Dave wrote:
Legally of course!
We received the "Whole House Transmitter" (
http://cgi.ebay.com/ws/eBayISAPI.dll...tegory=73 836
) it's ok for about 50ft 'cuz of the obstructions.
She likes it and now.. she wants me to transmit to the community pool so she
can hear "her tunes" (about 2/3's of a mile away).
I also have a small, 1 watt signal power booster(?) kit on order to boost
the signal and would like to design an antenna w/o too much height or too
noticable for this gizmo (deed restrictions!)

Dave



"Bob Miller" wrote in message
...
| On Sun, 01 May 2005 20:09:09 GMT, "Dave" wrote:
|
| What cheap house hold stuff could I use to build an FM broadcast antenna.
|
|
| Dave
|
|
|
|
| Radio Shack sells a wire folded dipole for FM for less than 5 dollars.
| You might also need an adaptor to convert the 300-ohm line to coax for
| your transmitter.
|
| Tack your dipole to a wall or board, and you're ready to
| transmit...legally, I presume.
|
| bob
| k5qwg


Hi, Dave -

According to FCC Part 15 regulations at

http://www.access.gpo.gov/nara/cfr/w...7cfr15_04.html ...

you are not allowed to modify your equipment. Specifically...

"Sec. 15.203 Antenna requirement.

An intentional radiator shall be designed to ensure that no antenna
other than that furnished by the responsible party shall be used with
the device. The use of a permanently attached antenna or of an antenna
that uses a unique coupling to the intentional radiator shall be
considered sufficient to comply with the provisions of this section."

Also...

"Sec. 15.239 Operation in the band 88-108 MHz.

(a) Emissions from the intentional radiator shall be confined within
a band 200 kHz wide centered on the operating frequency. The 200 kHz
band shall lie wholly within the frequency range of 88-108 MHz.
(b) The field strength of any emissions within the permitted 200 kHz
band shall not exceed 250 microvolts/meter at 3 meters."

So, if you add an amplifier, you will exceed the maximum field strength (by
a bunch).

Sorry to bring bad news.

Good luck.

John

John,

Thanks for that info didn't realize the complications / legalities...
Think it'll be ok if we just turn on the amp when she's at the pool and turn
it off when we're not?

I appreciate all the information given to me so far.

Dave


|
| Hi, Dave -
|
| According to FCC Part 15 regulations at
|
| http://www.access.gpo.gov/nara/cfr/w...7cfr15_04.html ...
|
| you are not allowed to modify your equipment. Specifically...
|
| "Sec. 15.203 Antenna requirement.
|
| An intentional radiator shall be designed to ensure that no antenna
| other than that furnished by the responsible party shall be used with
| the device. The use of a permanently attached antenna or of an antenna
| that uses a unique coupling to the intentional radiator shall be
| considered sufficient to comply with the provisions of this section."
|
| Also...
|
| "Sec. 15.239 Operation in the band 88-108 MHz.
|
| (a) Emissions from the intentional radiator shall be confined within
| a band 200 kHz wide centered on the operating frequency. The 200 kHz
| band shall lie wholly within the frequency range of 88-108 MHz.
| (b) The field strength of any emissions within the permitted 200 kHz
| band shall not exceed 250 microvolts/meter at 3 meters."
|
| So, if you add an amplifier, you will exceed the maximum field strength
(by
| a bunch).
|
| Sorry to bring bad news.
|
| Good luck.
|
| John
|

WOW!!!
I went to the link and read alot of stuff...

Guess the Wife isn't gonna enjoy our system at the pool after all. She'll
just have to be happy with the range the device has already!

Dave




Hi, Dave -
|
| According to FCC Part 15 regulations at
|
| http://www.access.gpo.gov/nara/cfr/w...7cfr15_04.html ...
|
| you are not allowed to modify your equipment. Specifically...
|
| "Sec. 15.203 Antenna requirement.
|
| An intentional radiator shall be designed to ensure that no antenna
| other than that furnished by the responsible party shall be used with
| the device. The use of a permanently attached antenna or of an antenna
| that uses a unique coupling to the intentional radiator shall be
| considered sufficient to comply with the provisions of this section."
|
| Also...
|
| "Sec. 15.239 Operation in the band 88-108 MHz.
|
| (a) Emissions from the intentional radiator shall be confined within
| a band 200 kHz wide centered on the operating frequency. The 200 kHz
| band shall lie wholly within the frequency range of 88-108 MHz.
| (b) The field strength of any emissions within the permitted 200 kHz
| band shall not exceed 250 microvolts/meter at 3 meters."
|
| So, if you add an amplifier, you will exceed the maximum field strength
(by
| a bunch).
|
| Sorry to bring bad news.
|
| Good luck.
|
| John
|

Locate the "device" in the attic? And, feed audio though a longer feedline?
grin

Regards,
John

"Dave" wrote in message
...
| WOW!!!
| I went to the link and read alot of stuff...
|
| Guess the Wife isn't gonna enjoy our system at the pool after all. She'll
| just have to be happy with the range the device has already!
|
| Dave
|
|
|
|
| Hi, Dave -
||
|| According to FCC Part 15 regulations at
||
|| http://www.access.gpo.gov/nara/cfr/w...7cfr15_04.html ...
||
|| you are not allowed to modify your equipment. Specifically...
||
|| "Sec. 15.203 Antenna requirement.
||
|| An intentional radiator shall be designed to ensure that no antenna
|| other than that furnished by the responsible party shall be used with
|| the device. The use of a permanently attached antenna or of an antenna
|| that uses a unique coupling to the intentional radiator shall be
|| considered sufficient to comply with the provisions of this section."
||
|| Also...
||
|| "Sec. 15.239 Operation in the band 88-108 MHz.
||
|| (a) Emissions from the intentional radiator shall be confined within
|| a band 200 kHz wide centered on the operating frequency. The 200 kHz
|| band shall lie wholly within the frequency range of 88-108 MHz.
|| (b) The field strength of any emissions within the permitted 200 kHz
|| band shall not exceed 250 microvolts/meter at 3 meters."
||
|| So, if you add an amplifier, you will exceed the maximum field strength
| (by
|| a bunch).
||
|| Sorry to bring bad news.
||
|| Good luck.
||
|| John
||
|
|