K6KR wrote:
>I notice a definite qualitative change as the narrower filters switch in.
It
sounds quieter, and it seems like the volume is being turned down. I think
I'm responding to the reduced low and high frequency components that are
supposed to be cut off. The DSP-related changes seem more
Mike Downs-2 wrote:
>
> I get an ERR TXG message after running the high power TX gain procedure on
> 12, 15, and 17 meter bands. However, both the K3 and my wattmeter show 50
> watts output in each case. This error message does not show up on any of
> the other bands, and it does not show up wh
be the variable filters will be the answer if they don't have
IMD issues due to using varactors.
My point is to realize that the cascaded BWs may be 20-25% less than what
you think the maximum BWs are from their specs.
73, Bill W4ZV
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Jim Brown-10 wrote:
>
>
> Right on! BUT -- one good way to deal with this when you already own the
> narrower filter is to tell the K3 that its bandwidth is wider than it is.
> For
> example, I have tell the K3 my 400 Hz 8 pole filter is 500 Hz, and the 1.8
> kHz filter is 2.2 kHz. I find
Tom Childers, N5GE wrote:
>
> I've had 1.8 filters in many different rigs over the years and found that
> I
> rarely used them because, in my opinion, they are too narrow for SSB,
> making it
> sound tinny to me.
>
I'm copying this from the Yahoo Group list because someone recently asked a
si
David Yarnes wrote:
>
> I'll add my displeasure as well with regard to Heil
> headphones. I have 3 Heil headsets--the BM-10, the Heil
> Pro-Set Plus, and the Elecraft Pro-Set (made by Heil). In
> all cases the headphones suck! At least as far as output
> goes.
>
I wonder if some of y
K7TV wrote:
>
> What is adequate headphone sensitivity may be highly dependent on
> operating mode and rig selectivity.
> Case in point: Many years ago I ordered an FT-1000 and a Heil headset
> (forget which model). Headset volume was fine for voice, and for CW using
> a wide filter. But the FT
http://www.eskimo.com/~mwdink/3830/IARU%20Soapbox%20July%2014%202008.txt
Set Edit > Find > K3 and scroll down in the link above. A few selected
comments:
Call: G4MKP Class: SO CW HP Total Score =
483,560
Used my FT2000 for the first few hours and then finished off w
Val-12 LZ1VB wrote:
>
>
> There was a message from M0EDX on another ham forum yesterday. ON4UN has
> told him in a QSO, that he likes K3 he is using, and going to keep it as a
> main rig.
>
>
That "other" forum is in Russian, but here's a Google translation (2 pages
worth!):
http://tran
S Sacco wrote:
>
>
> Regarding the memories - I don't want to have to remember what memory
> # tracks with what band. I want to push the "40" or "7" button to go
> to that band.
>
>
If you follow KR2Q's memory programming suggestion below, you only need one
more press to do what you descri
Bill W4ZV wrote:
>
>
>
> S Sacco wrote:
>>
>>
>> Regarding the memories - I don't want to have to remember what memory
>> # tracks with what band. I want to push the "40" or "7" button to go
>> to that band.
>>
&g
I hesitate to interrupt the flow of OT trivia but here's something that's
actually useful:
http://www.eterlogic.com/Products.VSPE.html
This small free program allows you to create multiple connections to one
serial port used by your K3. For example, my old P3 computer has one true
RS-232 port o
DOUGLAS ZWIEBEL wrote:
>
>
> I just looked at the Yaseu 2000 instruction manual on line. To narrow
> the bandwidth, you turn the knob counter-clockwise (and vice versa).
>
> Some Kenwood radios (eg, TS940) have a VBT control (variable bandwidth
> tuning). Turning the knob counter-clockwise m
One caution about using VSPE courtesy of N8LP below. Do not connect any
other programs when running K3Utility for firmware updates. It's possible
that the firmware update files could be corrupted by other programs
attempting to access the K3 during the update process. Larry does not even
allow
alsopb wrote:
>
> Anybody out there playing with this feature or actually used it in a
> contest? What are your experiences?
>
> Playing with it yielded the following:.
>
> 1) Narrower CW filters can't be used (at least not my 400 Hz and narrower
> filters). The wings are outside the narro
I originally ordered my second K3 in September but asked for it to be held
until both the KRX3 (ordered May 1 last year) and KDVR3 were available so I
could build a new unit from scratch with all options. EI6IZ's diversity
recordings and comments finally got to me and I couldn't stand it any
long
Fern Rivard wrote:
>
> Good evening Lyle:
>
> I honestly don't know where you're getting those levels from as I
> already reported to you back in April/08 that the levels at the I F output
> were pretty well non existent. There is just no tracking of levels at the
> I F out with what is fe
n4lq wrote:
>
> I was thinking about ordering a Heil headset and had a question about
> which
> adapter to order. I though it would turn out to be the Kenwood adpt.
> According to Bob Heil himselfIt's the Yaesu adapter.
>
I've been using the Kenwood adapter including footswitch since D
N2TK, Tony wrote:
>
>
> I think this was addressed before with not having the KAT3. I do have the
> KAT3. Is it recommended to hook up the BNC connector on the back to the
> KRX3 or to use the second SO-239 on the K3 or does it make any difference?
>
> Most of the time I will be using the s
y off-list ONLY.
73, Bill W4ZV
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Spoken for! Thanks for looking. 73, Bill
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DOUGLAS ZWIEBEL wrote:
>
> I think having lots of Beta versions avaible to all is very cool and
> exciting, but then there are us non-early adopters to remember too.
>
Speaking as a field tester, I feel there is little risk in using beta
versions. Anything publicly posted by Elecraft has alr
Joel R. Hallas wrote:
>
> I just installed some new speakers, one on each side, to be ready for
> two-frequency reception whenever I get the second receiver.
>
Just my opinion, but if you plan to use diversity (i.e. same frequency, not
split) with the KRX3, you'll have much better results wit
"Power accuracy is better than 5% at any frequency from ~1W to maximum, 3%
typical with NIST traceable factory calibration"
http://telepostinc.com/lp100.html
73, Bill W4ZV
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M0XDF wrote:
>
> The one thing I would like is to be able to flip which knob controls VFOB.
> So I can tune the QSX freq with the larger knob. I don't want to change
> anything else around that - that is, I want to keep VFOA as A and B as B
> and
> transmit on B freq.
> Yes, I know I can flip A
you can listen to the DX with a narrow
setting and tune for callers with a wide setting. If you are as accustomed
to doing this as I was with my TS-930S, it's *almost* as good as having a
Sub receiver.
73, Bill W4ZV
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NB here:
http://groups.yahoo.com/group/Elecraft_K3/files/
8-pole plots by Inrad here:
http://www.elecraft.com/K3/K3_8_pole_plots.htm
73, Bill W4ZV
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Toby Deinhardt wrote:
>
>> DSP filter responses can be calculated exactly, they don't actually
>> have to be measured.
>
> As long as we don't have exact and detailed information about the
> implementation of the filters in the K3, the responses curves cannot
> be calculated by third parti
Bill W4ZV wrote:
>
>
>
> Toby Deinhardt wrote:
>>
>>> DSP filter responses can be calculated exactly, they don't actually
>>> have to be measured.
>>
>> As long as we don't have exact and detailed information about the
>&g
Ed Muns, W0YK wrote:
>
> BTW, all this discussion about what each filter's bandwidth actually is
> vs.
> what it's name is, raises a related point. With the K3, the DSP bandwidth
> at which a given crystal filter kicks in can be set to the nearest 50Hz.
> For example, if your "500 Hz" filter a
G4ILO wrote:
>
>
>
That message was not posted to this list, and it is unavailable to non
members of Yahoo.
http://www.nabble.com/forum/Search.jtp?forum=28632&local=y&query=8-pole+vs+5-pole
"Found 18 matching posts for 8-pole vs 5-pole in Elecraft in about 11
threads."
That's on this li
DOUGLAS ZWIEBEL wrote:
>
> Recently, they guys at Aptos said:
>
> [snip]
> The pick-off point for the K3's buffered I.F. output -- right at the
> output of the 1st mixer's post-amp stage -- was selected to give the
> widest possible bandwidth. Thus there is no filtering of any kind from
> here
In case you haven't looked at N8LP's site lately, check out his progress on
the LP-PAN for the K3 wideband IF output. This is really looking great!
Nice work Larry!
73, Bill W4ZV
Here is an expanded list of features...
* Optimized for K3
* Up to 192 kHz display on PC, sound card
roblem.
For other K3 users ***who have actually followed the S-meter calibration
procedure in the manual***, please send me your settings for SMTR OF and
SMTR SC. I'll compile a list and post the results here. If you just used
the recommended settings of 24/14, there is no need to reply
Bill W4ZV wrote:
>
>
> Only one other Field Tester (W0YK) responded to a query about my odd SMTR
> OF reading and both of his units were 22/14 and 24/14, which leaves me
> wondering if there is something wrong in mine. You comments make me think
> I may not be the only one
od from Elecraft (now installed). Contact Elecraft for the
mod.
I had used exactly the same RX ANT setup with a TS-930S, FT-1000MP and Orion
with no problems so this was definitely a problem unique to the K3 (now
solved).
73, Bill W4ZV
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VP6DX just started on 160 with a true 599 signal. I was their first QSO at
0344z for my #326 on Topband. K3 Mojo Rules!
73, Bill W4ZV
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rformance for
the money (<$5k total including the K3 configured for contesting).
73, Bill W4ZV
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dapter for.
I simply used the one I've had for Kenwood since 1984. Everything works
fine including the footswitch input.
Thank you Elecraft for using the Kenwood standard instead of creating yet
another!
73, Bill W4ZV
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tion and never counter-rotates when it stops. That's
exactly how I like it so I'm not adding the second washer. Others may want
more friction but this is perfect for me.
73, Bill W4ZV
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her and the documentation above
was inconsistent, I concluded I should have installed two washers. However,
also being a firm believer in "If it ain't broke, don't fix it", I left my
Main VFO knob with one washer installed. I'm very happy with the action of
both it and the Su
but they
agree with my first impression that the CW Manual Notch is not too useful.
It's a little difficult to use since you must guess its tone and the 20 Hz
setting granularity is higher than I'm accustomed to. Orion had 10 Hz
granularity in setting the tone and also offered a range of no
in doubt, I suggest they wait another 5 years...especially if
they are competing against me in contests. ;-)
73, Bill W4ZV
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Sent from the Ele
hers).
This reminds me of some on the QRP list who crow about "their" performance.
Most of the heavy lifting is actually done by the stations on the other end
of the QSO who have exceptional RX capabilities.
73, Bill W4ZV
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e from ARRL.
>
> Thanks, Alan KA9UCP
>
>
See below, written by W2VJN of Inrad:
http://www.qth.com/inrad/roofing-filters.pdf
73, Bill W4ZV
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Sent from the E
ter off using narrow DSP Width (<200 Hz) which is also easier to set
up quickly versus the Manual Notch. Another option is to use PBT to shift
the DSP filter to eliminate the interfering signal. BTW Orion even has a
much narrower Notch than the K3 but I seldom used it instead of simply
narro
omething
happened during the latter part of the contest that caused CT to record 1836
as my frequency for all contacts after that point. Not sure what caused
that but the K3 was controllable the entire time.
73, Bill W4ZV
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with preamp on then follow the manual.
73, Bill W4ZV
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Post to:
measure...I'm very
suspicious about the RX ANT issue.
73, Bill W4ZV
P.S. Toby it's amazing you worked VP6DX on 160 SSB...in the contest QRM no
less!
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Sent
n several issues.
Instead I contacted Elecraft and they were promptly resolved...two of them
resulting in nearly instantaneous production changes.
73, Bill W4ZV
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Sent f
Stewart G3RXQ wrote:
>
>
> On USB the trace was substantially flat with the -3dB points at
> 430Hz and 2.77KHz. Not too bad and could probably be improved by
> moving the carrier offset frequency.
>
>
One more point. The -3 dB bandwidth you are reporting is only 2.34 kHz on a
filter that i
offset in PBT (or HI and LO
if you use that), EQ set to flat, etc. You can also check the 2.7k in CW
(on both sidebands) which might give some additional clues.
73, Bill W4ZV
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Barry N1EU wrote:
>
> Bill, I think the 2.9Khz bandwidth measurements for that filter were taken
> at r.f. - for whatever reason, that bandwidth is not translating into a.f.
> - I've seen a.f. measurements done on about 5 samples of the 2.7Khz filter
> and they all run several hundred hertz nar
solder wick and a fine tip soldering iron are musts.
73, Bill W4ZV
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Elecra
r on the first pad, the
component will not fit on top of it very well and you'll have problems
anchoring it flush to the board. "Less is more" when soldering individual
components (i.e. you can't wick them like ICs because they are not flush
with the board).
73, Bill W4ZV
--
Larry K1UO wrote:
>
> Members can print out the 3 page review from the ARRL web site.
>
http://www2.arrl.org/members-only/prodrev/pdf/pr0804.pdf
"Houston to Aptos...we have liftoff!" :-)
73, Bill W4ZV
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Toby Deinhardt wrote:
>
>> 300 MW to work VP6DX shows that the K3 Mojo it still
>> there.
>
> 300MW ??? 300 Mojo Watts ???
>
> vy 73 de toby
>
300 Megawatts (MW) is way mo' than Mojo! :-)
73, Bill
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DOUGLAS ZWIEBEL wrote:
>
> Okay...so I am dbm challenged.
>
> Please translate these into uv or S units (9 = 50uv).
>
>
http://www.n6rk.com/S_unit_definitons.doc
73, Bill W4ZV
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Bill W4ZV wrote:
>
>
>
> DOUGLAS ZWIEBEL wrote:
>>
>> Okay...so I am dbm challenged.
>>
>> Please translate these into uv or S units (9 = 50uv).
>>
>>
>
> Typo in URL...sorry
>
> http://www.n6rk.com/S_unit_definitions.doc
inating the performance charts
over larger companies focused on many other markets. Goliath better wake up
before it's too late!
Welcome to the K3, the company and the community here.
73, Bill W4ZV
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Bill W4ZV wrote:
>
>
> I wonder if Adam has ever head the story of his namesake and Goliath?
>
Oops...wrong Icom zealot...thinking of KY1V. :-)
73, Bill
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Sent from
xt with the message you are
responding to.
There is simply NO reason for anyone to be frustrated if they take 5 minutes
to do the above. No emails, choose only Subjects you want to read and reply
in context. What could be simpler?
73, Bill W4ZV
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Lyle Johnson-6 wrote:
>
>> Is there a place for directions of updating the K3? I can't seem to find
>> them
>
> Open K3 Utility and then click on "help"
>
The K3 Update Utility is here:
http://www.elecraft.com/K3/k3_software.htm
73, Bill
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om using it after the "gee whiz" factor wore
off.
73, Bill W4ZV
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han 5% at any frequency from ~1W to maximum, 3%
typical with NIST traceable factory calibration"
http://telepostinc.com/lp100.html
73, Bill W4ZV
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Sent from the Elecraft m
Would anyone like to swap their 1.8k for my 1.0k? Please reply direct...NOT
to the list.
73, Bill W4ZV
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tware
page updated...check here later:
http://www.elecraft.com/K3/k3_software.htm
QRX...it will be well worth the wait! :-)
73, Bill W4ZV
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Sent from
NORM settings are fixed by the factory and not alterable by the user.
2. ALT1 and ALT2 are set by the user and are alterable (if new settings are
saved).
3. I/II are "scratchpad" memories that recall the last setting they were
set to.
73, Bill W4ZV
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nter the LINK mode (i.e. if A & B are offset
by 10 kHz, they will retain that offset when tuning the Main knob). I have
yet to understand why anyone might want to do that!
73, Bill W4ZV
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Se
jrhallas wrote:
>
>
> "We also suggest installing the latest version of our firmware downloader
> (K3
> Utility revision 1.1.3.6) before you do the upgrade."
>
> The latest utility version I see on the K3 Software Page is rev 1.1.2.28
> from 2/28. When I run that version it says "newer versi
/
73, Bill W4ZV
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Bill W4ZV wrote:
>
>
> Rob Sherwood's recent Boulder ARC presentation
>
> http://www.sherweng.com/
>
Some of Rob's best comments are in the discussion following the formal talk.
It will take a long time to listen to it all of but it's well worthwhile!
73
t you are describing
sounds like the AGC pop issue Rob Sherwood discovered in some DSP rigs. The
K3 has a firmware mod which eliminates this but the menu must be set as
above (default setting unless you accidentally changed it).
73, Bill W4ZV
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DOUGLAS ZWIEBEL wrote:
>
>
> Slide 16, last bullet really shocked me. I guess a rose by any other
> name may NOT smell as sweet.
>
> When does 3 = 7? When it's wrapped in an FT2000 cover. Not very
> funny. So much for truth in advertising.
>
>
I suppose "truth in advertising" does not
k. I haven't yet mastered that in a contest like the CQ 160!
I'm getting by with the K3's lower pitch limit of 300 Hz but hoping for
lower some day!
73, Bill W4ZV
P.S. Any others...especially from ex-commercial ops?
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Bill W4ZV wrote:
>
>
> Another one that Fred K3ZO (many time winner of Dayton CW pileup contests)
> recently mentioned is using extremely low pitch for weak signals. Fred
> said many commercial ops he knew used somewhere in the 2-300 Hz range so
> he thought his favored
.com/table.html (scroll to 75 dB IMD)
73, Bill W4ZV
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hermit-4 wrote:
>
>
> I would like to hear from folks that have used the Par Electronics
> EF-10/20/40 with any of the Elecraft qrp rigs especially the KX-1.
>
Not an Elecraft rig and using the older 2-band version EF-20/40:
http://users.vnet.net/btippett/cataloochee_divide_trail_qrp.htm
N
the edge of the Main VFO knob. Both are
~4"...which explains why the K3 felt very natural to me. I do have big
hands (~10" thumb tip to pinky tip) so this probably doesn't work for people
with smaller spans. BTW I suspect the 930/940 probably had more all time
units in the field tha
Dick Dievendorff wrote:
>
> A configuration from one version can be restored to a different version.
>
If you haven't stored a working configuration using Dick's Configuration
Save utility in the K3 Loader, I highly recommend you do so. I've made a
habit of periodically saving my configurati
Bill W4ZV wrote:
>
>
> I used a TS-930S for many years and learned to depress TF-SET (Kenwood's
> equivalent to REV) with my left index finger and tune the Main VFO with my
> left pinky. Since I found it very natural to do the same with REV in the
> K3, out of curios
If I were looking for a 1.5 kW tube amp today, I would look for one using
either two 3CX800A7 (peak-rated 3CPX800A7) or one 8877 (peak-rated
3CPX1500A7). Reasonably priced Eimac pulls from periodic maintenance of MRI
equipment in many hospitals ensures they should be around for quite awhile.
Pul
Ian White GM3SEK wrote:
>
>
> No, I do not want any new menu affecting the REV button!
>
> Please leave the REV button exactly as it is now, for those who like it
> that way.
>
> But if the sub-rx is not installed, please also make the unused SUB
> button do the same as the existing REV bu
G4ILO wrote:
>
>
> I'm just wondering if there are any advantages to using the PA when
> running QRP. As I understand it, the PA is switched out of circuit until
> you dial the power above 10W, just as in the K2.
>
> The switch point in the KPA3 is actually 13W. For 12 and less
> it
GW0ETF wrote:
>
> I wonder if there is a good reason why the REV function couldn't be
> allocated to one of the ACC pins and operated by a foot switch.?
>
> For those ofcourse that don't want to use a foot switch for PTT and/or
> haven't got the second RX on order...(like me)
>
Good idea
W7is wrote:
>
> If your interested in seeing the latest offering of a
> contest grade transceiver, take a look at this link.
> Reading their brochure is a real hoot!! During the next
> 10 days it will be making its official debut.
>
Not news. IC-7700 was announced about the same
Does anyone in EU have any idea when Peter Hart G3SJX will publish a K3
review? Would be wonderful if he had one with all the various CW filters
installed for comparisons. Rob Sherwood is testing all now but has not yet
made the results publicly available (i.e. 500/400/250/200).
73, Bill
--
V
Barry N1EU wrote:
>
> "The Heil footswitch is FB quality and reasonably priced."
>
> We must have a different definition of "FB quality". I've owned
> several Heil footswitches and they all eventually failed with stripped
> pivot screws. It's a poor mechanical design. You can kludge a repai
Ian J Maude wrote:
>
> Can I redo the K3 config on 5W with the PA physically in place or do I
> need to remove it? I am no at all happy with the output power so I want
> to go through the config again. Like others, I find that on SSB, the
> output does not peak at all well.
> TX ALC is on
Toby Deinhardt wrote:
>
>
>> In the manual, once you have finished the calibrations, it says to turn
>> off TECH MD.
>
> You don't really have to turn off the TECH MODE. The manual, imho, tells
> you to (suggests that you) turn off the TECH MODE, so that the chance of
> changing a sensitiv
rlpend wrote:
>
> Is the binaural audio effects circuit schematic-or something generic if
> the K3 circuit belongs to Elecraft-available so that I could make one to
> use with another radio ( such as K1, SST, RM)?
>
> Thanks--Bob N5JYW
>
Sommer,R. C. "A Simple Effective Receiving Aid", QST
30's for the Etymotic ER-6 which I also have). The Etymotic
doesn't irritate my ears like some people but the EX-29 is definitely more
convenient to use. Either of these will run circles around Bose or any
other active noise-canceling headsets.
73, Bill W4ZV
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View this message in c
ght be
a little tight but after using them for awhile I don't notice any problems
at all in wearing them for extended periods.
73, Bill W4ZV
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list
Anyone can join
Only managers can create and edit pages
Only managers can upload files
Announcement only
FWIW & 73,
Bill W4ZV
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Sent from the Elecraft mailing list archiv
GW0ETF wrote:
>
> According to the Application Notes Page my K3 #145 should have an ~8ms
> rise time. However, viewed on my analogue 'scope the rise time (0 - 100%)
> is definitely shorter and nearer to 5ms with a similar fall time though
> with a sharper falling transition edge.
>
> The notes
Bill W4ZV wrote:
>
> The production start date for this mod could be in error on the webpage.
> I know this issue has been known about well before S/N 211. My S/N is
> early 100's and it definitely needed the mod.
>
I believe G4AON (K3 S/N 80) was the first to disco
1). If this is true, you can easily determine if your unit was
modified by looking for a discrete 1.8k resistor installed between C196 and
C197 as shown in the HAGC mod instructions. If that resistor is in place,
it's a good bet that C222 has been replaced as well, but a capacitance meter
wi
ly, etc).
If you order at least $50.00 worth, you can also get a DMM free.
http://www.circuitspecialists.com/level.itml/icOid/190
73, Bill W4ZV
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1.6
60006125 1.5
http://www.zerobeat.net/mediawiki/index.php/K3_Roofing_Filters
FYI my 2.7k/1.0k/500 are in close agreement with the above measurements but
my 200 is slightly less than 210 Hz.
73, Bill W4ZV
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so good practice before you
attempt the same on the K3's beautiful RF board. You don't want to risk
lifting a trace because of bad technique so practice first.
73, Bill W4ZV
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