Hi Geoff
Lets hope the regulators do act. As you say anyone who needs convincing just
needs to tune the 40 meter band. Now that we have SDR receivers the mess is
plain as daylight.
Most of the objections to out of band emissions assume that these regulations
are very onerous, they are not. The IMD requirements are modest, all that it
required is proper attention be payed to TX design details. I am hopeful that
the regulators will bite the bullet and act soon.
73
John
--- On Fri, 4/16/10, Geoffrey Mackenzie-Kennedy <gm4...@btinternet.com> wrote:
> From: Geoffrey Mackenzie-Kennedy <gm4...@btinternet.com>
> Subject: Re: [Elecraft] Ten Tec never sounded so good!
> To: "juergen" <plebia...@yahoo.com>
> Cc: "Elecraft Discussion List" <elecraft@mailman.qth.net>
> Date: Friday, April 16, 2010, 7:06 AM
> Hi John,
>
> There is a real risk IMHO that the Regulators, in Region 1
> anyway, will act and impose tighter requirements on Amateur
> Tx IMD levels ( and spurii) if we hams do not win this
> battle - and push for *much* cleaner transmitters. The
> Regulators by and large are not really concerned if we hams
> interfere with each other, but are rightly concerned should
> we interfere with any non-Amateur Service, in particular
> those using an adjacent frequency allocation.
>
> In Europe the problem is easy to see on 40m, where too
> often somebody operating LSB will snuggle up to the top edge
> of our allocation at 7200 kHz, and transmit high level IMD
> products out of band.
>
> 73,
> Geoff
> GM4ESD
>
>
> On Friday, April 16, 2010, at12:58 AM, John "juergen"
> <plebia...@yahoo.com>
> wrote:
>
> > Without people like yourself who highlight these
> problems we not going to win the battle with these cheap
> garbage amps being used on the ham bands.
>
>
>
>
>
>
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