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PICList Thread
'[OT] FM transmitter'
1998\09\04@003043 by Format

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I would like to build a stereo 30-40 watt FM transmitter as a hobby
project. I would like to know if anyone knows about this, or where I
could parts and more information.

Thanks a lot.

--
<------------------------------------------------------->
< Martin Klingensmith, AKA Format.                      >
< Pyrotechnics - Mountain Bikes - Electronics - Coding  >
< Aquaria - Computers - Computer Selling - And the list >
< Keeps going, and going...                             >
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1998\09\04@004704 by Bob Blick

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www.panaxis.com

Be prepared for a visit from men in cheap suits if you get popular.

1998\09\04@005917 by Diana Mariner

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Hello Martin,

I hope the 30 watts refers to the power through some speakers and not
radiated. (Unless you are a ham or a first class operator.)

What frequency range are you interested in? What distance? What data rate?

Tom Mariner

> {Original Message removed}

1998\09\04@084630 by lilel

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> Hello Martin,
>
> I hope the 30 watts refers to the power through some speakers and
> not radiated. (Unless you are a ham or a first class operator.)
>
> What frequency range are you interested in? What distance? What data
> rate?


Yeah.  The FCC (the Men in CHeap Suits referred to by Bob BLick) will
REALLY climb down your throat fast, like next week.  I knew a guy in
high school who put together a pirate transmitter, and got a visit at
11:30 PM!

I used a cheap 1 watt transmitter kit to put a LEGAL radio station in
my dormitory.  I could transmit to the entire building, and about a
block around.  The transmitter lasted until I tried to soup it up to
2 watts (has my statute of limitations run out yet?)  I could
transmit 2 blocks, but it fried after an hour.

-- Lawrence Lile

    "The ideal design has zero parts"  -
           (attributed to Harold Hallikainen)

Download AutoCad blocks for electrical drafting at:
http://home1.gte.net/llile/index.htm

1998\09\04@093555 by Format

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30 watts for a small, legal FM radio station.

Diana Mariner wrote:

> Hello Martin,
>
> I hope the 30 watts refers to the power through some speakers and not
> radiated. (Unless you are a ham or a first class operator.)
>
> What frequency range are you interested in? What distance? What data rate?
>
> Tom Mariner
>
> > {Original Message removed}

1998\09\04@113810 by John Shreffler

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part 0 753 bytes
-----Original Message-----
From:   Format [SMTP:spam_OUTmartinTakeThisOuTspamIMCNET.NET]
Sent:   Friday, September 04, 1998 12:27 AM
To:     .....PICLISTKILLspamspam@spam@MITVMA.MIT.EDU
Subject:        [OT] FM transmitter

I would like to build a stereo 30-40 watt FM transmitter as a hobby
project. I would like to know if anyone knows about this, or where I
could parts and more information.

Thanks a lot.

--
<------------------------------------------------------->
< Martin Klingensmith, AKA Format.                      >
< Pyrotechnics - Mountain Bikes - Electronics - Coding  >
< Aquaria - Computers - Computer Selling - And the list >
< Keeps going, and going...                             >
<------------------------------------------------------->

1998\09\04@120726 by Format

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I know, I intend to be legal all the way, but I need to find out HOW first. I
can't find the FCC rules anywhere on the internet, including FCC.gov

John Shreffler wrote:

> If you put out that much power without appropriate
> licence, the approriate authorities would not consider
> your hobby in kindly light.
>

--
<------------------------------------------------------->
< Martin Klingensmith, AKA Format.                      >
< Pyrotechnics - Mountain Bikes - Electronics - Coding  >
< Aquaria - Computers - Computer Selling - And the list >
< Keeps going, and going...                             >
<------------------------------------------------------->

1998\09\04@141247 by Nigel Goodwin

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In message <35EF6C1E.2ECE332BspamKILLspamimcnet.net>, Format <.....martinKILLspamspam.....IMCNET.NET>
writes
>I would like to build a stereo 30-40 watt FM transmitter as a hobby
>project. I would like to know if anyone knows about this, or where I
>could parts and more information.

Try looking at 'http://www.broadcast-warehouse.com'
--

Nigel.

       /--------------------------------------------------------------\
       | Nigel Goodwin   | Internet : EraseMEnigelgspam_OUTspamTakeThisOuTlpilsley.demon.co.uk     |
       | Lower Pilsley   | Web Page : http://www.lpilsley.demon.co.uk |
       | Chesterfield    |                                            |
       | England         |                                            |
       \--------------------------------------------------------------/

1998\09\05@081802 by Tom Gretton

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Try http://www.fedworld.gov - It is the site for all U.S. Government publications
(...that have been electronically published...)

There is also a site for the Federal Register but I don't have the URL
handy...  something like http://www.nara???.gov



Tom

> -----Original Message-----
I can't find the FCC rules anywhere on the internet, including FCC.gov

1998\09\05@111958 by Bob Blick

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At 09:33 AM 9/4/98 -0400, you wrote:
>30 watts for a small, legal FM radio station.

Sorry, I thought it was for use in in the U.S., where there is no such thing.

FCC has been accused of being a tool of the National Association of
Broadcasters, because they stopped almost all low power stations back
around 1990 with a rule change that forbids anything under 100 watts.

To use anything in the transmitter chain, it would also need FCC type
approval.

Have you been following what's happening with Radio Free Berkeley?

-Bob

1998\09\05@124917 by Harold Hallikainen

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On Fri, 4 Sep 1998 12:03:32 -0400 Format <martinspamspam_OUTIMCNET.NET> writes:
>I know, I intend to be legal all the way, but I need to find out HOW
>first. I
>can't find the FCC rules anywhere on the internet, including FCC.gov
>


       Have a look at http://hallikainen.com/FccRules  .  Somewhere in
the first few parts (0, 1, or 2) are specifications for FCC approval of
equipment (certification, type acceptance, etc.).

Harold


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1998\09\05@151714 by Format

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No, what is Radio Free Berkeley?
I am sort of realizing now that a radio station isn't going to happen. I'm
thinking about HAM radio though.

Bob Blick wrote:

{Quote hidden}

--
<------------------------------------------------------->
< Martin Klingensmith, AKA Format.                      >
< Pyrotechnics - Mountain Bikes - Electronics - Coding  >
< Aquaria - Computers - Computer Selling - And the list >
< Keeps going, and going...                             >
<------------------------------------------------------->

1998\09\06@111201 by Harold Hallikainen

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On Sat, 5 Sep 1998 15:13:56 -0400 Format <@spam@martinKILLspamspamIMCNET.NET> writes:
>No, what is Radio Free Berkeley?
>I am sort of realizing now that a radio station isn't going to happen.
>I'm
>thinking about HAM radio though.
>


       For more info on Low Power FM, see http://hallikainen.com/lpfm .
Also, see http://hallikainen.com/FccRules for all the FCC rules.


Harold


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