Hello,
I knew this title would grab some attention ;-)
Well, since my K1 worked so well, I decided to build a K2.
It took me 30 hours over three days. Everything works, but…
First, the receiver is pretty deaf on 20m. Not much static at all, faint
signals.
I plugged in my K1 on the same wire,
Gil - ATU on the K1 shouldn't make a difference.
Only thing that comes to mind other than proper alignment is it sounds like
a problem I had during construction of my K2. Post follows:
+
Date: Mon, 02 Jun 2003 13:22:31 -0400
To: elecraft at mailman.qth.net
From: Andrew Moore
Hello Gil,
The ATU in your K1 could be making the difference. It will or should
transform the impedance presented by the 33.5 ft wire and 13 ft counterpoise
to 50 ohms resistive, which is the source impedance which the K1's receiver
likes to see. The K2's receiver would also like to see a 50
Clarification - when I said the K1 ATU wouldn't make a difference, I mean
just as an installed option and wasn't considering it actually inline at
the time
--Andrew
On Thu, Aug 30, 2012 at 9:37 AM, Geoffrey Mackenzie-Kennedy lx...@pt.luwrote:
Hello Gil,
The ATU in your K1 could be making
Gil,
It is difficult to make a definite answer without some additional data.
Yes, the atu in the K1 could make some difference, but not an extreme
difference on receive.
The most likely guess is that you missed a solder connection somewhere
in the receive section of the K2. Go over the
Hello Andrew,
Thanks for the clarification, you had me wondering :-)
73,
Geoff
LX2AO
On August 30, 2012 at 4:03 PM, Andrew Moore wrote:
Clarification - when I said the K1 ATU wouldn't make a difference, I mean
just as an installed option and wasn't considering it actually inline at
the
Thank you everyone for your suggestions.
I did have one bad solder joint on TR7, fixed it by soldering one lead on top.
Maybe the problem is related to that.
Tuning L34 doesn't seem to do much of anything. There was no 3.3pf capacitor
for C22 on the RF board, but I had one 2.7pf left over after
Gil,
Hopefully you are not being confused by the amount of audio reserve.
The audio in the K2 is adequate, but limited, while the K1 has an LM386
audio driver followed by an LM380 amplifier and has lots of reserve audio.
It is difficult to tell what you are describing without some form of
PM
To: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] [K2] lack of sensitivity...?
Thank you everyone for your suggestions.
I did have one bad solder joint on TR7, fixed it by soldering one lead on
top. Maybe the problem is related to that.
Tuning L34 doesn't seem to do much of anything
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