Re: [Elecraft] KX3 RF Board

Hi Lance, The new RF board (revision F4) was phased into production around May of 2017. Here are the benefits: - slower temperature gradient and less T/R offset effect (both due to moving the Si570 away from the TX stages) - improved rejection of out of band QRM on 17/15/12/10 meters (new

[Elecraft] KX3 RF Board

Does anyone know at what Serial Number Elecraft upgraded the KX3 RF board to one with greater frequency stability? I am interested in finding one that is stable enough to use on 6m EME with Q65-60A mode. Thanks for any information! VY 73, Lance -- Lance Collister, W7GJ(ex WA3GPL, WA1JXN,