Hallo Ralf!
Yes.
The measurements are taken post-filter and post-AGC.
73,
Lyle KK7P
Hi Lyle,
So I actually measure a quantity that is proportional to the energy (signal + noise) that
has been collected in the display update time, am I getting this right?
Greetings
Ralf, DL6OAP
Am
Hi,
I have been playing around with the dBV-Feature of my KX3 for some time. I
understood how to use it and that it measures a relative input level into
the AF stage of the KX3, but my question is if there is any kind of data
processing involved, in other words: the display is updated roughly
The DSP uses audio samples at a 12 kHz rate and performs a true RMS calculation
on the samples. The result is computed over the display update time (1
second?) the buffer flushed and the process repeated..
73,
Lyle KK7P
... but am not sure, if I can
compare the values directly, since I do
Hi Lyle,
So I actually measure a quantity that is proportional to the energy (signal +
noise) that has been collected in the display update time, am I getting this
right?
Greetings
Ralf, DL6OAP
Am 20.10.2014 um 14:31 schrieb Lyle
The DSP uses audio samples at a 12 kHz rate and performs a
Hi Ralf,
Lyle explained how the dBV value is derived. It's a pretty useful
measurement.
One way to use it is to disable AGC, then measure different signal
levels. This makes dBV a linear measurement, up until the signal
level causes hardware AGC to activate.
Be cautious with your hearing
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