Tim wrote:
> I'd like to limit the RIT range of my K-1 to about +- 500Hz.
>
> ow, it is about +- 3KHz.
Try Gerhard's suggestion in the 2005 posting below. He changed FP-R4
and FP-R5 both to 56k and got +/- 700 Hz RIT range for his K1. I
believe others tried 47k and got something closer to +/- 1 kHz.
Ignore the "C7 change" stuff in the posting.
Mike / KK5F
> Date: Fri, 4 Mar 2005 18:38:52 +0100
> From: "Gerhard Schwanz"
> Subject: [Elecraft] K1 RIT Mod!!!
>
> Hi again,
>
> I just soldered a bit. Changing C7 is not to my satisfaction as it also
> increased the tuning range considerably. So C2 or L1 would have to be
> adjusted too.
>
> After a more thorough search in the web I found out that changing R4 and R5
> on the FPB has the same effect on the RIT range but leaves the tuning (VFO)
> range as is.
>
> I changed the 10k resistors to 56k which gives me about +/- 700Hz RIT.
>
> I wonder why this simple method is not described in the manual... And I
> wonder why the side effect of changing C7 is not mentioned either.
>
> It would be nice to decide the RIT range during build time like the VFO
> range.
>
> Keep on building!
>
> Gerhard Schwanz
> DH3FAW
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