Is this why whenever I am in Chicago and tune to ME TV FM on 87.7 in my car the signal sounds a little off and weak? I always thought it was because the station was just not that strong, not because it was off frequency from 87.7. Makes perfect sense now!
-
Get involved.
We want your input!
Apply for Membership and join the conversations about everything related to broadcasting.
After we receive your registration, a moderator will review it. After your registration is approved, you will be permitted to post.
If you use a disposable or false email address, your registration will be rejected.
After your membership is approved, please take a minute to tell us a little bit about yourself.
https://www.radiodiscussions.com/forums/introduce-yourself.1088/
Thanks in advance and have fun!
RadioDiscussions Administrators
87.7 now permanent ?
- Thread starter radioislife2020
- Start date
Yep. It should sound not necessarily weak, but distorted. Denver's 87.7 travels the whole 105 miles to Cheyenne, but it does sound weird because it is off frequency
Wonder how full power channels on RF channel 6 feel about this (ex. Philly's WPVI)? Using those signals for a 87.7 radio station would be a nice extra. Didn't a TV station in New York state try analog audio on their digital signal and the FCC shut that down?
I could get WPSD NBC 6 in Paducah, KY on 87.7 on my car stereo regularly and the audio was lower volume than regular FM stations But it was listenable. I liked to use it when something was on that I wanted to hear while I was on the road.
I'm trying to remember now, but I believe that we used to listen to them there during power outages, during storms, etc.
Would a digital TV station on RF channel 6 be affected in any perceptible (to the viewer) way by an analog signal on 88.7?
There should be no interference from an 88.7 signal.
You mean 87.7?? A ATSC V1,YES...would cause the TV decoders to mute..ATSCV3?? depends but in most cases, NO...analog?? Hell yes!! but only in the aural but not the video.
The STA for the current Frankens mandate 87.75 for the FM signal, not 87.7. It was REQUESTED by Venture...not sure why they did but I would have thought they should have gone with 87.70. Seems like they want to shoot themselves in the foot .....great way to disprove a technical STA.
ME TV FM, Chicago is approved to operate their analog aural carrier at 87.7MHz.You mean 87.7?? A ATSC V1,YES...would cause the TV decoders to mute..ATSCV3?? depends but in most cases, NO...analog?? Hell yes!! but only in the aural but not the video.
The STA for the current Frankens mandate 87.75 for the FM signal, not 87.7. It was REQUESTED by Venture...not sure why they did but I would have thought they should have gone with 87.70. Seems like they want to shoot themselves in the foot .....great way to disprove a technical STA.
Vegas and a few other cities just went on the air with 87.7
In 6 months it has worked
That and getting regular programs when I was on the road traveling or working.
Check the STA again, Frank...I think you'll find it specifies 87.75
Boy are you correct. the station requested 87.7 but the FCC granted 87.75. I missed that one!
That was WRGB in Albany NY. They tried using 87.9 to broadcast their audio in analog after they transitioned to digital on channel 6 in 2009. They never asked for permission from the FCC and had to shut it down.
WRGB ends FM radio simulcast
The simulcast had been available for years at 87.7 FM, but it disappeared in June when...
www.timesunion.com
Highly doubtful it fails. ATSC 3.0 offers more bandwidth for better picture quality. With "cable cutting" and 4K streaming becoming a trend, ATSC 3.0 is arriving just in the nick of time.
Its just a matter of time before these tuners become cheap enough to be shipped with the most basic 4K model TVs.
analog channel 6's had different rules/regs regarding audio then regular FM stations.. wish i remembered exactly what, but i think pre emphasis was different, and modulation/deviation had to be lower or different
Edit: at different points in my life i lived near orlando, philly and providence all during the analog days.. and their FM audio was all a bit lower and weak then regular FM stations
Most of us don't need 4K TVs. What we need is to be able to receive all local broadcast stations without them cutting out due to the wind russling the trees in our back yards, airplanes in the path between receiver and transmitter, solar noise, and the like. BTW, I have problems with all three.
ATSC 1.0 is all but useless to me. When I lived about 5 miles from the South Mountain towers in Phoenix, I had to add an FM trap to prevent overload. That's no longer needed, now that I'm 25 miles away, but there is no excuse for any of the rest.
The deviation of the FM audio signal on analog TV was +/- 25 kHz, as opposed to +/- 75 kHz on a standard FM Radio signal. Listening to 87.7 on an FM radio would just produce weak audio since the radio's bandwidth would still pick up the entire channel.
- Status