On Fri, 07 Apr 2006 23:36:50 -0400, wrote in
:

On Fri, 07 Apr 2006 21:43:41 -0400, Scott in Baltimore
wrote:

If you wish to "broadcast" outside of what is allowed in part 97, you
need to operate under some other part of the FCC's regulations if you
insist on going the RF route.

Perhaps a CB or Part 15 would suit you!

Serious question:

Just how much power is the maximum permitted level of
250 uV/m at 3 meters for non-licensed devices?

(FM broadcast band?) See this NAL for reference:
http://www.fcc.gov/eb/FieldNotices/2...-264733A1.html

Correction ....... 0.01875 microwatts for 88-108 mhz fm


That's assuming an isotropic antenna under ideal conditions..... and
missing a critical part of the formula: the characteristic impedance
of free space is 120 * pi (377) ohms, not 120 ohms. You left out pi.

Try again.

On Fri, 07 Apr 2006 21:45:30 -0700, Frank Gilliland
wrote in
:

snip
Try again.


.....oops, I left out pi myself in calculating the surface area of the
sphere. Oh well.