I'm looking at page 24 of the KDSP2 manual. In the "KDSP2 Primary Menu"
section it says:
In SSB or CW modes, the primary menu is used for the auto-notch and noise
reduction functions. In
RTTY, the primary
which goes into the KDSP2 in detail. Somehow I've
misplaced it.
Thanks,
73,
Steve N6VL
K2 #2289
From: James Allen [mailto:[EMAIL PROTECTED]
Sent: Saturday, October 13, 2007 11:55 AM
To: elecraft@mailman.qth.net; Steve Kallal
Subject: Re: [Elecraft] Can'
David,
Can you shared the settings you settled on, by mode? Especially include the
Beta and Decay settings.
73,
Steve N6VL
K2 #2289
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of David Wilburn
Sent: Monday, October 15, 2007 4:15 PM
To: Elecraft Discus
unday, October 21, 2007 10:20 AM
To: Steve Kallal
Cc: 'Elecraft Discussion List'
Subject: Re: [Elecraft] K2 - DSP - Impressive
I set everything back to the default settings. Then the only ones I ended
up change was the SSB & CW gain settings. After that, when I want to use
the DSP, I
OK, I know this thread is over two weeks old, but I have to chime in.
I have two of the 275 watt Johnson Matchboxes. One needs repairing right
now. I think the 80 meter switching is defective.
I borrowed an idea from a review on eham.net. The Matchbox doesn't do well
with low impedances. The revi
Hi,
I am seriously considering getting the K2. However I am that good with a
soldering iron. Are there any builders out there who can start soon and are
reasonably priced. I will start will the basic K2 CW only wo/ the amplifier.
I might consider building it myself if there are any Elmers in or
Hello again!
I have a requirement that my rigs have relatively high audio output wo/
distortion from the headphone jack. I have a moderate hearing loss, about 45
db down especially in the speech region. The audiologists calls that
MODERATE. 60 db down is considered more serious. Wow! Even the FCC
Hi,
I got on this list a few weeks ago and asked about K2s. I have a used one
coming with a lot of options, but 100 watts NOT being one of them. It is CW
only, which is fine, as I am about 95% CW these days. It is an older one.
The SN is in the 22xx region, but has all the updates.
I downloaded
What is the typical build time of the KPA100 option?
73,
Steve N6VL
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I just a got second hand K2 today and have some questions. For reference the
SN is 2289 and it has the 2004 mods.
1. I need to know about the CAL FIL function. I prefer a CW pitch of 400 Hz.
The previous owner had it set at 600 Hz. The manual states I might want to
use CAL FIL to adjust the BFO s
I have been using a molded power cord with my recently acquired used K2. I
am sure the wire is 20 or smaller meaning there is likely a voltage drop. I
need to build up a power cable with larger gauge wire. Also I need to get a
connector. Does anyone know the correct Radio Shack SKU for the connecto
I have been building the KPA100 100 watt option for the K2. I'm half through
page 16 right now. Very soon I'll be installing some of the solid state
devices. I have a ground strap but am hard pressed in deciding where to
ground it. I have an new Weller WTCPT soldering station, which is highly
recom
I am about done with part 1 of the assembly of the KPA100 option. I opened
the K2 and removed pin 4 from P4 on the control board per the instructions.
Rather than connect the partially assembled KPA100 to the K2, I powered up
the K2 first. Now the K2 doesn't initialize.
Here are the symptoms:
1
I was hoping someone would answer me on this one. The phone lines at
Elecraft don't open until I am at work.
I am about done with part 1 of the assembly of the KPA100 option. I opened
the K2 and removed pin 4 from P4 on the control board per the instructions.
Rather than connect the partially asse
Hi,
I need someone locally in Southern California who can help me with my K2. I
made a slight mod to the Control Board per the KPA100 manual and now the MCU
appears intermittent. I need someone who can put my K2 on their bench, with
me present, and help me find the a probable loose connection or
RE" and "Elecraft K2 Keying
Modifications Instructions". Those documents are with the paper included
with this K2.
73,
Steve N6VL
-Original Message-
From: Don Wilhelm [mailto:[EMAIL PROTECTED]
Sent: Friday, July 27, 2007 11:00 AM
To: Steve Kallal
Cc: elecraft@mailman.qth
Thanks for all the suggestions on getting my K2 back up again. I was
modifying P4 on the K2 Control Board to prepare it for the KPA100. My K2
quit functioning in the process.
It turned out that pin 1 on the U6 40 pin socket was defective. On
inspection I noticed that pin 1 was missing one of the t
Hi,
I managed to fix my K2 after an intermittent on the Control Board appeared.
In the process I did a master reset hoping somehow that would fix my
problem. Now that my K2 is operational again, I've lost some of my power
output. It is almost certainly a calibration or setting issue.
I didn't b
I have a K2, serial #2289, that has a second harmonic in the sidetone. The
sidetone is set for 400 Hz because I do much better with lower pitches. The
sidetone at 400 Hz has a definite square wave sound to it. The problem
certainly is not present at 600 Hz, and I don't even want to try 500 Hz. I'd
I was wondering it possible to test the KPA100 option with one power supply,
but with two separate power cables. I have a distribution box with Anderson
Power Poles. So two power cables is easily possible. My power supply can
handle 25 amps.
I guess I could use two separate power supplies if abso
I have progressed through the KPA100 adjustments with NO issues until I got
to the bias adjustments on pages 49 and 50. I am unable to get any current
reading changes when adjusting R6. First of all, my current drain at 0.1
watts is about 500 mA rather than the 200 to 400 mA mentioned in the manual
d.
I am trying to find a cross reference on the interent and seeing if a couple
of parts stores might have it. They don't have a reference for it.
73,
Steve N6VL
-Original Message-
From: Don Wilhelm [mailto:[EMAIL PROTECTED]
Sent: Saturday, August 11, 2007 3:06 PM
To: Steve
Well after about a month, I almost have my KPA100 option finished for the
K2. I didn't accurately time the hours, but I think it is in the 25 hour
region. This is the first serious kit I've built in years and the most
serious ever. I had only one mistake to correct. U7, the dual op amp, was
reverse
My K2 is now a K2/100. Thanks to all who helped me navigate through the
obstacles. Fortunately there weren't too many. I didn't build my K2, though
now wish I had. There are still things to finish with it, such as
re-tweaking the SWR detection and the speaker. But these have been discussed
on a dif
OK, I've been the air with my K2, now a K2/100. What is the normal voltage
when key down with max power? I have tried two different power supplies. I
just got readings of 12.5 & 12.4 VDC. These readings are with the DISPLAY
button pushed.
Pardon me if the info is in the manual somewhere!
73,
I just noticed the pitch a received CW signal changes slightly. The pitch is
the same for FL1 & FL2, and the same for FL3 and FL4 though different than
FL1 & FL2. The pitch is about 10 Hz or so different.
Is this normal?
73,
Steve N6VL
K2/100 #2289
I think someone on the phone at Elecraft, told me Elecraft is going to be at
HAMCON in Torrance, CA next month. If so, will there be a stock of K2
accessories there?
I am particularly interested in the K160RX and the K60XV. That could save me
the trouble of having it shipped, since I live near the
I just finished the KSB2 option for my K2. I wired P1 for the ICOM mikes. I
have a GM-4 Heil boom mike with an ICOM cable. I also have the HM-36 ICOM
mike. I was able to get the GM-4 to work without the 10k resistor. The HM-36
requires the resistor, which I haven't hooked up yet.
Can the Heil GM-
I am starting to notice that the adjusting the BFO for a given bandpass
response also shifts the frequency. Of course frequency shift is what a BFO
setting is all about. I guess the K2 doesn't have an IF shift like most
rigs. If I set the BFO for each filter width, to give the same frequency,
what
Mountian Ops, now out of business, used to make a pouch with neck strap for
the K2. I still one for the FT-817 somewhere. Is there a pouch or carry bag
that works well with the K2?
73,
Steve N6VL
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Tim,
I already have the KAF2 and don't need it. But I wonder how you like the DSP
versus KAF2. What modes did you use the K2's with?
73,
Steve N6VL
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of NZ8J
Sent: Saturday, September 01, 2007 8:11 PM
To: elec
I just completed my first PSK31 QSO with the K2/100 at about 30 watts. The
heat sink got very hot so I took the power down to 20 watts. The KPA100
option is rated at 40 watts with PSK31 and 25 watts with modes like MFSK16.
The power was read with a meter that had a peak reading setting. The average
I saw the K3 at HAMCON in Torrance, CA yesterday. It is too bad I am in a
savings mode right now, since my job is related to the sub-prime mortgage
industry. Otherwise I'd be placing an order.
I see the K2 now as filling the niche as a high performance rig you take
with you. But the K3 is more of
I just lost the speaker audio in my K2/100, but still have audio through the
headphone jack. Switching to the regular cover and speaker doesn't help.
Looking at the schematics, it looks like the headphone jack could be faulty.
The speaker audio runs through the headphone jack and bypasses the speak
I hope this isn't off topic.
I bought an 18 AH gel cell for my K2 after the power went out last week.
Today I bought a charger from HRO that charges up to 750 mA, which will take
forever with an 18 AH battery. I've been told I can charge the battery with
my regulated power supply if I am careful
Thanks for the replies about charging my 18 AH gel cell. I was a little
impatient waiting on my 750 mA charger get the battery topped off. I left it
on yesterday evening when I stepped out and came back 2 or 3 hours later.
The charger's green light was on.
I did some reading on gel cells, in addit
My postings haven't been making it today!
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He
I've set up my K2 with the following bandwidths for the RTTY mode:
FL1OP1
FL21000 Hz
FL3500 Hz
FL4250 Hz
I am listening to an Olivia signal (a digital mode) with a 500 Hz bandwidth.
I would expect FL3 at 500 Hz to pass the whole signal. Instead I have to
select FL2 at 1000 Hz ban
I've really loved the K2 since getting one second hand back in July. I've
added the KPA100, KSB2 and the K160RX options.
But there is one really sore point with me. That is the small frequency
shift when changing filters. It is not a big issue when using CW or SSB. I
can live with that. But it is
OK, I know this is personal preference thing. But with the K2, it isn't easy
to change CW pitch on the fly. While the sidetone frequency can be easily
changed, CAL FIL needs to be redone. Many other rigs will allow you to
select the CW pitch or offset on the fly.
I chose 400 Hz for my pitch. Somet
I am the second owner of K2 #2289. I've built and added a number of options.
But I wonder about its rx sensitivity. I often have to use the preamp on 30
and 20 meters to hear weaker signals. The same is not true of my 756 PRO 2,
at least on the same signals while doing an A/B comparison.
That said
It has been a few weeks since I built the KSB2 option. There is one problem
I haven't yet resolved. The response on the USB side of OP1 is not as broad
as the LSB side, and has a narrower peak. I didn't pay much attention to
this before. I've never transmitted in USB except for the digital modes
us
The adjustment action on my RF gain control is erratic. The gain level
always settles down almost immediately once I quit rotating the knob, but
still too erratic for easy adjustment.
Is this a case of spraying some cleaner on the pot or replacing it?
73,
Steve N6VL
K2 #2289
I posted this question before and never got any response.
I have a K2/100 SN 2289 w/ the KDSP2. There is a definite soft hiss in the
headphone output. It disappears completely when putting the KDSP2 into bypass
mode. So I know it is from the DSP and not from QRN. I use the K2/100
almost exclus
ROTECTED]>
To: Steve Kallal <[EMAIL PROTECTED]>
Cc: elecraft@mailman.qth.net
Sent: Thursday, July 10, 2008 4:32:09 PM
Subject: Re: [Elecraft] K2: Audio hiss in headphones w/ KDSP2...
> Please let me know if someone has this problem or has resolved it.
< URL:http://www.qslnet.de/memb
Thanks to all those who help with the the hiss problem. I was able to
find a comment in the original thread by WA8SRA. Dale's solution is at
http://mailman.qth.net/pipermail/elecraft/2003-October/024744.html.
However I found a reply to Dale at
http://mailman.qth.net/pipermail/elecraft/2003-Octo
I just did the AF-Gain-Control Mod on my older K2 sn 2289. After
reassembly, the gray BAND+ is starting to fail. It is used a lot for
KDSP2 programming and does always recognize a push and hold function
now. It often interprets it as a momentary push.
I could and should just order the new par
Don,
I just spent most of the afternoon going over every trace that is part
of the connection between the Front Panel, RF, & Control boards looking
for solder bridges and frayed wires. Remember this started as a volume
control mod requiring cuts and jumpers on all the above boards.
That said
Don,
I am about to change my mind. Now I am having a flaky response from the
XFIL button, much the same symptoms.
I already went through the Front Panel, Control, & RF boards earlier
today. Now I am out of ideas. I must of jarred something loose when do
the volume control mod.
73,
S
I was trying to calibrate the frequency on my K2/100 and noticed that
the received beat frequency changed when attaching the top cover (the
KPA100 option). After putting the mounting screws back in, I noticed the
frequency will again change when squeezing the top and bottom covers
towards each
I was trying to calibrate my K2/100 and had it within 10 Hz according to
WWV 10 MHz. I should have left it alone. Now it is off by about 700 to
800 Hz on 40 meters. Ouch!
Here are the steps I did so far:
1. I set the C22 trimmer on the Control Board by the N6KR method at
http://w3fpr.qrpradio
Don,
I got back it in the ball park. I read the W5YR instructions on your web
site, about the 5th harmonic of 4 MHz of 20 MHz. Fortunately WWV on 20
MHz is still coming in on the west coast, but fading out. After all this
work, I am back where I was except about 40 Hz low for zero beat on 10
Sorry, but I'm not sure I agree. By that definition many radios since
the 80s would be SDRs.
My definition of an SDR is a radio that could be radically changed in
functionality by a software change. Perhaps the K3 fits that definition
with firmware changes. But does the K3 modulate or demodula
it has become 'old hat' to me - use Spectrogram to verify the correct
tuning - ignore the K2 dial display until the last verification step.
73,
Don W3FPR
Steve Kallal wrote:
I was trying to calibrate my K2/100 and had it within 10 Hz according
to WWV 10 MHz. I should have left it
Don,
I finally got to within 10 to 15 Hz at 10 MHz now. I decided to use MixW
for the 500/600 Hz WWV tones. It works really well for that part of the
calibration.
I had misread your web site. You do endorse the N6KR method. I did find
the WWV Signal Format web page. Out here on the west coas
Mountain-Ops, now out of business, used to make a pack for the K2 called
the TacPack. See http://www.eham.net/reviews/detail/1754. I'd like to
find or make something similar. The pack from Power Port at
http://www.powerportstore.com/k1_and_k2_support.htm does not interest
me. It is more like lu
I notice that the KDSP2 puts out a soft hiss in my headphones. Putting the
KDSP2 into bypass eliminates this. A search of the archives doesn't produce
any results.
Is this normal, or do I have some troubleshooting to do.
73,
Steve N6VL
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Elecraf
I can't turn the volume all the way down my my K2/100 SN #2289. It has the
KDSP2 option installed. Don't remember if I had the problem before
installing the KDSP2 unit. Also have the KPA-100 option installed.
73,
Steve N6VL
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