Fern Rivard wrote:
I fail to understand what the big complaint is with low ssb power with your
K3. My K3 is serial 4XX and have had it for approximately 2 months. My output
power is identical on ssb as it is on cw. I have refused to download any of the
new firmware as my radio has been
I would be tempted to replace the 120VAC relay with a dc relay and key it
directly from the rig. Don't forget to fit a diode across it to squash the
back emf. This may have other ramifications and might not be this simple,
but it's well worth consideration.
David
G3UNA
The FAQ for the K3
Thomas Norff wrote:
IMHO it would be neat to have a 'dynamic' tuning rate.
If the system would monitor your 'speed' while turning the knob it would be
possible to increase the speed
I was surprised that even the K2 didn't do it. The Sangean 803A (and
other brandings of the same hardware),
Some lack of communication between Greg and Wayne I expect regarding the
published figures. Luckily, this is a simple thing to fix one would hope. I
sent in a list of relay transit times on 2nd April.
It was quite clear that 20mS was needed for the smaller coaxial relays like
the very commonly
Hi George,
you are right with 20ms limit, it is also little bit short for complex
system like VHF/UHF EME station or similar extreme.
But we can use TX INHIBIT if delay is not enough, signal for this can
be genetated by some additional contacts of final relay.
So I suppose there is way not
A good book to read because of the lack of contacts possible for common
G-stations who are never DX to anyone? Not an issue for TF3KX.
Seriously, a wire dipole antenna and some means of attaching it to supports.
Open wire and coax feeder. A balun (I have the auto ATU). DC lead and PSU.
Key,
n4lq wrote:
Nowadays a lot of hams have amplifiers, tuners and rotary beams that
follow the bandswitching. Imagine what happens to all those relays and
motors when quickly scrolling through each band.
The K2 (current firmware) defers any internal relay switching until
about 0.5 seconds
Fern, I urge you to keep up-to-date with the firmware, maybe not
updating immediately new firmware comes out (as on the very day), but
certainly within a few days (weeks at most).
A lot of us will download ASAP in order to help spot problems and
advise Elecraft accordingly, only with our
..and a small power supply.
Just bought the MFJ-4125P which at 1.3 kg or 2.9 pounds is light and small.
Comes with Anderson Power Poles at the front. Switchable 115-230 V
Drawbacks are a noisy fan (with medium duty use a series resistor to the fan
cuts noise) and MFJ so far has not supplied an
George wrote:
The FAQ for the K3 promised a 0-50 ms amp keying delay. We got only
0-20 ms in the latest release.I don't think 20 ms is enough in my
case, based on my primitive research. Several experts have said mine
might need as much as 30-35 ms. My amp's relay is a 30 yr old Potter
I will be there too.
At 5/8/2008 10:23 PM, Dick Dievendorff wrote:
I'll be there.
Dick, K6KR
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Julius Fazekas
Sent: Wednesday, May 07, 2008 8:51 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Dayton
A type of antenna that I keep packed for use at short notice is a halfwave
centre fed dipole for use as a vertical, where part of the coax feeder forms
the bottom half of the dipole. With this arrangement the coax feeder comes
away from the bottom of the antenna not from the centre, radials are
hi all,
On 8 May 2008 at 5:43, Mike Scott wrote:
I liked the K2 Bluetooth serial adapter project.
I Googled Bluetooth serial adapters (there are quite a few) and ran
into an A7 Engineering product.
http://www.a7eng.com/products/embeddedblue/serial/eb501-SER.htm
It is lower cost than
At 5/9/2008 07:22 AM, Dr. Werner Furlan wrote:
hi all,
On 8 May 2008 at 5:43, Mike Scott wrote:
I liked the K2 Bluetooth serial adapter project.
I Googled Bluetooth serial adapters (there are quite a few) and ran
into an A7 Engineering product.
Summer means beach time here in the Carolinas. I take my K1, lightweight 20m
dipole (K1 ATU tunes to all 4 bands), Palm Mini-Paddle, 5.0ah gel cell,
earphones, bungee cords and a couple of telescoping lure retriver poles:
Ian,
Your remarks are quite appropriate.
My question to those needing 50ms delays is: What are you doing now with
your XYZ radio?
The sequencing problem for complicated VHF/UHF setups is complex. Just
delaying the RF out of the transceiver is an unlikely complete solution.
It almost always
Geoffrey Mackenzie-Kennedy wrote:
A type of antenna that I keep packed for use at short notice is a
halfwave centre fed dipole for use as a vertical, where part of the coax
feeder forms the bottom half of the dipole.
How do you terminate the radiating part of the coax? I've tried antennas
While playing with my K3, I selected 5.0 mHZ for WWV using manual Freq
ENT. When I then changed bands with the rocker switch the bands would go
from 80m to 5.0 to 40m. I vaguely remember seeing one of the 60m freq
5403.5 when I first fired up the rig back in March. Did I inadvertently
erase
Something I don't get... if flashing a new firmware version is so easy
why wouldn't someone want to try the latest version, knowing they can
go back to the old one if it doens't work out? I would think it would
be fun.
73,
Drew
AF2Z
On Thu, 08 May 2008 08:37:15 -0700, Dave W7AQK wrote:
As for
K3KO wrote:
I don't understand why people are so adverse to using the inhibit line
provided by the K3.
It will prevent hot switching.
BTW people using AC relays should be aware that they will also operate
just fine on DC. (115vac relays work fine on 24VDC). Once converted for
No lack of communication. :) Many people were asking for some amount of
adjustability. Up to 20mS is what Wayne could do and get it out quickly. I
believe he still plans to increase this but the code is going to be more
involved.
The item is still on the list.
-
Surely a 21st century top of the range transceiver like the K3 shouldn't
be expected to cater for old slow amplifiers. In the case of new
amplifiers the buyers need to specify they want QSK capability. The
message will eventually be circulated that slow switching linears aren't
wanted!
I've
Channel Hopping doesn't work yet. It's on the fixit list.
matt zilmer, W6NIA
From: [EMAIL PROTECTED]
Date: 2008/05/09 Fri AM 07:44:17 CDT
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 60m setup?
While playing with my K3, I selected 5.0 mHZ for WWV using manual Freq
ENT. When I then
Why is fast switching necessary? This sounds like the planned
obsolence that Microsoft and other corporations encourage.
And ACOM even has provision for routing T/R switching through the amp
in most of their amps.
This attitude is nonsense.
73, doug
Date: Fri, 09 May 2008 15:56:47 +0100
CW semi QSK and QSK. What's the point of having the feature in the
transceiver only to have to revert to manual change over when a linear
is used?
The Acom 1000 with operate full QSK with the K3 without a problem.
73 Dave, G4AON
K3/100 #80
===
Why is fast switching necessary? This
Guys,
I donot understand this discussion.
Someone asked for a delay longer than 20ms. It's not in the formware
(yet).
That's it.
73,
Arie PA3A
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You must be a subscriber to post to the list.
I just one to make a point that there are so many older amplifiers out there
(SB-200, 220, 221 to name a few) that it will take another decade (if not more)
to get them all out of circulation. Why? Because they are cheap right now.
Look at the price of an Acom, Alpha, or a QRO and the
Lee Buller wrote:
I am just not sure how they are going to work out the Knife Switch issue.
K3relay (open frame)solenoidknife switch
Should work fine.
73 de Philip
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You must be
David Woolley wrote:
n4lq wrote:
Nowadays a lot of hams have amplifiers, tuners and rotary beams that
follow the bandswitching. Imagine what happens to all those relays and
motors when quickly scrolling through each band.
The K2 (current firmware) defers any internal relay switching until
True, channel hopping isn't yet implemented in firmware (nor is
stopping for strong stations when scanning).
Also, others have reported the same problem of BAND switch going to
out-of-band previous stops, like WWV. We have to wait for that too.
Best to be thrilled with what you have, and
Ian White GM3SEK wrote:
That is correct. Attempting to switch 120V AC will damage the K3, and an
intermediate relay will add even more delay.
snip
Amplifiers that require high-voltage, AC or negative switching are 30
years behind the times. If the owner wishes to use the amplifier with a
Hi George!
We start to bump up against shortening the first dit on CW when delays
longer than 20 mS are selected. We'd certainly like to support longer TX
delays, but it will take a little head scratching and f/w work to make
it happen. We'll certainly strive to do as much as we can in this
Greg - AB7R wrote:
No lack of communication. :) Many people were asking for some amount of
adjustability. Up to 20mS is what Wayne could do and get it out quickly. I
believe he still plans to increase this but the code is going to be
more involved.
The item is still on the list.
If you and other members on the list can send me the max delay supported
by other rigs currently on the market, that will help us figure out if
this is reasonable.
Hi Eric - I have looked at this (part of my effort to make a QSK mod to my
ALS-600). I found the following:
IC-706MKIIG: 13ms
I have just put the K3 on the air for the first time after
downloading all firmware upgrades. When I hold TUNE pwr is at 0 and
rotating the PWR ctrl gets it to a desired output just fine. when i
go to retune it is back at 0 watts and I have to rotate the PWR knob
each time. What is the way
Yes,
Hold down the menu key to enter the config menu. Rotate VFO B knob until you
find TUN PWR set this setting to your desired tune power. I hope this helps.
Mike N8XPQ
Todd Ruby wrote:
I have just put the K3 on the air for the first time after
downloading all firmware upgrades. When I
Hello Jon,
My apology for a slow response, waging war with the grass all day!
To terminate the radiating part of the coax I use a high impedance trap
whose inductance is a length of the incoming feeder wound as a solenoid,
with the turns spaced slightly. To determine the capacitance required
Hi,
Should be something stupid - worked FB yesterday, no changes since then.
Works FB from A and from B, nothing happens when split is activated.
All bands.
Only thing different from yeste4rday -started on new band RTTY (12m - no
QSO with K3 there before) - had to change to FSK-D.
Firmware -
For you folks running AMD CPUs and Windows XP, here's an article from InfoWorld:
XP SP3 cripples some PCs with endless reboots
http://www.infoworld.com/article/08/05/09/XP-SP3-cripples-some-PCs-with-endless-reboots_1.html?source=NLC-DAILYcgd=2008-05-09
73,
Steve NN4X
EL98jh
Hi
Is there upto date documentation on what is in the k3 menus
.. I cannot find the option which allows cw transmission from within
ssb mode .. which would be quite useful for our cw improvers net where
we switch back and forward from phone to cw all the time ...
there must be other additions tot
The cw keying in ssb modes feature is documented in the firmware
release notes at:
http://www.elecraft.com/K3/k3_software.htm
including instructions for controlling the feature via the CONFIG:CW
WGHT menu.
Look in the section for release MCU 1.87 / DSP 1.69.
Bob NW8L
On Fri, May 9, 2008 at
Next week is an anniversary of sorts. It will have been a year since I first
put my hands on a K3 at Dayton. N6KR was pretty busy at the Elecraft booth
but I did have an opportunity to tell Wayne that I considered the K3 a
risk-free investment. Only a couple of weeks prior, on May 5, 2007, I
To make a coaxial dipole strip the external insulation from the end of
your coax to a length about 10% longer than 1/4 wave. This leaves just
shield (braid), center dielectric, and center conductor.
push back a bit of the braid so it increases in diameter. Fold it back
over itself and
Still trying to align the filters on my K2, but was getting no
indication the Frequency Counter Probe Assembly was working. So I
ordered a new and and still nothing (when touching the side of C22, when
doing Cal Fctr or Cal Fil). Removed the DSP filter, AF filter and
Control Board. Cleaned
Please pardon the OT bandwidth. Although, even if you don't have our K2
Internal Mic Adaptor, you still might find this latest app note informative.
It addresses configuring the jumpers, in the context of possibly *DAMAGING*
a dynamic microphone by mistakenly applying external bias.
See
And if you accomplish the very accurate building instructions from Brian,
twice, and feed it as a dipole, but with a half wave wire fed in the middle,
and add a quarter wave wire on each end, but make the joining very sturdy, you
now have a very good, but low profile gain antenna on ?? what
I received my Katiegram.
Ordered 29 Dec 2007
Katiegram 9 May 2008
Forrest WA3FAE
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___
Elecraft
Ah, slip of the fingers,
Ordered 19 Dec 2007.
Sorry.
Forrest WA3FAE
wa3fae wrote:
I received my Katiegram.
Ordered 29 Dec 2007
Katiegram 9 May 2008
Forrest WA3FAE
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Sent from the Elecraft
I'm pleased to announce that the construction of K2 SN 6281 has been
successfully completed by the students of the Dos Pueblos Amateur Radio Club (
Dos
Pueblos High School, Goleta, CA) with the new Call Sign of KI6PRK, and is now
on the air. The newly completed rig is a K2/10 with KAT2,
Greg wrote:
hahahaha... No problem Dick. Good night.
Sounds like you may be OK now. Start using your new rig but let us know
if the power problem creeps back in.
73
Greg
AB7R
- Original Message - From: Dick Roth KA1OZ [EMAIL PROTECTED]
To: Greg [EMAIL PROTECTED]
Cc: [EMAIL
I was determined to remain a steadfast QRP'er, but the current conditions
finally took their toll. so I ordered a KPA3.
Received it today and installed it always wondering what I would screw up.
We OF's (Old Farts) have a habit of doing that. Everything went well, and
it works!
Thanks
Is the power switch itself flakey? 73, Jim
- Original Message -
From: Dick Roth KA1OZ [EMAIL PROTECTED]
To: Greg [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]; Elecraft Reflector
elecraft@mailman.qth.net
Sent: Friday, May 09, 2008 8:59 PM
Subject: [Elecraft] Re: ERR VCO
Jim Miller wrote:
Is the power switch itself flakey? 73, Jim
{snip}
It doesn't appear to be flaky. Each an every time I press it, there is
a change of state of a relay somewhere in the rig, and each and every
time I press it, the power supply shows a draw of an amp or so. Its
just
I tried using the quick memories 0-9 to store band data, modes,
filters, and other parameters (Douglas Zweibel's message of March 10).
Then I thought about how most bands are split into CW and phone sub-
bands that need separate mode and filter settings. So, I took it a
step further. I
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