[BC] FCC rule question

[Kevin C. Kidd CSRE/AMD]

My first ND 302AM filing many years ago was held because I didn't
specify the base current past the decimal point.  The licensed power was
1kw, the base Z was exactly 40.0 ohms and hence the base current should
have been 5 amps.  I typed the current as 5. amps.  A staff member
called several days later telling me that perimeters must be specified
to 2 decimal places.  She allowed me to correct my mistake over the phone.

5.00 amps was acceptable.

Later,

On 2/12/2010 6:51 PM, Alan Gearing wrote:
> Jeff:
> 
> If you are referring to antenna pattern calculations the following applies:
> 
>     47 CFR §73.150 Directional Antenna Systems.
> 
>     (b)(6) The values used in specifying the parameters which describe
>     the array must be specified to no greater precision than can be
>     achieved with available monitoring equipment. Use of greater
>     precision raises a rebuttable presumption of instability of the
>     array. Following are acceptable values of precision; greater
>     precision may be used only upon showing that the monitoring
>     equipment to be installed gives accurate readings with the specified
>     precision.
> 
>     (b)(6)(i) Field Ratio: 3 significant figures.
> 

-- 
Kevin C. Kidd, CSRE/AMD
http://www.kkbc.com
http://www.amgroundsystems.com
Local:        931-766-2999