k...@aol.com wrote:
In a message dated 3/16/2009 11:57:22 A.M. Eastern Daylight Time,
steven.zabarn...@notes.udayton.edu writes:
I had the same reaction upon first using my new K3 last year. The K3 is
significantly more sensitive than my previous rig (IC-756 non-Pro), and as
I
Did you experiment with AGC threshold? It may be very low in your case. Then
K3 has high amplification even for very weak signals.
Ignacy
Don Rasmussen wrote:
Guys,
My new K3 #2308 shows two to three S-units high as compared to my other HF
radios, and lots of hiss in the speaker
Don:
I had the same reaction upon first using my new K3 last year. The K3 is
significantly more sensitive than my previous rig (IC-756 non-Pro), and as
my noise environment is fairly high (inner suburb with ~110 dBm background
noise), at first it seemed as if the K3 is fairly noisy. Also, while
Yes, it is a hot receiver. I usually have the RF gain turned to about 50%
- just a little above the band noise. You can be more aggressive on PSK and
weak signal CW as it is possible to copy signals below (but not much below)
the band noise.
Also, the K3 was designed to have excellent
Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of k...@aol.com
Sent: Monday, March 16, 2009 12:16 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Hot K3
Yes, it is a hot receiver. I usually have the RF gain turned to about
50%
- just
is wrong.
If there is a firmware setting or a hardware pot that
adjusts the signal amplification level I'll need to reduce this.
Hopefully, it is not a component out of spec that's
causing this, but this may be the case.
[Elecraft] Hot K3
Don:
I had the same reaction upon first using my new K3
Hello Don,
I do have a similar effect except that my first and second radio is a K3
(SN-0812 and SN-2185).
- Same power-supply at the same time radio's ON
- both on 50 Ohm dummy load
- same roofing filter (2.7 Kc)
- same filter gain (0 dB)
- same DSP setting (Bw = 3.0 Kc / Fctr = 1.5 Kc)
-
: Monday, March 16, 2009 20:24
To: ev...@pa2kw.com
Subject: Re: [Elecraft] Hot K3
You didn't mention ATT and PRE. I have found that sometimes when I reset my
K3 it goes back to settings that turned one or the other on without my being
aware of it.
73,
Dave AB7E
Evert Bakker (PA2KW) wrote
but in this case maybe we have stumble upon something they don't know.
Cheers,
Don
--- On Mon, 3/16/09, Evert Bakker (PA2KW) ev...@pa2kw.com wrote:
From: Evert Bakker (PA2KW) ev...@pa2kw.com
Subject: RE: [Elecraft] Hot K3
To: 'Don Rasmussen' wb8...@yahoo.com
Cc: 'Elecraft Discussion List' elecraft
Hi all,
I, too. think that with the current firmware the AGC threshold even when
adjusted to its maximum is too low, making the receiver excessively hot on
all bands except 10m. Way back, a firmware change was made that lowered the
AGC threshold by 10dB. I thought it was more appropriate prior
Just to provide a counter-example
I almost never back the RF GAIN control down on my K3. It has huge
dynamic range. Unless I'm besieged by multiple S9+30 or greater signals
within the crystal filter passband, I don't find it necessary. (Note:
We're getting close to a new firmware release
would not affect the S-meter.
All that having been said, if Wayne does not think the gain margin is a
problem, I am relieved, happy, and suprised at not having to send the new radio
in for repair.
[Elecraft] Hot K3 [comments and suggestions]
wayne burdick n6kr at elecraft.com
Mon Mar 16 18
Don,
There's something fundamentally different between your K3s if you have
to do this to get them to have about the same gain. Typically different
radios track to within 0-3 dB.
Please contact k3support so Gary can help you work through the
possibilities.
tnx
Wayne
N6KR
On Mar 16, 2009, at
Guys,
My new K3 #2308 shows two to three S-units high as compared to my other HF
radios, and lots of hiss in the speaker audio at low AF levels. It acts as if I
had maxed out the value for the crystal filter gain in the firmware, or had the
PreAmp on. I have made sure the gain is at zero and
-160.
CC Packet Cluster W0MU-1
W0MU.NET or 67.40.148.194
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Rasmussen
Sent: Sunday, March 15, 2009 9:05 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Hot K3
Guys
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