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Post by Deleted on Jun 12, 2018 14:15:39 GMT
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Post by part15engineer on Jun 12, 2018 16:17:39 GMT
why are they so intent on cramming the am and fm bands completely full with full power stations and translators??? not only are they wanting to do this to fm but they are also wanting to do something similar to am as well!!!
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Post by mark on Jun 12, 2018 16:30:58 GMT
I assume if AM stations have more power they will get through more of the interference and be more listenable.
I agree with you.....I thought everyone wanted to get off AM and that's the reason for the translators.
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Post by thelegacy on Jun 13, 2018 4:58:38 GMT
You can only run so much power on am. Seriously back in the day some of the high-powered stations were so powerful that they would rather the roof of a barn or in some cases come in on people's braces you know like for their teeth.
Yes it seem that around the mid 70s early 70s that some of the AM stations had more power but I think it was a combination of better receivers along with it. The FCC is totally missing the boat you have to start with the receiver and I don't think that adding more power is going to be the magic pill.
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Post by Boomer on Jun 13, 2018 7:02:16 GMT
Small pieces of pie
I think some of the cramming is due to tech improvements on both the transmitter and receiver sides, plus audio distribution being so easy, along with maturing of the band, where some may feel we're in the latter days of FM, so people don't mind if interference protections are thrown out, and there's a frenzy on the air.
Listeners probably aren't so concerned about interference either, and if they can get a station or not, they'll just pick up the set of stations they can get in that particular location, or in the car, tend to tune in the full power stations that give the best reception.
It's been that way for a long time, sure, but with network programming so established, and many alternatives, plus the sea of radio stations, the value of keeping it clean and interference free is lower. Now it's probably valuable enough to have your translator pick up a few listeners in an area from time to time and have them listen to a few ads in their quarter hour, and few people care, it's mostly satellite and fed from out of the area.
Boomer
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Post by Boomer on Jun 13, 2018 7:21:03 GMT
From the same site as Carl posted: "Pirates Break the Law — But Are the Rules Fair? ".. but I do have a soft spot for neighborhood radio, and I’m not at all sure that there is much justification in all of the broadcast spectrum being used for mega-corporation cash-machine jukeboxes. I could suggest that many of these stations come nowhere near serving the communities’ interests or necessities, and a substantial number have been gleaned of all monetary and social value." radiomagonline.com/blog/pirates-break-the-law-but-are-the-rules-fairHope this wasn't posted before! Boomer |
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Post by mighty1650 on Jun 13, 2018 17:53:51 GMT
You can only run so much power on am. Seriously back in the day some of the high-powered stations were so powerful that they would rather the roof of a barn or in some cases come in on people's braces you know like for their teeth. Yes it seem that around the mid 70s early 70s that some of the AM stations had more power but I think it was a combination of better receivers along with it. The FCC is totally missing the boat you have to start with the receiver and I don't think that adding more power is going to be the magic pill. The biggest issue has been the noise floor getting worse with each decade, AM stations typically had less power than they do now with some notable exceptions.
Start with the interference and then work on the receivers, otherwise you're just making a bad problem worse.
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Post by mark on Jun 13, 2018 20:10:15 GMT
Here's The REAL solution to the problem....
But I hope this NEVER HAPPENS as it would mean the end of part 15 and BETS-1!!
Go digital............
This would solve the piracy problem as it would not be possible to do. Digital doesn't have frequencies and "space" like analog. And the system is patented. You cannot get a digital transmitter....even from China.
It would solve the electrical noise problem..........no such thing with digital.
Instead of a "band" of a certain number of frequencies and limited space in large populated areas for all the stations and "cramming" with all the translators digital information is a code that needs very little space for transmission. There's no "bandwidth", instead hundreds and hundreds of stations can be in a very small part of a spectrum.....maybe 15 stations could fit in the space of one station with analog. Lots of room.
But unlike analog, if you are on the fringe of a reception area the audio, like the TV picture, would be missing info and break up and go haywire. To have a decent coverage stations could have more power.
But this is not happening in the forseeable future as no plans for this are in the works yet and a system already is in place for N America which is HD and works in the analog bands side by side.
Breath easy!! Our hobby will be around for a while. And if it was decided to go digital even after it's decided there's a transition time and that's like 10+ years.
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Post by Boomer on Jun 14, 2018 2:44:47 GMT
I'm thinking that hackers would probably defeat digital if that's all we had to broadcast with. HD IBOC reception has already been reverse engineered, by a security company that was looking for vulnerabilities in its code.
With the state of the art in digital transmission hardware now, if the transmitter code was broken, it could be transmitted with wi-fi style hardware, technology that's already well established. It probably wouldn't be done with wi-fi hardware itself, but something along those lines at 100 mhz.
Boomer
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Post by mighty1650 on Jun 14, 2018 18:38:35 GMT
You can buy HD exciters on eBay. At that point it'd be as simple as unlocking the device.
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Post by thelegacy on Jun 14, 2018 20:29:39 GMT
And remember LPTV analog is still legit so part 15 AM would still be. Maybe a place would be reserved for it.
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Post by mark on Jun 14, 2018 23:05:27 GMT
Well, in rethinking my post in this thread going digital wouldn't stop pirates because the empty bands would still be there just like the vacated TV ones and with millions and millions of radios and all the transmitters pirate radio would still be alive and well. And unless it becomes illegal so would hobby radio. But as I said this is not happening.
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