Re: Goodbye AM radio, says Ford, Tesla
[Re: 5thAve]
#3116907
01/27/23 01:21 AM
01/27/23 01:21 AM
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Joined: Feb 2003
Posts: 10,218 Someplace you aren't
SomeCarGuy
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 10,218
Someplace you aren't
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700 wlw has an fm station simulcast and strangely I’ve heard static on the fm one right in downtown.
I want my fair share
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Re: Goodbye AM radio, says Ford, Tesla
[Re: 360view]
#3117112
01/27/23 04:47 PM
01/27/23 04:47 PM
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Joined: May 2012
Posts: 1,840 South Bend
John Brown
top fuel
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top fuel
Joined: May 2012
Posts: 1,840
South Bend
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700 WLW has perhaps the most varied history of experimenting with radio broadcasts, high power levels, simulcasting, etc WLW used to really kick a s s..... In January 1934, WLW began broadcasting with 500,000 watts after midnight under the experimental call sign W8XO. In April 1934 the station was authorized to operate at 500,000 watts during regular hours using the WLW call letters. On May 2, 1934, President Franklin D. Roosevelt ceremonially pressed the same golden telegraph key that Wilson had used to open the Panama Canal, officially launching WLW's 500-kilowatt signal.
As the first station in the world to broadcast at this strength, WLW received numerous complaints from around the United States and Canada that it was interfering with other stations, most notably from CFRB, then on 690 kHz, in Toronto, Ontario. In December 1934, WLW was instructed to cut back to 50 kilowatts at night until it had eliminated the interference.[36] The station began construction of two shorter towers 1,850 feet (560 m) southwest from the main tower in order to create a directional antenna, which successfully reduced the signal broadcast towards Canada. With these antenna towers in place, full-time broadcasting at 500 kilowatts resumed in early 1935. However, WLW was continuing to operate under special temporary authority that had to be renewed every six months; each renewal brought complaints about interference, and undue domination of the market by the high-powered station.https://en.wikipedia.org/wiki/WLW
July 19th should be "Drive Like Rockford Day". R.I.P. Jimmie.
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Re: Goodbye AM radio, says Ford, Tesla
[Re: John Brown]
#3117119
01/27/23 05:33 PM
01/27/23 05:33 PM
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Joined: Jan 2006
Posts: 8,162 USA
360view
OP
Moparts resident spammer
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OP
Moparts resident spammer
Joined: Jan 2006
Posts: 8,162
USA
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There are still a few “WHOPPER” power AM stations on Earth: https://mwcircle.org/most-powerful-mw-am-stations/Earlier last year there was an annoying “heterodyne whistle” on 890 WLS Chicago. It was caused by a high power AM station in the desert of Algeria.
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Re: Goodbye AM radio, says Ford, Tesla
[Re: 360view]
#3117268
01/28/23 12:53 PM
01/28/23 12:53 PM
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Joined: Jan 2003
Posts: 20,185 Park Forest, IL
slantzilla
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,185
Park Forest, IL
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When I was a kid in central Illinois when the weather was just right I could listen to KDKA in Pittsburgh.
WLS was the king of radio back then too.
In all seriousness, i don't think I have listened to AM in 20 years.
"Everybody funny, now you funny too."
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Re: Goodbye AM radio, says Ford, Tesla
[Re: Moparite]
#3117300
01/28/23 03:39 PM
01/28/23 03:39 PM
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Joined: Jan 2003
Posts: 21,523 N.E. OHIO, USA
A12
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 21,523
N.E. OHIO, USA
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FM initially had its limits and there were fewer desirable stations available especially sports radio stations like even the daily baseball broadcasts. Most of the FM stations back in the day were either classical or underground and "pirate" rock stations. Also the range and higher priced FM receivers were not that popular. Most home and portable radios were AM. As you said about black and white TVs they also didn't go away for a long time as the color TVs were much, much more expensive originally.
Pros and Cons of AM vs. FM
The advantages of AM radio are that it is relatively easy to detect with simple equipment, even if the signal is not very strong. The other advantage is that it has a narrower bandwidth than FM, and wider coverage compared with FM radio. The major disadvantage of AM is that the signal is affected by electrical storms and other radio frequency interference. Also, although the radio transmitters can transmit sound waves of frequency up to 15 kHz, most receivers are able to reproduce frequencies only up to 5kHz or less. Wideband FM was invented to specifically overcome the interference disadvantage of AM radio.
A distinct advantage that FM has over AM is that FM radio has better sound quality than AM radio. The disadvantage of FM signal is that it is more local and cannot be transmitted over long distance. Thus, it may take more FM radio stations to cover a large area. Moreover, the presence of tall buildings or land masses may limit the coverage and quality of FM. Thirdly, FM requires a fairly more complicated receiver and transmitter than an AM signal does.
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