I would like to use the 2.1 kHz filter for SSB TX.
Elecraft any solution?
Jim SM2EKM
On 2010-01-24 19:38, Brian Machesney wrote:
Yes, I did search the archives to find out why you can transmit through
some filters and not through others before posting this question to the
Hi all!
Anyone using a W2IHY EQ Plus with the K3?
If so what are your experiences and what microphone are you using
73,
e72x - Gordan
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Help:
I've been running my CW only K2 using the hybrid power supply designed by
Fred (K3GQ) at Gamma Research. This tiny power supply packs a big punch
because it is loaded with about 5 farads of capacitance. The capacitors
provide the high current surges needed during the high-power portions of
What would be the problem you were solving?
On Mon, Jan 25, 2010 at 1:44 AM, Jan Erik Holm sm2...@telia.com wrote:
I would like to use the 2.1 kHz filter for SSB TX.
Elecraft any solution?
Jim SM2EKM
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Elecraft
Since you're using CW, I think the only possible ill effect of the voltage
variation could be a pulling of one of the VFOs causing a chirp on your
signal, if the K2 voltage regulation isn't good enough to take care of it
(which it probably is.) The best way to be sure is just to listen to your
The key problem is that when you want to use other than a 2.7 or 2.8 kHz
filter for receive, you must still tie up one of the remaining 4 filter
slots with either the 2.7 or 2.8 kHz filters in order to transmit. If there
were 7 or 8 filter slots in the radio, or one slot dedicated to transmit,
Key-down tuning for QRO is a no-no, as is RTTY. They spec the power
supply at 22 amps -- 25% duty cycle -- or 5 amps continuous. 12.5
volts times 5 amps is 62.5 watts. If one figures in the usual 50%
efficiency of transistor rigs, that's 31 watts brick on key, a figure
that will be need to set
I see where you are coming from, but with a 2.1 why bother with the
1000 roofing filter (that's a question, not a criticism), since for
casual operation the DSP should suffice. But since you DON'T have a
2.7/2.8 installed, how are you tricking the system? You telling it
that the 2.1 is a 2.7?
What I don't understand is why they didn't double up on the cap,
upsize a few things and get it to 22 amps 50% duty cycle...
It should be possible to parallel another 5 Farad of C by adding a DC
connector to the Gamma supply. For higher duty cycle operations, just plug
the added C into the
Hi Gordan,I don't see any need to use the EQ Plus with the K3 because this
radio has a very good 8 bands EQ to tailor your voice with any mic and also an
excellent noise gate and compressor,I think you should save the problem that
you might have having another outboard device picking up
Hello Goran,
I use the W2IHY Dual Band Noise Gate with my K3 and am very happy with it. If
you
only want to adjust the audio spectrum you can always use the built-in TX EQ in
the K3. However, I have never bothered to adjust the equalizer inside the K3.
My
primary goal was to eliminate the
Guy --
Key-down tuning for QRO is a no-no, as is RTTY. They spec the power
supply at 22 amps -- 25% duty cycle -- or 5 amps continuous. 12.5
volts times 5 amps is 62.5 watts. If one figures in the usual 50%
efficiency of transistor rigs, that's 31 watts brick on key, a figure
that will
Hi all! I'm a new happy K3 owner. I configured my K3 with my old Yaesu-7000
linear.
K3 with linear is OK on CW mode, but on SSB mode, the linear is shutting
down oftenly, with LED Protect blinking even with less power feeding.
Have EXT ALC ON.
Does anyone, who uses same linear, had same
I use a new computer with Windows 7 64 bit and the EZ control software is not
working for me. It reads the radio fine but loses all frequency memories on
the computer after logging off The frequencies all read but the modes
remain correct. Also, the EZ software freezes when trying to log
From: Oliver Johns ojo...@metacosmos.org
Date: 25 January 2010 09:12:00 PST
To: Brian Machesney nekvts...@gmail.com
Cc: Oliver Johns ojo...@metacosmos.org
Subject: Re: [Elecraft] K3: transmitted RF feedback with condenser mics?
Try putting a snap-on ferrite bead ON the actual boom of the
On Mon, 25 Jan 2010 15:40:17 +, Lance Collister wrote:
My primary goal was to eliminate the high level of background
noise from my VHF amplifiers when I operate SSB mode.
Have you tried turning down the mic gain and working it close?
Talking louder? Problems like this can be easily
My daughters (3yo and 7 yo) and I are continuing the K2 build.
Both daughters are now capable of holding the soldering iron and the
solder during soldering. They take turns now: one holding the solder and
the other holding the iron. Both are sitting on my lap when soldering is
done.
Needless
On Mon, 25 Jan 2010 09:14:21 -0800, Oliver Johns wrote:
Try putting a snap-on ferrite bead ON the actual boom of the
electret headset microphone. Put it right at the end, just before
the microphone bulb. Maybe the RF is getting into the electret or
its FET and is being rectified there.
Hello Lance. In addition to excellent built-in EQ, the K3 TX audio chain has a
built-in noise gate that I find to be excellent at reducing or eliminating
background noise on SSB. You might want to give it a go. '73 es gud dxing --
Don N4HH
SNIP
On Mon, 25 Jan 2010 15:40:17 +,
Lance
I have an old off brand linear power supply that is inop - it was a freebie.
I would like to re-build it with a modern circuit as it was regulated with a
zener and I would prefer an ic based regulator. The transformer is fine. I
would like to find a circuit board I can populate with - parts.
Hello Gordan,
I have the W2IHY connected to my K3 and it does a great job. It is not
necessary, however. I bought the IHY to use with my Orion II and a very
old dynamic microphone, a ElectroVoice EV664. The only reason I use the
IHY with the K3 is that I can just reach behind the IHY and move
Hi Gordan,
I originally used my K3 with a Heil Goldline and the W2IHY EQ box. I
received great reports. But I needed some space on the desktop, so I pulled
the W2IHY box, added the Heil PR781 mic and did virtually the same EQ tweak
within the K3' menu. Same results, great audio reports, less
Thanks for the suggestions about mic presence Jim. Yes, the mic on my headset
is
set so it is directly in front of my lips - as close as it can be without
touching. The problem I have here is that the amplifiers are directly behind
me,
so the mic is also aiming that direction when I am
Key-down tuning for QRO is a no-no, as is RTTY. They spec the power
supply at 22 amps -- 25% duty cycle -- or 5 amps continuous. 12.5
volts times 5 amps is 62.5 watts. If one figures in the usual 50%
efficiency of transistor rigs, that's 31 watts brick on key, a figure
that will be need to set
Hi Jim,
Well, the ferrite bead may not be self-resonant on 20 meters, but it still
provides SOME impedance to the common-mode current. I found experimentally
that it did help. And lots of people use these snap-on beads to good effect
even in situations where multiple turns (which of course
Brian,
I know a guy in Sonoma, CA, whose porch lights come on (dimly) when he
transmits on 160!! Fortunately, my main problem (on 20 meters) seems not to
touch the DSL, WiFi, etc. system. Fingers crossed. I think one of the hidden
problems we all have is resonance with phone lines,
Hi,
The Gamma is my primary PS on my K3 (don't own a K2). Never had a problem
with it since I've been using it almost a year now. That being said, you
have to understand its limitations: SSB, it's great and gets out 100w; AM,
reduce power down to 70w-80w; Digital modes some high speed CW can
I'm about to install Win 7 64 bit in a VM, so I can play a bit without
hosing my XP setup. I had a friend test a bit of my software on his 64
bit box, and had the same freeze/logout problem. If an answer is found,
please share it with me also.
73, Mike NF4L
KM4VX wrote:
I use a new computer
Afternoon all:
K2 #6272 is alive and well once again.
Had a heck of a time getting the Q7 Q8 installed. Kept seeing a short to
the heat sink. Turned out the corner of the tab on Q7 had a raised area and
a slight sharp spot that was cutting through the thermal pad and shorting to
the heat
Using my K3 with a computer and outboard sound as well sound based programs,
both a Fixed-Level and Variable-Level (AF Gain Knob) Line Output
simultaneiously could be useful to me.
Has a mod been developed that provides both?
73,
Dick - KA5KKT
K3 beta-test firmware revision 3.76 (with DSP rev. 2.52) is now
available.
This revision has something for just about everyone, but especially
those who use NR (noise reduction), and those who have (or will soon
have) a K144XV 2-meter module. See release notes below.
Please send any
Dick,
The line out level is fixed by the menu (CONFIG: LIN OUT), and the SPKRS
or PHONES output is variable - controlled by the AF gain. They can be
used simultaneously. Both/either will work into a high impedance load.
I have been using the SPKRS output to drive a soundcard, a mixer or a
Can Ant-2 with internal ATU - KAT3 antenna input module be used as a
receiving antenna (e.g. Beverage) for Main RX (No KRX3 installed) while
Ant-1 being used for TX ?
TU
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If this is a K3 then the ATU shouldn't update until you TX so thats not
it.
~Brett (KC7OTG)
On Sun, 2010-01-17 at 12:24 -0800, Sverre Holm (LA3ZA) wrote:
Perhaps your ATU which changes state?
Richard Thorpe wrote:
I hear a relay click when I tune across 14.200 down it clicks at
Cool,!! downloaded and working already in my K3,was waiting for that separated
NR settings per mode,now we are in business,thanks Elecraft team.
AD4C
For a refined ham it is compulsory to own a k3
--- On Tue, 1/26/10, Wayne Burdick n...@elecraft.com wrote:
From: Wayne Burdick
For a refined ham it is compulsory to own a k3
We can add: Elecraft...By Ham's, for Ham's...What else !
Thanks for the release, already downloaded, great !
73's
Philippe
A65BI
K3#3616
Hector Padron ad4c2...@yahoo.com 26-01-2010 6:08
Cool,!! downloaded and working already in my K3,was
I'm also running Win7 32 bit version and while I don't have any problem
running the Elecraft K3 Utility, I do have a problem with the K3_EZ program
working correctly. I tried running it as Administrator and in all the
various compatibility modes but it still will not load and display the
I've activated Bset but when I hold the NR button I don't get a Fx-x
indication for setting the Sub NR.
Didn't see anything in the manual or scanning throught the Config settings.
How is this done?
tnx
jim ab3cv (sub newbie)
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Your are right Phil,what else,nothing,they are the best !!!
AD4C
For a refined ham it is compulsory to own a k3
--- On Tue, 1/26/10, Philippe Trottet trot...@unhcr.org wrote:
From: Philippe Trottet trot...@unhcr.org
Subject: Re: [Elecraft] K3 Beta Rev. 3.76: Per-band/per-mode
I received the same reports as Lance (distorted or gravelly transmit
audio) from local hams listening to my SSB signal when using the K3 noise
gate feature, as compared with having it turned off. I simply opted not to
use it any more, since I wasn't getting complaints about too much background
After loading v 3.76 the noise reduction setting reverted to F1-1, and this
setting sounded good in the SSB mode. The only NR change stated in the firmware
release notes was NR (Noise Reduction) ON/OFF. This refers to turning the NR
on and off by band and mode. Nothing is said about any other
I really like the way that the K3 ATU works. It has that nice push my button
and I will tune for you feel to it.
But, it is so small. OK, kind of kidding here but it would be nice to have a
big legal limit version of this tuner. Sure, a separate bigger box
container. I don't really like
Were there other tweeks to NR? Thanks. Roy Morris W4WFB
You can set it differently for SSB, AM and CW.
73,
Lyle KK7P
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Help:
Jim,
Contrary to what the manual says, the state of NR is the same for both
the Main RX and the SUB.
Wayne has indicated that the manual is not correct in this particular
aspect and will be corrected in the next manual revision.
73,
Don W3FPR.
Jim Miller wrote:
I've activated Bset but when I
Hello Phil,
I think this kind of ATU should have already been there. Before K3 came out,
Elecraft showed a proto type of KPA800 or KPA 1500. This kind of ATU should
form part of these linears.
73
Johnny Siu VR2XMC
- 郵件原件
寄件人﹕ Phil Hystad k7...@comcast.net
收件人﹕ Elecraft
Don,
From the new firmware release notes:
Other new features and improvements:
* NR (NOISE REDUCTION) ON/OFF: This is now saved
on a per-band/per-receiver basis (same as NB). NR ADJ
(noise reduction setting) is stored independently for
each mode.
I haven't loaded the beta firmware
Nabble users may have missed the announcement of K3 V3.76 Beta firmware
because it appeared in the middle of an old thread about 3.57.
http://n2.nabble.com/K3-Beta-Firmware-Rev-3-57-Synchronous-AM-Detection-AM-S-misc-improvements-tp3983997p4457885.html
Leigh/WA5ZNU
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