[1000mp] Re: ARRL testing of Clicks

Jan Erik Holm [email protected]
Thu, 04 Jul 2002 16:02:58 +0200


During every major contest (let�s say CQWW CW), when the band is
wide open to USA there a clicks from USA stations to be heard at
least 10 kHz outside the ham bands (i e 20990 - 21000).
Now, according to FCC rules this is not allowed (see below), why
doesn�t the FCC start to crack down on the offenders?

73 Jim SM2EKM

PS: I know this is a worlwide problem but since FCC actually stipulates
what they do in their rules I use the USA hams in this example.
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Tom Rauch wrote:

>>Somehow, I think I would like to have some definition of 'good' be
>>discussed and more or less agreed upon. It would be nice if there is
>>some existing rig that is classified as 'good'. 
>>
>
>Good is a word that should be avoided, because it is an emotional 
>concept and will vary from person to person.
>
>For example? 
>
>If I worked 20 meters, operated when the band was not crowded, used 
>small antennas, worked mostly modest strength signals, and had 
>considerable site noise....almost any rig would be "good" to me.
>
>On the other hand if worked 80 meters, had low site noise, big 
>antennas, and operated when the band was crowded while trying to work 
>weak signals life would be hell with the earlier example of "good".
>
>This is an everyday fact of life, and one of the reasons why people 
>disagree about the quality of rigs.
>
>The FCC rules say we are NOT allowed to cause harmful interference 
>from modulation products or clicks on adjacent frequencies, or have 
>those products extend outside the band segment authorized for those 
>emissions with our license class. They do NOT give a dB down, but 
>simply require our radios do not click and bother people on adjacent 
>frequencies.
>
>Using that definition, I think -60dB at 500 Hz would be "acceptable" 
>for CW, unless you are willing to move or shut down when someone near 
>you is working a weak signal.
>
>73, Tom W8JI
>[email protected] 
>