SARK-110
User’s Manual
Rev 1.2.19 January 12
th
, 2020
- 36 -
© Melchor Varela
– EA4FRB 2011-2020
The
«Smoothing»
filter is a moving average calculation for each measurement point of the
unweighted mean of the previous measurement points. The measurement speed is not affected
but there could be a loss of accuracy.
➢
The magnitude of the peak or valley of a rapidly changing parameter may be
affected. Check the results with and without the filter if there is any doubt.
Setup
– Sampling
This setup permits a choice of the number of measurement samples from three options:
«Normal / fast»
,
«Double / slow»
and
«Normal / low resolution»
. The
«Normal / fast»
option is
the default setting and provides a good balance between accuracy and measurement speed.
The
«Double / slow»
option is intended for enhanced accuracy measurements, because it
reduces measurement ripple by doubling the number of samples taken, but at the expense of a
slower sweep speed. This enhancement of the measurements is more noticeable when using
automatic scales for measurement over a small range of values. The
«Normal / low resolution»
option is equivalent to
«Normal / fast»
option, but the sweep speed is faster because the
number of measurement points is reduced by half.
As of firmware version v0.9.7, this setup permits the following sampling modes:
«Normal»
,
«Half
(Fast)» and
«Double (Slow)»
. There is a separate menu to configure the resolution options.
Setup
– Resolution
As of firmware version v0.9.7, the resolution options can be set independently of the sampling
options. The available options are:
«Normal», «1/2», «1/4»
and
«1/8».
Setup
– Buzzer
This setup enables control of the analyzer
’s sounds.
Select
«Enabled»
to enable all the sounds. Select
«Disable Key Click»
to deactivate the
feedback click sound when pressing the buttons or the navigation keys. Alert and error sounds
will continue to be enabled. Select
«Disable All»
for an all-silent operation.