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 #??? (< #200)
DOK C12, BCC, DL-QRP-AG
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