[Lowfer] Hifer change?
Ed Phillips
[email protected]
Fri, 12 Sep 2003 09:50:16 -0700
John Andrews wrote:
>
> As I understand it, the FCC has increased the limits in the 13 MHz ISM band
> to accomodate RF Tag manufacturers. The part that affects Hifers is:
>
> (a) The field strength of any emissions within the band 13.553-13.567 MHz
> shall not exceed 15,848 microvolts/meter at 30 meters.
>
> That's up from the present 10,000 uv/m at 30 meters. Since all boats rise
> with the tide, we get the benefit. The effective date will be 120 days after
> posting in the Federal Register, and I'm not sure if that has happened yet.
> Watch the LWCA site:
> http://lwca.org/ for information about the effective date.
>
> John Andrews, W1TAG
That seems like an awfully awkward way to state that they're upping the
limit by EXACTLY 2 dB. Why not 16,000? Silly and probably represents
some bureaucrat converting with a ridiculous number of significant
figures similar to what we now see with English/metric and
metric/English conversions. One I see frequently in IEEE publications
is a reference to a "5.08cm x 1010.16cm" bar, which was probably a
reference to aq "2x4" which hasn't been 2" x 4" in recorded memory!
Stupid editors probably prevail these days. (I'm fighting with one now,
hence the harangue.)
Ed