On Tue, 04 Oct 2005 14:54:42 GMT, Wayne P. Muckleroy wrote:

Suggestion: Why don't you also broadcast such "emergency" information over
the entire spectrum of wireless network frequencies? That way, you could
post the information into every Usenet group on the globe. Just like you
have done with these postings.

Usenet being a place that only a few people access, aside from that, it's
not a bad idea, actually.
--
Drop the alphabet for email

"Ari Silversteinn" wrote in message
...
On Tue, 4 Oct 2005 14:57:01 +1300, Ken Taylor wrote:

All agreed, but that is in a tunnel, which has the advantage of not
having
to overcome the still-received commercial stations. The OP wants to do
this
out in the open, anywhere, any time. He also wanted to do it while
driving
at high speed for some reason, but I think he's quietly shelved that part
of
the idea.

Cheers.

Ken

MOF, it has reared its ugly hi speed head again.
--
Sorry, what's 'MOF'?

Ken

"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

"Ari Silversteinn" wrote in message
...
On Mon, 03 Oct 2005 14:31:36 -0700, Richard Clark wrote:

On Mon, 3 Oct 2005 16:33:52 -0400, Ari Silversteinn
wrote:
OK, so we supply the amplification.

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.

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

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.

On Wed, 5 Oct 2005 08:09:19 +1300, "Ken Taylor"
wrote:

"Ari Silversteinn" wrote in message
.. .
On Mon, 03 Oct 2005 14:31:36 -0700, Richard Clark wrote:

On Mon, 3 Oct 2005 16:33:52 -0400, Ari Silversteinn
wrote:
OK, so we supply the amplification.

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.

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

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.

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.

In this case the milliwatts per meter refers to frequencies stated in
meters.

Volts per meter only applies to the E component, the magnetic component is
always stated in amps per meter.

I will get back to you on the specifics. I am pretty sure that my brain is
not suffering from a senior moment as to my recollection of the regs.

"RST Engineering" wrote in message
...
Power is not milliwatts per meter. Power is milliwatts. Field strength
(also an allowed measurement) is in volts per meter.

On Tue, 4 Oct 2005 17:31:37 -0400, "Fred W4JLE"
wrote:
In this case the milliwatts per meter refers to frequencies stated in
meters.

Hi Fred,

Is this to suggest that for 300MHz it is 1mW total input power as say
compared to 1MHz allowing 300mW?

This would be uncharacteristically generous of the FCC whose
regulations would ban emissions from dummy loads.

Seems it would hardly serve Ari's search for pork, but I suppose
grantsmanship would jump at sending a marathon of runners through the
spill area - each carrying sub-Watt handi-talkies to provide the
aggregate power, and spectrum, and lung volume necessary to "get the
warning out."

73's
Richard Clark, KB7QHC