Mark,
I am guessing that bias voltage is being supplied from another route or
that MH4 would not work. Some ops place the resistor on the mic
configuration header as opposed to the mic connector itself. That may
explain why it is working in the other rig.
Either way, sounds like you have
De : Don Wilhelm w3...@embarqmail.com
À : Ralf Wilhelm r...@super-deutschland.net
Cc : Christophe F8ACF-56 f8ac...@yahoo.fr; elecraft@mailman.qth.net
elecraft@mailman.qth.net
Envoyé le : Lundi 20 mai 2013 19h59
Objet : Re: [Elecraft] K2 and SSB
Ralf and Christophe,
Yes, what you
I'm no expert in assembling the K2, but, in RX, the SSB option only uses the
additional xtal filter. If SSB sounds like SSB received on AM, my guess would
be that the BFO (RF board) is not oscillating. Maybe pulling the crystal to far
makes it instable. Is it on both sidebands?
Since the K2
Christophe,
The usual cause is that the LSB BFOs are not set up properly.
I strongly urge the use of Spectrogram or other audio spectrum analyzer
to see where the filter passband is placed.
See part 3 on the K2 Dial Calibration article on my website
www.w3fpr.com. If you need to obtain
De : Don Wilhelm w3...@embarqmail.com
À : Christophe F8ACF-56 f8ac...@yahoo.fr
Cc : elecraft@mailman.qth.net elecraft@mailman.qth.net
Envoyé le : Lundi 20 mai 2013 17h15
Objet : Re: [Elecraft] K2 and SSB
Christophe,
The usual cause is that the LSB BFOs
-56 f8ac...@yahoo.fr
Cc : elecraft@mailman.qth.net elecraft@mailman.qth.net
Envoyé le : Lundi 20 mai 2013 17h15
Objet : Re: [Elecraft] K2 and SSB
Christophe,
The usual cause is that the LSB BFOs are not set up properly.
I strongly urge the use of Spectrogram or other audio spectrum
...@embarqmail.com
À : Christophe F8ACF-56 f8ac...@yahoo.fr
Cc : elecraft@mailman.qth.net elecraft@mailman.qth.net
Envoyé le : Lundi 20 mai 2013 17h15
Objet : Re: [Elecraft] K2 and SSB
Christophe,
The usual cause is that the LSB BFOs are not set up properly.
I strongly urge the use
Objet : Re: [Elecraft] K2 and SSB
Christophe,
The usual cause is that the LSB BFOs are not set up properly.
I strongly urge the use of Spectrogram or other audio spectrum analyzer
to see where the filter passband is placed.
See part 3 on the K2 Dial Calibration article on my website
www.w3fpr.com
thank you again for your help !
73 , Christophe F8ACF-56
De : Don Wilhelm w3...@embarqmail.com
À : Christophe F8ACF-56 f8ac...@yahoo.fr
Cc : elecraft@mailman.qth.net elecraft@mailman.qth.net
Envoyé le : Lundi 20 mai 2013 17h15
Objet : Re: [Elecraft] K2
David,
Does this K2 produce power in CW mode? I cannot tell from your post
whether you have an SSB audio problem or whether you have an RF transmit
problem - more information is required.
If you do have output in CW mode (or TEST), then the following questions
are relevant.
Do you have
Isn't this already on eBay with a Buy It Now price of $720.00?
http://cgi.ebay.com/Elecraft-K2-Transceiver-SSB-CW-QRP-w-Heil-microphone-/120759986576?pt=LH_DefaultDomain_0hash=item1c1ddb2990
Dennis NJ6G
On 8/6/2011 10:57 AM, Chip Stratton wrote:
I've posted this for sale on QRV for $750 shipped
@mailman.qth.net
Subject: Re: [Elecraft] K2 with SSB/NB/60m/160m for sale
Isn't this already on eBay with a Buy It Now price of $720.00?
http://cgi.ebay.com/Elecraft-K2-Transceiver-SSB-CW-QRP-w-Heil-microphone-/12
0759986576?pt=LH_DefaultDomain_0hash=item1c1ddb2990
Dennis NJ6G
On 8/6/2011 10:57 AM
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dennis Moore
Sent: Sunday, August 14, 2011 12:38 PM
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] K2 with SSB/NB/60m/160m for sale
Isn't this already on eBay with a Buy It Now price of $720.00?
http://cgi.ebay.com/Elecraft-K2-Transceiver
I posted this to the reflector two days before putting it up on Ebay, where
it is now and ends Monday. I lowered the BIN price a bit a few days after
the auction went live.
Chip
AE5KA
On Sun, Aug 14, 2011 at 2:37 PM, Dennis Moore den...@mail4life.net wrote:
Isn't this already on eBay with a
Rob,
Yes, there does seem to be something extreme in your problem
description. The K2 does have the greatest TX gain on 40 or 30 meters,
but it should not drop off so fast on the higher bands.
I would start by removing the KPA100 and testing the base K2 for maximum
power output on 40 meters
This sounds very much like the problem I had with a defective U3
(SSM2165 compressor chip) on the KSB2 board.
One check is to look at U3's voltage at Pin 4. It should be about 1.5 to
1.7V. Mine measured 4.7V. A defective U3 causes the TX to lock on in
VOX mode, which is exactly what you
Hi Trevor, thanks for that.
This is an interesting programme, particularly for those without on-board
processing, but I was hoping there was a way of evaluating a processed
speech pattern without having to listen to it, ie completely objectively.
Let's say I have a defect in my hearing (who
David said:
I just imagine that there is
somewhere a reference that will help identify those bits of the display
which contribute most to clarity and make it easy and more
Is this of any use as an analytical tool
http://www.dxatlas.com/VShaper/
Trevor G0KTN
The technique I used to set the SSB settings on my K2 was like this.
1. Transmit into a dummy load.
2. Receive on a known good receiver (Drake 2B in my case).
3. Record the receiver output in a high fidelity recorder (Cakewalk).
4. Listen to the recording on studio headphones.
This allowed
David,
You bring up a good point - how we actually sound to others is not
necessarily how we perceive ourselves.
Here is the alternative that I use:
I have a good fidelity stereo system in the hamshack, and also have a
recording of a male speaking voice (from a book on 'tape'). I play the
Don
I'm really trying to get away from any listening done by ourselves and
substitute an instrument = spectrogram. I just imagine that there is
somewhere a reference that will help identify those bits of the display
which contribute most to clarity and make it easy and more effective to
Listening to one's own speech via another receiver, to optimise one's own
transmit settings still gives a subjective result, *on average*, no better
than another radio listener. Inevitably, it will be a question of personal
taste, unless you have special training. It is true that radio
David,
It may help for you to re-visit the FL2 and FL3 filters with
Spectrogram. Instead of believing the filter widths that are indicated
on the display, you may want to actually measure the width in the
Spectrogram display. When the K2 variable filter is set substantially
away from its
Lyle...
Thanks for your reply. Are these adjustments, when finalized for SSB,
retained through on/off and mode cycling? Take care.
...robert
At 08/06/2007 15:34, Lyle Johnson wrote:
...Are there adjustments for DSP/SSB that I can tinker with to clear this
up? Thanks much.
Yes, set Beta
...Are these adjustments, when finalized for SSB,
retained through on/off and mode cycling?
Yes, all settings (except putting the unit in bypass mode) are
sticky and are saved through power cycles.
73,
Lyle KK7P
___
Elecraft mailing list
Post
...Are there adjustments for DSP/SSB that
I can tinker with to clear this up? Thanks much.
Yes, set Beta and Decay each to 00 and listen to the effect. Cycle the
denoiser through all 4 levels((see page 25). Next, set Beta to 99 (just
decrease the setting by one and it will wrap around to
On Jun 12, 2007, at 2:49 PM, Gary D Krause wrote:
The reason I am asking is because, I have the SSB board ready to
install. I have been using the basic K2 the last few days in CW
mode and I really like it since I work mostly CW.
The installation of the KSB2 won't affect operation on CW.
I found SSB at 10 watts to be a challenge. I run mostly CW and didn't
want to work at the few SSB contacts I make per year.
At the same time I compared the K2's receiver with my 830s and found the
K2 to be much nicer so I sold the 830s and put in the 100 watt PA. Then
I went back to CW. I
Gary
the K2 works nifty on SSB, either as a 15 or 100 watt
radio. even with only a vertical I would not hesitate
to call someone DX on 20m. of course its easier when
sunspots are higher! i have made many contest QSO's
running SSB QRP. and this is a great rig for running
PSK31. so if you have
Gary,
QRP SSB contacts can be plentiful, so just put the SSB option in - you
can also run soundcard digital modes if you want.
I usually stay away from the 80 meter roundtables where everyone is
bragging about how much power they are running - you will just not move
their S-meters up into
The K2 is my only low bands radio. I use at home and at scout camp for
demos. Phone and digital. Use it. It work well.
Rick Kent WD8AJG K2 5296
-Original Message-
I was just wondering how many here use SSB with their 15 watt K2? Does it
meet your expectations?
The reason I am asking
Okay, I've decided to install the SSB option. After all, I paid for it so I
might as well use it. I have a Kenwood MC-60A mic that I'm going to use with
it. I hope to work some of you guys on the air. Thanks for all of your
input.
Gary, N7HTS
On Tue, 12 Jun 2007 12:49:11 -0600
Gary D
I was just wondering how many here use SSB with their 15 watt K2? Does it
meet your expectations?
Hi Gary.
I put my K2 on the air (SSB) and made a number of contacts on 20 and 80 meters
before even opening the KPA100 parts box.
If I didn't tell people I was running only 15 watts at the
There's a small but significant advantage to staying with the standard
Elecraft OPT1 filter bandpass, rather than using one of the wider bandpasses
you can achieve with the optional capacitor kit. The narrower bandwidth
helps the S/N radio. The less bandwidth the 5 watts occupies, the louder
it'll
Terry,
WARNING - Do not do a hard reset without first writing down all your menu
and filter settings - they will be set back to factory defaults with a hard
reset.
I have trouble believing that a hard reset will correct any problem of that
nature - it seems analog in nature and the reset will
Terry -
I had this problem. The cause was in the KPA100 T-R switch. Don W3FPR came up
with the solution. He increased C31 to 0.2 uf.
Don may chime in with better words of wisdom, but it's a place to start.
73 de K1ESE
John
[EMAIL PROTECTED] wrote:
My K2-100 has an intermittent distortion
Keith,
Completed the K2 with SSB a few months ago.
And it is not perfect. Far from that.
BUT... There are a few easy mods you can do.
I replaced one resistor on the ssb board to increase mic-sensitivity.
Used spectrograph (see the site of N0SS) to tune the BFO right for a
good sound and that
Very interesting. I also seldom use SSB, but I did a test on 5413 and see
the same thing. I have the K2/100 connected to a 50 ohm DL through a Diamond
SX-200 power meter. When I first turn the K2/100 on with the power control
set to 15-20 watts, mode LSB and ahh into the mic, I get 100 Watts
- Original Message -
From: Ken K3IU [EMAIL PROTECTED]
To: 'Don' [EMAIL PROTECTED]; 'List Elecraft'
Elecraft@mailman.qth.net
Sent: Monday, July 31, 2006 7:16 PM
Subject: RE: [Elecraft] K2/100 SSB ALC Problem(Revised)
Very interesting. I also seldom use SSB, but I did a test on 5413
PROTECTED] On Behalf Of Ken K3IU
Sent: Monday, July 31, 2006 10:17 AM
To: 'Don'; 'List Elecraft'
Subject: RE: [Elecraft] K2/100 SSB ALC Problem(Revised)
Very interesting. I also seldom use SSB, but I did a test on 5413 and see
the same thing. I have the K2/100 connected to a 50 ohm DL through
Thanks to advice from M0DHO, LA3ZA and Gary Surrency
at Elecraft the problem described in
http://www.ac6rm.net/mailarchive/html/elecraft-list/2005-12/msg00408.html
is now solved, or nearly so. I still see a big jump
in SSB power between 10 and 11 watt settings, but the
power output is always
At 23:07 18/12/2005, Steve Kavanagh wrote:
Everything seems reasonable except at 11 watts, where
the output and current drain appear to be about the
same as at 80 watts requested. By comparison, here
are the numbers for 20m USB, where there is no
problem:
It seems to me that perhaps the
-Original Message-
If your K2 is suffering from this issue, the solution is to
modify the KSB2 module. Unfortunately, I can't find the
details offhand.
I think it must be this link that applies:
http://www.ac6rm.net/mailarchive/html/elecraft-list/2004-08/msg00887.html
The
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