K3 filter centering different behaviour from band to band

[ik1bxn]

Hi you all! I own a k3 since 3 days so probably what I'm writing should be a stupid question, sorry for this. It happens that in 20m band I can center (or better shift) filter from 400 Hz to 4000 Hz, in 15m and in 10m I can only between 1100 Hz to 4000 Hz. I'm sure I did some mistakes during these days playing because I think I'd expect same behaviour in any band isn't it ? .... but I can't find a way to properly correct my mistake and rollback. Many thanks in advance for patience to anyone will answer and help me or simply will read this message.73 de Giorgio

[ik1bxn]

Sorry I forgot telling it happens in Data Mode. 73 de Giorgio

[Dave Hachadorian]

Do you change bands by using the quick memories? If so, perhaps
you have stored different setups for each band by mistake.

Dave Hachadorian, K6LL
Yuma, AZ







--------------------------------------------------
From: "ik1bxn" <[hidden email]>
Sent: Sunday, October 03, 2010 10:48 AM
To: <[hidden email]>
Subject: Re: [Elecraft] K3 filter centering different behaviour
from band toband

>
> Sorry I forgot telling it happens in Data Mode. 73 de Giorgio
> --
> View this message in context:
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[ik1bxn]

Hi Dave, thanks for quick response. No, I change band via Cat command by using Ham Radio Deluxe, the suite I use for digi modes. Now tried to change band by using the k3 front button but it's the same:moving Shift knob I can't choose less than 1100 Hz in 15m and 10m. It's just from the HRD waterfall that I noticed the difference, in 20m I have a larger region to transmit (from 400 Hz to 2700 Hz or wider), in 15m and 10m I have power out only in the right half of the waterfall screen (from 1100 Hz to 2800 Hz).For that I tought I touched some Dsl setting in wrong way. It happend to me in the past something similar with a TS-480 but then I found out the correct setting to have quite all waterfall available for transmission (as it is on 20m with my k3).Tnx and 73 Giorgio

[Don Wilhelm-4]

  Giorgio,

Check your data mode for those bands, and if AFSK A, check the mark
frequency.
What you describe is normal when set to AFSK A with the mark frequency
set to 2125 Hz.
This is a per band setting, so yes you could have 20 meters set one way
and another way for 15m and 10m.

73,
Don W3FPR

On 10/3/2010 3:26 PM, ik1bxn wrote:

> Hi Dave, thanks for quick response. No, I change band via Cat command by
> using Ham Radio Deluxe, the suite I use for digi modes. Now tried to change
> band by using the k3 front button but it's the same:moving Shift knob I
> can't choose less than 1100 Hz in 15m and 10m. It's just from the HRD
> waterfall that I noticed the difference, in 20m I have a larger region to
> transmit (from 400 Hz to 2700 Hz or wider), in 15m and 10m I have power out
> only in the right half of the waterfall screen (from 1100 Hz to 2800 Hz).For
> that I tought I touched some Dsl setting in wrong way. It happend to me in
> the past something similar with a TS-480 but then I found out the correct
> setting to have quite all waterfall available for transmission (as it is on
> 20m with my k3).Tnx and 73 Giorgio

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[ik1bxn]

Bingo !!!!!!! It was that ! in 15m and 10m I had AFSK A instead of DATA A I had in 20m. Correct now it's is OK. Many many thanks to VE3KI Rich and VE3FPR Don for suggestion ! As I thought playing with the new toy like a children on Christmas morning I made different setup without thinking it's a per-band parameter , what a wonderful rig ! 73 , grazie ! Giorgio