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Post by thelegacy on Jun 13, 2018 17:30:22 GMT
Well because of the individual that I had issues with on the other form I need to be very careful about the exact location. I suppose if you get to know me real well we could talk about that in private. But as far as public posting don't think it would be a good idea. Trying to give you an estimate without actually hitting the mark.
I will say that the Deltaville Market is about 1.4 miles from me. Taylor's restaurant it's about the same but on the other side. The place I live has a curve. There's to Bay one is at fishing Bay EST and the other one is at Stingray point Marina. That's the direction that has a few spots that go pretty far because of the water.
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Post by Druid Hills Radio on Jun 13, 2018 17:34:39 GMT
Well because of the individual that I had issues with on the other form I need to be very careful about the exact location. I suppose if you get to know me real well we could talk about that in private. But as far as public posting don't think it would be a good idea. Trying to give you an estimate without actually hitting the mark. I will say that the Deltaville Market is about 1.4 miles from me. Taylor's restaurant it's about the same but on the other side. The place I live has a curve. There's to Bay one is at fishing Bay EST and the other one is at Stingray point Marina. That's the direction that has a few spots that go pretty far because of the water. OK, no problem. |
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Post by mighty1650 on Jun 13, 2018 17:44:31 GMT
I had a feeling these homebrew units could get out. One weekend I forgot I had it set to 500mW and was a bit more than surprised to hear the signal 2 miles out when all it had was a wire loosely hung from a curtain rod. I've been wanting to put the unit in an outdoor enclosure with a CB whip to see what it could really do.
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Post by thelegacy on Jun 13, 2018 18:15:49 GMT
I wouldn't cry about 2 miles. In fact if you leave it the way it is chances are nobody will throw a hissy fit at you.
The FCC agent that visited me told me in my area as he surveyed it I would get out 1.5 to 2 miles and that is exactly the range I'm getting was what the FCC agent said I would.
Remember that gospel station on am in Indiana called ktgr which is Total Gospel radio he is pushing 5 miles and what really surprises me is his antenna setup.
David Dombrowski told me that the FCC does give some leeway as long as you don't get crazy and try to run multiple stories high with a long ground wire. They already know that some people might be what they are the big thing is to try as best you can do not push anybody's buttons as far as law enforcement goes and I think you'll be fine.
My engineer friend did tell me that there is talk that the organizations are lobbying to allow hobby broadcasters a certain portion of the am band with the power level similar to what atis station has.
When I talk about my range however please don't think that it's a solid signal all the way through. There are dead spots in there. When you get up to the 7-Eleven there's a dead spot. But as you turn left to go towards the Deltaville Market it fades back in and gets pretty loud. Sunset Grill it can be hurt at but depending on where you park there are dead spots.
All in all I'm pretty happy because I'm using far less power and yet I'm beating a pirate FM signal at a whole lot more power.
How do you say push the manufacturers to make better am receivers and I think you'll have the problem solved. Because after all it's the receiver that's the problem in this case not the transmitter.
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Post by mark on Jun 13, 2018 20:30:44 GMT
Legacy said: "How do you say push the manufacturers to make better am receivers and I think you'll have the problem solved. Because after all it's the receiver that's the problem in this case not the transmitter."
How true that is. The receiver is just as important as the transmitter for range.
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Post by Boomer on Jun 14, 2018 2:20:16 GMT
Great to hear that your station is working the way you want it to, and now you'll have to make some liners about being in AM stereo! Hope you get a monitor radio at your house too.
Indeed better radios can be made, and the answer today is through the DSP chips that most new radios are made with. They're like mini SDR (software defined radios) or rather, firmware defined.
They could easily be programmed to receive the full 20 khz RF bandwidth allowed of AM stations, when signals are strong, and automatically narrow bandwidth for distant signals, or under noisy conditions, and at night.
They can select the upper or lower sideband if there's a big noise on one side of the station and use noise blanking and other filtering, plus 10 khz whistle elimination.
Quite a lot can be done to seriously clean up a signal, as well as offer an AM detector stage with low distortion, distortion being an ongoing problem in AM receivers for many years.
Since a chip can have a quadrature stages for detecting different signals, it should be easy to just add a C-QUAM detector as it is to add an FM stereo detector in the digital chip.
I think it's likely that the people who wrote the firmware for the current chips didn't consider the specs of the North American market when they were designing.
Boomer
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Post by thelegacy on Jun 14, 2018 4:09:27 GMT
I`m looking at the Radiosphy HD-100 or Sangean HDR-1. Just need at least $10 more in my PayPal account.
I will let you know.
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