[Elecraft] KX3 Calibrating KXFL3 Roofing Filter

[Julia Tuttle]

Hi Steve,

There's a "tech mode" you need to turn on to access some of the menu
options -- I think it's "TECH MD" in the menu but I could be mistaken.

73,

Julie

On Mon, Jun 2, 2025, 19:42 Steven Davidson <k3fzt at sjdmd.com> wrote:

> The radio is new to me from an SK estate. FW was at 2.12 I've updated to
> most current MCU and DSP.
>
> Page 8 of the instructions calls for setting "RX Shift" which does not
> appear on the menu even after the FW upgrade to 3.02/1.52. Similarly "SMTR
> MD" does not appear in the menu.
>
> Page 10 calls for setting the "RXSBNUL" which does not appear in the menu.
>
> The radio is serial number 6631 so judging from that and the firmware it
> came with it's from about 2014.
>
> How do I calibrate and use the roofing filters?
>
> 73 de K3FZT / Steve
> --
> Steve Davidson K3FZT
> Winlink Gateway K3FZT-10 at 145.67mHz direct or via W3EOC-3
> WIRES-X Room #85218 "MARC-DARBY" 444.050 mHz
> K3FZT at sjdmd.com FN20ja
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