Hi Jim
Thanks for the info :-)
Excellent, that is exactly what I want to put together.
for the record, some background to this project...
a few weekends ago was the ZL National Field Day which
I havn't done anything remotely serious for over 20 years !
A small team was put together, and I took
Actually, Jim, your T41 did have a serial port on its mother board. It just
wasn't exposed through a chassis connector. If you plug it into its docking
station or port extender, you have a DB9 real serial port. Ditto the T61.
/Rick
On 3/22/10, Jim Brown wrote:
>
> On Sun, 21 Mar 2010 00:09:43 -0
Paul -
Yes, the K2 and the 100-watt amplifier / KAT100 tuner can be used in the
way you describe. Order the version of the KAT-100 that is intended to
be used this way. The correct model number is KAT100-2. You will need
the following items as well: (1), an EC-2 enclosure (2) a tilt-bail
Hello folks
Need a bit of input hereI have a K2 with auto tuner fitted.
I would like to add the 100watt amp and external tuner.
Can these be put together in one single unit, using an Elecraft
box ?
Not sure how the amplifier is linked to the K2, normally it has
a harness internally.
The
Please unsubscribe me from the Elecraft mailing list.
Tom Brereton, W0TOM
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This l
Guy Olinger K2AV wrote:
> Here's a gut guess...
>
> Something in the Titan has gone sour. You read 300 watts on the
> Diamond because the line SWR is so high. Whatever is causing the high
> SWR from the antenna is causing all kinds of problems with RF in the
> shack. There is something the matter
Thanks Gary
"For a refined ham it is compulsory to own a k3"
--- On Mon, 3/22/10, rfenab...@gmail.com wrote:
From: rfenab...@gmail.com
Subject: [Elecraft] K3 and CM500
To: "Elecraft"
Date: Monday, March 22, 2010, 4:04 AM
Kudos to Hector (AD4C) for his site with an example of the sound fro
Hi Eric,
Do you have the mod
http://www.elecraft.com/K3/mods/ELECRAFT_Application_Note_KSYN3_ALC_Rev_A.pdf
in your rig?
I don't have the phenomena you describe in mine. I do have the above
mod. I realize it was for another reason, but wonder if it corrected
other stuff as well.
73, Guy.
On
Barry,you are not the only one,my K3 "see" a maximun of 4Khz BW(from 40 to
4000Hz) when I am on AM even it show 5Khz on the display and as you I use the
Spectralab as spectrum analyzer.
AD4C
"For a refined ham it is compulsory to own a k3"
--- On Tue, 3/23/10, Barry N1EU wrote:
From: B
I have been trying different things with my K3 #2914 - The problem appears
when rig is cold - this evening it was 10 deg C in my shop. I don't really see
it in CW
or with a carrier, but ssb will vary and temp will spike as hi as 100 deg C
for very short periods of time namely milliseconds. Someti
Barry N1EU wrote:
>
> Not here. I've consistently measured (with SpectraPLUS) 4Khz audio
> bandwidth on my K3 in AM with 6Khz filter and width control indicating
> 5Khz. I've always had 4Khz wide rx audio in AM - am I the only one?
>
I should have mentioned that this is in normal AM mode. In
Most logging software uses the Kenwood process of sending mode
before frequency. With the K3, the mode is stored with band
so sending mode then changing frequency (to another band) will
result in the mode being unpredictable since you are setting
mode on the old band, changing bands where you
> Not here. I've consistently measured (with SpectraPLUS) 4Khz
> audio bandwith on my K3 in AM with 6Khz filter and width
> control indicating 5Khz. I've always had 4Khz wide rx audio
> in AM - am I the only one?
No you're not. The DSP has a brickwall response at 4200 Hz
(except for the va
Here's a gut guess...
Something in the Titan has gone sour. You read 300 watts on the
Diamond because the line SWR is so high. Whatever is causing the high
SWR from the antenna is causing all kinds of problems with RF in the
shack. There is something the matter with the Diamond read on
reflected
Joe Planisky wrote:
>
> Yes, that's normal. The displayed bandwidth is audio bandwidth.
> Remember that AM uses both sidebands, so the 6 kHz filter passes 3 kHz
> above and 3 kHz below the carrier (6 kHz total). Your resulting audio
> bandwidth will actually be somewhere around 3 kHz.
>
Greetings fellow Elecrafters--
I was chasing RF in the shack, which had been causing cqrlog to lock up.
I was using the loudness of the hum coming out of my PC's outboard
stereo speakers to gauge how much raw RF there might be.
Well at one point the shack got very quiet and I thought that I m
For Sale: Elecraft W-2 Wattmeter. Less than 3 months old. Excellent condition.
Includes 2kw sensor unit, serial cable and CAT-5 connecting cable. $235 shipped
CONUS.
Thanks...
73,
Ed - K6CTA
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Thanks for all of your comments... A great help
Craig
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Steve,
Another cause of intermittent raspy audio during both transmit and receive
could be a dicey solder joint in the KSB2's crystal filter circuit. If one
of the bandwidth settings you have chosen for the variable bandwidth crystal
filter is 1.8 kHz or wider, try switching to this filter sett
L34 is not in the transmit path, so eliminate that from suspicion.
Put the BFOs for FL1 (must be OP1) back on the correct sidebands, then
try the following. If you have questions about the proper passband
placement, review Part 3 of the K2 Dila Calibration article on my
website www.w3fpr.com.
Dan,
Did you find a peak on each of the bandpass filter tuning steps? If
not, go back and align the bandpass filters. Set the power anywhere
between 1.5 and 2 watts. Keep the power low (less than 5 watts) and you
can find the peak more easily. When the power climbs (it will if the
tuning w
Sorry, I should have read more carefully...I've never used N3FJP software, but
I have the same problem with Logic 8. In my case it's not the K3, its the
software.
-Original Message-
>From: wb5...@earthlink.net
>Sent: Mar 22, 2010 5:22 PM
>To: Terry Schieler , elecraft@mailman.qth.net
>S
The 5 kHz dsp bandwidth comes into play when one uses AM synchronous
detection (AM then ALT) where the "shift" is either carrier plus upper
sideband (USB is on in display) or carrier plus lower sideband (LSB).
It actually sounds like 5 kHz bandwidth. What I use all the time
listening to BC up abov
What logging software are you using?
-Original Message-
>From: Terry Schieler
>Sent: Mar 22, 2010 2:25 PM
>To: elecraft@mailman.qth.net
>Subject: [Elecraft] (K3) Mode change with band unpredictible
>
>My K3 (#474) seems to be all over the board when it comes to changing bands
>and endin
Steve,
Based on your "sharp whack" cure, but yes, that does usually indicate a
solder problem (or something loose).
I would first check RFC15 on the bottom of the board - it is connected
to pin 16 of U4 - check it with an ohmeter, even if it is open, it will
measure 5 volts on both ends. Since
Ouch, that hurts. Don, will probably have a solution. Just wanted to get
to you ASAP with an idea.
Bill
K9YEQ
-Original Message-
From: Steve & Anne Ray [mailto:sbr...@cox.net]
Sent: Monday, March 22, 2010 4:16 PM
To: 'Bill K9YEQ'
Subject: RE: [Elecraft] Raspy Audio
No this is both on
An owner of a K2/100 (S/N < 2000) showed me the follwing problem: it looks as
if the mic drive were not enough for driving 100 watts USB on 17m band. A
whistle test could only reach abt 20 watts.
However, on LSB the same whistle test produces full power output. Playing
with CAL FIL, I moved BFO f
Hello all,
I have finally gotten to the final alignment portion of my K2 and have found
power out problems on 3 bands, 80, 15, and 17 meters. The measurements follow:
Band:2 watts setting 5 watts setting 10 watts setting
80 m. 2.0watts out1.8 watts
Cheers for that Don, thought it might be me misreading/misunderstnding :)
The web page link earler also cleared it up for me as well.
Thank you for the replies every one much appreciated.
This really is a great little rig, as usual also excellant support :)
73 Gary G7USC
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I have run into the first problem with my K2 S/N 1422, which has the latest
firmware and mods. I built it back in 2000 and not had any problems with
it till a few weeks ago. It now has an intermittent problem of receiving
and transmitting a very raspy audio. It is not caused by AC magnetic
cou
Hello:
I¹d like to thank all of you who responded to my question about station
grounding. I appreciate all the suggestions. I especially want to thank
those who provided such detailed information about their own grounding
systems. Gentlemen, you¹ve helped more than you know. Thanks.
73,
Chuc
Try this without having any software running and see if you have the
same issue ?
(very?) old kenwood radios needed the mode to be set before the
frequency, this does not work so well on modern radios that remember
mode on a per band basis
On Dxbase I fixed this in the K3 radio configuration f
My K3 (#474) seems to be all over the board when it comes to changing bands
and ending up with the expected or desired mode for that frequency. I can
be on 14.030 CW, go to 10 meters SSB and then back to 14.030 and the mode
will be USB or LSB there. There seems to be no rhyme nor reason to the mo
Yes I suppose that´s what it is. Well it´s been like that
from day one, think I have SNR 1594 so it´s been a while.
I always been upset about it since IMO a high performance
radio shouldn´t behave like this. However I just haven´t
had time to look in to it further. Maybe it´s faulty after
all.
In a
> My main question is is it normal for the BW to max out at 5.0?
Yes. The K3 "width" display represents the audio bandwidth.
In AM the RF bandwidth is twice the audio bandwidth. Note
however, that the bandwidth display is somewhat confusing
in that it represents the larger of 2 * (Fh-Fc) or
problem was with my hearing or my fingers on
the keyboard, but since both are involved with my brain I'll assign the
blame there:
KA0NCR,Arnie,NE,K3,185,M30 C20
73,
Gus Hansen
KB0YH
__ Information from ESET Smart Security, version of virus signature
database 4966 (20100322) __
Those readings are normal. An indicated 3 khz bandwidth requires the 6 khz
filter - 3 khz on each side of the carrier. Since AM is DSB, one has to
double the indicated bandwidth to see what filter is needed.
Monty K2DLJ
> 3.0 / 1.5 *seems* right. If the BW control goes up to 5.0, I think it
After researching other sales I realized that my original price was too high.
New price is $850.00 plus shipping.
Please contact me off list if interested.
Mike, W9QS
> It's time to pass on my K2 to a
> future owner. Since purchasing the K3 it just sits on the
> shelve. I need some cash for
Thanks Matt,
I'll chalk it up to "Normal".
Rick
K6LE
On 3/22/2010, at 10:51 , Matt Zilmer wrote:
> 3.0 / 1.5 *seems* right. If the BW control goes up to 5.0, I think it
> tops out at 3.something.
>
> There is something about this that was on the list, last year, but I
> can't find it in the
Yes - great fun. A very interesting event.
Owing to unfavourable exchange rates I will not be there this year - so it
is safe to attend.
Mike
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3.0 / 1.5 *seems* right. If the BW control goes up to 5.0, I think it
tops out at 3.something.
There is something about this that was on the list, last year, but I
can't find it in the huge stack that develops...
73,
matt
On Mon, 22 Mar 2010 09:40:34 -0700, you wrote:
>"Nor" is 3 khz and 1.5
On Sun, 21 Mar 2010 00:09:43 -0700, Garry Shapiro wrote:
>Tom, NW6P has a new K3 and a "modern" laptop with no serial port,
About seven years ago, I bought a Quatech DSP-100 PC-card for my IBM T41
Thinkpad that came without a serial port. It provides two real hardware
serial ports from 16750 UA
I have the same firmware and utility versions, also running XP (Pro) and
a real serial port at 38400 bps. Mine is working OK and reads (and will
alter) the filter settings when the K3 is on AM/SSB/CW etc.
You mention the problem has existed for two firmware updates, have you
tried earlier firmw
On Mon, 22 Mar 2010 10:16:48 -0400, hank.k8dd wrote:
>2010 QRP-ARCI Dayton FDIM & Hamvention rooms!
>FDIM is Four Days In May (www.fdim.qrparci.org)
This is a quite worthwhile event. Some Chicago friends dragged me to it
several years ago (the last time I was in Dayton) and I enjoyed it a lot. I
Hi, Brian. I'm not understanding this problem completely. When you are in
CW or DATA mode and access the Filter Configuration window in the Utility,
don't you see the USB, LSB, AM and FM enable checkboxes? And, if you tap
the MODE button on the K3 to cycle through LSB, USB, CW, AM and FM modes,
Hi Rick,
Yes, that's normal. The displayed bandwidth is audio bandwidth.
Remember that AM uses both sidebands, so the 6 kHz filter passes 3 kHz
above and 3 kHz below the carrier (6 kHz total). Your resulting audio
bandwidth will actually be somewhere around 3 kHz.
You can get more audio
Utility version 1.2.12.28. FW version 3.79.
When I try and examine the filter configuration in SSB or AM mode:
"Unable to read K3 crystal filter configuration"
In the CW and DATA modes, all is OK. The filter configurations are
shown properly.
This problem now has existed for two firmware updat
No I have the RX EQ flat at 0, will test when I
get back home.
Jim
On 2010-03-22 17:38, pd0psb wrote:
>
> Can be correct Jim,
> If I remember correctly VCO "jump" intervals are larger than 5kHz SWBC
> raster.
>
> (have you tried reducing RX EQ band 1 ? That might make this symptom less
> obvi
"Nor" is 3 khz and 1.5 kHz center.
My main question is is it normal for the BW to max out at 5.0?
Probably doesn't matter since there is no audible difference as you advance
wider than 3.2 anyway.
Thanks,
Rick
K6LE
On 3/22/2010, at 9:11 , Matt Zilmer wrote:
> If you press and hold the SHIF
Can be correct Jim,
If I remember correctly VCO "jump" intervals are larger than 5kHz SWBC
raster.
(have you tried reducing RX EQ band 1 ? That might make this symptom less
obvious)
73'
Paul
PD0PSB
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When tuning for example across an AM band (like 49m band)
it does not happen on all stations. Might be that it
happens on some certain frequency interval but still
quite frequent.
I have not done experiments with different tuning steps,
maybe I should. Will try it when I get back home next
weekend
First of all let me say thanks to all those who've contacted me with
suggestions and words of encouragement.
Spoke with Dale at Elecraft (nice guy). Apparently #2737 suffered the
dreaded switching matrix failure and needs to be sent back for repair. I say
"dreaded" simply because it affects me an
Jim will probably tune in big steps for AM.
With more low frequency content in the audio/carriers of AM signals the VCO
interval cross-over points may be more evident.
73'
Paul
PD0PSB
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If you press and hold the SHIFT control (see NORM on VFO A), it will
reset the Fc and BW to what's normal for that mode.
matt W6NIA
K3 #24
On Mon, 22 Mar 2010 08:57:18 -0700, you wrote:
>After installing the 6.0 kHz AM filter I notice the Max DSP b/w is 5.0 and the
>Shift center is 1.5 kHz.
>
>
> So you don't have VCO "relock" chirps every few kHz ??
> (at least I think that's what Jim experiences...)
>
I seem to have some faint ones on my K3 if I tune in big
steps, but not in small steps. Either way if I have them
they are very difficult to hear.
I can hear them very easy on my Yaesu
After installing the 6.0 kHz AM filter I notice the Max DSP b/w is 5.0 and the
Shift center is 1.5 kHz.
Is this the normal set up?
TIA,
Rick
K6LE
# 3727
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VCO relock chirps every few kHz is not normal. Best open a
correspondence with k3supp...@elecraft.com.
On Mon, Mar 22, 2010 at 11:48 AM, pd0psb wrote:
>
> So you don't have VCO "relock" chirps every few kHz ??
> (at least I think that's what Jim experiences...)
>
> 73'
> Paul
> PD0PSB
> --
> Vie
So you don't have VCO "relock" chirps every few kHz ??
(at least I think that's what Jim experiences...)
73'
Paul
PD0PSB
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John,
You appear to be on the list, I got this request on the reflector.
73,
Don, WB5HAK
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Please add me to the elecraft list
John G3lwi
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2010 QRP-ARCI Dayton FDIM & Hamvention rooms!
FDIM is Four Days In May (www.fdim.qrparci.org)
We have 150+ rooms at the Holiday Inn in Fairborn,
Ohio, about 17.18 miles from the lovely HARA arena!
There are rooms with two beds still available. The King
rooms are pretty well gone at the moment.
Hello David,
Yes I did buy the Keyspan adapter in the UK in May 2007 from MacHeaven -
which is a trading name of Allstuff Limited, 1 Lodge Close, Bicester,
Oxfordshire OX26 3TE. At the time they had the Keyspan USA-19HS in stock.
Their Customer Service Queries email address according to the in
Hello everyone, well I finished the inventory last Thursday night, started the
control panel around 4:00pm finished it about 10:00 pm, started front panel
Saturday morning around 9:00am and finished it about 1:30 to 2:00. I have
started the RF board Sunday, and completed the first round of pow
Gary,
You do *not* lose the computer connection when the KPA100/KAT100 are
located in a separate enclosure.
The cable to be constructed is exactly the same as the one shown in the
KAT100 manual. The connector that connects to the K2 (KIO2 option) has
2 cables coming out of it - one goes to the
Ed,
The more you use it, the better it gets. I'm curious about your final
amp. What/where?
The mic bias info in on p52 of the manual in the Main menu functions
section, Mic Sel.
I found that downloading the pdf of the user manual and searching in
that was usually faster than trying to find st
Now with another evening in the books, I'm even more impressed. 20M was open
to the west coast and I heard John - N6JW - working stations so I managed to
get him. First call was with 25W, I was at his noise level so I bumped it up
to 75W and we talked for a few minutes. He helped me through adjust
Thanks Geoff for your comment. Have noted that brand details. Did you get
it in UK? I will be over there again in May, and in fact thats where the
laptop is as I forgot to bring back with me (as I usually do) last year .
To answer anothers comments. I'm not using Windows 7,Not likely,I'
Following on from this :)
I have the KPA 2 to build for my K2.
The plan is to have it set up remotely in due course with the KAT 100
(initially the KPA will be in the K2). The ATU and remote enclosure will be
the next step in my evolution of this lovely little radio.
Must think of a name for mine
Hi
Mine,# 4006, started its journey through the post on 25th Feb and I picked
it up from the ParcelForce depot in Perth on the 18th March. It took me
about 2 1/2 days (at 9hrs/day) to stick the inards into the box.
The radilo is a fine piece of kit. It's hooked up to a PC via DXLabs'
Commander.
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