[Elecraft] KX3 as an antenna analyser

[Lewis Hunter]

When setting up a wire I often switch my KX3 to FM mode, hit the TX button,
turn the VFO while looking at the meter to find the lowest SWR so I can
adjust the wire. This is very handy indeed. However sometimes the antenna
is resonant outside the permitted transmit frequencies. So I ask is there
any possible way to make the KX3 function as an antenna analyser so I can
tune the antenna out of band. Or future plan to do so through firmware
updates?

Lewis