[Elecraft] K3 "hum" problem - not the usual? [Try CONFIG:AFSK TX = FIL ON]

[Brian Machesney]

Wayne,

Thanks for that suggestion - it worked!! One starts to wonder if there is
any thing that this radio can't do!

73 -- Brian -- K1LI

On Mon, Sep 28, 2009 at 5:58 PM, Wayne Burdick <n6kr at elecraft.com> wrote:

> The K3 has a CONFIG menu entry called "AFSK TX". If you set it to "FIL
> ON", a 400-Hz transmit-mode audio filter is inserted, centered around
> the mark/space tones. This is only available when the rig is set for
> AFSK A mode. It should be effective against low-frequency hum coming
> in through the mic or LINE IN connectors.
>
> 73,
> Wayne
> N6KR
>