Dale
See, there are limitations to both tracking and fixed modes.
1. Yes, in tracking mode you don’t lose your waterfall - BUT you lose your
averaging when you tune.
2. If you want averaging to stay on all the time - tuning or not, then you can
choose “fixed”, but then the limitation with that
John,
The P3 and PX3 use entirely different interfaces to the radio. The P3 taps into
the K3/K3S 8.2 MHz I.F., while the PX3 uses a baseband I/Q signal from the KX3.
While both methods provide the basic benefits of a panadapter, the P3's
implementation provides higher performance, using more
/elecraft@mailman.qth.net/msg183823.html
- [Elecraft] P3 vs SDR-IQ
http://www.mail-archive.com/elecraft@mailman.qth.net/msg183784.html
n1ix
-
- Re: [Elecraft] P3 vs SDR-IQ
http://www.mail-archive.com/elecraft@mailman.qth.net/msg183788.html Wes
(N7WS)
- Re
#183822
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- [Elecraft] P3 vs SDR-IQ
http://www.mail-archive.com/elecraft@mailman.qth.net/msg183784.html
n1ix
-
- Re: [Elecraft] P3 vs SDR-IQ
http://www.mail-archive.com/elecraft@mailman.qth.net
John,
It's true that in Fixed tune mode when you cross the boundary at either
end of the current span, the screen refreshes to the new span and you lose
your waterfall history. But in Tracking mode, don't you lose waterfall
history each time you tune?
Regarding your PX3, have you tried
I agree with Joe. My usage of the P3 and the PX3
is 100% fixed-tune mode, and I find both the P3
and PX3 to work very well for me. They do differ
in amplitude scale in A-B comparisons, but this is
compensated for by scale adjustments.
I've never really found a situation where Tracking
mode
On Fri,7/31/2015 6:08 AM, Joe Word wrote:
1. I am using Tracking mode and have Averaging set at 14. I want to see the
SSB pattern smoothly and not like an O'scope. I always slow the pattern
down to see clearly the transmitted bandwidth and treble/bass balance.
So your primary interest is the
Phil
So….you’re okay using “fixed tune” where your VFO window moves off-centre, and
heads off
towards the edge of the screen - at this point you can’t see whats ahead of you
because you’re
near the edge of the pan adapter. If you go any further, you fall off the edge,
and it plonks you back
It’s difficult to see a station, and find where you are trying to
tune to, when the display loses itsaveraging.
As a long time user of the P3, I strenuously disagree with that
assessment.
73,
... Joe, W4TV
On 2015-07-31 9:57 AM, John Kramer wrote:
Wayne
Apologies, I have never seen a
Wayne
Apologies, I have never seen a P3 in action before, I live too far away from
locations
that have regular hamfests. Maybe I should go and watch some youtube clips.
I just thought the basic architecture in the P3 would be the same as my
PX3.
But, reading your last two paragraphs, tells me
On Jul 31, 2015, at 9:51 AM, Jim Brown j...@audiosystemsgroup.com wrote:
What you want is not possible -- Averaging is working on the IF signal. We
can choose to always center it, or tune across it. When we tune in Tracking
Mode, it MUST begin averaging again.
Not quite impossible.
It
Eric
Thanks for that info, I would like to try that out - I must have missed that in
the manual….unless it was
incorporated in the new firmware, and I didn’t see it in the release notes.
Thanks for the heads up
73
John, ZS5J
On 31 Jul 2015, at 9:20 PM, Eric Swartz - WA6HHQ, Elecraft
Hello John,
Phil
Soâ¦.youâre okay using âfixed tuneâ where your VFO window moves
off-centre, and heads off
towards the edge of the screen - at this point you canât see whats ahead
of you because youâre
near the edge of the pan adapter. If you go any further, you fall off the
One minor note: There are three different P3 and PX3 fix mode tuning defaults
you can select in the menu for when you tune past the edge of the display:
slide, 1/2 screen and full screen jump.
I generally prefer the slide mode as it is less jarring and drags the window
incrementally in the
I think I know what Joe is getting at….and I agree with him, if I understand
him correctly. When he refers to “noise floor”
he means that he loses averaging when he tunes, resulting in the crazy spectrum
display (what Joe refers to as noise).
I haven’t seen or used a P3, but I bought my first
I would be interested in comments from Elecraft as to why the KX3/P3 differ
from
the products you list in the way averaging is handled.
73
Stewart G3RXQ
On Fri, 31 Jul 2015 10:13:25 +0200, John Kramer wrote:
I think I know what Joe is getting atand I agree with him, if I
understand
him
Has anyone compared the SDR-IQ as a panadapter with the P3?
I am using the SDR-IQ now but would like to be able to use my entire
computer screen for other displays during contests.
Dave N1IX
__
Elecraft mailing list
I have seen a couple in operation but do not personally own a P3. I do use an
SDR-IQ running SpectraVue on my K3 and have a second one to use with my new K3S
when it gets back from Elecraft rehab:-(
To me the P3 display is just too small. Apparently, many agree, hence the VGA
adapter. So
In my case my use of the panadapter in a contest is for
A. Finding a run frequency
B. Observing above and below when experiencing interference, plus A above
in deciding whether to get a different run frequency.
C. Catching all the active frequencies when search and pounce
None of these require
Yes, I have both. The SDR-IQ with SpectraVue remains off 95%
of the time while I use the P3 (without SVGA) for everything
else.
The P3 does not provide a second receiver (but I have the KRX3)
or the ability to QSY by clicking a mouse on the screen but I
haven't missed that capability.
The P3
Hi Joe - Do you have signal averaging turned on to reduce the noise floor? If
you do, it has to stop averaging when the freq is being changed while tuning,
temporarily raising the noise floor slightly. It then re-starts multi-pass
averaging once you stop tuning. This is normal for signal
.
73, Charlie k3ICH
-Original Message-
From: Elecraft
[mailto:elecraft-boun...@mailman.qth.net] On
Behalf Of Phil Wheeler
Sent: Thursday, July 30, 2015 9:06 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] P3 vs SDR-IQ
I've seen nothing like that here, Joe, in well
over a year
I've seen nothing like that here, Joe, in well
over a year of using the K3-P3 combo.
Something is amiss in your setup. Be sure to check
all cables since that is a common problem.
73, Phil W7OX
On 7/30/15 5:43 PM, Joe Word wrote:
I have been using a P3 with my K3 for the last two weeks and
It seems like it would be possible to keep the averages for the old part of the
spectrum and only start fresh in the new part. It would look odd for a bit, but
it would be great for the portion that was not disrupted.
wunder
K6WRU
CM87wj
http://observer.wunderwood.org/ (my blog)
On Jul 30,
I have been using a P3 with my K3 for the last two weeks and not happy with it's
operation. I set the parameters to what I like, the patterns look
good, but when
I tune the screen fills with noise and you can not see the signals up
and down the band.
I am told the SVGA option does the same thing.
On Thu,7/30/2015 5:43 PM, Joe Word wrote:
I have been using a P3 with my K3 for the last two weeks and not happy with
it's operation. I set the parameters to what I like, the patterns look good,
but when I tune the screen fills with noise and you can not see the signals up
and down the band.
Joe - I use Fixed Tune mode because I just like that display the best -
BUT I just checked Tracking Mode and I see about a half S unit noise when
I tune - I do not see any in Fixed Tune . UNLESS I look with the K3 on a
dummy load so no external antenna noise at all. Its visible there but
Joe,
Are you by some chance using your P3 with the FixTrack mode set to
Tracking mode rather than Fixed-tune mode? If so, WHY??? ;-)
I used PowerSDR with a FLEX-5000A for years and always hated that it ONLY
supported what Elecraft refers to as Tracking mode. Eventually, as
PowerSDR was
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