[BC] Part 15 radiation Limits...

[Burt I. Weiner]

Here's the rest of it;

Subpart C -- Intentional Radiators - 
?15.209   Radiated emission limits; general requirements.

(a) Except as provided elsewhere in this subpart, 
the emissions from an intentional radiator shall 
not exceed the field strength levels specified in the following table:

------------------------------------------------------------------------
                                                              Measurement
          Frequency (MHz)                Field strength         distance
                                       (microvolts/meter)       (meters)
------------------------------------------------------------------------
0.009-0.490......................  2400/F(kHz)                      300
0.490-1.705......................  24000/F(kHz)                      30
1.705-30.0.......................  30                                30
30-88............................  100 **                             3
88-216...........................  150 **                             3
216-960..........................  200 **                             3
Above 960........................  500                                3
------------------------------------------------------------------------
** Except as provided in paragraph (g), fundamental emissions from
   intentional radiators operating under this section shall not be
   located in the frequency bands 54-72 MHz, 76-88 MHz, 174-216 MHz or
   470-806 MHz. However, operation within these frequency bands is
   permItted under other sections of this part, e.g., ?? 15.231
   and 15.241.

Burt

At 02:16 PM 2/4/2006, you wrote:
>From: "Rev. Robert P. Chrysafis" <kc8gpd at hotmail.com>
>Subject: Re: [BC] AM Radio Kit
>To: "Broadcasters' Mailing List" <broadcast at radiolists.net>
>Message-ID: <BAY103-DAV13F27B6188BA7A61A5B068C0C0 at phx.gbl>
>Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>         reply-type=original
>
>  Subpart C -- Intentional Radiators - ?15.219   Operation in the band
>510-1705 kHz.
>
>       (a) The total input power to the final radio frequency stage
>(exclusive of filament or heater power) shall not exceed 100 milliwatts.
>
>       (b) The total length of the transmission line, antenna and ground lead
>(if used) shall not exceed 3 meters.
>
>       (c) All emissions below 510 kHz or above 1705 kHz shall be attenuated
>at least 20 dB below the level of the unmodulated carrier. Determination of
>compliance with the 20 dB attenuation specification may be based on
>measurements at the intentional radiator's antenna output terminal unless
>the intentional radiator uses a permanently attached antenna, in which case
>compliance shall be demonstrated by measuring the radiated emissions.
>
>Authority: 47 U.S.C. 154, 302, 303, 304, 307, 336, and 544A.
>
>Source: 54 FR 17714, Apr. 25, 1989, unless otherwise noted.

Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California  U.S.A.
biwa at earthlink.net
K6OQK