I had some enquiries about the macros I am using to switch between packet and
SSB mode, so I did a brief writeup on my webpage:
http://www.vk2rq.ampr.org/macros.html
73, Matt VK2RQ
On 11 May 2014, at 9:39 am, Matt VK2RQ matt.vk...@gmail.com wrote:
For this reason, I set up one of the PFn
I blew it, and in a quick transaction sold one of my K2's forgetting
that It had the DSP. Does anyone have one that they don't need that they
are willing to part with?
cheers, Paul - VA7NT
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Matt,
Thanks for sharing that, I found a few interesting things to add to mine
as a result.
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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:
Matt,
Many thanks! You have provided a great reason (and a rosetta stone)
for me to start exploring the command structure. Looks like fun.
Jack - KD4IZ
On 5/11/2014 02:39, Matt VK2RQ wrote:
I had some enquiries about the macros I am using to switch between packet and
SSB mode, so I did a
I read through the two macros on the page.
In the PKT macro, you turn off the speech processor, audio effects, and
turn *on* DATA A. Wouldn't turning DATA A *on* negate the need to turn
of the speech processor and audio effects? There may be other settings
that are turned off by going into
Ed,
Were those good quality, name brand batteries? I have heard similar
popping noises from audio amplifiers caused by batteries with high
series resistance. I have not observed that problem with the KX3, so I
am just suggesting that the problem may have been the batteries.
73,
Don W3FPR
Supposedly the DATA-A mode should automatically disable some of those settings,
but in early versions of the firmware, this didn't seem to work properly. I
haven't revisited this behaviour with the more recent firmware, so it may well
be that those settings are now being properly disabled in
I have noticed significant low end roll off in the Data mode below .5 kHz.
(Both transmit and receive). This is not present in the SSB mode. It is not
related to the settings on my roofing filters because it is there with both
the 6 kHz filter and the 2.7 kHz filter, and even with shift and width
Thanks for writing, Lyle.
I am curious, then, why the (K3) SSB signal is routed through a crystal
filter. Is it purely a belt and suspenders approach to enforcing a limit
on the bandwidth of the transmitted signal?
Brian K1LI
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I tried to get the KX3 to work with the latest rev level of N1MM and configured
it
per the instructions for one cable connection using just the USB to serial cable
supplied to go between the radio and PC win7. The configuration talks ok at
38400bps
with commands for changing bands, vfo
The 15 K Hz signal from the DSP is a SSB signal.
This is the second IF frequency (from the antenna side).
When this is mixed with the 8.230 Mhz in you
end up with the sum and difference with the 15KHz:
Namely 8.215 and 8.245 MHz.
The 8.215 MHz filter is used to remove the
unwanted 8.245 MHz
Please forgive the bandwidth used.
My son-in-law’s cousin Eirik LA9OFA in Norway above the Arctic Circle is trying
to find a transceiver like the first rig he had. He asked me to see if I could
find anyone who had a working Yaesu FT-7B they would be willing to sell.
Why here? I am trying
The schematics show two internal crystal filters:
one on the receive path (2 poles) K3 RF Board
It's marked BW 14 kHz. 8215.0 KHz.
This has no relay to bypass it.
one on the transmit path (4 poles) KREF3 REF/2ND TX IF
It's marked 8215.0 kHz, BW=4 kHz
This has a relay to move to bypass it.
TEST to see if I'm back on list.
73, Joe W2KJ
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John,
This may not be exactly the same, but here is how I have my K3 set up in
N1MMit should get you in the right ball park.
In N1MM Config, select Hardware.
For Com 1, for rig, select 'None' and put check marks for Digital and for
CW/Other. In Set, set DTR = CW and RTS = Always Off.
For
Here is the SSB net report for May 4, 2014. We had 25 participants over 26
minutes.
Station NameQTH Rig S/N
N6JWJohnCA K3 936
W8OVDaveTX K3
You might try LP Bridge. The program allows splitting a single PC
port to multiple external com ports.
I use LP Bridge with RMS Express. RMS requires a separate keying port
-and- and control port. Sounds like the same type of problem you
have.
73,
matt W6NIA
On Sun, 11 May 2014 09:54:23
The KUSB cable used with the K3, as well as several other USB-to-Serial
cables that provide a DE-9 connector, include modem control signals (RTS
and DTR, etc) as well as TxD and RxD. N1MM uses these lines, in addition
to the K3's PTT KEY menu, to use one serial port (with USB) to assert PTT
and
A little more digging with my favorite search engine led me to this
article.
http://k4mtx.wordpress.com/2013/06/02/kx3-how-to-configure-n1mm-to-use-funct
ion-keys-to-send-cw-without-additional-cables-or-hardware-like-winkeyer/
73 de Dick, K6KR
-Original Message-
From: Elecraft
Hi Larry,
The schematics show two internal crystal filters:
one on the receive path (2 poles) K3 RF Board
It's marked BW 14 kHz. 8215.0 KHz.
This has no relay to bypass it.
This is used to further suppress the 2nd-IF image response at 8245 kHz. It has
essentially no ripple and thus no
The band was pretty grim this morning, here at
least. How many check-ins today, Phil?
Phil w7ox
On 5/11/14, 8:22 AM, Phil Shepard wrote:
Here is the SSB net report for May 4, 2014. We had 25 participants over 26
minutes.
Station NameQTH Rig S/N
Subject: Re: [Elecraft] KX3: popping noise in radio speaker
Message-ID: 536f6e90.5000...@embarqmail.com
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Ed,
Were those good quality, name brand batteries? I have heard similar
popping noises from audio amplifiers caused by batteries
What determines the bandwidth you hear at the loudspeaker? It's not your
roofing filter, despite a continuing notion that it is.
Dave Hachadorian's point in a post a few weeks ago was that you don't need a
1.8 kHz filter to get a 1.8 kHz bandwidth. You're free to set whatever
bandwidth you
This is actually covered already but I need to mention it.
When the WSJTX waterfall started losing signals into the noise
I noticed that there was a neat periodic set of signals that
lined up with the frequency ticks. Eventually it dawned on me
that they were 120 Hz apart and eventually I found
I've had my KX3 for a while now and I noticed the other day that where
the bottom of the two halve meet up, there appears to be... Well, I'm
not sure how to describe it.
Near the speaker, it appears the two halves don't meet up as well as at
the ends. If you look at the top half of the
I choose the easiest way for me and bought an interface named SUCCI-R
which you can buy via ebay.com
Information: http://www.kotarov.com/projects/succi
It uses only one USB-Port and you have CW-keying, PTT and more
(opto-isolated). Now I can work with my KX3
with the same software (Win-Test,
KX3 Serial# 4981 - Purchased August 2013 (less than a year old). No scratches
or dents. No functional issues.
Includes -
KXAT3 - Internal antenna tuner
KXBC3 - Internal NiMH Charger with Real-time clock for KX3
KXFL3 - Dual-passband roofing filter
KXSER-a - RS-232 Cable
MH3 - Microphone
I was wildly optimistic in this.
A second source of hum is the switching supply
of the laptop.
It's similar to the power supply hum.
Even though it's clearly a switching supply.
Curiosly the laptop need 12 volts.
So perhaps I can pick that off of the linear
power supply.
Or maybe run everything
I completely agree with all of that except for the very last sentence.
Clearly you've never used a 756Pro (first version) in a major CW
contest. I can remember very loud stations 10 or 15 KHz away completely
desensing my receiver to the point that the station I was trying to copy
simply
I too think roofing filters are really not well understood. For the
record, I have the stock SSB [2.7 KHz? I don't actually know] and the
500 Hz CW. In 99% of my operating situations, it doesn't matter which
one I use, I set the received BW with the DSP, and I'm a very happy ham.
I do have
I can remember very loud stations 10 or 15 KHz away completely
desensing my receiver to the point that the station I was trying to
copy simply disappeared. When I switched to the K3 the difference
was astounding.
That is because the 756Pro is a completely brain dead design ... there
is only a
It was a pretty hard net this morning with terrible propagation. Signals were
way down. Few could hear me well. We struggled through with 12 participants
in 9 minutes. Hopefully, conditions will improve soon.
Station NameQTH Rig S/N
WV5I
For the entire Cooler KX story go to www.ve7fmn.ca
http://elecraft.365791.n2.nabble.com/file/n7588946/KX3-1.jpg
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Sent from the Elecraft mailing list archive at
I would take issue with your answer to #1. It really depends on your situation.
For most of the folks on this list your answer very well may be correct. In
areas where there is very high station density, it probably is not. Here in
Silicon Valley there are a LOT of very strong near-by signals.
Hey,
I wanted to let you guys know that the root cause has been found. I asked
Don to look at the radio and the root cause was that I had misplaced a 1pF
cap at C68 which was labeled 1D. C68 was supposed to be 10pF. It was a
stupid construction mistake after all. Perhaps this can serve as a
I switched to a Creative Sound Blaster X-Fi Go!
USB dongle and that got rid of the hum from
the laptop charger.
I got this originally because the desktop
I use has no sound support at all.
It was an extremely cheap server box
that runs Linux.
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We did make similar mistakes throught out our hobby. Wrong parts, wrong
components at wrong places are always the problems.
Even I built the 10th K2, I still made mistakes.
73
Johnny VR2XMC
寄件人︰ Joseph Baxley via Elecraft elecraft@mailman.qth.net
收件人︰
ORIGINAL MESSAGE: (may be snipped)
On 5/11/2014 7:25 PM, Fred Jensen wrote:
I too think roofing filters are really not well understood.
REPLY:
A large part of the misunderstanding is due to the name. Whoever chose
the name roofing did a great disservice. A better name would simply
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