Jack,
VFWD and VRFL are values straight out of the analog to digital
conversion of forward power and reflected power measured by the coupler.
The value can range from 0 to 4096. See the KAT500 Command Reference.
Those values are used by the firmware to compute the SWR. I do not know
the conversion factors (and don't really care since the firmware does
the computation).
The VFWD will be relative to the measured power output and the
difference between VFWD and VRFL will be relative to the SWR - in other
words, a low VRFL is goodness representing low reflected power.
73,
Don W3FPR
On 1/23/2017 11:15 AM, w4grj wrote:
Recently noticed on the KAT500 remote interface on the PC, lower right corner
shows VFWD and VRFL, when I run winlink express with radio at 100 watts USB it
shows
VFWD:675 VRFL:50
Appreciate if someone can explain the numbers
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