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#51
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On Tue, 4 Oct 2005 13:51:06 -0700, RST Engineering wrote:
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 Truth is, I was thinking about reserved but not yet assigned AM/FM frequencies. -- Drop the alphabet for email |
#52
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On Tue, 04 Oct 2005 14:46:33 -0700, Richard Clark wrote:
Seems it would hardly serve Ari's search for pork, Hey, I'm Jewish, sort of. -- Drop the alphabet for email |
#53
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On Tue, 4 Oct 2005 15:09:50 -0700, RST Engineering wrote:
Not quite. That is the limit in 15.209, with the following caveat "...except as provided elsewhere in this subpart..." Elsewhere in the subpart (15.219 and 15.221) we have the limit for the band 525-1705 kHz. (AM broadcast band) the 100 mW and 3 meter antenna restriction OR a 15 uV/m restriction at a distance of (47.715/(frequency in kHz.)) meters (which is also lambda/(2 * pi)) from leaky coax. BTW, it is 24000/F uV/m at 30 meters from 490 to 1705 kHz., which is more like 100 feet, not 1000 feet (15.209). Jim So if I need to go out 3500 feet or so, this won't work. Correct? -- Drop the alphabet for email |
#54
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On Wed, 5 Oct 2005 08:04:25 +1300, Ken Taylor wrote:
MOF, it has reared its ugly hi speed head again. -- Sorry, what's 'MOF'? Matter of fact..... -- Drop the alphabet for email |
#55
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On Wed, 5 Oct 2005 08:09:19 +1300, Ken Taylor wrote:
OK, this is just a re-run of previous speculations. You don't know the depth of your energy budget crisis, do you? Open coffers. -- He wasn't referring to your finance budget, but your energy budget. I hesitate to say it can't be done in any practical sense, but that's my thought. The idea of one poster to transmit on the IF's is a good one but I didn't suggest that because you'll also kill your emergency services comm's. lol What;s being tossed around is the ability to allow FEMA et all to kill the ability to transmit and/or we can upon knowing that the emerg comms are in use. Incidentally, do you plan to have every loco in the US fitted out or are you going to fly the loco's to the incident site to do their stuff? Cheers. Ken -- Drop the alphabet for email |
#56
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On Tue, 04 Oct 2005 12:55:29 -0700, Richard Clark wrote:
Open coffers. -- He wasn't referring to your finance budget, but your energy budget. I hesitate to say it can't be done in any practical sense, but that's my thought. Hi Ken, His terse reply refers to the public coffers - troughs - open for this fabulous pork barrel feast. You know, crack dealer capitalism. Nothing has to actually work, or be useful, or even be used. It just has to generate paper in one direction, and cash in the other. Ari is mining us as a dry run for all the terms, shortfalls, and fits to the jigsaw to rummage up into a proposal. 73's Richard Clark, KB7QHC Considering that we have many technologies in use, mof, all technologies that are not in development are in use, this is a load of horse****. If we build it to spec, whatever that spec is, it will be proprietary and how and when they use it is not in our hands. -- Drop the alphabet for email |
#57
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Incorrect.
Jim "Ari Silversteinn" wrote in message ... BTW, it is 24000/F uV/m at 30 meters from 490 to 1705 kHz., which is more like 100 feet, not 1000 feet (15.209). Jim So if I need to go out 3500 feet or so, this won't work. Correct? -- Drop the alphabet for email |
#58
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You are correct Jim, mistyped the extra zero.
"RST Engineering" wrote in message ... Not quite. That is the limit in 15.209, with the following caveat "...except as provided elsewhere in this subpart..." Elsewhere in the subpart (15.219 and 15.221) we have the limit for the band 525-1705 kHz. (AM broadcast band) the 100 mW and 3 meter antenna restriction OR a 15 uV/m restriction at a distance of (47.715/(frequency in kHz.)) meters (which is also lambda/(2 * pi)) from leaky coax. BTW, it is 24000/F uV/m at 30 meters from 490 to 1705 kHz., which is more like 100 feet, not 1000 feet (15.209). Jim "Fred W4JLE" wrote in message ... Richard the value changes per band and is stated in part 15. For example in the broadcast band the formula is 24000 /F for microvolts at 1000 feet. |
#59
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Which zero?
On Tue, 4 Oct 2005 19:44:44 -0400, Fred W4JLE wrote: You are correct Jim, mistyped the extra zero. "RST Engineering" wrote in message ... Not quite. That is the limit in 15.209, with the following caveat "...except as provided elsewhere in this subpart..." Elsewhere in the subpart (15.219 and 15.221) we have the limit for the band 525-1705 kHz. (AM broadcast band) the 100 mW and 3 meter antenna restriction OR a 15 uV/m restriction at a distance of (47.715/(frequency in kHz.)) meters (which is also lambda/(2 * pi)) from leaky coax. BTW, it is 24000/F uV/m at 30 meters from 490 to 1705 kHz., which is more like 100 feet, not 1000 feet (15.209). Jim "Fred W4JLE" wrote in message ... Richard the value changes per band and is stated in part 15. For example in the broadcast band the formula is 24000 /F for microvolts at 1000 feet. |
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