Looking at the Orion's manual, it says >40DB below 5 W. The rules say >43 DB
at any power. This means that a new Orion could be ilegal after June 1.
Maybe we better stick with pre 1977 rigs such as the Eico 753 and Knight
T150. They had spurs stronger than the fundamental.
Steve
N4LQ
----- Original Message -----
From: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>
To: <tentec@contesting.com>
Sent: Sunday, May 09, 2004 3:58 AM
Subject: [TenTec] New emission standards for HF...ham rigs not BPL
> Am I the only one to find some irony in FCC being concerned about
> spurious emissions from ham HF rigs, but wanting to pollute HF with
> BPL?
>
> rob/K5UJ
>
>
> >From ARRL Letter, V. 23, no. 19:
>
> The most extensive and substantive rule change involves §97.307, Emission
> standards, where the FCC revised the wording of §97.307(d), which defines
> spurious emissions. The updated language imposes a slightly higher
> standard on newer transmitters or amplifiers of any power level. Starting
> June 1, the rule will provide that:
>
> * the mean power of any spurious emission from HF transmitters or
> external RF power amplifiers installed after January 1, 2003, must be at
> least 43 dB below the mean power of the fundamental emission.
>
> * the mean power of any spurious emission from HF transmitters or
> external RF power amplifiers installed on or before January 1, 2003, must
> not exceed 50 mW and must be at least 40 dB below the mean power of the
> fundamental emission. If the mean power output of such as transmitter is
> less than 5 W, the attenuation must be at least 30 dB.
>
> Still exempt from the provisions of §97.307(d) are transmitters built
> before April 15, 1977, or those first marketed before January 1, 1978.
>
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