HDTV Our following pages provide detailed information:
Television Frequency Reference (plus CATV, Wireless Cable, & more)
Can't use a channel because the next one over has an STL or a "Live Eye" from another station? Send us your receiver, and we'll modify it to give you typically >80 db adjacent channel rejection, with our PMI-70" SAW Filter upgrade! No matter what channel you're on, you'll think you're the only one on the whole band!
Before calling regarding a Satellite Communications problem, please check SOLAR FLARE, NASA's SOLAR FLARE INFO, Radio Blackouts, plus typical effects.
Call us about "lightning proofing" or upgrading your ENG/STL System. We stock most hard to get relays, replacement LNAs, et. Call us for Custom Antenna Systems. Our high level LNAs provide up to 45 db of clean gain for long Heliax runs.
New 3G and 4G, Broadband Wireless Internet, Cell Phones, Terminals, Videoconferencing, et., will soon be common in the U.S. These high power signals, if not heavily filtered, will overload virtually all LNAs, causing intermod. (NOTE: As of October, 2000, this service has requested the 1.8 GHz "Government Band" to be paired with the 1.7 GHz, which is accepted worldwide).
Television Broadcast Carrier Frequencies - HDTV Assignments and Status - Band Changes - Spectrum Auction Information:
Commercial Broadcast Television Carrier Frequencies PLUS Wireless Cable
HDTV Interim Channel Assignments (FCC website)
FCC takes UHF Channels 60-69 and auctions them off for land mobile use.
Winning PCS Bids listed by Location, Company, and Frequency Block * * Use this to identify the PCS Company(s) in your city * * Spreadsheet-Download Only with Netscape; Internet Explorer will display spreadsheets (xls format)
Misc:
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Download: FCC Phone Book for Windows (approx 308k, self extracting file)
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Download: Graphics Workshop 95.ZIP Creates "thumbnails" for viewing all image files in a directory-no need to load them one at a time! (1,838k)
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Download: DLL Master 32.zip See all files loaded by Windows 95 programs (240k)
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Download: Snagit.zip Allows you to select and save what's on your screen (742k)
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Download: BARS.EXE Displays NTSC color bars on your computer (174k)
Computers for Digital Video Editing or Server Application (PC Extreme)
Links to other sites:The first Stereo Broadcast was in 1924 by WDRC - AM
August 6, 1924: An unusual experiment was conducted. The Radio Division authorizes WPAJ to conduct "duplex" (binaural) broadcasts on two frequencies - 1120 and 1320 kilocycles - meaning the same program is broadcast, but a different microphone fed the two transmitters, placed into service for these first stereophonic broadcasts. The musical programs, broadcast live, were heard by listeners placing two radios in a room at opposite ends, and tuning in the two different frequencies of WPAJ. This three-month authorization was not renewable.
Useful / Interesting WWW Links:
Correct Time from US Government (NIST) - Accurate to within 0.3 seconds
Misc links:
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TV Jobs Employment in the Television Industry
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Advanced Television Systems Committee Standards for HDTV, et.
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Doug Lung's RF Technology Page Contains information and links of interest for broadcast engineer types.
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Jim Hawkin's Radio Room An excellent collection of transmitter site photographs.
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SBE The Society of Broadcast Engineers.
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European Frequency Allocation: European Radio Communications Office (12/30/2000)
Vendors, New & Rebuilt Equipment:
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Andrew Corporation Antennas, Line, and associated hardware
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Anritsu Corporation High accuracy R.F.Test Equipment
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Boonton Electronics Test Equipment, Power Meters
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CRL Systems Broadcast Products
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Harris Allied Harris Broadcast Division.
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MARTI Electronics Broadcast Products
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Hewlett-Packard Test equipment
Health Related:
©Copyright 1997, 1998, 1999, 2000, 2001, 2002 2003 - by LLoyd W. Phillips