I have firmware 3.84 installed here. It's a beta. 73, Guy.
On Sat, Apr 3, 2010 at 9:51 PM, David Windisch davi...@cinci.rr.com wrote:
Hi, Trev:
Fw release is 3.84, which is a beta. Both of my K3's do this.
Brgds,
Dave, N3HE
- Original Message -
From: GW4IMC [via Elecraft]
More specifics:
Set vfo A to, eg, 14.000.00
Set vfo B to, eg, 14.050.00
Press AGC to set agc to S
Press VM
Dial desired memory number
Press VM to store
Press VM to load scan info
Press VM to confirm
Hold FREQ ENT to start scan
Press MV to stop scan
Press MV to re-load scan
Press MV to confirm
Sn28XX, F/w 3.84 but this syndrome has been an annoyance through releases
back afaicr.
Specifically, I set up memories 11-up to scan low 20-50 KHz of 160-10.
Mode: CW/REV, and I set AGC to S and save with VM.
Press MV, dial scan I want, press MV again, hold FREQ ENT for scan with
audio on.
There you go !! World top dxers are all switching to K3's.
AD4C
For a refined ham it is compulsory to own a k3
--- On Fri, 2/5/10, Philippe Trottet trot...@unhcr.org wrote:
From: Philippe Trottet trot...@unhcr.org
Subject: Re: [Elecraft] K3 AGC and Apparent Noise and Signal Distortion
Wes,
I agree that constant riding the RF Gain should not be necessary, But
on any one band, reducing the RF Gain to the point where the atmospheric
noise is not readily apparent does make a lot of sense to me. Set in
that way, one does not have to listen to a lot of band noise and the AGC
There were at least a few of us running LP and QRP who did OK with our K3's :
K1HTV, OH1VR/VP9, OK1FKD... and, at least, one future convert that I know
about.
Many of us little guns don't have the antenna advantages of the big
boys, both the K2 and K3 have been great equalizers in the rough and
Julius Fazekas n2wn wrote:
There were at least a few of us running LP and QRP who did OK with our
K3's
I wasn't trying to list every K3 in the contest...just those used in the Top
Ten of the two most competitive categories (Multi Op High Power and Single
Op High Power).
If you want to
Bill,
I would respectfully, and wholeheartedly, disagree with the most
competitive categories remark...
73,
Julius
-
Julius Fazekas
N2WN
Tennessee Contest Group
http://www.k4ro.net/tcg/index.html
Tennessee QSO Party
http://www.tnqp.org/
Elecraft K2/100 #4455
Elecraft K3/100 #366
10:14 AM
To: Wes Stewart
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 AGC and Apparent Noise and Signal Distortion
Wes,
I agree that constant riding the RF Gain should not be necessary, But
on any one band, reducing the RF Gain to the point where the atmospheric
noise is not readily
Interesting reading. I'm surprised none of these contesters got the memo
about how big guns would never buy a K3 because it didn't have 200W or 1,000
knobs on the front panel. I guess they haven't used the K3 enough to see the
inherent flaws...
/snark ;-)
Bill W4ZV wrote:
If you want to
Many thanks to Don Wilhelm and Jim Brown for what amounts to a tutorial
on using the K3 AGC settings given over the past few days. I found the
discussion very helpful and effective, and was enabled to attack my
settings purposefully, rather that using a shotgun, shoot in the dark
approach.
Now,
Bill W4ZV wrote:
If you want to see more detail of all K3s in the contest, I posted how to
do that below:
http://www.mail-archive.com/elecraft@mailman.qth.net/msg90719.html
This one was my favorite:
I'm asking Elecraft if they'll make an option for a Clix generator for
the K3.
out why they did
this.
AD4C
For a refined ham it is compulsory to own a k3
--- On Thu, 2/4/10, Paul - WW2PT ww...@arrl.net wrote:
From: Paul - WW2PT ww...@arrl.net
Subject: Re: [Elecraft] K3 AGC and Apparent Noise and Signal Distortion
To: elecraft@mailman.qth.net
Date: Thursday, February
Hi Paul,
ON4UN, one of the masters of low bands sold out his 2 x Orions almost two years
ago, replaced by 2 x K3's !!
It convincing me definitively to move from my Icom limousine to the K3 Indycar
!
Thanks to him, great rig and top after sale service. I'm proud today to be a
Elecrafter
Bst
I think you are wrong that this is not related to AGC Threshold. However, if
THR = 8 is not enough to raise the level of the threshold above the noise
you probably won't see a difference. The noise will still modulate the AGC
which makes the radio seem noisier, and weak signals will be reduced by
Hello folks
Just to follow up on this thread...listening to quite strong CW sigs
with Slow AGC setting is not too flash. I would guess sigs over
75 uV or so which is well into the 9+ region.
It is hard to exactly describe but sounds like the Hardware AGC
loop is pumping. It is fine on SSB or
Hello Paul,
Do you hear any raspy sound when listening to quite strong CW sigs - not
the sound of real band or thermal noise, but more like the sound of paper
being torn?
I should not be asking as I do not own a K3, but curiousity is killing this
cat!
73,
Geoff
GM4ESD
paulb
Julian, You could be right and I did not express myself well in my post. When
I said that the AGC threshold was ineffectual I did mean between THR = 2 and
8. Perhaps a solution would be to do as you suggest (with a few others) and
simply raise the available threshold settings in the CONFIG menu
Grant Youngman N5QT wrote:
Oh, good lord. This is ridiculous. The noise was so bad on my K3 i had
to go back to my S-38C with external Q-multiplier just to work the
contest ... and on and on.
With no personal affronts intended, perhaps just learning to use the radio
would help.
Bill W4ZV wrote:
The following links are also good learning resources with multiple
links/pages in each:
http://www.elecraft.com/K3/K3FAQ.htm
http://www.elecraft.com/K3/k3_operating_tips.htm
http://n1eu.com/ (click K3 link to the left)
Hi Lance,
Indeed, activating the attenuator does improve the situation quite a bit but
as I operate 20M and above for the most part I do not want to operate the K3
with ATT on all of the time.
I was going to ask.
Assuming that no ATT is not a religious thing, and engaging ATT
works, why NOT
On Wed, 2010-02-03 at 17:41 -0500, Guy Olinger K2AV wrote:
...
When the new N carrier systems came out and were being deployed, the
engineers were proud that they had created a quiet system (they had)
and would ease customer complaints about noise on the line. The
telephone company was
The same thing was done during the transition from mechanical analog switching
to electronic analog matrix and digital switching. All the clunks and thunks
that marked the progress of call connection largely disappeared with electronic
analog and digital switches. So the switch vendors added
I think you just did:-)
73,
Rick K7MW
I won't even mention
RTFM for fear of having to dodge bricks.
mode off.
73, Guy.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
20m ambient noise here on my C31XR at 76 feet is around 1 uV here for
SSB bandwidths, which IS engaging the AGC because it is S3.
Use ATT before you reduce RF gain, as it provides the best headroom in
the overall circuit.
With an MDS around -136 dBm and 1 uV being -107 dBm, the noise is
All I can say is that I love my K3 but maybe that's because I use it to
operate on the bands instead of performing all kinds of nit picking tests on
noise, AGC, NB and whatever else I can think of.
But maybe that's just me. 73 Bill NZ0T
--
View this message in context:
Lance,
The ATTenuator and Preamp settings are remembered per band.
So you can have it on for one band and off for another - no constant
button pushing.
73,
Don W3FPR
Lance Wilson wrote:
Indeed, activating the attenuator does improve the situation quite a bit but
as I operate 20M and above
Rob and I are in agreement on the AGC thing. I believe Wayne has said much the
same.
When high-end receivers had two pentode -r-f stages driving a pentagrid mixer
and barn door selectivity, it made sense to reduce the r-f gain.
IMHO, riding the r-f gain control (really i-f gain in the K3) in
I have started a new thread on this as there are multiple threads that are
difficult to keep track of.
Today a number of other hams have also reported noise, signal distortion
and other noise and signal issues that are a bit on the strange. The
discussion has been sidetracked by confusion on
Oh, good lord. This is ridiculous. The noise was so bad on my K3 i had to go
back to my S-38C with external Q-multiplier just to work the contest ... and
on and on.
With no personal affronts intended, perhaps just learning to use the radio
would help.
Grant/NQ5T
On Feb 2, 2010, at 7:20
I don't remember insulting anyone on this and I do know how to use my K3. if
you have something positive to contribute then please do so but spurious
comments do not help the issue. I have a problem with the AGC action in my
K3. If yours is fine then good for you.
--
View this message in
When I turn the AGC off, my audio sounds like the speaker cone is torn,
either the external speakers or phones. It's very difficult to describe.
I made a .wav file using Windows recorder, with the mic held in front to
my external speakers. It's a CW signal, with the 250Hz roofing filter.
It
Mike wrote:
When I turn the AGC off, my audio sounds like the speaker cone is torn,
either the external speakers or phones. It's very difficult to describe.
CONFIG: AF LIM is used to hard limit the audio level so you don't get
blasted by a strong signal when you have the gain cranked up to
AF LIM is set to 12. Shouldn't that be enough?
I wouldn't characterize the signal as strong. It doesn't make any
difference what the AF gain is, as long as it's loud enough to hear.
Even the beep when I turn AGC back on is raspy.
I'm not trying to be argumentative, just trying to get a handle
...@carolina.rr.com
- Original Message - From: Mike n...@nf4l.com
To: elecraft@mailman.qth.net
Sent: Sunday, January 10, 2010 10:25 AM
Subject: [Elecraft] K3 AGC usage question
When I turn the AGC off, my audio sounds like the speaker cone is torn,
either the external speakers or phones. It's
FWIW:
What I use on AGC varies from day to day and with varying conditions. Right
now my params are:
AGC DCY: Soft
AGC HLD: 0.73
AGC PLS: nor
AGC SLP: 014
AGC THR: 004
AGC - F: 140
AGC - S: 026
other params:
L - Mix - R: Ab b
AF LIM: 025
AF GAIN: LO
RX EQ:
1 : +3
Ken,
Answer 1: The slope number refers to the AGC action, and that is the
inverse of the audio response. If charts are helpful to you, Jack
Smith has measured and plotted the AGC response for the K3 - see
http://www.cliftonlaboratories.com/elecraft_k3_agc_and_s-meter.htm#AGC_SLP_and_AGC_THR
I also wondered about that. The slope of a line (the ratio of vertical
to horizontal displacement) is flatter for lower values. But in the K3
a smaller SLP value means a steeper AGC curve (the AF output changes
more for a given change in RF signal). SLP=0 really means least AGC
action, not
That certainly helps me a lot, I have been struggling with K3 AGC
settings and this helps a lot, I don't remember seeing this posted
before.
So thanks to Don for posting the link and many, many thanks to Jack
for making it clearer.
I just need to read that a few more times now.
73 de M0XDF,
-Alkuperäinen viesti-
Lähettäjä: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] Puolesta David
Ferrington, M0XDF
Lähetetty: 9. joulukuuta 2009 17:53
Vastaanottaja: elecraft@mailman.qth.net
Aihe: Re: [Elecraft] K3: AGC Adjustment
That certainly helps me a lot, I
Olli,
I don't think it is so difficult that one needs AGC for dummies. If
you want every signal to have about the same audio level, then set the
slope to a higher number, but if you want to hear that a strong signal
is louder than a weaker signal by ear (without looking at the S-meter),
then
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Ferrington,
M0XDF
Sent: 09 December 2009 15:53
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3: AGC Adjustment
That certainly helps me a lot, I have been struggling with K3 AGC
settings and this helps a lot, I don't remember seeing
Don Wilhelm wrote:
I don't think it is so difficult that one needs AGC for dummies. If
you want every signal to have about the same audio level, then set the
slope to a higher number, but if you want to hear that a strong signal
is louder than a weaker signal by ear (without looking at
Question 1: AGC SLP: The manual reads wrong to me in the discussion pp 53.
Wouldn't a slope of zero keep signals from going up in volume more so than a
slope of 10? I think of a higher slope meaning faster audio increase as
signals get stronger.
Question 2: Under what conditions do you
- Not Perfect
73
Arie PA3A
-Oorspronkelijk bericht-
Van: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] Namens Kenneth Waites
Verzonden: woensdag 9 december 2009 6:37
Aan: elecraft@mailman.qth.net
Onderwerp: [Elecraft] K3: AGC Adjustment
Question 1: AGC SLP
I was adjusting the LIN OUT level while running CW Skimmer this morning and
the volume from the K3 suddenly went very loud. When I checked, I found that
the AGC had been disabled.
Upon investigation there appears to be an issue with software polling the K3
while in the menu. I can almost
Julian, G4ILO wrote:
I was adjusting the LIN OUT level while running CW Skimmer this
morning and
the volume from the K3 suddenly went very loud. When I checked, I
found that
the AGC had been disabled.
Upon investigation there appears to be an issue with software
polling the K3
I thought I got this to happen once with CW Skimmer running on its
own. But I have left it running for quite a time now without a repeat
of the problem.
On 12/11/2009, Wayne Burdick n...@elecraft.com wrote:
I have not been able to duplicate this.
It's possible that one of the PC applications
Yes, I have noticed the same here,,
73,
e72x
--- On Thu, 11/12/09, Wayne Burdick n...@elecraft.com wrote:
From: Wayne Burdick n...@elecraft.com
Subject: Re: [Elecraft] K3: AGC turns itself off while in config menu
To: Julian, G4ILO julian.g4...@gmail.com
Cc: elecraft@mailman.qth.net
Date
I have the new firmware 3.03 with DSP 2.10
I am trying to adjust AGC parameters while in diversity receive mode, CW
AGC-F.
When I adjust AGC THR the sub receiver (left speaker in my set up) obviously
changes loudness (8 is maximum background noise, 2 is minimum), the main
receiver has no change
Mike, there's an AGC problem with DSP rev 2.10 that we didn't catch.
For now, set AGC DCY to SOFT. We hope to resolve this quickly.
tnx
Wayne
N6KR
On Mar 19, 2009, at 10:34 AM, Mike Scott wrote:
I have the new firmware 3.03 with DSP 2.10
I am trying to adjust AGC parameters while in
Hello Folks,
Just talking to a friend that has a K3 also and he was asking why the
signal gets louder with less noise when you turn off the AGC ? I turned
off tha agc when working a weak DX station, and he was right. Made the copy
easier and much louder. What is the technical reason for this?
: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of W2XB
Sent: Friday, March 06, 2009 7:43 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] [K3] AGC
Hello Folks,
Just talking to a friend that has a K3 also and he was asking why the
signal gets
-
-Original Message-
From: elecraft-boun...@...
[mailto:elecraft-boun...@...] On Behalf Of W2XB
Sent: Friday, March 06, 2009 7:43 AM
To: elecr...@...
Subject: [Elecraft] [K3] AGC
Hello Folks,
Just talking to a friend that has a K3 also and he was asking why the
signal gets
Don thanks for the following info. These settings really gets rid of the
noise
and signals are there. I changed my settings.
Ron NA9F
Don's stated AGC settings:
AGC PLS off
AGC SLP 002
AGC THR 008
AGC-F 140
AGC-S 010
I like my K3 AGC now - weak signals sound weaker than strong ones and
the
Don:
Your setting are so different from mine.
I tried yours, and now I have a brand new K3.
Thank you.
73, W1TF, K3 #696 , K1 # 1423, gets used once in a while.
--- On Fri, 3/6/09, Don Wilhelm w3...@embarqmail.com wrote:
From: Don Wilhelm w3...@embarqmail.com
Subject: Re: [Elecraft] [K3
I live in a noisy environment (typical S-7) and have in the past complained
about K3 audio. I was never sure what was going on but it just sounded rough
and unpleasant. The hardware audio modifications I think helped a little and
most certainly cleaned up the line-out IMD.
Mostly I operate CW
I have lots of noise as well and use a 80m vertically polarized loop. (The
best nearly
invisible antenna I could manage and keep the CCnR cops at bay.) Not being
a
contester and compete in the CW pile ups only when I'm one of a few, I've
found
Slow AGC at the fastest setting (40) to work the
I've had several requests for a printable or PDF copy of my web page on
the K3's AGC and S-Meter.
I've taken the text from the page and updated the graphics with higher
resolution versions (and also added a replacement computer-drawn version
(supplied by Tom, N0SS) of my hand sketched image)
While listening casually to the NA contest today, I noticed that the AGC
was behaving thusly:
In CW mode, the ACG is set to 'SLOW' (I prefer it that way). Firmware 2.72.
When receiving a relatively strong signal, the AGC seemed to be in 'FAST'
mode for the first 1-2 seconds, then in 'SLOW' mode
Hi Ralph and Elecrafters
I believe I am experiencing the same issue as you as regards slow AGC. What
happens with a strong CW station is that the s meter peaks then falls away
rapidly for the first few characters before settling down. Is this what you
are experiencing Ralph ?
Barry Simpson
You may want to try setting AGC PLS=OFF. I notice the same thing when
this setting is on. With this setting on, It appears to me that the AGC
pulse rejection will cause the AGC to react too quickly on some CW
elements .
73,
John, KD8K
Ralph Parker wrote:
While listening casually to the NA
I'm somewhat puzzled by the behavior of the AGC THR adjustment with respect
to band noise. My understanding is that the AGC THR setting adjusts the
level at which the AGC is activated. Thus, I would expect when listening to
band noise (QRN) that if the noise is activating the AGC, using a higher
Steve,
Yes, I know it sounds counter-intuitive, but if you establish the right
frame of mind, it does become clear.
You might want to consider that the audio level from the K3 is what is
heard after the AGC is applied.
If you set the threshold so low that the band noise activates the AGC,
The lowband season is well underway, and I'm
really enjoying it with my new K3. I'm enjoying
the low pitch CW capability (my current setting
is 320 Hz), and the 400 Hz 8-pole roofing filter
that I use most of the time.
In my rather noisy inner suburban location, I'm
using both the noise
All,
I would like to share the following experience on the AGC settings of
the K3.
Situation at my QTH:
There is an electric fence nearby my home that gives a pulse type of
noise.
The K3 handled that pretty well with the AGC PLS setting to ON.
Switching the AGC PLS to OFF gave me a lot of
Subject: [Elecraft] K3 AGC behaviour, in particular for pulse noise
All,
I would like to share the following experience on the AGC settings of
the K3.
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Can anyone recommend the best menu setting for max discrimination among
many callers at same time?
Start with Config menu: AGC SLP= 005 and then experiment with
different values. The lower the value (down to 0), the louder the
stronger signals will be. If you go too low, you risk
Can anyone recommend the best menu setting for max discrimination among many
callers at same time?
Start with Config menu: AGC SLP= 005 and then experiment with
different values. The lower the value (down to 0), the louder the
stronger signals will be. If you go too low, you risk overdriving
My K3 is back from factory and the AGC now works
better at handling pile ups where many callers formerly
were reduced to the same audio level. Now, it is
easier to pick out calls among many callers. Not
absolutely great, but better.
Can anyone recommend the best menu setting for
My K3 arrived Wednesday (SN 1378, assembled with 100W and 2nd receiver
option, ordered in late May 2007 and held until the 2nd receiver was
available, for those who keep track of such things.)
I've had a chance to look at a couple of items and have written two new
web pages with the results
Jack,
Thanks very much for the data on the K3 AGC Slope and Threshold. It is really
helpful to see the hard data on the performance of such important radio
characteristics. I wish all manufacturers would provide that kind of data on
their rigs and update it when new firmware is released. It
Tom said,
[snip]
Although I just started using the K3, I really like the AGC system so
far. That's in contrast to other digital AGC systems I quickly learned
to *dislike*. Low band DXers or contesting people will really like the
slope adjustment feature.
73 Tom
[end snip]
Wow...coming from Tom,
BACKGROUND
There has been a lot of confusion about AGC in the K3. Some of it is
AGC related, some of it is AGC interaction with noise reduction (NR).
A later email will address the noise reduction issue. For now, let';s
look at the AGC apart from NR.
---
WHY DID THE AGC CHANGE?
WHen we
Thanks for the explanation. As you say, noise levels differ between bands and
over time E.g. 80m in Summer compared to Winter or HF versus 50MHz and
higher bands via a transverter. Does the AGC setting apply per band or does
it cover all bands?
AGC also depends on mode, CW vs SSB bandwidths.
Thanks for the explanation. As you say, noise levels differ between bands and
over time E.g. 80m in Summer compared to Winter or HF versus 50MHz and
higher bands via a transverter. Does the AGC setting apply per band or does
it cover all bands?
AGC is AGC. It is not per band, it is per radio
*
AGC is AGC. It is not per band, it is per radio :-)
I do not know of a radio with per band AGC settings, or per season.
Most radios don't let you adjust the threshold or slope -- or the decay
rate of FAST and SLOW.
With the K3 we allow you to tailor the AGC; we
It is true that the AGC pertains to the radio and not the
band, but the optimal AGC threshold setting does vary by
band. On 80m, for example, I set the AGC threshold on my
Ten-Tec Orion at about 20uV. On 10m, where the noise level
is very low, I set it at 0.5uV. The Orion, incidentally, has
With the changes to AGC in latest firmware and all the discussions on
here, I feel this 'newbie' is loosing it!
Would someone care to post a prasie of how the AGC works and how K3
config settings affect it?
If this is of value, I'll put it on the Wiki. Alternatively, just put
it on the Wiki
DSP firmware 1.87 corrects two AGC problems occasionally resulting in
complaints of unexpectedly loud signals in an operator's headphones.
The first lowers the AGC threshold. It was inadvertently raised
sometime after release 1.47. It is now back to its original range.
The second corrects
What can be done with the AGC is simply marvelous. I have put the THR and the
SLP on the PF buttons for now.
BUT...
I can adjust these settings easily now for the band condition and the signal I
am listening to. However, I don't necessarily have a good feel at all for what
I have actually
OK, now that I'm slowly getting my station rebuild to the point where
I'm operating my K3 on a regular basis, I'm noticing that the AGC
seems to be kind of sub-optimal. There are large differences in audio
volume when receiving different strength signals. I have not been
directly comparing the
Have you tried adjusting the CONFIG:AGC SLP parameter? I've set mine
to the maximum value, 15, for flattest AGC slope.
Bob NW8L
On Mon, Jul 7, 2008 at 8:13 AM, S Sacco [EMAIL PROTECTED] wrote:
OK, now that I'm slowly getting my station rebuild to the point where
I'm operating my K3 on a
: Monday, July 07, 2008 7:18 AM
To: S Sacco
Cc: Elecraft Reflector
Subject: Re: [Elecraft] [K3] AGC
Have you tried adjusting the CONFIG:AGC SLP parameter? I've set mine
to the maximum value, 15, for flattest AGC slope.
Bob NW8L
On Mon, Jul 7, 2008 at 8:13 AM, S Sacco [EMAIL PROTECTED] wrote:
OK, now
: [Elecraft] [K3] AGC
I have the CONFIG: AGC SLP parameter set to 15 also and I think it is not
aggressive enough - that is, the volume difference is too large between
weak
and strong signals.
73, Bud N7CW
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Bob
... There are large differences in audio
volume when receiving different strength signals.
There are two AGC parameters that should help.
1) AGC THR
This sets the signal strength which must occur before AGC is activated.
It is defaulted to the several microvolts range. If you are
CONFIG:AGC THR 001
(default is 5)
Sorry, I just checked and I see 002 is the lowest allowed value in the
present firmware release.
73,
Lyle KK7P
___
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Sent: Monday, July 07, 2008 9:26 AM
Subject: RE: [Elecraft] [K3] AGC
I have the CONFIG: AGC SLP parameter set to 15 also and I think it is not
aggressive enough - that is, the volume difference is too large between
weak
and strong signals.
73, Bud N7CW
[snip]
At the setting
I have the CONFIG: AGC SLP parameter set to 15 also and I think it is not
aggressive enough - that is, the volume difference is too large
between weak and strong signals.
I just measured it. From a signal at the AGC threshold (-104 dBm if AGC
THR is set to 005) to a signal 100 dB stronger,
Thanks, Lyle -
I've made those changes, and will see how they work.
Appreciate the help!!
73,
Steve NN4X
On Mon, Jul 7, 2008 at 11:08 AM, Lyle Johnson [EMAIL PROTECTED] wrote:
... There are large differences in audio
volume when receiving different strength signals.
There are two AGC
Steve, please report back with the results of your change.
I have my AGC slope set to 3 or 4 IIRC. Anything more than that and the
rig just sounds flat with noise signals all being the same level, just
like all the rigs that I've owned before.
- Keith N1AS -
- K3 711 -
-Original
Ok settings gurus, What values of K3 AGC parameters will make the K3
most closely mimic the AGC in the K2?
- Keith N1AS -
- K3 711 -
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Ok settings gurus, What values of K3 AGC parameters will make the K3
most closely mimic the AGC in the K2?
- Keith N1AS -
- K3 711 -
Well, my choice is high threshold, steep slope and low AF gain!
AGC THR 8
AGC SLP 4
73' Val, LZ1VB
K3 516
K2 2745
Val-LZ1VB wrote:
Well, my choice is high threshold, steep slope and low AF gain!
AGC THR 8
AGC SLP 4
Sounds about right Val! See the K2 AGC curve here about 2/3 of the way down
the page:
http://www.cliftonlaboratories.com/receiver_agc_curves.htm
73, Bill
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Stan,
it is very useful to program AGC slope settings to PF1 or PF2 key to
have instant access from panel by one key to this setting.
(I have AGC slope assigned to PF1 and TECH mode ON to PF2)
73!
Lexa, ok1dst
K3/10 #727
Stan Rife napsal(a):
Thanks, I appreciate the help. I guess I have
Hello
I am one of happy K3 users. S/N 00060
I found annoying AGC action when operating CW with 2.8KHz filter
even if I configure AGC THR in config menu to highest value.
Can we expect more improvement with AGC mod ?
I have already ordered CW rise time mod kit and AGC mod kit though.
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73 de
as if AGC THR is even lower than the lowest
available setup parameter, which I will be looking for
in the next firmware update.
This is all very low priority for me however because
the K3 is already better than anything I have ever
tried before. ;-)
[Elecraft] K3: AGC mod
a.yoshida ayoshida
available setup parameter, which I will be looking for
in the next firmware update.
This is all very low priority for me however because
the K3 is already better than anything I have ever
tried before. ;-)
[Elecraft] K3: AGC mod
a.yoshida ayoshida at my.email.ne.jp
Sun Mar 30 07:59:38 EST 2008
Lyle Johnson wrote:
AGC SLP (Slope?)
This allows you to change the flatness of the AGC. Some people like
ift flat (very strong signals and moderately weak signals all have the
same loudness). Others prefer that stronger signals drive the audio
level alittle harder than weaker signals.
Vic K2VCO wrote:
I reduced THR because I do not want *any* AGC action on the weakest
signals.
Shouldn't you be increasing THR if you don't want AGC action on weakest
signals, i.e. raising the threshold for the onset of AGC action and not
amplifying the weakest signals through AGC action?
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