My K1 (SN # 301) is so uncomfortable to use that I generally leave the
attenuator on. Otherwise, the first keystroke of any character will
be too loud for comfort.
I would like to have better AGC on this otherwise great little rig.
Last comment, How can I get display illumination on my K1?
Evan, W5IQS
>From: Ron ZL1TW <[EMAIL PROTECTED]>
>To: [email protected]
>Subject: [Elecraft] K1 AGC action
>Date: Fri, 13 May 2005 20:52:56 +1200
>
>Hi,
> I have just pulled the old K1 out and blown the dust off it
>ready for a QRP Sprint coming up on 80m here this weekend, and while
>the set seems to work fine in most respects I can't help but wonder
>if I have a problem with the AGC.
>If I (say) call CQ and a strong station answers me, I get an
>enormous burst of tone from the calling station for the first letter
>he (she) sends, and then the AGC kicks in and everything is sweet
>again. ( until there is a pause in his/her sending)
> It has always done this since I built it some 4 years ago, and
>before I got the K2, I used to put up with it, but in hindsight, I
>have to wonder if it is "normal".??
>I realize the AGC is a pretty basic setup in the K1, but would be
>interested to know if I have a problem ? It sounds to me like the
>AGC is waiting for a capacitor to charge before controlling the gain
>of the mixers. I seem to recall there was a mod to make C31
>something like 1uf and having a resistance in series to speed up the
>AGC action, and I think that is in the set.
>I would be interested in comments from other K1 owners.........at
>the moment I think I will use the K2 @ 5w tomorrow, to save what I
>have left of my hearing.
>73.......Ron ZL1TW
>
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