I am using an unmodified #705 K3 with the AM filter only. Using amplified
computer speakers with RF filtering. The AM BCB/SW sounds as good or better
than any I have around the house including an old Hallicrafter SX-100 and
two Yaesu's. Better than car AM also. Maybe the problem on some units co
I haven't noticed any "clicking" either.
As to selective fading, it sure would be a good thing if the AM sync
detector were high on the priority list. I hate it that my manual
continues to be so out of touch. Or maybe I'm the only K3 owner who
is not a CW Contester or operator of PSK31/RA
Re the AM quality question I can't detect any "clicking" or other distortion
but then there are no high quality AM BC transmissions round here - they're
messed up either with selective fading or because the transmission comes
from more than one location on the same frequency.
The noise in between
Regards,
Wes
--- On Mon, 2/2/09, Bill W4ZV wrote:
> From: Bill W4ZV
> Subject: Re: [Elecraft] K3 AM reception
> To: elecraft@mailman.qth.net
> Date: Monday, February 2, 2009, 10:01 AM
> Wes Stewart wrote:
> >
> > Following are links to plots that demonstrate some of
>
Wes Stewart wrote:
>
> For the second plot, *nothing* has been changed except the AGC button was
> toggled to "Fast."
>
> http://k6mhe.com/n7ws/K3_AGC_Fast.jpg
>
Very interesting - looks like an 80hz signal from somewhere is mixing with
the fundamental.
73,
Barry N1EU
--
View this message
Wes Stewart wrote:
>
> Following are links to plots that demonstrate some of the "fun" I'm
> having. The first two are taken using Spectrum Lab to look at the Line
> Out audio signal from the K3. The input signal is from a homebrew 28.7
> MHz crystal oscillator/buffer with about a -70 dBm out
--- On Sun, 2/1/09, Jim Garland <4cx2...@muohio.edu wrote:
> I've been reading a thread on another email reflector about the K3's audio
> response on AM. One of the reflector participants is a serious SWBC listener
> and is very dissatisfied with his K3's AM audio. He has pointed out a few
> th
My K3 sounds great on BCB/SW AM reception - in fact I'm listening to it
right now. I have the FM filter and the DSP BW cranked up to the maximum.
It reads 10 KHz, but I am using far from the latest version of firmware.
I'm using the West Mountain Comspkrs on the rear speaker jack. They are
power
the
the audio DSP limits are FC<=2.20, HI<=4.20.
73,
... Joe, W4TV
> -Original Message-
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Garland
> Sent: Sunday, February 01, 2009 10:08 AM
> To: elecraft@mailman.qt
;s performance on AM.
73,
Bob W5OV
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Garland
Sent: Sunday, February 01, 2009 9:08 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 AM reception
I've been reading
I've been reading a thread on another email reflector about the K3's audio
response on AM. One of the reflector participants is a serious SWBC listener
and is very dissatisfied with his K3's AM audio. He has pointed out a few
things about the K3 AM response which puzzle me. Here they are:
"My K3 s
> Seriously, we'll investigate further to see what can be done about this.
> But in the meantime, please understand that only huge signals exhibit the
> symptom, and then only if you are not tuned to the station's carrier
> frequency.
>
> 73,
>
> Lyle KK7P
>
Wow, Lyle! It sounds like with
I have run a number of tests on my K3 regarding low-level "BFO-like"
whistles reported during AM reception.
Signals less than -16 dBm (57 dB over S9) do not exhibit this behavior,
but signals above this strength do.
For the time being, if you are listening to an AM station that is this
huge,
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