBBM-TV | Chicago, IL | CBS | Channel 4 | Channel 3 | 1940 | Still On Air | 525 | 30 | Mechanical television | Now NTSC-M | ||
W9XG | West Lafayette, IN | Purdue University | 3 | None | 1930 | 1946? | 525 | 30 | Mechanical television | None | |||
W9SUI | Iowa City, IA | University of Iowa | Channel 1, later Channel 12 |
None | 1931 | 1941? | 525 | 30 | Mechanical television | None | |||
W1XG | Boston, MA | General Television Corp. | Channel 1 | None | 1931 | 1941? | 525 | 30 | Mechanical television | None | |||
W3XEP | None | Camden, New Jersey | RCA | 5, 10, 12 | None | July, 1931 (as portable W3XAD) | 1941? | 525 | 30 | Mechanical television | None | ||
W2XVT | WNYW | Passaic, New Jersey | DuMont Laboratories | Channel 4 | Channel 5 | 1938 | Became W2XWV in 1944 | 525 | 30 | Mechanical television | Now NTSC-M | ||
W2XWV | WNYW | Passaic, New Jersey | DuMont Laboratories | Channel 4 | Channel 5 | 1944 | Became WABD-TV in 1944 | 525 | 30 | Mechanical television | Now NTSC-M | ||
W2XJT | None | Jamaica, New York | Jamaica Radio & TV Corp. | Channel 3, then Channel 13 | None | 1940, moved to Ch. 13 in 1945 | 1947? | Unknown | Unknown | Mechanical television | None | ||
WNBT | WNBC-TV | New York City, New York | NBC | Channel 1 | Channel 4 | 1928 (as W2XBS) | Still On Air | 525 | 30 | Mechanical television | Now NTSC-M | ||
WCBW | WCBS | New York City, NY | CBS | Channel 2 | Channel 2 | 1938 (as W2XAB) | Still On Air | 525 | 30 | Mechanical television | Now NTSC-M | ||
WABD | WNYW-TV | New York City, NY | DuMont Labs, Inc. | Channel 4 | Channel 5 | 1938 (as W2XVT, then W2XWV) | Still On Air | 525 | 30 | Mechanical television | Now NTSC-M | ||
W2XXB | New York, NY | Bamberger Broadcasting Svc. | 6 | Experimental | |||||||||
W2XMT | New York, NY | Metropolitan Television Inc. | 8 | Experimental | |||||||||
WRGB | Schenectady, NY | General Electric | 3 | Commercial | 525 | 30 | Mechanical television | Now NTSC-M | |||||
W8XCT | Cincinnati, OH | Crosley Corp. | 1 | Experimental | |||||||||
W3XE | WPTZ | Philadelphia, PA | Philco Radio & TV | 3 | Commercial | 525 | 30 | Mechanical television | Now NTSC-M | ||||
W3XAU | Philadelphia, PA | WCAU Broadcasting Co. | 5 | Experimental | |||||||||
W8XGZ | Charleston, WV | Gus Zaharis | 1 | Experimental | |||||||||
WMJT | WTMJ-TV | Milwaukee, WI | The Journal Co. | Channel 3 | Channel 4 | 1931 (as W9XD, became W9XAD in 1934) | Still On Air | 525 | 30 | Mechanical television | Now NTSC-M | ||
KS2XBS (First pay-TV service, "PhoneVision") |
None | Chicago, IL | Zenith | 2.1-2.2 mHz, later Channel 2 | None | 1951 | 1953? | 525 | 30 | Mechanical television | Now NTSC-M | ||
KC2XAK | None, now part of WNBC-TV | Bridgeport, Connecticut | RCA/NBC | UHF 24 | None | December 29, 1949 | August 23, 1952 | 525 | 30 | Mechanical television | Now NTSC-M | ||
KPTV | KPTV | Portland, Oregon | Unknown | Channel 27 | Channel 12 | September 20, 1952 | Still On Air | 525 | 30 | Mechanical television | Now NTSC-M |
[edit] See also
- Timeline of the BBC
- History of television
- Timeline of the introduction of television in countries
- Timeline of the colour television in countries
- Geographical usage of television
- Moving image formats
- Oldest radio station
- List of experimental television stations
- Narrow-bandwidth television
- Oldest television station
- Early television stations
- Television systems before 1940