Fred Jensen wrote:
My new synthesizer hasn't arrived yet, but I'm getting the impression that
installation is pretty straightforward. What isn't going to be
straightforward is sorting out all the wireless stuff behind the rack.
Then Don Wilhelm wrote:
A good yearly Spring cleaning may be
Each affected product will be the subject of an associated errata sheet and a
complete set of the substitute parts. Nothing will be left to the builder's
imagination.
Wayne
N6KR
On Mar 7, 2015, at 4:07 PM, Don Wilhelm w3...@embarqmail.com wrote:
All,
I would like to add that the
RTFM? You cut us to the bone. Know where everything goes and exactly how
in advance? What challenge to that?
73, Guy
On Sunday, March 8, 2015, Wayne Burdick n...@elecraft.com wrote:
Fred Jensen wrote:
My new synthesizer hasn't arrived yet, but I'm getting the impression
that
Problem solved to my shame.
I forgot to install the coax cable from J4 of the auxiliary KSYN3A to J2
of the main KSYN3A according to page 14 at the KSYN3A manual.
Thanks to Wayne for pointing me to my failure.
So not the antenna connection was lost but the SUBRX simply got
no LO signal.
Folks
I suspect that may have been asked before, so forgive me if it has, but I
need to know what the typical voltage readings are observed (on the K3
voltage indicator) when
a) On receive?
b) With say 10w TX power?
c) With 100W TX power?
Using a DMM, I can see that my 13.8volt linear PSU
The part we used was Sprague-Goodman GCL4 (now obsolete). These are 1-40 pF
with a very low temperature coefficient.
Trimmers still available have TCs that are 2 to 4 times worse, and have a
higher minimum C. These are fine for applications where small drifts in C with
temperature don't
Gil,
When I bought my K3-100, the only thing I added was the 400 Hz filter, and
that seemed to work out well for me. Later, I added the KXV3A and the 13
kHz filter.
73,
Art WB8ENE
On Mar 7, 2015 11:52 AM, Richard Gillingham w...@hotmail.com wrote:
I’m thinking about purchasing the K3-100
I've not been active in some time with my KX-3. Last firmware update was MCU
1.61 and DSP 1.23.
What are the latest (non-Beta) releases available? Also, does anyone have
recommendations on a good desk mic for the KX-3? And any recommendations for
an interface to allow keying of an SB-200
And also make sure you download and follow the revised instructions and
Errata from the Elecraft website. Do NOT follow the printed
instructions shipping with the boards (unless they match the website
revisions).
Note also that if you have the 2-meter phase-lock option, the REF OUT
cable is
They've had massive orders and ran out (backordered). The next batch
was expected to be shipped ASAP, or next week for my order. The delay
was 5-10 BUSINESS days (two weeks). You're in line, be patient. :)
Rick wa6nhc
On 3/7/2015 7:10 AM, David Cole wrote:
HI,
I ordered a pair of synths
Only question I would have is the gauge wire used in the 220 volt
cord. Is there any difference between it and the 120 V power cord?
73 de Brian/K3KO
On 3/7/2015 19:34 PM, W0MU Mike Fatchett wrote:
The one that comes with the KPA500 is a very nice heavy duty cord. I
would not trust some of
Standard 18-gauge computer cords can get pretty hot with the KPA500. They carry
a lot of current (over 10 amps at 117V), and six feet of 18-gauge has
surprisingly substantial resistance.
What you really want is a heavy-duty power cord such as is used with servers.
The heavy duty cords that
I am certain there used to be a commercial part number, but the ones
that were used (the blue trimmer caps) are no longer available from any
source unless someone has a stockpile of them that might serve for
replacement purposes (I don't know of any sources).
Discontinued components are
You may note on the Sherwood list that the difference between the 400
and 200 (5 pole) Hz filters is 3 db for close in spacing.
If you DX or contest, that could make a difference. I have the 400 (8
pole) in both receivers, but I'm now wondering about changing to the 200
filters 5 pole or 250
This would only be enough for about 19 boards. And the price is likely to be
very high, knowing the surplus market.
73,
Wayne
N6KR
On Mar 7, 2015, at 8:57 AM, Bob wb4...@gmail.com wrote:
GCL4
http://www.1sourcecomponents.com/availability/SPRAGUE--GCL4.htm311
SPRAGUE[image: Request
GCL4
http://www.1sourcecomponents.com/availability/SPRAGUE--GCL4.htm311
SPRAGUE[image: Request For Quote]
http://www.1sourcecomponents.com/search/results.htm?base=GCL4%0D%0AGo.x=22Go.y=13Go=Gosubmit=Start+Search#rfq_form_top
311 available at 1 source electronics. Of course that would
On Sat,3/7/2015 9:11 AM, Mike Markowski wrote:
If you're a cw operator, I make heavy use of the 400 Hz filter. Not
too narrow (usually), and not too wide.
There's a potential misunderstanding here. The plug-in filters are
ROOFING filters, and are there to protect the IF from overload by
Or, get the 500Hz 8-pole from Inrad...
73, Ross N4RP
On 3/7/2015 12:29 PM, Joe Subich, W4TV wrote:
If you operate any CW or RTTY you will want the 400 Hz filter. IMO,
that's the best all around filter - particularly if you have any idea
of adding the KRX3 in the future since you will not need
The 400 Hz filter is marginally better for RTTY and no worse
for CW if there are strong signals close enough that a narrow
filter is needed to prevent window overload or AGC pumping.
73,
... Joe, W4TV
On 2015-03-07 12:52 PM, Ross Primrose wrote:
Or, get the 500Hz 8-pole from Inrad...
If you want general coverage or VLF below the BC bands, I believe you'll
need the KBPF3 filter.
--Dave W8OV
On 3/7/2015 10:42 AM, Richard Gillingham wrote:
I’m thinking about purchasing the K3-100 kit. I plan start with the minimum
configuration and adding features as I get the $$.. I
Many thanks for the recommendations. The consensus is overwhelmingly for the
400 KHz filter. I’m primarily a DXer, and most of what I work is on CW. So…
That will be on the list.
Thanks again to all
73
Gil, W1RG
From: Richard Gillingham
Sent: Saturday, March 7, 2015
Hi,
Thanks for the info! That answers why the delay... Glad they are
selling lots of them! Thank you for the info!!
--
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
for MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
for Dopplergram
I’m thinking about purchasing the K3-100 kit. I plan start with the minimum
configuration and adding features as I get the $$.. I already have the KX3,
PX3 and am using the KPA500 and KAT500 with my Icom 756 Pro II.
I’ll assume I won’t need the internal atu with the K3, and will add the
I would recommend at least a filter or two. I believe the only filter
that comes with the radio is a 2.7 KHz. If you operate CW, you'll want
at least one for narrow cw, say maybe 400 or 500Hz. IF you're purely
an SSB op, you might consider the 1.8KHz filter for crowded band
conditions or
I would still consider adding the 100W internal ATU for a couple of reasons.
If your KAT500 goes out and you have to send it back to the mother ship for
repair, you'll still be able to use any antenna you want. You won't be forced
into finding resonant antennas for the bands you want to
I find that I nearly always have the IF set to 200-250 Hz for CW, and
400 Hz for RTTY. In other words, I rarely use the 400 Hz filter.
Whilst the 250 Hz filter works for strong signals on RTTY, the group
delay increases rapidly as one approaches the knee of the response.
That group delay has
I am new Elecraft KX1 user. KX1 is a great solution!!!
Does anybody have a KX1 Info Cards? It is small data sheets with the basic
settings of KX1.
Could you share them with me?
Thank you!!
Anton,
R2ACY,
73!
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Home:
Gil,
If you're a cw operator, I make heavy use of the 400 Hz filter. Not too
narrow (usually), and not too wide.
73,
Mike ab3ap
On 03/07/2015 11:42 AM, Richard Gillingham wrote:
I’m thinking about purchasing the K3-100 kit. [...] With this bare
bones K3, is there anything else that you
On 2015-03-07 11:42 AM, Richard Gillingham wrote:
I’ll get the interface cable to the KAT500… With this bare bones K3,
is there anything else that you all might feel is indispensable?
If you operate any CW or RTTY you will want the 400 Hz filter. IMO,
that's the best all around filter -
If you're a serious CW op you'll want a narrow-bandwidth crystal filter.
The stock SSB filter is fine for casual CW operation.
If your computer doesn't have an RS-232 port, you'll need a KUSB
USB-to-RS232 adapter so you can do firmware updates.
Other than that, a bare-bones K3 is quite
Hi Chuck:
You should download the latest version of the KX3 utility (for your
computer's OS)... and then when you connect the rig's USB or RS-232
cable and launch the utility, you can then retrieve the latest
production release of firmware for the KX3. However, if you have not
yet done
On Sat,3/7/2015 10:26 AM, Rick WA6NHC wrote:
I'm now wondering about changing to the 200 filters 5 pole or 250 8
pole (I'm adding the new synth, when the backorder is fulfilled). An
edge is an edge but I suspect the 3 db is a rather bare edge.
I started with 400 Hz, then added 250 Hz. I've
My father-in-law (KC4YBO) just bought a KPA500 off an estate sale. It is
currently wired for 220 VAC. He will convert it to 115 VAC for use in our
shack. Is there any reason he can't use an old computer power cord we have
lying around for the KPA500, if it will fit the amp's power block?
The one that comes with the KPA500 is a very nice heavy duty cord. I
would not trust some of those super cheap computer cords. Why not
remove the 220 end and put a decent 110v plug on the cord?
Mike W0MU
On 3/7/2015 12:24 PM, Ian - Ham wrote:
My father-in-law (KC4YBO) just bought a KPA500
On 3/6/2015 9:33 PM, Don Wilhelm wrote:
The part number for the bare KFL1-4 board is E100129 as listed in the KFL1-4
manual.
Is there a commercial P/N specified for the capacitors?
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Home:
On 2015-03-07 5:27 AM, G4FNL wrote:
Using a DMM, I can see that my 13.8volt linear PSU seems to drop
0.1volt when going from receive to the 100W TX level - yet the
display indicator on the K3 goes from 13.7v (receive) to 13.3v (10W)
to 12.9v (100W) Is this typical?
Where are you measuring the
HI,
I ordered a pair of synths about a week ago, and was wondering what the
delivery time has been on the West Coast? Can someone comment on the
time it took for the order to be fulfilled and delivered?
--
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
for MixW
Per usual, I am late responding (I receive the list by digest about
2-3 times/day):
First off, I am not a HF contester or DXer, so my use of CW is casual
(avoid when the former activity is present). I bought the 8-pole
filters: 2.8-KHz and 400-Hz. The former because I run diversity on a
Ted -
unless Tech Mode is łON˛ in Config. Since it is recommended that Tech Md
be normally off
When I first discovered TechMode, I turned it on and it's been on for years
now. Who recommended it be off and why?
73, Mike NF4L
__
The K3 Owner’s Manual at p. 49 says: Most calibration procedures use
Tech-Mode menu entries. To enable these, set CONFIG:TECH MD to ON. Set
TECH MD to OFF afterward.” I have no idea why.
KN1CBR
On 3/7/15, 3:32 PM, Mike Reublin NF4L n...@comcast.net wrote:
Ted -
unless Tech Mode is łON˛ in
I think it's for Field Day or contests where someone else may be operating the
rig. It keeps
some of the more critical items a bit better hidden.
73, Roger
On 3/7/2015 5:36 PM, Ken G Kopp wrote:
I've wondered why there's an OFF mode for TECH MODE. Mine's never
been off since I first turned
There is no harm in leaving TECH MD set to ON, but there is exposure for
those playing in the menu to undo the calibration settings that fall
under the requirement to have tech mode turned on. So when used at the
home station, fumble fingers is the major exposure.
Now -- for Field Day and
Hmmm ... maybe a password or PIN to turn TECH MD on? :-)
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015
- www.cqp.org
On 3/7/2015 3:27 PM, Don Wilhelm wrote:
There is no harm in leaving TECH MD set to ON, but there is exposure for
I cannot help with the clutter behind your K3. That is the
responsibility of each and every K3 owner. A good yearly Spring
cleaning may be the only solution to the wire clutter in a 'wireless'
ham station. I do not schedule that activity, but do it any time I pull
the K3 out of its berth
What are you using for a Power Supply?
From: G4FNL gra...@g4fnl.co.uk
To: Elecraft Reflector elecraft@mailman.qth.net
Sent: Saturday, March 7, 2015 5:27 AM
Subject: [Elecraft] K3 voltage indicator
Folks
I suspect that may have been asked before, so forgive me if it has, but I
need
If you are seriously considering an SB200 that needs a keying circuit, the
standard upgrade for any of the SB200/201/220/221 is the Harbach Softkey
keying mod, which changes it from your keying +200 volts (compatible with
nothing modern) to a tame low negative voltage low current key voltage that
Installed two KSYN3As today; worked V73NS on 10M/CW right after so I guess
all is good. Installation fairly easy, though one suggestion for a
revision to the instructions, noted below.
More immediate question: What¹s the best thing to do with the old boards?
As I understand it: (a) KRX3 sub
Hi,
I think this is quite a good idea ! The talking arround it with the no
longer available trimmers could be stopped by redesigning the filter
with more fixed NP0 caps and less variable trimmers. A trimmer with
1 to 40pF is an evil an unneeded coponent.
Give the firmware to open source and
W1 built into a plexiglass box by SK K8IDN. $75.
Also, a couple of frequency counters.
See them here: http://www.carl-yaffey.com/estate_sale.html
Carl Yaffey K8NU
Recording studio.
cyaffeyno_s...@gmail.com
614 268 6353, Columbus OH
http://www.carl-yaffey.com
http://www.grassahol.com
Is there any reason he can't use an old computer power cord we have
lying around for the KPA500, if it will fit the amp's power block?
Yes! A computer cord is not heavy enough, especially if you are converting to
120 from 240 configuration. Current will be DOUBLE. Just buy the cable from
I'd guess the reason is b/c most users are unlikely to use tech mode
entries all that often, and so hiding them makes the remaining items easier
to find.
73,
Matt NQ6N
On Sat, Mar 7, 2015 at 4:40 PM, Dauer, Edward eda...@law.du.edu wrote:
The K3 Owner’s Manual at p. 49 says: Most calibration
All,
Thank you for the replies. My father-in-law was able to source a 14 ga.
Server power cable locally, and will get the proper power supply fuse from
one of the many electrical supply houses here in the Atlanta area.
73 de,
--Ian
Ian Kahn, KM4IK
Roswell, GA EM74ua
Herbert and all,
There is no need for the KFL1 firmware to be open source, it is
available from Elecraft as a spare part. Elecraft will continue to
support existing KFL1-4 boards with parts (except for replacement
trimmer capacitors) for a good long time into the future.
In other words,
All,
I would like to add that the non-availability of those 1-40pF trimmer
capacitors impacts more Elecraft products than just the discontinued KFL1-4.
They were used as the nulling capacitors in all the Elecraft integrated
wattmeters, so for that application, the KAT2, KAT1, KXAT1, KAT100,
Hi,
when the 4-band module should not be developed further, it would be a
good idea to publish the firmware so that it might create a open
source project???
73, Wolfgang
DL2KI
--
73 de DL2KI
http://www.dl2ki.de
DOK K08
DL-QRP-AG #3247
G-QRPC #13541
Jabber-ID: dl...@jabber.ccc.de
GnuPG:
On Mar 7, 2015, at 11:42 AM, Richard Gillingham w...@hotmail.com wrote:
I’ll assume I won’t need the internal atu with the K3, and will add the P3
and IF out board when the time comes. I’ll get the interface cable to the
KAT500… With this bare bones K3, is there anything else that you
Just kidding Don. :-) I turned mine on when I had to and never turned
it off. Since I almost never go into the menu systems, the fact that
I'm becoming more clumsy as I accumulate birthdays hasn't affected the
performance of my K3.
My new synthesizer hasn't arrived yet, but I'm getting the
Make sure the power cord is seated firmly in the socket on the amp. My new
KPA500 had intermittent power on problems that I finally traced to the plug on
the end of the cord that attaches to the amp. I use the 220 VAC Elecraft cord.
They sent me a new cord. The new one fits so snugly I can
I've wondered why there's an OFF mode for TECH MODE. Mine's never
been off since I first turned it on. There's likely a reason, but I'm not
aware
of it.
73!
Ken - K0PP
On Sat, Mar 7, 2015 at 3:32 PM, Mike Reublin NF4L n...@comcast.net wrote:
Ted -
unless Tech Mode is łON˛ in Config. Since
No way!
I have too many passwords and PINs as it is. Leave well enough alone.
Those who are prone to inattention and fumble fingers should *not* leave
TECH MD set to ON -- do as the manual suggests.
Those who choose to leave it set to ON will just have to accept the
consequences if some
consider
the Power supply as well old electrolytic caps
will fail when I got mine from someone that didnt use it
for some time the power supply came up but the B+ was jumping
a bit I turned it off fast
may as well do the fan too
the old Heaths are good amps and not so damned heavy
Bob
While it is a loss that the 4-band module is no longer available, consider
having two individual K1 radios! You get four bands, more fun building AND
you can monitor one band while working another! Or monitor two bands
while doing something else entirely. I'm sure your wife will understand that
I'll wait... I am not in a hurry...
--
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
for MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
for Dopplergram information see:
http://groups.yahoo.com/neo/groups/dopplergram/info
for MM-SSTV see:
One can never have too many! Tonight I parked my K2 and worked SKCC using
MFJ 9040 and KX1. That leaves K1, KX3, LNR FX-2, Survivor, and OHR100A
lacking attention. Don't tell them, but they will all will be for sale at
Hamvention as I look for different toys with which to play. Stop by flea
The ARRL DX phone contest is eating 20m. Let’s not fight it. No SSB net this
Sunday. We’ll be back on March 15.
73,
Phil, NS7P
PS: Don’t forget the time change.
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Sherwood's List now shows 0.27 and 0.20 uV for the K3 (w/New Synthesizer)
...which compares very well to the 'original' K3.
73 de Pierre VE2PID
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Help:
Wes,
While I think the K1 (4-band especially!) is a
fine rig, it's luster for me was dulled a bit when
I was able to make a KX3 my primary QRP rig.
Pluses include:
* Way more than four bands
* All modes on the bands in does cover, even
digital as an option
* Superior receiver
*
For Sale a K3/100 Factory built loaded with many features in mint condition.
If interested please contact me off list for details.
73, Tony K2SG
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Help:
Measure the voltage inside the K3, at the powerpole.. you may need
thicker DC lead or clean the fuse contacts.
G1MHU
-Original Message-
From: Harry Yingst via Elecraft
Sent: Sunday, March 08, 2015 12:47 AM
To: gra...@g4fnl.co.uk ; Elecraft Reflector
Subject: Re: [Elecraft] K3
Carl Yaffey K8NU
Recording studio.
cyaffeyno_s...@gmail.com
614 268 6353, Columbus OH
http://www.carl-yaffey.com
http://www.grassahol.com
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Help:
FOR SALE: A Telepost LP-100. I'm getting a W2. The LP-100 has been
upgraded with the LP-100A GVFD Display Kit, so electrically it's an LP-100A.
It has the latest LP-100A firmware installed. It comes with the standard
2000 watt 1.8-54 MHz coupler. It was sent to Telepost for calibration.
It's
Speaking at Radiofest today, Eric said they had been surprised
by the demand for the new synths. Currently they are using most
of their supply for filling K3 orders. He expects to get caught
up with the current synth orders in April, about the time I
expect have softened up the YL enough to
On 2015-03-07 10:28 PM, Bill Frantz wrote:
Speaking at Radiofest today, Eric said they had been surprised by the
demand for the new synths.
Maybe they need to get ready for more surprises. Sherwood's new
numbers show a 6 dB lower noise floor without the preamp than the
old synth and
If you have already had the KX3 for portable use, then internal KAT3 may not be
necessary. All depends on your operation style.
73
Johnny VR2XMC
寄件人︰ Ian - Ham km4ik@gmail.com
收件人︰ 'Richard Gillingham' w...@hotmail.com; elecraft@mailman.qth.net
傳送日期︰ 2015年03月8日 (週日) 3:10 AM
主題︰ Re:
I have WAY more than two, Phil -- even after
selling the K1 and last Fall giving my NC-40A to
an old ham with no rig in Florida :-)
73, Phil W7OX
On 3/7/15 6:24 PM, Phil Hystad wrote:
but how many rigs can a body use?
More than Two. Two is justified -- one as primary rig, second as
I don't know whether it is the firmware or the hardware but the QSK even at
25-30wpm is now extremely smooth and without artifacts like pops that used
to occur.
Very, very nice!!
And I got it for the 630m support.
jim
On Sat, Mar 7, 2015 at 10:28 PM, Bill Frantz fra...@pwpconsult.com wrote:
Of more interest is that the new synthesizer numbers show 6 dB
lower noise floor without the preamp. That means much more
sensitivity on 12 and 10 meters where external noise is low.
It is also interesting that the new numbers were achieved with
AGC threshold 6db *lower* (sooner) than with the
Pierre ve2...@videotron.ca wrote:
Sherwood's List now shows 0.27 and 0.20 uV for the K3 (w/New Synthesizer)
...which compares very well to the 'original' K3.
YesIn our haste, we sent Rob a K3 with new synths but uncalibrated RX gain.
Now that the automated RX GAIN procedure has been
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