Don W3FPR:
A query about C228 a few days ago prompted me to look at my own K2
manual which does not show C228. Unless my old grey cells deceive me, I
recall the 40m bandpass filter being changed several years ago. In fact,
I have found an old envelope in which I have gathered together the
All the proposed changes to the 40 m bandpass were, as far as I can recall,
intended to decrease the bandwidth from 300 kHz to 200 or 100 kHz. These
modifications can be found here:
Elecraft's
http://www.elecraft.com/Apps/eu_40_meter_narrow_bandpass_filt.htm EU 40
Meter Narrow Bandpass Filter
I will be running the UK Elecraft net this Sunday 16th January as Ian
G0VGS is unavailable and asked if I could act as net control.
Recently I bought a P3 and 2nd RX for my K3 and will be able to give an
update on the latest beta firmware for the P3...
Frequency 3658 KHz +/- QRM at 0900z
73
John,I see today Elecraft as the new born of an old out of busineee company who
all of us remember for sure,Heathkit,that glorius company who made us feel
proud of american built radios,it was a shame they went out of business on the
60' because as me,there were many hams who built radios and
Thank you very much, Sverre; I now remember it. I shall not make the
change, particularly as I rarely operate above 7100 kHz anyway.
73 de David G4DMP
In a recent message, Sverre Holm (LA3ZA) la...@nrrl.no writes
All the proposed changes to the 40 m bandpass were, as far as I can recall,
I can't find this in the manual so here goes.
Any ideas how to increase the bandwidth when the K3 is in data mode? Right
now, it's will only open to 200 hz and it's too narrow to tune around the band
looking for rtty signals.
Thanks.
Larry, KN8N
LOoks like you haven't assigned your wider filters in data mode so the K3
knows it can use them. You can do this through the K3 Utility.
Larry Boekeloo wrote:
I can't find this in the manual so here goes.
Any ideas how to increase the bandwidth when the K3 is in data mode?
Right
David,
The 40 meter LPF was changed to an elliptical filter - you can see by
comparing the old and new circuits.
I am not certain of the reason, but I have assumed that it provides
better performance for both 50 and 40 meters (better harmonic rejection
for 60 meters).
73,
Don W3FPR
On
While I love the new firmware, I mourn the loss of the white VFO A marker that
used to repose vertically in the center of the display. Now that VFO A could be
anywhere, it would be really handy to be able to quickly recognize exactly
where it is in the screen (you do have a sense of where it is
Sorry, I saw C228 through my morning eyes and answered about the LPF,
but the question was about the BPF - it has been answered by Sverre.
73,
Don W3FPR
On 1/15/2011 8:56 AM, Don Wilhelm wrote:
David,
The 40 meter LPF was changed to an elliptical filter - you can see by
comparing the
Houston, we have a problem. When I go to data mode, PSK31 or RTTY, I
have the full bandwidth of the selected roofing filter displayed on
the DM780 waterfall. I ran through all the different data modes and
there are subtle changes but nothing like you describe. The only way I
can
Thanks to many of you on the list, I have 3 pretty happy transverters.
Heat problem - solved by replacing thermal pad between heat spreader
and case. Use Thermalcote heatsink grease instead.
Scraped paint off the case under screw heads, using a cylindrical
dremel bit, for all 3 XVs. Replaced
Thanks for all of the responses. I have the filters set correctly now and I've
made several contacts already this morning in BPSK and RTTY.
Thanks again.
Larry, KN8N
__
Elecraft mailing list
Home:
I recently finished aligning my K2 with the spectrogram software and with the
procedures from Elecraft. I am able to receive SSB on all bands except on
21m and 12m. The SSB signal is very distorted and sounds like the filter is
not wide enough to receive the SSB signal. I completed all of the
I am going to make 2 assumptions - correct me if they are wrong.
1) You do not have the KSB2 installed with its fixed 2.4 kHz width
filter, and you are attempting to use the variable IF filter at wide widths.
2) Your K2 has a serial number somewhere near 6800.
If those conditions are true, the
The weekly SSB net will meet tomorrow at 1800Z on 14.314 MHz. Ken,
KO5Y, with help from Paul, AD5SX, will be the net control station(s)
from New Mexico. Have a great net.
73,
Phil, NS7P
__
Elecraft mailing list
I've starting using the K3 line out for the first time driving some powered
speakers and really enjoying some great sounds. But I was surprised to find
that with my subreceiver turned OFF, there is no audio on the line out right
channel. I was expecting mono audio with main rx heard through
After working for many months my K3 now has less phone audio at the rear
panel out put than the front panel.
Until now, the headphones and internal speaker worked equally well with the
AF control at 9 o'clock. Now the rear panel STEREO/PHONE output must be at
12 or 1 o'clock to close to the
It is by design. Line out is Left for main Rx and Right for Sub Rx.
You can set Line Out=Phones and get the audio mixer, but the output
level will also vary with the AF Gain control in that case.
73,
Lyle KK7P
Can some other folks please check their K3 line out and please let me know
if
Hi guys !
I noticed P3 is out of game at tx time, in rx it is simply wonderful. I
wonder if it should be possible/useful/intelligent to display at it during
tx time info such as :
RF power
SWR value
ALC value
in big fonts in order to read values at a glance
Wonderful ,in my opinion, it should
KK7P wrote:
You can set Line Out=Phones and get the audio mixer, but the output
level will also vary with the AF Gain control in that case.
Beautiful - thanks Lyle (for the response and for coding the feature)!
73, Barry N1EU
--
View this message in context:
I am sorry I should have mentioned I have the KSB2 SSB board installed. I
followed the K2 Dial calibration procedures on your website to verify
everything is aligned properly and it is. I checked for SSB reception on 21m
and 12m and the SSB audio is still distorted. All other bands work below
This may or may not be relevant but low side mixing is used on 15m, 12m and
10m where distortion is heard, and high side mixing on the lower frequency
bands where distortion is not heard.
73,
Geoff
GM4ESD
KA1YMX wrote on Saturday, January 15, 2011 at 9:04 PM:
I am sorry I should have
I shouldn't have used the word distortion. The SSB stations are completely
unreadable, very similar to a narrow filter.
--
View this message in context:
http://elecraft.365791.n2.nabble.com/K2-SSB-Receive-issue-tp5925220p5925482.html
Sent from the [K2] mailing list archive at Nabble.com.
Great ideas, some of which are already on the list. Note the SENSOR
connector on the back of the P3.
73,
Wayne
N6KR
On Jan 15, 2011, at 12:24 PM, ik1bxn wrote:
Hi guys !
I noticed P3 is out of game at tx time, in rx it is simply
wonderful. I
wonder if it should be
Thanks Wayne. Yes, just looking to the rear panel I thought vector wattmeter
(or something like that) maybe is already in plan :-)
73 Giorgio IK1BXN
--
View this message in context:
http://elecraft.365791.n2.nabble.com/P3-in-TX-consideration-suggestions-maybe-stupid-tp5925385p5925562.html
Sent
Is your reference to 21m a typo instead of 20m, or are you referring
to the 21 MHz band which is 15m.
Are you choosing USB for the 20m, 17m, 15m, 12m and 10m bands?.
How does the LSB signals on 80m and 40m sound?
The sideband inversion Geoff mentioned is such that on 15m, 12m and 10m,
the
Thanks for good summary. It was quite a huge investment in 3 transverters and
certainly you would expect more value for money. Your suggestions could be the
manual errata.
cheers,
Johnny VR2XMC
寄件人﹕ Colin VE3MSC ve3...@cogeco.ca
收件人﹕ Elecraft Reflector
Hi Colin,
These issues will all be addressed in our transverter kit, PCBs, and
documentation as required. Sorry for the inconvenience.
73,
Wayne
N6KR
Thanks to many of you on the list, I have 3 pretty happy transverters.
Heat problem - solved by replacing thermal pad between heat spreader
Hi Giorgio
It would also be nice if you could define makers A and B to indicate signal
level on the screen.
If you then could indicate the difference between marker A and B this also
help. It would also be nice if marker A and B could be set as peak reading
markers.
Peak or level markers
I used my K3 to transmit a USB/LSB on all bands except for 10m. The only two
bands that I could receive a readable SSB signal was on 20m and 17m. I tried
USB and LSB on all other bands and could not receive a readable signal. I
used my S-Meter to adjust the frequency on the signal in which I did
Good Evening,
I am unsure whether it is winter now. The rain is so heavy the roads
are getting very rutted. Down in the valleys the streams are almost
overflowing. Where on Monday I had cold and snow I now have a deluge.
Internet connectivity has become intermittent due to the heavy
I have assembled and installed this module and everything seems to work
fine, including the RANT. Is it really advisable to adjust L3 and L4 again
given that the receiver has been previously calibrated and adjusted on 80
meters already (both bands share L3 and L4)?
Thanks
Brian
KB1VBF
Brian,
Yes, I would advise it, but do not simply peak for 160 meters because
some compromise may have to be made.
The way I do it is to first peak the inductors on 80 meter (already done
on your K2), then set the K2 to 1850 kHz. Do a TUNE at 1.5 to 2 watts
and make a notation of where the
Hi to all.
P3 Serial #546 is up for sale.
No issues, latest FW performing great BUT if you could see how much
room I have for my station you would surely groan and some gear is
arriving very soon to further complicate my day to day operation..:-)
Contact off list only please in the interest of
Thanks Don. Will do.
Brian
KB1VBF
http://home.comcast.net/~b.denley/index.html
- Original Message -
From: Don Wilhelm w3...@embarqmail.com
To: Brian Denley b.den...@comcast.net
Cc: Elecraft Reflector elecraft@mailman.qth.net
Sent: Saturday, January 15, 2011 10:56 PM
Subject: Re:
Newly installed P3. Noticed S meter reading on K3 will be 2-3 units
higher than that displayed on P3. I've tried lengthening the signal
heights, but results are unsatisfactory:-( .
Is there another method for bringing the two more in balance?
73
Bill Wade, Ai4PF
Bill,
Alan may provide a better answer, but are you making that comparison on
the amplitude of a single signal that is substantially greater than the
ambient noise level?
If you are comparing the ambient noise level, the s-meter reading on the
K3 will vary by bandwidth, and will be lower at
Go back to the filter alignment and look at the BFOs for each filter
(you may look either at the DAC values or at the frequency). If the
settings for LSB are the same as you have for USB, then you have the
BFOs set to the wrong sideband. Use 40 meters for this test so there is
no confusion
What s/n is the K3 in question? Generally, I have the same issue
here. The K3 s-meter reads high compared to the P3.
BTW, there is an s-meter calibration procedure given in the K3 owner's
manual
matt W6NIA
K3 s/n 24
--
On Sat, 15 Jan 2011 23:16:57 -0500, you wrote:
Newly installed P3.
There are a couple reasons why the K3's S meter and the P3 display may
show a different level.
As Don mentioned, the P3 will generally show a much lower level than the
K3 on noise. It's because the effective bandwidth of the P3 is
generally only one display pixel, about 1/450 of the span. Less
Al,
Yes, this does work and even the SSB sigs match very closely to the K3 S-Meter.
Regards,
Gary
On Sun, Jan 16, 2011 at 3:20 PM, Alan Bloom a...@elecraft.com wrote:
There are a couple reasons why the K3's S meter and the P3 display may
show a different level.
As Don mentioned, the P3 will
Alan,
I might add about the K3 CONFIG: SMTR MD = ABS, that the calibration
procedure indicated in the manual may (or may not) be the proper thing
to do.
The manual suggests that you calibrate the S-meter with the preamp ON.
If you do that, and set the S-meter to ABS, you will find that the
KPA100 is done, and everything checked out. I made a couple of
contacts on 40m SSB. It was nice to see that power meter needle swing
up towards 100W as I was talking.
Thanks again to Richard AD7FZ @ Elecraft for getting the replacement
parts I needed.
73,
David AJ4TF
Don,
The manual suggests that you calibrate the S-meter with the preamp ON.
If you do that, and set the S-meter to ABS, you will find that the
S-meter response is about 2 S-units lower than what you may expect.
Interesting. I assumed that in ABS mode it didn't matter if the preamp
was on
I have a service monitor, I could calibrate my S-meter if I really
understood the process, but haven't since I don't.
For my part, it was Greek to me.
Youknowwho
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 2011 Cal QSO Party 1-2 Oct 2011
- www.cqp.org
On 1/15/2011
I just re-read my manual (rev D7), and it says on pg 51 for s-meter cal if
SMTR MD = NOR, set PREAMP ON. If SMTR MD = ABS, set PREAMP OFF.
...bc nr4c
-Original Message-
From: Don Wilhelm [mailto:w3...@embarqmail.com]
Sent: Sunday, January 16, 2011 12:43 AM
To: a...@elecraft.com
Cc:
Bill,
I missed that recent update. It was not that way previously. We have
to keep up with the latest developments (and I failed). Wayne and I had
some discussion about this a while back, and I was not certain of the
outcome - Apparently we now agree.
73,
Don W3FPR
On 1/16/2011 1:46
Alan,
WARNING - I am leading this thread Off-Topic. Delete immediately if you
object,- some parts are personal.
Quoting Shakespeare on the reflector may be as good or better than some
of the other OT posts that have appeared here in the past (no specific
examples cited nor intended).
I
I have quoted Shakespeare in my ECN notes as well as other authors. Many
times an apt quote can say what we cannot say. Or, more often, say it
much better than we ever could.
Kevin. KD5ONS
On Sat, 15 Jan 2011 23:32:58 -0800, Don Wilhelm w3...@embarqmail.com
wrote:
Alan,
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