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#1
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On Mon, 3 Oct 2005 12:01:14 -0400, Fred W4JLE wrote:
In that case, simply modify the sign to "Tune to 560, it could save your life" and use a discrete frequency low power transmitter. I assume you mean to take up an unused local channel? Or to bargain for time on a used one? Both ideas make sense. -- Drop the alphabet for email |
#2
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"Ari Silversteinn" wrote in message ... On Mon, 3 Oct 2005 12:01:14 -0400, Fred W4JLE wrote: In that case, simply modify the sign to "Tune to 560, it could save your life" and use a discrete frequency low power transmitter. I assume you mean to take up an unused local channel? Or to bargain for time on a used one? Both ideas make sense. -- Drop the alphabet for email if this is for real time notification you don't have time to bargain or to find an unused channel... and who would listen to you anyway if it was unused? how often do you turn the knob on your car radio?? what about the emergency broadcast system? that would seem to be the 'proper' method of emergency notification, its already set up for all sorts of local, regional, and national notifications. |
#3
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"Ari Silversteinn" wrote in message ... On Mon, 3 Oct 2005 12:01:14 -0400, Fred W4JLE wrote: In that case, simply modify the sign to "Tune to 560, it could save your life" and use a discrete frequency low power transmitter. I assume you mean to take up an unused local channel? Or to bargain for time on a used one? Both ideas make sense. -- Drop the alphabet for email On Mon, 3 Oct 2005 21:47:29 -0000, Dave wrote: if this is for real time notification you don't have time to bargain or to find an unused channel... and who would listen to you anyway if it was unused? how often do you turn the knob on your car radio?? Often actually and I agree about the unused channel, at first blush what about the emergency broadcast system? that would seem to be the 'proper' method of emergency notification, its already set up for all sorts of local, regional, and national notifications. The EBS is voluntary, this is not. -- Drop the alphabet for email |
#4
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There are a couple of frequiencies for unlicensed low power am stations. You
can see them in use by real estate folks selling houses. There are no commercial stations on the frequency. "Ari Silversteinn" wrote in message ... On Mon, 3 Oct 2005 12:01:14 -0400, Fred W4JLE wrote: In that case, simply modify the sign to "Tune to 560, it could save your life" and use a discrete frequency low power transmitter. I assume you mean to take up an unused local channel? Or to bargain for time on a used one? Both ideas make sense. -- Drop the alphabet for email |
#5
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On Mon, 3 Oct 2005 17:58:33 -0400, Fred W4JLE wrote:
There are a couple of frequiencies for unlicensed low power am stations. You can see them in use by real estate folks selling houses. There are no commercial stations on the frequency. Yes, and at Disney World, etc. This is a very doable idea and may well solve FCC/DoD issues. -- Drop the alphabet for email |
#6
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"Ari Silversteinn" wrote in message
... On Mon, 3 Oct 2005 17:58:33 -0400, Fred W4JLE wrote: There are a couple of frequiencies for unlicensed low power am stations. You can see them in use by real estate folks selling houses. There are no commercial stations on the frequency. Yes, and at Disney World, etc. This is a very doable idea and may well solve FCC/DoD issues. -- When was the last time you listened to one of those frequencies? It won't get the message out where it's needed. Ken |
#7
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I can't find the part of the FCC regs that provide these frequencies for
unlicensed stations. Can anybody share the chapter and verse? Jim There are a couple of frequiencies for unlicensed low power am stations. You can see them in use by real estate folks selling houses. There are no commercial stations on the frequency. Yes, and at Disney World, etc. This is a very doable idea and may well solve FCC/DoD issues. |
#8
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It can be found under the section that allows a transmitter as long as it is
less than some number of milliwatts per meter. If you really need the exact section, I will drag out the regs and get it for you. "RST Engineering" wrote in message ... I can't find the part of the FCC regs that provide these frequencies for unlicensed stations. Can anybody share the chapter and verse? Jim There are a couple of frequiencies for unlicensed low power am stations. You can see them in use by real estate folks selling houses. There are no commercial stations on the frequency. Yes, and at Disney World, etc. This is a very doable idea and may well solve FCC/DoD issues. |
#9
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That is part 15 and it isn't just a couple of frequencies, it is any
frequency in the AM broadcast band (and the FM broadcast band, for that matter). Specifically, 15.219 allows operation on any frequency in the band so long as (a) the input power to the final stage is less than 100 mW and (b) the antenna "system" (radiating element, coax, and ground lead) is less than 3 meters long. 15.221 also allows operation with an unspecified power level into leaky coax with a field strength limitation. Power is not milliwatts per meter. Power is milliwatts. Field strength (also an allowed measurement) is in volts per meter. The OP said that there were a "couple of frequiencies(sic)for unlicensed low power am(sic) stations." That implied that there were a couple of frequencies that were unused in the AM band by commercial stations, and I just wanted to have a reference to WHAT they were and WHERE in the regs they were delineated. Jim "Fred W4JLE" wrote in message ... It can be found under the section that allows a transmitter as long as it is less than some number of milliwatts per meter. If you really need the exact section, I will drag out the regs and get it for you. "RST Engineering" wrote in message ... I can't find the part of the FCC regs that provide these frequencies for unlicensed stations. Can anybody share the chapter and verse? Jim There are a couple of frequiencies for unlicensed low power am stations. You can see them in use by real estate folks selling houses. There are no commercial stations on the frequency. Yes, and at Disney World, etc. This is a very doable idea and may well solve FCC/DoD issues. |
#10
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On Tue, 4 Oct 2005 16:09:19 -0400, Fred W4JLE wrote:
It can be found under the section that allows a transmitter as long as it is less than some number of milliwatts per meter. If you really need the exact section, I will drag out the regs and get it for you. Does this fall under LPFM/LPAM? -- Drop the alphabet for email |
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