Hello KC,
I cannot comment on the Japanese standard; I can comment on the FCC
regulations. The FCC does allow 40 dB/decade below 30 MHz; they also allow
a different roll-off established by measuring at 2 points along a radial.
The resultant may be different than 40 dB/decade, depending on the
Hello KC,
The attached message leads you a web site that discusses the 20 versus 40
dB/decade problem. ANSI/NIST may/should be doing a study.
Regards,
Ken Hall
-Original Message-
From: KC CHAN [PDD] [mailto:kcc...@hkpc.org]
Sent: Thursday, June 06, 2002 7:36 PM
To:
No one seems to be answering this, so I will take a stab at it. But this is
only technical aspects, not a policy response. At 13 MHz (11.5 m tuned
dipole) a real measurement antenna (one which draws power from the Poynting
vector impinging upon it) will not be measuring in the far field.
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