Posted by
Greg - AB7R on
Jun 07, 2007; 2:48pm
URL: http://elecraft.85.s1.nabble.com/K3-S-meter-calibration-redux-tp448734p448778.html
The good new Toby is that for folks who are strictly concerned about a "norm" is that you
can calibrate it to whatever norm you wish. I think that's the whole point here. Not
everyone is so concerned about an exact norm nor does everyone use their S-meter when giving
a signal report....I sure don't....to me it's how I hear the signal on the radio. If I need
to make a comparison between two or more signals then I might use the S-meter.
So don't fret...and adjust away to suit your needs.
73
Greg
AB7R
On Thu Jun 7 9:24 , Toby Deinhardt sent:
>> You guys are awesome! :D
>>
>>>> In addition to the slope of the function (dB per S-unit), is the
>>>> scale set point user-configurable? Or is this hard-coded such that
>>>> S9=50 uV?
>>>
>>> User settable.
>
>I'm not sure I really like this at all. S-meters are meaningless if they
>do not adhere to some kind of norm.
>
>The IARU Region I published a "norm" many years ago and, imho, it is a
>blemish on the face of the face of amateur community that this has not
>been implemented on a wide scale basis.
>
>It is beyond me how regulators can take interference reports based on
>s-meter values seriously. The s-meter is for many amateurs around the
>world, the only way they have of selectively measuring low level
>signals. One can not expect an affordable s-meter to be accurate to a
>tenth of a dB but plus/minus one or two dBs ought to be possible.
>
>vy 73 de toby
>
>PS: The IARU Region I recommendation:
>Page 156 in
http://www.iaru-r1.org/VHF_Handbook_V5_11.pdf>Page 142 in
http://www.iaru-r1.org/HFM%20Handbook%20V6.pdf>--
>DD5FZ, 4N6FZ (ex dj7mgq, dg5mgq, dd5fz)
>K2 #885, K2/100 #3248
>K3/100 #??? (
>DOK C12, BCC, DL-QRP-AG
>_______________________________________________
>Elecraft mailing list
>Post to:
[hidden email]
>You must be a subscriber to post to the list.
>Subscriber Info (Addr. Change, sub, unsub etc.):
>
http://mailman.qth.net/mailman/listinfo/elecraft
>
>Help:
http://mailman.qth.net/subscribers.htm>Elecraft web page:
http://www.elecraft.com_______________________________________________
Elecraft mailing list
Post to:
[hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help:
http://mailman.qth.net/subscribers.htmElecraft web page:
http://www.elecraft.com