Hello Wayne,
I am realy interested to fielt test the next release with the audio
improvements. Please add met to the list of testers please . Many thanks,
Dick PA3CW
wayne burdick wrote:
The next K3 beta firmware release will include dramatically better
bass response in receive mode
I can't wait!
This is what | love about Elecraft, we complain and/or suggest things
to improve and they try to add or fix it. Most of the time they
succeed in making us all happy.
I have no doubt the audio is going to improve big time with more bass response.
73, Maarten
PD2R
2009/9/18,
On Thu, 17 Sep 2009 18:25:10 -0500, Radio Amateur N5GE n...@n5ge.com
wrote:
On Thu, 17 Sep 2009 20:20:42 +, Lance Collister, W7GJ
w...@q.com wrote:
The SWR is 3:1 according to the SWR meter on the K3. The amp is a solid
state TE
SYSTEMS amp with an untuned input, which is why I want to
Will this be optional?
Personally I don't want it. I have impaired hearing and bass response
seriously degrades intelligibility for me.
Bryan, Zl1NI
The next K3 beta firmware release will include dramatically better
bass response in receive mode (50-200 Hz). The result is fuller,
richer
I'm still field testing 3.20 I think it is as that one accidentally
had the better LF response... I had to go back when it got taken
away... Looking forward to getting the more NR options AND LF response!
Thanks Elecraft!
~Brett
On Thu, 2009-09-17 at 23:50 -0700, PA3CW wrote:
Hello Wayne,
Another improvement to the K3 makes me a happy man. The K3 is so good that
I am considering the sale of an Icom 746 PRO to purchase a second K3 for
hauling around. This time perhaps I will install the two meter option.
Thank you Elecraft for encouraging the feedback and for being patient when
Since completing this K1-4 nearly three years ago for 40,30,20,15, have had
a lot of fun using it at home and park bench portable. Yesterday, after
building a 2-band filter for 80 17M, made a few QSOs on those bands as
well. I've found the K1 a very useful QRP rig for my purposes.
Awhile
Wowee! This could save me the trouble of modifying DSP board hardware.
I've asked to be
a beta tester on this, as I often browse the AM stations and have a 13kHz
filter installed.
I have 2 x K3's to modify and the first one is already stripped down and the
components
to be removed are
If you leave your fingers off the shift control, bass response will be the
same as it is now.
73,
Barry N1EU
ZL1NI wrote:
Will this be optional?
Personally I don't want it. I have impaired hearing and bass response
seriously degrades intelligibility for me.
Bryan, Zl1NI
wayne
On my new K3 I hear a Christian broadcast station centered on 1800 Khz. I
listened for awhile and Ohio was mentioned in the commercials several times.
I live about 70 miles from Ohio and couldnt find the station anywhere else
on my K3 after a quick search. I'm using a horizontal 160 meter loop
WCER- Canton, OH. 500W daytime. Christian format. 1800 kHz is the second
harmonic of 900 kHz. Call the station and ask to speak to its General
Manager or Chief Engineer. Give the station an opportunity to assess the
situation before contacting the FCC.
Paul, W9Ac
- Original Message
*Looks like second harmonic of WFIA* (900 KHz ) in Louisville KY.
Could be radiated by WFIA or could be generated locally to you.
Temporary installation of a high pass filter with a 1500 KHz cutoff
between your K3 and the antenna would demonstrate whether it is
generated inside the K3 or
Hi Steve,
Assuming you listened long enough to hear the station's
call letters or ID slogan you can do a Google search and
probably learn their assigned frequency, which is likely to
be 900 kHz.
It's possible that the 1800 kHz signal is a mixing product
involving strong external signals, but
Although the K3 is my only rig I forgot that I had a borrowed TS570 on the
shelf. I checked and the signal is there using it also so this is not a K3
topic. I hoped it wasnt! But surely this station must be illegal.
Steve
--
View this message in context:
Although the K3 is my only rig I forgot that I had a borrowed TS570 on the
shelf. I checked and the signal is there using it also so this is not a K3
topic. I hoped it wasnt! But surely this station must be illegal.
Steve
--
View this message in context:
Although the K3 is my only rig I forgot that I had a borrowed TS570 on the
shelf. I checked and the signal is there using it also so this is not a K3
topic. I hoped it wasnt! But surely this station must be illegal.
Steve
--
View this message in context:
This is the filter that came with #3300. It is about 2 months old.
Will sell for $50.00.
Contact me direct
Rich
k3...@arrl.net
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Help:
Paul:
A few years ago, there was a clearly readable, consistent signal on the
low end of 3.5 MHz band from the 3rd harmonic of an AM station in
Philadelphia. I can't recall the exact frequency, may have been 1220 KHz
that I heard at 3660 KHz.
Philadelphia is around 150 miles from here so it
Wayne,
I would like to give it a try.
Thanks,
Bob W9RFS
wayne burdick wrote:
The next K3 beta firmware release will include dramatically better
bass response in receive mode (50-200 Hz). The result is fuller,
richer audio, which many of you have asked for.
Lyle (KK7P) and I are
Curt wrote:
Awhile ago, recall reading some chatter about Elecraft offering a filter
board kit for 20,17,1510 once the sunspots started coming back.
... has anyone successfully configured a 4-band filter for these
bands on their own?
Stephanie/VA3UXB did a lot of work on this mod for both 2-
After hearing it for several days, I called the FCC watch desk in DC. The
response I received was that since the harmonic was only in an amateur
radio band no action would be taken.
As I recall, harmonic energy in Part 73 AM broadcast services still falls
under the general emission
Bryan, ZL1NI wrote:
Will this be optional?
Personally I don't want it. I have impaired hearing and bass response
seriously degrades intelligibility for me.
It's entirely dependent on the setting of Shift/Width in CW or Hi/Low in SSB.
If you don't
extend the passband to include the low
Hi,
I know it was discussed before, but i haven't found a final statement in
the archives of the List.
My last info is it is impossible to Transmit on VFO B during Output
Filter Switching and QSK.
I'm not sure if somebody ask to switch off QSK in this split mode.
Are there any plans to have
I have for sale K2 #6673 with the kpa100 and kat100 in the separate ec2
case, ksb2, k160rx, knb2, kat2, fdimp and kio2, about $2000.00 total cost.
It works like a dream, is like new, with extra parts, manuals, etc.
Asking $1200.00 plus shipping.
Brett
N2DTS
brett.gazdzin...@verizon.net
Me again,
i forget, Tx on VFO B if VFO B is on different Band.
73 Olli, DH2WQ
Oliver Grossmann | DH2WQ | oliver.grossm...@bretzi.de
Oliver Grossmann wrote:
Hi,
I know it was discussed before, but i haven't found a
On Fri, 18 Sep 2009 09:59:46 -0400, Paul Christensen wrote:
As I recall, harmonic energy in Part 73 AM broadcast services still falls
under the general emission limitations under Section 73.44(b):
Yes.
Several things are at play here. First, when a transmitter is producing
strong harmonic
Wayne, does the new firmware require any hardware mods? The reason for the
question is that
everything at this QTH is ready for the California QSO Party and I don't
want to risk getting inside
the K3.
Yes, I would appreciate the opportunity to help test the new firmware beta.
73, Fred
Hi K3 gang- Anybody have an idea of when updates 3.25, 3.27 and 3.30
will become regular production releases? Thanks KT9T
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Help:
I'm finally coming to terms with K3 3260, born July '09. It's at last
fully integrated into the station, and the diversity receive
capability just blows what's left of my mind. This thing is like a
race car: it rolls off the trailer pretty damn fast, but once you
start fine-tuning it it just
Randy:
I have just the opposite problem. With my 32 ohm headphones I have to crank
up the sidetone to 40 but down to 15 with the 8 ohm speaker. It wouldn't be
so bad if I didn't have to listen to the tone while adjusting. There's 2
problems with this method. If I want to change sidetone level
Jim Brown wrote...
The key words to the station are something in your
transmitter is broken, and is likely to fail completely. You should fix it
soon before it takes you off the air and you lose advertising revenue.
It might also be useful to point out that their power expenses might be
You probably made the best choice for you. If the chip is cheap - which it is
just cut the pins and remove individually.
It is fairly easy to remove such a chip using hot air or thick tinned copper
wire. You need to be careful with hot air but if you mask off the rest of
the board with a piece
It wouldn't be so bad if I didn't have to listen to the tone while
adjusting. There's 2 problems with this method. If I want to change
sidetone level while in QSO, I miss words the other station is
sending or have to pause my sending while adjusting the level. Why
must that tone be present?
Thanks for all the helpful responses to this.
I am running Rev. 2.78 here. It is good to know, given the way I
operate, there will be no difference should I upgrade to an official
release in the future that has the better bass response.
Bryan, Zl1NI
Will this be optional?
Personally I don't
YES.Please put on the volunteer list for this...
Thanks Antnee N3ANT
wayne burdick wrote:
The next K3 beta firmware release will include dramatically better
bass response in receive mode (50-200 Hz). The result is fuller,
richer audio, which many of you have asked for.
I've never seen this situation written about but I've just come
across a very strange sound on my K3 - S/N-1068. With the dial
on 29.492.6 USB I get a continuous CW sounding signal. It
alternates a dot, then a dash then a space. If it were truly CW is
would be considered poorly sent CW and
Greetings:
Sales of the W3FPR Fixed-Output AF PC board have again slowed. Additionally,
I have a limited quantity remaining... actually, only eight (8) boards remain.
Once these boards are gone, I'll probably NOT reorder more boards to be made
by FAR Circuits. However, if someone else might
SN 2760 lives !!
A few minor tweaks left but I heard a lot of activity on 30M with about
4 feet of wire.
Time to put the finishing touches on my antennas and then I'll be out
there trying for QRP DX.
Gary
KJ7RT
Sun City, AZ
Yes this is indeed WCER in Canton, OH on 900 Khz. Canton is at least 100
miles from me. I cant even copy their signal on 900 Khz using a good
portable radio or the K3 (but I notice the K3 attenuates signals in that
range. I dont have the general coverage filter option.)
Thanks for the comments!
Just release it - you know it works already! We have confidence in you. Beta
is beta.
wayne burdick wrote:
The next K3 beta firmware release will include dramatically better
bass response in receive mode (50-200 Hz). The result is fuller,
richer audio, which many of you have asked for.
Just finished the KPA100. Page 49 External Amp Keying test. Getting
15 ohms during Tune.
Tried two meters. R1 and C90 look OK.
Ideas?
Best regards
AD1G
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Check your antenna and feedline connections as well as your connection to a
ground. Loose items there could be causing diode action inducing extra
signals. Happens here in the desert with things being so dry. Dry soil most of
the time until you get a rain, then it swells up, then shrinks
Hi Steve,
Are you sure it is WCER you are hearing? I am about 20 miles from Canton
and I do not hear anything at all on 1800 Khz. However, I do hear their
signal on 900 Khz S9 Plus.
73,
John, KD8K
Steve Walter WA3A wrote:
Yes this is indeed WCER in Canton, OH on 900 Khz. Canton is at least
Dick,
The normal resistance is very high (receive periods) and very close to
zero during transmit (or TUNE).
Your 15 ohms is unusual.
Check the gate voltage of Q9 - it should be close to 5 volts. Also
check the soldering of Q9. Be ceertain the source connection has had
enough heat to flow
Boy it really sounds good Wayne. AM broadcast quality. Outstanding job. I
really like it!
Jerry -n6jp-
On Fri, Sep 18, 2009 at 11:49 AM, Wayne Burdick - N6KR, Elecraft
wa...@elecraft.com wrote:
Hi all,
Thanks for your interest in the latest K3 field-test firmware (attached).
It can be
i've been looking for a form-fitting(ish) carrying bag for my K3,
mic, log book, etc. and happened to stumble across a case at the
local REI Outdoor/Hiking/Sports store. wrote up a little description
complete with photos you can see on my blog:
That's not bad, but I prefer this one
http://photos.smugmug.com/photos/452236495_pedTk-M.jpg
from Rose's Cases, especially since it is made for the K3, there is no
problem with it being too tight and pressing in on the main tuning knob etc.
73,
Bob W5OV
Email Rose at elecraftcov...@rfwave.net
hi bob... i looked at rose's cases and they are beautiful and fit
'perfectly' as they're custom, but they don't have enough padding for
my purposes, and are a bit pricey compared the REI case. however,
if someone wanted to -give- me one or rose's cases, i certainly
wouldn't complain! (smile)
I installed tonight the new FW 3.33 released and man oh man,what a big
difference in audio quality,my K3 now goes down to 50Hz,reception in AM
broadcasting is a delight and also when I tune ESSB stations in my Sony
headphones or my HiFi speaker is like hearing a broadcast on AM as well,for the
Hi Steve,
Are you sure it is WCER you are hearing? I am about 20 miles from Canton
and I do not hear anything at all on 1800 Khz. However, I do hear their
signal on 900 Khz S9 Plus.
73,
John, KD8K
Yes, I listened at 5pm to their ID. I can still hear them but much weaker
at 10pm. It IS
Yes, I listened at 5pm to their ID. I can still hear them but much weaker
at 10pm. It IS strange that you dont hear them on 1800 Khz. Steve
According to the FCC's database, WCER reduces power from 500-watts to
75-watts during their Post-Sunset Service Authorization (PSSA). This time
of
I have attached links to three .JPG images of the K3's audio response as
measured at
the headphone jack with SpectraPlus FFT software. Response passband was
normalized for both modes. SSB
is measured through the 6K filter, and CW through the 8-pole 2.8 kHz filter.
However, V3.33 SSB was taken
Nice!! Hard to ask for more than that :-)
Grant/NQ5T
On Sep 18, 2009, at 9:40 PM, Paul Christensen wrote:
As a further experiment, I just added 3 dB to Rx bands 1-3 and the
response
is now essentially +/- 0dB between 20Hz and 3.5 kHz in SSB through
the 6K
filter and Fc = 1.35. You
Wowee! This could save me the trouble of modifying DSP board hardware.
I've asked to be
a beta tester on this, as I often browse the AM stations and have a 13kHz
filter installed.
I have 2 x K3's to modify and the first one is already stripped down and the
components
to be removed are
I spent much of the evening browsing AM shortwave stations and can confirm
that the additional bass lift capability in 3.33 can be used to give a much
warmer sound. I reduced the first couple of equaliser bands to +3dB and
with the full bandwidth possible with a 13kHz filter, a slight shift below
I've just been listening all evening with a big smile on my face :*) This
is beautiful. Having the LF audio seems to make the entire spectrum sound
better. Even QRN is more pleasant to listen to. Thanks Elecraft! What took
so long? Why was bass chopped off in the first place?
Steve
N4LQ
This was asked for in the past and it turns out that more people wanted
it the way it is at the moment but it was not really a landslide it was
fairly balanced.
Personally I agree and would like the option to have it track the AF
knob. But this hasn't really risen to the top of the list (if it
I've been considering just ordering one on the site... Not really a
need as I've already got the 8 filters in there that I like but I
wouldn't mind being able to get the radio totally open just to allow for
maximum flexibility.
If anyone has a Broadcast Band BPF or a 13Khz filter that is surplus
I remember somewhere on the net reading about some mods to make the
K1-NB a little bit more aggressive. I've been unable to find this as of
late and would like to in the event that a few free moments presents its
self in the next month or so...
Anyone recall where that may be?
~BTH (KC7OTG)
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