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 Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives RF Cascade Workbook 2018 RF Symbols for Visio - Word Advertising RF Cafe Forums Magazine Sponsor RF Cafe RF Electronics Symbols for Visio RF Electronics Symbols for Office Word RF Electronics Stencils for Visio Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Anritsu Alliance Test Equipment Amplifier Solutions Anatech Electronics Axiom Test Equipment Berkeley Nucleonics Bittele Centric RF Conduct RF Copper Mountain Technologies Empower RF everything RF Exodus Advanced Communications Innovative Power Products ISOTEC KR Filters Lotus Systems PCB Directory Rigol RF Superstore San Francisco Circuits Reactel RFCT TotalTemp Technologies Triad RF Systems Windfreak Technologies Withwave LadyBug Technologies Wireless Telecom Group Sponsorship Rates RF Cafe Software Resources Vintage Magazines Thank you for visiting RF Cafe!
Windfreak Technologies SynthHD PRO - RF Cafe

Reception prob - RF Cafe Forums

RF Cafe Forums closed its virtual doors in 2010 mainly due to other social media platforms dominating public commenting venues. RF Cafe Forums began sometime around August of 2003 and was quite well-attended for many years. By 2010, Facebook and Twitter were overwhelmingly dominating online personal interaction, and RF Cafe Forums activity dropped off precipitously. Regardless, there are still lots of great posts in the archive that ware worth looking at. Below are the old forum threads, including responses to the original posts.

NOTICE: The original RF Cafe Forum is available again for reading, and the new RF Cafe Blog is an active board.

-- Amateur Radio

-- Anecdotes, Gripes, & Humor

-- Antennas

-- CAE, CAD, & Software

-- Circuits & Components

-- Employment & Interviews

-- Miscellany

-- Swap Shop

-- Systems

-- Test & Measurement

-- Webmaster

skippy
 Post subject: Reception prob
Posted: Fri Aug 05, 2005 10:04 pm 
Newbie here,hope someone can help. I live about 2 miles from my NBC affiliate, which would be VHF 12. It seems to effect virtually all my local channels, to such a degree that my fox is completely scrambled and its UHF 35 , and only 10 miles away. The question is would the HDTV stuff( it all being UHF) be just as likely to be shot by this overpowering local channel? Hope this makes sense.thanks.

 
  
 
kanling
 Post subject:
Posted: Mon Aug 08, 2005 2:19 pm 
 
Colonel
User avatar

Joined: Mon Jul 18, 2005 4:31 pm

Posts: 32

Location: Baltimore, MD

Yes, HDTV would be affected by the same overloading. The trouble you are having with UHF35, in fact, may be caused by the NBC high def signal, not by channel 12.

Things to try:

1. Call the TV station and ask them to provide you some filters because of overload you are getting. In the past, they sometimes have.

2. Buy an attenuator at Radio Shack that will cut the NBC level and still allow 35 to be viewable.

3. If you feel like tinkering, you can make a "quarter wave stub" filter yourself out of coax cable. See a ham radio book for instructions.

4. Borrow somebody else's TV. I wouldn't think yours should overload so easily.

By the way, if you are running an antenna amplifier, all of the trouble is probably there.


 
   
 
kpainter
 Post subject:
Posted: Mon Aug 08, 2005 4:50 pm 
 
Colonel
User avatar

Joined: Wed Aug 20, 2003 11:47 am

Posts: 47

Location: Santa Barbara, CA

All good advise.

Another option would be to just turn your set off altogether. You wouldn't be missing anything useful.


Posted  11/12/2012

Amplifier Solutions Corporation (ASC) - RF Cafe
withwave microwave devices - RF Cafe
Innovative Power Products Passive RF Products - RF Cafe

RF Cascade Workbook 2018 by RF Cafe

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

These Are Available for Free

 

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024

Webmaster:

    Kirt Blattenberger,

    BSEE - KB3UON

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...

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