[Elecraft] Tx distortion
RALPH TURK
w7hsg at comcast.net
Sat Feb 2 16:53:32 EST 2019
Just a dumb question. Have you checked the DC to the K2 either battery or power suply.
Ralph S. Turk, W7HSG
520-444-6610
> On February 2, 2019 at 1:28 PM mustang65 <septemberbarn58 at gmail.com> wrote:
>
>
> Thanks for answers.
> The symetrix output impedance is 200 ohm and it is recommended to not load
> it
> lower then 600 ohms.
> I lifted the plus side of c20 and connected a 10k resistor to ground.
> I connected the signal from the symetrix output to the plus side of c20.
> This way the signal comes direct to ne602 and u3 is not involved.
>
> The distortion is still the same and no difference what signallevel
> I put out from the symetrix. from a very low level until a 3 bars of
> alc reading. I am still listening to the Lf signal from the symetrix just to
> be shure
> it is no clipping from the unit.
>
> I know this is not the way to drive the k2 just trying to find a way to see
> if U3 is the problem.
>
> The microphone I drive the symetrix is a shure sm58 and I also
> use a icom hm12 that i put direct in to the K2.
> The first 6 years I used the Icom microphone then the last 8
> years I used the symetrix and Shure sm58 that improved the audio.
>
> 73 Mike sm3xgm
>
>
>
>
>
> --
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