Main and sub always use the same AGC settings.
73,
Wayne
N6KR
On May 13, 2012, at 5:27 PM, Roy Morris wrote:
When AGC THR and AGC SLP are changed in the CONFIG menu, are the
settings
changed for the KRX3 also or are there other steps? Thanks. Roy
W4WFB
After all the discussion over the past week, I jumped on the download and
put them in this afternoon. (MCU and 2 DSP)
Wow. This provides a very noticeable difference in signal clarity and noise
reduction. WELL DONE! Thank you.
I hadn't thought of it before, but am I correct in presuming that
The KAT3 is a really good tuner but you won't be running two tuners will you?
On May 13, 2012, at 10:46 PM, Tony BenBrahim tony.benbra...@gmail.com wrote:
Hello,
I am ordering a K3 and was wondering if I need a KAT3, given that I will be
running an auto tuner at the anternna feed point?
Hi Tony,
I don't have the ATU in my K3 and I am quite happy without it. I have
mostly resonant antennas (2.0:1 on the bands I use without ATU) and do
have a manual external tuner that I can put in for the other bands.
If you are using a remote ATU at the antenna feed point there's no need to
Wayne,
It's hard for me to do a before/after side by side comparison since I only
have one K3 and the band conditions change all the time, but after using
the 4.51 firmware for a couple of days, it seems to me that APF is maybe
slightly less effective than it was before. Maybe it's because the
I can't give you an answer to that but you probably want to stay away
from THR=20 because at that level the SLP acts like SLP=15. Here are
some plots that I made showing the interaction between THR and SLP.
http://www.ke7x.com/home/miscellaneous-k3-information/agc-4-51
I think what you will find
I know, thank you.
73
Arie PA3A
Op 13-5-2012 22:29, David Gilbert schreef:
Would you expect otherwise? There isn't anything the rig can do about
that ... that's what directional antennas are for.
Dave AB7E
On 5/13/2012 4:08 AM, Arie Kleingeld PA3A wrote:
When I had two stations of
* On 2012 14 May 00:25 -0500, NZ0T wrote:
I just downloaded 4.51 and before I start messing around with changing
settings can anyone recommend a good starting point for general use?
Looking at Fred's graphic, I've chosen AGC SLP 004 and AGC THR 016.
Last night I ran across the 6O0CW pileup on
AGC SLP 008 and AGC THR 014.
NB DSP t2-1 IF nar3
NRNRmF6-1
But still playing.
KE4WY Jim
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Nate Bargmann
Sent: Monday, May 14, 2012 7:21 AM
To: elecraft@mailman.qth.net
Hi Bill,
It all depends upon the range of loudness range you want your ears to
tolerate.
I did some plots (SLOPE=12) for THR =10, 12, 13. I used the K3 S meter
high resolution readout, the K3 dBV readout and a variable output signal
generator. The RF gain calibration and Smeter
That depends on your microphone.
Do it like the manual says. You can do it in TX TEST so you don't
bother others on the air.
First turn compression to zero, then adjust the mic gain until you see 7
bars on the ALC display.
Then increase compression as desired - usually 10% is good.
73,
Don
I finally bought the JBL Control 2, and I want to report back to the group
what I´ve found out so far.
The sound is excellent. I had to find a sweet spot and fiddle with the
volume control on the speaker to get rid of hiss and noise and I was able to
reduce it to almost zero.I can only control the
After I built and used my K3 I wished I had included the tuner. Three
primary reasons: 1) I don't have enough resonant antennas for 160 - 6 (stuff
power into the 160/80 inverted L antenna for 30 meters; 2) match the input
of the amp on 12/17 meters; 3) jam power into the 80 meter antenna (cut
Count Down to Dayton- it is here again- already!
We could definitely use some help from our Elecrft enthusiasts in the
booth at Dayton this year.
Any knowledge of our products is helpful as the questions and interests
are wide and varied.
Our location has changed. Just across the aisle from
I recommend the Keyspan USA-19HS USB to serial adapter. Keyspan is good about
keeping their Mac drivers up to date. The Mac drivers for the Prolific chips
used in most cheap, generic USB to serial adapters tend to be buggy and
unstable. Amazon has the Keyspan units: http://amzn.com/BVYJRY .
Wayne,
I saw your below note on setting up a foot switch PTT via the ACC2 jack.
As an alternative, and if I am not using the MH3, is there any problem to
accomplish the same PTT function by building a jumper from a TRRS 3.5mm plug
(into the MIC jack) to two mono in-line jacks where the
Hi Thomas,
I haven't noticed this myself, and no one else has reported it that I
know of, but I'll listen for it. We didn't change the APF algorithm in
any way.
73
Wayne
N6KR
On May 14, 2012, at 2:31 AM, Thomas Horsten wrote:
Wayne,
It's hard for me to do a before/after side by side
Is there a member of this list that is *not* in a hurry?
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 2012 Cal QSO Party 6-7 Oct 2012
- www.cqp.org
On 5/13/2012 7:49 AM, Wayne Burdick wrote:
I believe the new K3 firmware will be uploaded today. If you're in a
hurry, email me
I think the new AGC sounds great. However, auto-notch is no longer working.
I can manually notch, but auto mode does nothing (LSB).
Firmware is 4.51 and I've also installed the latest DSP firmware (in both
DSP). I've also cycled the power, no change.
AGC DCY Nor
AGC Hold0.00
AGC PLS
On page 44 resistance test all good except J2(antenna jack)center pin 10K
My meter reads nothing the same as if I hold the leads up in the air.What
should I do.?
Leo kg6wni
kg6...@yahoo.com
--
View this message in context:
http://elecraft.365791.n2.nabble.com/kpa100-tp7555822.html
Jim,
That is what I plan when I get a round tuit
73,
Don W3FPR
On 5/14/2012 1:05 PM, James Robbins wrote:
Wayne,
I saw your below note on setting up a foot switch PTT via the ACC2 jack.
As an alternative, and if I am not using the MH3, is there any problem to
accomplish the same PTT
Hi Jim,
Yes, you can use pull the mic's PTT/UP/DN line to ground to activate
PTT if you split it out from the mic audio line. You could even roll
your own up and down switches.
73,
Wayne
N6KR
James Robbins wrote:
As an alternative, and if I am not using the MH3, is there any
problem
Hi Jim,
This is also how I hope to do the PTT control on the KX3, since I will have the
tip
of the ACC2 jack set up for triggering the PTT from the RTS line of the
computer. I
bought some plugs from DigiKey but am waiting to receive the KX3 first before
building any cables. Looking forward
Thanks for the help about the antenna jack one more thing on page 47 DC volt
test J3 + lead
it is supposed to be 0v I'm getting -019.0 It is less than 0 but I want to
be safe.Thanks
Leo kg6wni
kg6...@yahoo.com
--
View this message in context:
When you hold your leads up in the air, your meter is reading infinity.
Infinity is 10K (greater than 10K).
Your resistance test passes.
Joel -- N1JEO
On 5/14/12, leo kg6...@yahoo.com wrote:
On page 44 resistance test all good except J2(antenna jack)center pin
10K
My meter reads
I have 4.51 in and the auto notch is working fine.
Did your log on the utility show the DSP transferring as well? You
need to use the transfer all files. On my CONFIG: FW REVS do I have
uC=04.51, d1=02.76, d2=02.76, FL=01.15, dr=01.03
I checked the contents of the zip in the beta directory
Hi Guy,
Lyle also contacted me and it's appearing that AGC THR at 16 is not allowing
a 15 db signal (P3) to not get notched. It works beautifully at THR 7,
completely gone.
I sat and watched as both DSP were updated and it shows the appropriate
codes on the display.
It's likely along the lines
Umm, me? But that's likely to change once I actually order a KX-3 since that
means getting rid of one of my K3s...
-
73 - Chuck - AA3CS
On May 14, 2012, at 13:29, Fred Jensen k6...@foothill.net wrote:
Is there a member of this list that is *not* in a hurry?
Leo,
If you shade the PA transistors from the light, that voltage will reduce
- shine a brighter light on them and the voltage will rise. All is OK
73,
Don W3FPR
On 5/14/2012 2:25 PM, leo wrote:
Thanks for the help about the antenna jack one more thing on page 47 DC volt
test J3 + lead
Thank you both for the info.
Microphone is the one that Elecraft sells for the radio.
And for contesting I use a Heil.
73. If you are going to Dayton, safe travels to you...
On Mon, May 14, 2012 at 7:46 AM, Don Wilhelm w3...@embarqmail.com wrote:
That depends on your microphone.
Do it
It nicely notches away a broadcasting carrier at 7200 kHz here, tried
with THR 12, 16 and 20.
Pf
Rick == Rick Bates happymooseph...@gmail.com writes:
Rick Hi Guy,
Rick Lyle also contacted me and it's appearing that AGC THR at 16 is not
allowing
Rick a 15 db signal (P3) to not
I am contemplating the purchase of a K3 and want to SWL also. Can I use the
AM mode to listen to SW using the stock 2.7Khz tuning one sideband. The
impression I find reading the list is that no, you have to have the 6Khz
filter to use the AM mode but can use USB/LSB. I cant imagine music sounding
Hi All,
I like to inform you that following the K3 1st mixer replacement with a 2T
H-Mode Mixer, as previously announced, a 2T H-Mode Mixer is now available for
the Sub RX.
Following K3 owners request, a mod relative to a diplexer termination fot the
xtal filters bank is available. This is
Hi Stefan,
You can listen to AM (in AM/AM-S) mode with the 2.7kHz filter FB. But the
wider rx that the 6kHz filter provides gives a very noticeable improvement
in audio on the broadcast stations. My K3 (bought second hand) came with
2.7kHz filter and no general coverage RX filter, since I am also
Me. I'll let you guys work out the bugs :.)
Barry W2UP
k6dgw wrote
Is there a member of this list that is *not* in a hurry?
73,
Fred K6DGW
--
View this message in context:
http://elecraft.365791.n2.nabble.com/K3-MCU-4-51-tp7555011p7555838.html
Sent from the Elecraft mailing list
I put the KBPF3 and 6K filter in my K3. Prior to that it was dismal -
even on local AM stations.
Now it is an excellent SWL receiver - wish I had this back in the hay
days of all the foreign broadcasters (pre-Internet).
No regrets on spending the extra dollars.
Bill W2BLC
--
IN GOD I TRUST
Hi Gian,
Did you find that your diplexer termination for the filters also prevented
the changing input impedance of HAGC controlled amp Q1 from changing the
Group Delay Variations of the filters, especially the narrower filters?
My apology for not replying to your last email, will explain
HMM. I moved the AGC slope to 20 and then went listening. Was
working somewhat, but not well. HOWEVER, when I cycled the notch to
MANUAL, then OFF and then ON, it worked just fine.
73, Guy.
On Mon, May 14, 2012 at 2:59 PM, Rick Bates happymooseph...@gmail.com wrote:
Hi Guy,
Lyle
Hi Geoff,
thanks for your question. The diplexer that includes an attenuator, does some
stabilization for the filters. The Amplifier still changes impedance as Idss
current is changing due to HAGC action.
No apology, thanks
Best 73
Gian
I7SWX
Da:
Here are some first impressions after three (3) days of casual
operation with my KX3-F (Serial #112) received on Thursday May 10, 2012:
Ordering, Acknowledgement, and Shipping experience - excellent in all
respects. All date targets were hit precisely. UPS 3-Day Select
delivered the KX3
test message.
TNX 73,
Johnny VR2XMC
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Hello Elecrafters,
Originally, I intended to use my K3 for field days so that I bought this
internal ATU for my K3 in late 2010. Eventually, my K3 has never left my sack
and this internal ATU was not quite used because my K3 has been mostly rau with
linear amplifier and out board ATU.
With
I get the impression that the sensitivity of the CWT function has decreased.
Regards,
Mike VP8NO
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Post:
I successfully track a -132 dBm signal using CWT with Thresh of 20 and
PRE OFF. Pretty sensitive :-)
Note that if you have the TEXT DEC Threshold (set by a HOLD of the CWT
button) set to other than Auto, it will blank with weak signals. The
TEXT DEC Threshold is scaled with high AGC
Do any Elecrafters have a Dayton room they won't be using or need a
roomie for Friday night? The Crowne would be great, but that's not the
only place in town.
Contact me via email.
Thanks,
Scott, N9AA
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Home:
Hi Lyle,
OK, I wasn't able to put any figure on it. It just didn't seem so
lively. I was listening to some CW on 40m, low output antenna and even
some elements clearly audible above the noise didn't cause the CWT bar
to display. My AGC settings at present are pretty much pre 4.51,
Hello elecrafters,
Time goes very fast . My last year's visit to Dayton was just like yesterday.
I am NOT going to Dayton this year. Therefore, if you see any new projects
from elecraft and other new gears, please keep the group informed.
Enjoy your trip to Dayton. I visited NYC last
Well, I caved this evening and ordered a KX3 + ATU+Paddle + Mic (even though
I rarely do SSB).
Now the wit begins. Would anticipate late July, August or beyond. I suspect
this rig is worth the wait.
Thanks for the advice.
Sincerely, Mike Narges WF8O
--
View this message in context:
Hello all.
I'm brand new to the digital modes. I downloaded Digipan to my pc. I have a
1/8 stereo patch cord from the line in on my pc to the line out on the K3.
It recieve's good,all kind of qso to read.
I have a 1/8 mono patch cord from the line in on the K3 to a speaker out put
on the pc-I
On 5/14/2012 3:53 PM, kf4ueo wrote:
I am contemplating the purchase of a K3 and want to SWL also. Can I
use the AM mode to listen to SW using the stock 2.7Khz tuning one
sideband.
Yes, the K3 provides passable 3 KHz audio using the 2.7 or 2.8 KHz
filter in Sync-AM mode or when tuned to one
Joe, Doesnt the KFL3B-FM filer allow AM transmit, wnen you set it up as 6k
bandwidth in K3 Utility Xtal config?
I was under the impression from past posts that that was the case and
KFL3B-FM could be set back to 13k for FM use again?
Adrian ... vk4tux
--
View this message in context:
Adrian.
The 13 kHz filter can be used for AM receive and the effect is quite
nice, but if you want t transmit AM you must have the 6 MHz filter
installed.
73,
Don W3FPR
On 5/14/2012 11:34 PM, vk4tux wrote:
Joe, Doesnt the KFL3B-FM filer allow AM transmit, wnen you set it up as 6k
bandwidth
You might be surprised. The pace is accelerating.
matt W6NIA
KX3 #6
On Mon, 14 May 2012 18:39:49 -0700 (PDT), you wrote:
Well, I caved this evening and ordered a KX3 + ATU+Paddle + Mic (even though
I rarely do SSB).
Now the wit begins. Would anticipate late July, August or beyond. I suspect
Thanks guys for the input. I had an off list conversation with Lyle and got
my answer, Wayne was included too.
The scenario was the morning 75M 'old guy' net. During the lulls, there was
a ~15 db above the -110 db noise floor signal (I LOVE the P3!). Auto notch
would not take it completely out
You should connect a COM port cable from the PC to the K3's RS232
socket, select the correct port on Digipan. On the K3, set PTT to DTR
or RTS, and correspondingly set it the same on Digipan for the COM
port you selected. If your serial cable is RX/TX/GND only, you could
also select VOX for DATA
We'll eventually be making AGC THR and AGC SLP per-mode, which might
help with such situations. You could optimize these settings
differently for SSB (so that auto-notch worked optimally) and for CW
(to allow for the case where many signals are nearly on top of each
other).
73,
Wayne
N6KR
I have run into the same issue with CWT. I had to turn the noise blanker off
for CWT to pick up the signal. I am still playing around with settings and
hope to find the proper configuration to get max sensitivity without turning
off the NB. I need NB at my QTH. It On SSB, I am enjoying 4.51
I've just installed a new shack computer and am having problems with the
Elecraft K3 Utility and P3 Utility programs. I wonder if anyone else has
had something similar?
* PC is running W7 64 bit.
* Using MicroKeyer II to create virtual serial ports.
* Other programs work OK (DX4WIN, Win-Test,
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