This sounds like you are damaging the screws slightly when you loosen/
tighten them? Presumably, before they started rusting, the bare metal
was shining through the black?
If that is the case (sorry, no pun intended), then I suggest you don't
have a good Philips #1 screwdriver and its
Hi,
The case screws rusted as well in my K3. Elecraft has sent me replacement
screws.
The quality the case screws needed to be addressed. I trust good quality case
screws would not cause Elecraft too much costs.
73
Johnny VR2XMC
--- 2009年5月26日 星期二，davidvk...@virginbroadband.com.au
I've been using a SEC-1235 with my K3 for over a year now. Works great with
no switching noise. I did modifiy the power supply by adding a PowerPole
output connector pair on the rear. I also made a simple mod to the SEC-1235
fan circuitry so the fan runs slowly all the time, but can still go
Hi Gary,
It is possible and called Channel hopping manual pg.40.
Memories should be within 1 band and text-tags should start with a *.
VFO A than rotates through and monitors those memories right away (without
having to push MV)
I think i'ts a bit cumbersome so I prefer using the bandswitch
It would be useful for those who use switching power supplies to
mention on what band(s) they've noted no switching noise with their
particular choice.
73 - Steve WB6RSE
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I have been using the Alinco DM-330MV.
Have worked all bands (just got a 12 m QSO today) that the K3 covers.
No switching noise noted.
Most operation has been 80, 40, 30 and 20 m.
Enjoy having the meter and ability to vary the output voltage.
Ty, W1TF K3 #696
Frank -
No minimum power requirement for BPSK31. I've made QSO's with 1 watt using
my Softrock SDR radio. Good propagation and a good antenna and patience help. GL
KG4LCF, Larry
[Note: All of this applies to my K2 as well]
FWIW: I'm trying to get N1MM Logger working with my K3. I have three
USB-serial adapters [ two of which are just a cable with a USB-A on one
end and a DB-9 on the other with a chip inside the DB-9], and one of
which came from Elecraft and comes up
I use the Digital Filter Width and center quite a bit in Digi Modes.
Reducing the sensitivity of the BW center control would make operation a lot
easier. When set to minimum-narrow BW the width control is much to
sensitive.
Well I do love my K3 anyway!
73 de Fred KC2QFR
I have a pound spool of Mulicore solder I'm looking for info on! It smells
odd when used and the flux doesn't work too well. Numbers on end of spool
below:
Sn63X32B, 21 swg guage
then numbers: D973/815
Anybody have any clues?
73,
Sandy W5TVW
This afternoon my K3 was on 6m SSB receive and burst into continuous
transmit with a tone output, this wasn't from catching the Morse paddles
as it was a continuous tone. The only way I could stop it was to turn it
off. Unfortunately it seems to have fried my external 6m pre-amp which
was
In a recent message, g7vjr mich...@g7vjr.org wrote ...
On returning to England I can see that the salty, humid air has done
some damage to the K3, and caused the black case screws to rust.
I cannot remember this ever being an issue with the K1 which uses
similar screws, nor with the pan-head
I also found all the countersunk case screws rusted after about 4 days in
Sierra Leone last October - very humid country of course. I repainted them
when I got home. Of more interest perhaps - I also did a careful check of the
whole K3 to see if humidity had attacked it in other ways but all
OK - I've not heard any switching power supply noise from the SEC-1235 on
any band from 160-6 meters.
Phil - AD5X
It would be useful for those who use switching power supplies to
mention on what band(s) they've noted no switching noise with their
particular choice.
Fred,
I use KUSB with K3 and have no trouble sending CW from N1MM using RTS and
DTR from a WinXP laptop. Just letting you know that it *can* work.
73 -- Brian -- K1LI
Snip:
I was surprised the KUSB from Elecraft doesn't work for the logger-rig
interface. I guess all USB-Serial adapters are
When I see as many posts about a single subject as I see on this one, with
as simple as answer as is available, IMHO it's time for Elecraft to step up,
and use stainless steel screws.
Not everyone operates in low humidity or air conditioned environments, and
the cost, especially in the quantities
I had missed that!
73 de M0XDF, K3 #174
--
Don't look forward to the day you stop suffering, because when it
comes you'll know you're dead. -Tennessee Williams
On 26 May 2009, at 13:26, pd0psb wrote:
Hi Gary,
It is possible and called Channel hopping manual pg.40.
Memories should be
We're looking into this.
73,
Wayne
N6KR
S Sacco wrote:
What about it, Eric? How about a K3SS (SS for stainless screws
:-) )
model?
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I would be happy to have an additional coarse tuning rate of 1
MHz-per-turn, no matter how it is implemented, either by spinning the
knob faster or pushbutton selection.
73,
Drew
AF2Z
On Mon, 25 May 2009 12:03:46 -0400 (EDT), Mike AC6JA wrote:
I was wondering if the K3 VFO tuning rates
Correct, Van. The default for DIGOUT1 is floating (high resistance), or
OFF. If turned ON for a given band/antenna, it will provide a low-Z
path to ground to control an external switch. You may need an
additional series resistor depending on the switch type.
Among other possibilities, DIGOUT1
I am looking for a KX-1 with tuner paddle.
73,
Ron
AE6RH
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I think I used that about 30 years ago. If it's the same as I'm
remembering, it was an early attempt at a no-clean solder, ie it left very
little residue and did not require cleaning. It didn't work for me and I
sent it back. I think the flux wasn't aggressive enough for what we were
Thanks Howard - seems to work fine as I have ACLog and K3_EZ running and
connected at the same time. Now I need to figure out why K3_EZ keeps
messing the band map in the K3.
Let's say your K3 has one 9pin RS232C port, and you want to connect it to
your amplifier so the amplifier will always
Hi Wade,
While using the monitor feature to listen to my audio, I had my head
phones on in transmit. The ext speaker doesn't cut out during
transmit.
Correct. If SPKR+PH is ON then the speaker is active when the
headphones are active.
Tx or Rx is not a condition of making the speaker
Hope I can reply from digest mode...
From: Frank MacDonell kd8...@gmail.com
My K3 works well for CW at 5 watts but it seems I cannot get through
to stations using PSK 31. Is there a minimum power level suggested for
PSK31? Can you run QRP for Olivia? Thanks everybody!
--
Frank KD8FIP
I've
Hi All,
Wayne says he's looking into this, which would be great!
I'll tell you though, there is a big difference between just
plain old humidity and salt air! I don't think backpacking
in damp forests will even come close to causing the problem
that just a little exposure to salt air will
Not being a metallurgist I have no business posting on this subject,
other than in recalling past experiences with dissimilar metals.
I specifically remember a stainless steel ball-mount quickly digesting
an aluminum bumper in the presence of everyday moisture and air.
For the price of a few
Willis 'Cookie' Cooke
K5EWJ
--- On Mon, 5/25/09, WILLIS COOKE wrco...@flash.net wrote:
From: WILLIS COOKE wrco...@flash.net
Subject: Re: [Elecraft] Switching PS with the K3 - thoughts?
To: Don - K2PMC k2...@arrl.net
Date: Monday, May 25, 2009, 7:50 PM
I have been using a JTPS28 since
Hello All;
I am a new K3/100 owner (sn 3045) and a relatively new ham. I come
from an art background so please forgive my ignorance.
I use my K3 mostly for soundcard digital and I've noticed something
peculiar. Wayne suggests setting the soundcard's outputs (Master
Wave) to 50% and use
Hello Eric!
I use my K3 mostly for soundcard digital and I've noticed something
peculiar. Wayne suggests setting the soundcard's outputs (Master
Wave) to 50% and use the Mic Gain to drive the output until either 4
bars of ALC show
Correct.
or the output power level is just below
David W7AQK wrote:
So, this has been a whole new experience for
me--keeping up with rust an corrosion in salt air
environments--and it can darn near be a full time job!
---
That's why ships prefer bronze or brass for any exposed fittings. Stainless
is
ac...@aol.com wrote:
I was wondering if the K3 VFO tuning rates increase the faster the VFO knob
is spun? Is this a future firmware option if it doesn't?
I have an ICOM 756PROIII and its VFO tuning rate increases with the speed
of the knob, kinda nice!
I have a Sangean ATS 83 that does
This is referred to as ballistic tuning. We experimented with it but
rejected it when we did the K2 design. I haven't tried it on the K3
yet, but I've added it to my list.
73,
Wayne
N6KR
On May 26, 2009, at 2:28 PM, David Woolley (E.L) wrote:
ac...@aol.com wrote:
I was wondering if the
Frank MacDonell wrote:
I am using a center fed dipole in the attic for a K3. Does the antenna
generate any measurable amount of heat during TX? Thanks.
Yes. Subject to using suitable measuring instruments.
If the antenna is a reasonable length, a lot more heat will be generated
in the
Wayne .. It would help to know officially whether the Case Screws fit an
82-degree or 100-degree countersink hole. Both numbers have been indicated
on the Reflector.
73 -* Dave, W9ZRX
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82.
Wayne
N6KR
On May 26, 2009, at 2:50 PM, Dave Zeph wrote:
Wayne .. It would help to know officially whether the Case Screws
fit an
82-degree or 100-degree countersink hole. Both numbers have been
indicated
on the Reflector.
---
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Probably the same as as a 50 watt light bulb, but spread all over all the
material in the attic. One could not measure it with any ordinary heat
measuring devices. Quite a bit of the misdirected RF would be spread all
over places other than the attic by the house wiring.
73, Guy.
-
On Tue, 26 May 2009 18:06:03 -0400, Guy Olinger, K2AV wrote:
Probably the same as as a 50 watt light bulb,
This seems wildly pessimistic. I'd guess no more than a dB or so of
dissipation. A typical dipole near resonance looks like about 70
ohms, nearly all of which is a resistance that
The K144XV 2M Module for the K3 and the W2 HF and VHF/UHF Wattmeter are
now on the Elecraft Web order form. (The first order came in less than 5
minutes after we uploaded it. Guess they were watching!)
One note: For the K144XV, please be sure to check the box that tells us
if you have a K3/10
Also, please do not forget to select at least one directional coupler
for the W2, which is part of the base W2 price.
The W2 supports up to two directional couplers.
73, Eric
Eric Swartz - WA6HHQ, Elecraft wrote:
The K144XV 2M Module for the K3 and the W2 HF and VHF/UHF Wattmeter
are now
Assuming the heat question was from a safety standpoint, I'd be more
concerned with corona discharge than heat.
Many attic antennas have very limited attention paid to insulating the
high-impedance points, assuming the dry wood rafters are adequate. There are
been reports of fires caused by just
I just ordered the 2 meter option and the new wattmeter. On the VHF module,
will it be able to work on MARS/CAP frequencies and/or RX outside the ham band?
Just curious since the K3 is slowly replacing almost all the other radios in my
radio room as more features and options get added.
Th3 K3
Wayne,
I have that ballistic tuning on my Yaesu FT-847 and find it cumbersome
to use. It may be that I am just not used to it (I use my K2 and K3
more often, but for right now, operating with a ballistic tuning know is
*not* one of the skills I want to have to learn. I am quite happy with
A ballistic tuning rate on my K3 would be below the
bottom of my wish list. (:-))
It's faster to use the FREQ ENT method, if at all.
73! Ken Kopp - K0PP
elecraftcov...@rfwave.net
http://tinyurl.com/7lm3m5
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Not currently. It covers 144-148 MHz, all modes.
What frequencies ranges are needed for 2M MARS/CAP?
73, Eric WA6HHQ
J. Heide wrote:
I just ordered the 2 meter option and the new wattmeter. On the VHF module,
will it be able to work on MARS/CAP frequencies and/or RX outside the ham
Can the K144XV be installed sans sub rx? It kinda looks like it mounts
to the top of the sub rx. Deeply apologize if this has already been
answered and I've missed it.
On Tue, 2009-05-26 at 16:51 -0700, Eric Swartz - WA6HHQ, Elecraft wrote:
The K144XV 2M Module for the K3 and the W2 HF and
Can the K144XV be installed sans sub rx?
Yes. The sub Rx is not a requirement for the K144XV, but it will take
advantage of it if present.
73,
Lyle KK7P
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Yes - It has its own mounting bracket to the side of the K3 and can be
installed without or with the KRX3 sub rx. (You get a new K3 left side
panel with the new mounting holes.) It actually sits a little above the
sub RX and does not contact it.
The K144XV and KRX3 are totally independent
I read the eariler info on this ps. I'd like to look it up on the radio shack
website. What is the model #,etcthx and 73, Wade w7ute
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The loss will be from dielectric loss, especially with asphalt shingles
above. For RF loss purposes, not much difference between layered asphalt
shingles and an inch, half inch, of dirt. Plenty lossy. Lay a dipole on an
asphalt roof and explain the detuning and the widening of the SWR curve.
I just tried listening to a 6M FM net on my K3. I set SQ SUB to Sub Pot and
noticed that the squelch opens when the sub rf/sql is adjusted full
clockwise. Backing of slightly closes the squelch. Anyone else observe this.
Also, sometimes it goes to 29 and other times to 30 when fully advanced. My
Don,
I agree wholeheartedly! Ballastic tuning is painful and detracts from the
operating experience. Just one man's opinion.
73, Bob K3UL
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Help:
I responded privately to the OP earlier in the day with the following. Since
this thread has taken on new meaning. I'm posting it here:
Frank,
Maybe a little thought experiment would help.
Consider that a K3/100 (I assume that is your worry) puts out at best 100 W and
with most modes and
There is a 25 Amp Model: 22-510 / Catalog #: 22-510
Regards,
Dick - KA5KKT
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I'm considering ordering a K3 kit soon. I wonder how 'optional' these
items listed in the assembly manual really are:
Optional Equipment:
1. RF Power Meter with accurate readout from 1 mW to 5 watts, minimum.
2. Signal generator with calibrated 50 uV output at 20 or 40 meters.
I have a Bird
You don't need a wattmeter. If you have one, you can set the K3 so that its
internal watt meter matches yours (at 5 and/or 50 watts).
You don't need a 1 mw wattmeter.
You don't really need a signal generator.
Dick, K6KR
-Original Message-
From: elecraft-boun...@mailman.qth.net
One idea already on the list is to have the VFO A and/or VFO B knobs be
live after you tap FREQ ENT, so that instead of entering a numeric
frequency, you could select the frequency in 1 MHz (VFO A) or 100 kHz
(VFO B) steps. Tap FREQ ENT again to return to normal tuning.
Wayne
N6KR
On May 26,
Dave,
Those pieces of equipment are entirely optional. They are not
required at all. In fact the 1 mW level is only used if you include the
KXV3 option.
The Power Meter can be used to obtain more accurate power calibration
(but the K3 does a good job of it without that meter), and the
That would also drive me wild, but then I would not have to use it
unless I selected it explicitly, so it is quite palatable to me.
Remember the KISS principle - I object to my radio doing magic
things for me.
73,
Don W3FPR
wayne burdick wrote:
One idea already on the list is to have the
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