I downloaded the zip file and unzipped it both with Stuffit Expander and with
the terminal method and got a .jar file I could double click. However,
double clicking on it only brings up a blank purple window with the title
info. There are no info boxes or any other way to access the program. I
Dave G4AON wrote:
There are still issues to be resolved, one I would like fixed is the
inability to adjust power while transmitting data which is tedious.
There are published items on the to be implemented list such as the
TCXO calibration to 0.5ppm.
I hope I'm not missing
Hi Stephen
I am feeling much the same about my K3's noise blanker. I live in a semi rural
area with many poorly maintained power poles and many electric fences. The
noise types and frequency varies on a day to day basis. I find the K3's DSP
blanker to be much more effective than its IF
Stephen Prior wrote:
This is a 'me too'.
[snip]
But, the NB and NR
have not lived up to my (maybe unrealistic) expectations.
I have never made much use of the noise blanker of any radio. It never made
a difference to the kind of noise I experience, which is a bit like a
close-up
The 2SC1969 is available and in stock at MCM:
http://www.mcmelectronics.com/product/2SC1969
I imagine substitutes are available but I can not comment on this.
Perhaps the current BOM for the K1 kit would reflect such a component change.
I did not look to see.
73 Steve KZ1X/4
K1, K2, K3, etc.
Hi DW,
When I installed Don's Fixed Audio Output board I didn't want to drill any
holes in my K2 either.
Instead, I routed the output to one of the two existing holes on the back
panel which I terminated in a RCA phono jack. The other hole got a
miniature (not pc board miniature, the old
A very interesting read, I have a couple of questions about practical
considerations.
The number one rule I look at all antennas with, is that all antennas
are a compromise. Let me know if I am getting off on the wrong foot here.
I like ladder line fed to various antennas (Horiz. Loops,
Set the PWR control to 100w (or 120w if you wish) and control the power
output using the MIC level control on the front panel. (MIC SEL = LINE IN).
Or is that classed as cheating? :-)
Yes, I think it is :-)
The problem with this approach is that over time the slow ALC loop may
try to build
Hi Jeff,
Looprecorder (http://looprecorder.de/) is great for this. You can set it up
to save at any interval, like once an hour adding the hour in the file name.
Another good use is to have it loop record the last 10 minutes whenever you
are active, that way you can always go back to verify a
David,
The Wireman has a lightning arrestor for use with ladder line - it looks
very much like a pair of spark plugs mounted on a piece of copper. It
does not ground the ladder line, but it does provide suppression for
lightning surge voltages.
You may have better luck with a 1:1 balun
Bob Pence
Surf a world without wires. Click now for great wireless Internet solutions!
http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3mFpjAwvM6XrEBaZv7VIZRqla7z9cZazdR3bhYttwj1Cd5Nw/
The K3 operating tip regarding PSK setup:
http://www.elecraft.com/K3/k3_operating_tips.htm#psk%20audio
really does need to be updated. It was written before the ALC system
changes that came with MCU 1.87.
Bob NW8L
On Mon, Aug 18, 2008 at 8:15 AM, Lyle Johnson [EMAIL PROTECTED] wrote:
Set the
Hi David and all,
I have done a lot of EZNEC dipole simulations and have come to the
conclusion that the loss in 100 feet of coax off of resonance is about 12 dB
per 100'. Whether you use RG-8x or LMR400 doesn't make too much dfference
concerning losses off of resonance where your SWR with 50
Steve,
With all due respect, the problem isn't with the coax, it is with the
antenna which is designed poorly for the frequencies of operation.
Even traps in a decent multiband antenna design, fed with coax, wouldn't
have a 6db loss of the ladder line you're claiming is OK..
73 de
Both K3s played very well during the NAQP SSB this weekend (675 Qs, 120
Mults, 8 hours). I don't normally play in the SSB tests, but I had to miss
the NAQP CW and just needed a radio fix. On 20M, the DSP (with 2.8khz
filter) filtering really helped. I played with the high and low passband
I've had the same problem with #1239. I have made some observations about
it.
1) It does not involve the KPA3.
2) The behavior is as if the power had been set to 0.0 by a program bug.
Cannot hear the carrier externally on CW -- when it's working I CAN hear the
carrier with power set to 0.1 w
David, Industrial Communications Engineers (I.C.E.) makes a couple of open
wire arrestors that I think are well designed. On both legs of the open
wire they feature a DC short to ground (inductor) on the antenna side that
helps drain static ( and resulting noise) from the antenna, a gas tube to
Observations on KAT3 in #1239
Does not always set to 1:1 (think that is to be expected, particularly if
close to 1:1 in bypass -- it has discrete values to switch in and out, not
continuously variable components like my ATR-30)
Sometimes it will not get started. This is usually someplace where
For long horizontal lines near to the ground (3ft, 1m, say) I've read that
some folks rotate the line between supports, supposedly to maintain balance;
what do you think about that?
David
G3UNA
- Original Message -
From: list1 [EMAIL PROTECTED]
To: Elecraft Discussion List
Hello Brian,
I meant to write that 50 feet of coax would have _NO_ more than 6 db of loss
with a dipole off of resonance.
A multiband (ie. trapped) antenna design will work fine (with coax) if
designed and built properly. But a dipole with ladderline is a lot simpler
and matched and mismatched
On Mon, 18 Aug 2008 10:29:21 -0500, list1 wrote:
I have done a lot of EZNEC dipole simulations and have come to the
conclusion that the loss in 100 feet of coax off of resonance is
about
12 dB per 100'.
Off resonance is a very broad description. Loss in coax only begins
to increase
I just started noticing that I get a quick message of ERR PL 1 when I
change bands. When I hit the band switch to go up or down it says ERR
PL 1 then shows the frequency.
I recently went to Version 2.23, but went back to 2.22 and have the same
message popping up.
Is this normal?
Rich -
The commercial radio installations I've seen never did that. There might be
a dozen open wire lines running in parallel along tall poles for hundreds of
yards or meters, but each open wire pair was five or ten times its spacing
from the others.
Almost all of the RF field is between the two
Well a reload of 2.23 appears to have solved the problem.
Rich - N5ZC
Richard Thorne wrote:
I just started noticing that I get a quick message of ERR PL 1 when I
change bands. When I hit the band switch to go up or down it says
ERR PL 1 then shows the frequency.
I recently went to Version
On Mon, 18 Aug 2008 11:27:17 -0500, Bob Evans wrote:
Unfortunately, I was not able to go full SO2R with my new microHAM MK2R SO2R
box and N1MM DVK because of RF feedback getting into the audio lines. I had
the same problem with my DXdoubler, so I know it is not the microHAM box,
Don't be so
I just started noticing that I get a quick message of ERR PL 1 when I
change bands...
Is this normal?
No. Try re-running VCO Cal. If that doesn't fix it, please contact
k3support.
73,
Lyle KK7P
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Post to:
Chuck - AE4CW wrote:
David, Industrial Communications Engineers (I.C.E.) makes a couple of open
wire arrestors that I think are well designed. On both legs of the open
wire they feature a DC short to ground (inductor) on the antenna side that
helps drain static ( and resulting noise) from the
On Mon, 18 Aug 2008 09:42:29 -0700 (PDT), Guy, K2AV wrote:
Would really love to solve this before the contest season.
If you haven't already done so, you should definitely call Elecraft
support. When describing your problem, tell them that we've talked
about it, and that MAYBE there is
Another reason to twist flat TV twinlead and the currently popular
window ladder line is to prevent flapping' in the wind. This it the
same reason flatbed truckers twist their hold-down straps.
73! Ken Kopp - K0PP
[EMAIL PROTECTED]
___
Elecraft
On Mon, 18 Aug 2008 14:11:05 -0400, hank k8dd wrote:
Wow, Jim, how did you get your K3 back to them so fast?
My neighbor works there, and he dropped it off for me. There IS a
queue, so I don't expect to have it back real soon.
73,
Jim K9YC
___
That's important!
ICE says that they will work with impedances of 300-600
ohms. Although the characteristic impedance of a line may
be within this range, the impedance *seen* at a particular
point could be very high or low.
Multiply line SWR by line impedance. Most ladder line is
around
Hello all,
The Great Outdoors Radio Club - GORC pronounced (GORK) now has the GORC
Iditarod 2009 Challenge Website online! The GIC-2009 is the amateur
radio version of the real race held in Alaska. To enter this challenge
and for additional information, please click on the link.
Unfortunately, I was not able to go full SO2R with my new microHAM MK2R
SO2R
box and N1MM DVK because of RF feedback getting into the audio lines. I
had
the same problem with my DXdoubler, so I know it is not the microHAM box,
Don't be so sure of that. MOST ham rigs and ham accessory boxes
Thanks Lee. What you've described is a classic example of a pin 1 problem,
and your solution was a good one. That is, you gave the cable shield a good RF
path to the chassis and removed the path to the circuit board. The cap from
the hot to ground MAY have mattered, but I'd guess a lot less
On Mon, 18 Aug 2008 15:35:55 -0400, W8JI Tom wrote:
If the 12V supply has a ground connection common
to the negative lead post on the supply (or through other gear) the V- lead
voltage drop can cause a pin 1 issue from dc potential that varies at an
audio rate.
YES!
There's a similar
Lyle Johnson wrote:
Set the PWR control to 100w (or 120w if you wish) and control the power
output using the MIC level control on the front panel. (MIC SEL = LINE
IN).
Or is that classed as cheating? :-)
Yes, I think it is :-)
The problem with this approach is that over time the
Ron,
Very pretty job! Do you recall the (approx) capacitance range of the
split-stator and link capacitors? Also, your pdf file says 3 acrylic
tubing for main coil. Is it 3 or 2 ? How many turns on your 10
meter and 160 meter coil and link? (I assume the pictures show the
80-10
I am the happy owner of K3 #340. I also own a Kenwood TS 830S, which is one
fine radio, even in 2008 (see Sherwood's tables for performance figs.).
However, I have never had much success with the 830's noise blanker, and
usually don't bother to turn it on; whereas with the K3's noise
Ron,
Very pretty job! Do you recall the (approx) capacitance range of the
split-stator and link capacitors? Also, your pdf file says 3 acrylic
tubing for main coil. Is it 3 or 2 ? How many turns on your 10
meter and 160 meter coil and link? (I assume the pictures show the
80-10
Hi David
I use the window line on a number of my antennas.
I twist the lines as a matter of course, the idea being
to somewhat equalize any unbalancing effects of
things in the nearby fields as the line passes by.
No scientific evidence that this is of real benefit, but
it makes me feel that I
For the trackers out there, I received a Katiegram about four hours ago
for my KRX3 ordered on the 28th of April, 2007.
However I've asked Elecraft to wait until other missing stuff is ready
to ship...
vy 73 de toby
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Elecraft mailing list
Post
For the trackers out there, I received a Katiegram about four hours ago
for my KRX3 ordered on the 28th of April, 2007 with pre-payment.
However I've asked Elecraft to continue to wait pending other missing
stuff...
vy 73 de toby
PS: Push wrong button - post twice... sri
--
DD5FZ
K2 #885
but if you know when you started your recording and you know when the
QSO is, it should be easy to find the QSO, shouldn't it? All recording
programs I've used have track times.
--
Anyone can do any amount of work, provided it isn't the work he is
supposed
to be doing at that moment.
Hey All,
Has anyone seen their AM filter yet? Mine was 3-4 weeks back ordered
on July 8. Just curious. 73.
In His service,
Jim Cundiff
K3 #1264
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I understand that the I / II switch on the K3 switches the last two used DSP
filter settings and crystal filter selections. I am having a little trouble
understanding how this switch is useful. Could someone explain its practical
application? Most of my operating is chasing DX and
Tom writes:
Be especially aware that rigs with external 12V supplies can
develop what sounds exactly like RFI from pin 1 problems.
This is because the power supply leads of the SSB radio are
current modulated at an audio rate. If the 12V supply has a
ground connection common to the
This is a particular problem with transceivers that have a
single V- lead and only one pin for the V- connection
(like
the K3). If the negative lead connection is not
absolutely
perfect other ground paths (e.g. the shield on a
microphone
cable) through accessory equipment will carry a portion
I have mine set up fairly spartan, I think.
I is 700 Hz on CW, 2.7 KHz on SSB and 1.0 KHz on Data
II is 400 Hz, 2.6 KHz, and 1.0 Khz on the same settings.
I guess going between the two is a lot easier or quicker than turning the
Bandwidth knob.
They used to get a lot of use (actually #I
I have just completed an Elecraft XV144 transverter and it is working with my
K2. Now I want to use it with my K3, but I am uncertain how to wire the
connector cable at the K3 end. I think the correct connections are as follows
using the ACC connector on my K3:
ACC Pin 2 - Auxbus: connect to
Larry,
I guess it depends on how you operate. I'm also a DX/Contester
(mostly the latter) and I never found the alt I/II useful for my style
of operating either.
I have the BW pre-set along with the frequency in the number keypad
(which I use as my bandswitch). When I'm on CW, I is equal to
I received 5 xtals with my k3 which I am assembling.
Two had offsets marked on the side, these were the elecraft 2.7 and .2.
Three from Inrad (1.8, 1, and .4) did not have a sticker with offset on them.
Maybe these did not go thru the test at elecraft? Do xtals always come with
that white
Three from Inrad (1.8, 1, and .4) did not have a sticker with offset on them.
The 8-pole filters have no offset, please use 0.0.
73,
Lyle kK7P
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The Inrad filters do not have the offset. Use the
Zero setting for them.
Cookie, K5EWJ
--- Kenneth Waites [EMAIL PROTECTED] wrote:
I received 5 xtals with my k3 which I am assembling.
Two had offsets marked on the side, these were the
elecraft 2.7 and .2.
Three from Inrad (1.8, 1, and .4)
Does Elecraft cycle on and off and burn in factory built K3's for a number of
hours or do they assemble the units, turn them on, make sure they work, and
ship them out?
Good question.
Any one know the answer?
Bob, K9PAG
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I've got a situation where I might need to operate my K3/10 on a battery.
Since it's a one time (likely) deal I don't really want to drop a wad on
this.
I've got a 5ah gel cell that I could use. If pressed I could make a
connection to the car accessory output aka cigarette lighter in the back
Hi Jim
I ran my K3/10 on battery for FD.
I used a bigger battery though, 20AH.
The receiver draws more current than
my K2, so I figured a bigger battery
would keep me out of trouble during the
weekend.
You will have around 900mA drain in
receive, and 2-3 amps in transmit.
You could work that out
Thanks for replies on 8 pole xtals offset = 0.
Now, it seems I have a packing mistake.
I have the KAT3, but only one SO239 was shipped. I installed it at ANT1.
In the KAT3 packet, I find the KAT3 circuit board, the install instructions,
and a packet of hardware labled hardware for KPA3. It
It's on page 74 of the owner's manual, in the Crystal Filter Installation
Appendix.
5-pole filters have a FREQ OFFSET marked on the side of one of the crystals,
e.g. -0.85.
The offset for all 8-pole filters is 0.00.
Dick, K6KR
-Original Message-
From: [EMAIL PROTECTED]
Mike,
I have not done it, but I too can read schematics - I checked th eKIO2
interface connections and the KPA100 AUX I/O pinout to resolve any
conflicts.
In this particular case, you should believe the schematic - the XV
series owners manual text is incorrect (Ron, if you are listening,
The obvious solution is just to use the K3 +12VDC output connector for
all accessories. It's rated for 0.5A which should be plenty for most
devices. As a bonus it's controlled by the K3 ON/OFF switch.
Al N1AL
On Mon, 2008-08-18 at 16:47, Joe Subich, W4TV wrote:
Tom writes:
Be especially
K5WK inquired:
I received 5 xtals with my k3 which I am assembling.
Two had offsets marked on the side, these were the elecraft
2.7 and .2.
Three from Inrad (1.8, 1, and .4) did not have a sticker
with offset on them.
Maybe these did not go thru the test at elecraft? Do xtals
always
Alan writes:
The obvious solution is just to use the K3 +12VDC output
connector for all accessories. It's rated for 0.5A which
should be plenty for most devices. As a bonus it's
controlled by the K3 ON/OFF switch.
Unfortunately it's not that easy. The +12VDC output is
not +12V -
On Mon, 18 Aug 2008 18:21:27 -0700, Lyle Johnson wrote:
The 8-pole filters have no offset, please use 0.0.
I beg to differ. Based on rather careful measurements, my 400 Hz
8-pole filter needs an offset of .045 to center it with the DSP
filters. I don't recall whether I settled on .04 or .05.
Tom writes:
It's just silly to design an audio interface device that
commons the shield of audio lines to multiple pieces of gear
or to the cabinet, but that is how Ham accessories are
usually made.
The transceiver manufacturers generally force that design by
using unbalanced audio
Jim
My K3/100 works fine on a leisure battery (110 Ah), there are no nasty
surprises on lower voltages with the K3 quite happy on 11 ~ 11.5 volts.
Whether a battery is happy with low voltage is another matter! Your
K3/10 should be fine from your van battery for that short time. The
rule of
Ken,
I built my K3 10 days ago. There is one so239 in the KPA3 bag. But
there's another one in another bag. I don't remember which one it was
packed in but I found it. You'll find it too.
73
Arie PA3A
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