[Elecraft] (no subject)

[Edward R Cole]

If I might inject a suggestion/observation:

If you are looking for 0 to 100km 100% reliable propagation it is to 
be found on 600 meters!
I ran tests all summer long in 2012 on 495-KHz CW running 100w into 
an inverted-L and was copied at 30-35 dB SNR any time we tried over a 
70mi path.  That is 6 s-units over noise!  Ran weekly sked at local 
noon all summer long (when we have 19-hours daylight).


BTW my ERP < 1w due to inefficiency of the small antenna at that 
frequency (less than 1/10 wavelength vertical).  I am using a 
modified NDB 100w transmitter which drives with 0.1mw in place of the xtal LO.


But do not expect that SSB or wide-band digital modes will be 
permitted once a ham band is established at 472-479 KHz (630m 
band).  Only narrow band modes like CW will be permitted in such a 
narrow band (7-KHz wide).  1-Hz frequency accuracy/stability will 
also be required (easily done with the K3EXREF).


My antenna is a 43-foot high by 122-foot long inverted-L with HB 
loading coil at ground end.  Receiving station had KAY loop 
antennas.  My noise floor is S3 to S5 at 600m using the Invert-L.


Now the pertinence to Elecraft:  The K3s and K3 with new synth board 
can operate at these frequencies (also requires the new general 
coverage filter).  Output is 1mw but this is quite capable for 
driving amps with addition of a couple buffer stages.  In general 
100w => ERP 5w and 20w => ERP 1w with short verticals.


During the winter longer paths have worked (K6 to VK).  Summer 
conditions at temperate latitudes are subject to a lot of lightning 
noise.  Similar to 160m except more reliable for short range.


73, Ed - KL7UW, WD2XSH/45

Subject: Re: [Elecraft] OT: 60m band - usual communication range
Message-ID: <56d7c766.5080...@gmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed

I use 60m occasionally and I don't think it is "reliable" 24/7.
especially for only a 100km radius.   60 tends to go long in the
evenings.  It works well as one tool in a toolbox with several tools.
But I think it shines for longer distances than 100km.   As others have
said, it's better than 80 during the daytime and better than 40 in the
evenings for short distance.  But don't be surprised if 400 miles (600
km) is the closest you can work some evenings.

I would also suggest higher power to help with poor propagation and/or
summer QRN.

Ken WA8JXM



73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
dubus...@gmail.com

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[Elecraft] [KX3] How to use manual notch in SSB mode

[WD4SDC]

Greetings.

You *can* use manual notch on SSB on the KX3.

Turns out that if you turn on the manual notch while in CW mode that it will
stay on if you switch to SSB without cycling thru a mode that cancels it -
such as FM or data modes.  

Here's an example of how I did it.
Starting with LSB mode:

A->B 
MODE -> CW
FC -> +0.92
BW=2.8KHz
RIT=-700Hz  This removes (my) pitch offset and opens the bandwidth to 
receive
LSB voice.

Now you can turn on the notch filter and adjust to remove CW RFI.
Press A/B and turn off RIT to have SSB with manual notch enabled - and CW
removed!  A/B allows me to go from CW to SSB w/o cycling thru FM, although I
could also disable FM mode.

For USB, you would need to use CWR and RIT=+700Hz.

Why this is desirable:
The auto-notch feature is great for intermittent tuneups or other (multiple)
CW signals in the SSB passband, but it is applied after the AGC, so if the
CW signal is much stronger than the voice signal, the voice signal is
suppressed even though the tone is removed - like when trying to copy an S3
voice with a S9+20 CW sitting on it.

For strong "persistent" CW QRM, using the manual notch removes the CW signal
*before* the AGC, allowing AGC to operate on the desired signal.  This notch
is at least 80dB!  The S9+20dB CW goes away, and S3 is perfectly readable!
Very cool! Especially useful if the CW signal is in the 500-1500Hz range -
making it difficult to remove with low or high pass BW adjustment and still
copy voice - you can, but it takes effort.

I tried creating a macro for this - it kinda works.

MD3;SWH20;MD1;

Works, but the macro name covers up the notch frequency display in the VFOB
area.  You *can* adjust the notch frequency even though you already in SSB
mode (if you turn the knob within the 2 sec window), but it's a blind
adjustment.  And then the macro name sticks until you do something to update
the VFOB display (like adjust BW). If you just send the commands using the
KX3 utility program, it works great, but you need a pc :\.  Perhaps there is
a macro work-around?

73
Steve
WD4SDC



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[Elecraft] (Elecraft) Logging Programs

[Richard Schmiedt]

I've had really good experiences with the N3FJP programs, both for contests and 
general logging (ACLog). They are not free--$15 for general logging, $60 for 
all contests and future programs), but the developer is an active ham who will 
answer your emails and has an active Yahoo group.  I find them much more 
intuitive and straightforward  than the DXLab suite. 

I would also suggest perusing the Ham Software reviews on eHam.net to get an 
idea of how people like the various programs out there. 

For sophisticated contest work, N1MM+ is king, but the N3FJP programs do 90% of 
what MM does with a much easier interface. 
Rick
W4GE
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Re: [Elecraft] OT: 20m moving QRM.

[Eric Swartz - WA6HHQ, Elecraft]

Time to close this thread in the interest of relieving email overload for 
others. Looks like the O.P. has a good path to take to remedy his problem.


73

Eric
Lost moderator
/elecraft.com/
===

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Re: [Elecraft] OT: 20m moving QRM.

[Walter Underwood]

When QRM and QRN were codified, there was little or no RFI. I try to use “RFI” 
instead of “QRM” or “QRN”. Everyone understands that. 

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Mar 3, 2016, at 4:12 PM, Mike  wrote:
> 
> I have no way of verifying this, and I only date back to the 1950s as both 
> ham and commercial operator. But always understood that the N (as in QRN) 
> meant the interference was from 'Natural' sources and the M (as in QRM) meant 
> that the interference was from 'Man-made' sources.
> Guess only those who formulated the original Q-codes could tell us.and 
> they will all be SK by now!
> 73 de Mike, zl1mh.
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Re: [Elecraft] OT 20M Moving QRM (Video)

[Fred Jensen]

Weigh it.  Most small wall warts are also very light.  I've got a couple 
of heavy larger ones in the junk box and the difference is hard to miss. 
 The cable from it is the radiator of course, a BC band radio tuned to 
a clear spot [preferably at the high end] will usually show a distinct 
increase in noise as you move it up the cable.


I was choking a 4 A feed to the wireless equipment and used a couple of 
3 1/2" OD [or so] toroids that N6XI gave me.  Consulting the K9YC 
recipe, I wound 12 turns of Radio Shack red-black pair on one, and as 
many turns as I could get in one layer on the other, wired them in 
series and then stacked them using zip ties.  My theory was that the one 
with lots of turns would get the 160-80 m stuff and the 12 turns would 
get 40-30-20.  They went right at the Chinese RPOJ power supply in the 
24 VDC cable.  I don't know the mix but I think probably 34 or 43, I 
think they were part of a group buy by the contest club.


My experience with the small clamp-ons has been poor, unless you get 
several turns of the cable through it, and even then I don't think 
there's enough permeability in the magnetic circuit to do much.  It's 
pretty hard to find linear wall warts these days.


73,

Fred K6DGW
- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org


On 3/3/2016 2:53 PM, David Christ wrote:

Is there any way to easily determine if a wall wart is a SMPS?  Most
probably are but are there any that are not?

David K0LUM

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[Elecraft] OT: 20m moving QRM.

[Mike]

I have no way of verifying this, and I only date back to the 1950s as 
both ham and commercial operator. But always understood that the N (as 
in QRN) meant the interference was from 'Natural' sources and the M (as 
in QRM) meant that the interference was from 'Man-made' sources.
Guess only those who formulated the original Q-codes could tell 
us.and they will all be SK by now!

73 de Mike, zl1mh.
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Re: [Elecraft] OT 20M Moving QRM (Video)

[Jim Brown]

On Thu,3/3/2016 2:57 PM, W2RU - Bud Hippisley wrote:

Is there any way to easily determine if a wall wart is a SMPS?

Weigh it.


Yes -- switch-mode supplies are a lot lighter for the same power rating. 
Another way -- tune a portable AM radio to the high end of the AM band 
and listen for noise as you hold the ferrite loopstick antenna next to 
the unit. Linear supplies will be dead quiet, SMPS units will be noisy. 
I use a Kenwood TH-F6A, which uses a ferrite loopstick in the base below 
10 MHz, and I tune it to about 2 MHz.


73, Jim K9YC
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Re: [Elecraft] OT 20M Moving QRM (Video)

[David Ahrendts]

Thanks, everyone, for weighing in. I’m armed with $95 of ferrite snap ons and 
chokes and two MFJ heavy duty AC filters! Saturday I plan to carefully 
re-design all of the AC wiring in my office/shack which is, admittedly, a 
hodgepodge of extension cords and power strips with at least 5 wall warts. I 
suspect the offending switching PS runs the brand new LG display used with the 
K3S SVGA. It’s a small, light little thing. Runs very hot. Most likely will be 
replacing it with a linear wall wart or something cleaner.
 
I found this article that explains the differences between linear and switching 
power supplies:  
http://www.clever4hire.com/special-articles/home/ac-dc-power-supplies---using-wall-warts

Will report back.

David A., KK6DA 


> On Mar 3, 2016, at 10:05 AM, David Ahrendts  wrote:
> 
> Does anyone recognize this moving QRM? Last evening 6:30pm. Band is dead. 
> Ambient noise pretty calm. But notice the slowly moving noise bumps on the 
> K3S SVGA display. Might this be weather radar?   https://vimeo.com/157616344 
> 
> David A., KK6DA, LA
> 
> 
> 
> David Ahrendts   davidahren...@me.com   
> 
> 
> 
> 
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David Ahrendts   davidahren...@me.com   




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Re: [Elecraft] K3s using RS232 v USB?

[Rick WA6NHC]

I've had far fewer issues with rig control via serial than via USB. If 
there is stray RF in the shack (easy at QRO), the USB devices can 'go 
wonky' (more than a driver issue, requiring a complete shut down to 
power off, then rebooting to clear the actual USB hardware on the mobo) 
but serial chugs along.


Rick nhc

On 3/3/2016 1:14 PM, Don Wilhelm wrote:

Tom,

The only 'cons' that I can think of is the computer OS support for the 
device in the K3S (which really is an internal USB to RS-232 adapter).
It will work just as well and likely better than an external USB to 
serial adapter.
Support for USB to serial adapters was a bit 'flaky' back in 2008 when 
the K3 was announced, but as time has gone by, I have found USB 
devices are fully supported by most computers.


Of course, if the computer has real RS-232 ports, those are usually 
independent of OS support issues - all OS variations I know about 
support the RS-232 port directly - even if the computer does not have 
an RS-232 port connection.


73,
Don W3FPR

On 3/3/2016 2:13 PM, cx...@4email.net wrote:


I would like to know exactly what would be sacrificed by the convenience
of using the USB to computer vs an external interface. So what are the
con(s)?




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[Elecraft] OT: FS SignaLink USB with K3 & KX3 cables SPF

[Jim Sheldon]

The SL USB has been spoken for, pending funds
W0EB

Sent from my iPad
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Re: [Elecraft] OT 20M Moving QRM (Video)

[W2RU - Bud Hippisley]

> On Mar 3, 2016, at 5:53 42PM, David Christ  wrote:
> 
> Is there any way to easily determine if a wall wart is a SMPS?  

Weigh it.

Bud, W2RU
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Re: [Elecraft] OT 20M Moving QRM (Video)

[David Christ]

Is there any way to easily determine if a wall wart is a SMPS?  Most probably 
are but are there any that are not?

David K0LUM


> On Mar 3, 2016, at 4:39 PM, Jim Brown  wrote:
> 
> I'd guess that the average home has at least a couple of dozen switch-mode 
> power supplies.
> 
> 73, Jim K9YC
> 
> On Thu,3/3/2016 12:18 PM, Dave Cole wrote:
>> Thank you Jim, I have always thought it might be, but I have never been
>> able to actually unplug one, and have it go away...  There is one in
>> the area, that covers several blocks my self and another ham have been
>> looking for for a few years now...
>> -- 
> 
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Re: [Elecraft] OT 20M Moving QRM (Video)

[Jim Brown]

I'd guess that the average home has at least a couple of dozen 
switch-mode power supplies.


73, Jim K9YC

On Thu,3/3/2016 12:18 PM, Dave Cole wrote:

Thank you Jim, I have always thought it might be, but I have never been
able to actually unplug one, and have it go away...  There is one in
the area, that covers several blocks my self and another ham have been
looking for for a few years now...
--


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[Elecraft] OT: FS SingaLink USB with K3 & KX3 cables

[Jim Sheldon]

I have for sale a Tigertronics SignaLink USB that's about a year and a 
half old.  It comes with the "Plug-N-Play" pre-wired jumper headers for 
both the Elecraft K3 and KX3 radios and also the proper interconnect 
cables for both radios.  The manual can be downloaded from the 
Tigertronics website and the drivers also if necessary.  (The Linux 
version of FLDIGI recognizes it without any hassles).  Cables for other 
radios (would require either purchase of the proper header or wiring one 
yourself to match the radio - see Tigertronics' website for further 
info.


This is a USB external sound card designed to run most if not all of the 
current digital modes almost seamlessly - provides TX/RX audio AND PTT.  
Powered through the USB cable so no external power supply is needed.  
TX/RX audio levels and PTT delay are adjustable via controls on the 
front of the unit.


I'm asking $95 shipped anywhere in the U.S. via priority mail.

Pictures available via email on request.  It's in excellent condition 
and I made a couple PSK-31 contacts with it yesterday hooked to my K3S 
to check it out.


Please contact me off list if interested and the first "I'll take it" 
gets right of first refusal - first in will be determined by date/time 
on the email.


Jim Sheldon - W0EB
Park City, KS

email w...@cox.net



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Re: [Elecraft] OT: 20M moving QRM

[Fred Jensen]

Well, consulting the source [ACP131]:

QRN? "Are you troubled by static?"
QRN "I am troubled by static"

QRM? "Are you being interfered with?"
QRM "I am being interfered with"

I suppose "static" could be "interfering with you" as well as another 
station, and much of 75 m in the evening probably classes as "static" 
regardless of its source. :-)  It's seemed to me that the Q-signals 
class QRM as caused by another station and interference from everything 
else as QRN, but I'm a retired engineer not a lawyer.  Additions to the 
ICAO/ITU standards can be found at www.zerobeat.net/drakelist/missingq.html


73,

Fred K6DGW
- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org

On 3/3/2016 1:11 PM, Scott Ellington wrote:

On 3/3/2016 14:47, Fred Jensen wrote:

QRN, not QRM

I thought QRN was exclusively atmospheric noise.  Perhaps we need a new
Q code for man-made garbage.

73,

Scott  K9MA



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Re: [Elecraft] OT 20M Moving QRM

[Ken G Kopp]

On Mar 3, 2016 2:41 PM, "Ken G Kopp"  wrote:

> Dave,
>
> You shouldn't make finite statements like this.  There are some of us who
> sometimes know better.
>
> Sounders -do- come in a -wide- variety of formats ... many are
> purposefully wide and use variable sweep rates so as not to be so
> "visible".  Some move very slowly.  It all depends on the kind of
> information being sought.
>
> In a past life I lived / worked in the shadow of the NBS Labs in Boulder,
> who operates one within the City of Boulder.  There was another a mile away
> from our house in Longmont.  That one took about a minute to travel across
> 160M.  There is one at Weber State in northern Utah.  There are hundreds
> ... maybe thousands ... in operation all over the world.
>
> I also worked at CU's radio astronomy Lab and used a receiver that swept
> 300 kHz to 300 MHz once every second 24/7, so we were all very familiar
> with the many, many ionosondes.  They make interesting ... and varied ...
> traces on the chart recorder.
>
> BTW, if you know what to look for you can often see Jupiter's noise on
> your P3.
>
> Then, there are the many wave radars, with several located in the
> restrooms of Oregon's State Parks along the coast.  ( We were hosts with
> our RV parked about 100' from one.)  They're about 50 kHz wide. Google
> "Seasonde" for more info on these.
>
> 73
>
> K0PP
> On Mar 3, 2016 1:19 PM, "Dave Cole"  wrote:
>
>> That is not an ionosonde...  They are a pure carrier moving at a steady
>> speed, and they sweep MUCH faster than that.
>> --
>> 73's, and thanks,
>> Dave (NK7Z)
>>
>> For software/hardware reviews see:
>> http://www.nk7z.net
>>
>> For MixW support see:
>> https://groups.yahoo.com/neo/groups/mixw/info
>>
>> For SSTV help see:
>> http://groups.yahoo.com/neo/groups/MM-SSTV/info
>>
>>
>> On Thu, 2016-03-03 at 11:16 -0700, Ken G Kopp wrote:
>> > Google "Ionospheric sounder".  There are lots of them around the
>> > world that
>> > operate 24/7 and this may be one of them.
>> >
>> > 73
>> >
>> > Ken Kopp - K0PP
>> > On Mar 3, 2016 11:06 AM, "David Ahrendts" 
>> > wrote:
>> >
>> > > Does anyone recognize this moving QRM? Last evening 6:30pm. Band is
>> > > dead.
>> > > Ambient noise pretty calm. But notice the slowly moving noise bumps
>> > > on the
>> > > K3S SVGA display. Might this be weather radar?
>> > > https://vimeo.com/157616344
>> > >
>> > > David A., KK6DA, LA
>> > >
>> > >
>> > >
>> > > David Ahrendts   davidahren...@me.com
>> > >
>> > >
>> > >
>> > >
>> > > __
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Re: [Elecraft] K3S USB port

[Jim Sheldon]

Hi Fred,
Not the K3 utility, but I did have the P3 utility running simultaneously 
for a time and it seemed to work just fine.  It connected and pulled in 
the FW versions I was looking for.


I did find what was giving the P3 it's information and the reason it had 
a slight update delay.  Turns out that FLDIGI on the Raspberry Pi 2 was 
echoing the serial information via /devttyUSB0 from the Pi and that was 
getting sent back to the P3 over the K3S's RS-232 on the RJ-45 
connection.  After I shut down FLDIGI on the Pi, the updates stopped and 
the P3 no longer changed the displayed frequency as the K3S was tuned.  
As soon as I restarted FLDIGI on the Pi 2, it went back to updating as 
the K3S changed frequency (with a slight delay) and almost instantly if 
the point and click controls in FLDIGI were used to change frequency.


I understand what's happening now and it seems to be only with the Pi 2 
and FLDIGI that it works this way.  Could prove to be useful, but I 
don't plan to rely on it - LOL.


Jim

-- Original Message --
From: "Cady, Fred" 
To: "Elecraft Mailing List" ; "Jim Sheldon" 


Sent: 3/3/2016 1:56:03 PM
Subject: Re: [Elecraft] K3S USB port


Hi Jim,
It's my understanding that the RS232 port is live for serial data out 
from the K3 (RXD) but not for serial data in (TXD).
Have you tried to use the K3 Utility with your set up? That would 
require bidirectional serial data and in theory shouldn't work.

Cheers,
Fred KE7X



From: Elecraft  on behalf of Jim 
Sheldon 

Sent: Thursday, March 3, 2016 10:48 AM
To: Elecraft Mailing List
Subject: [Elecraft] K3S USB port

First off, this is NOT a complaint, merely an observation. and in my
opinion, worthy of note for the programmers to check out.  I didn't
think this was supposed to work but it seems to work quite well, at
least in my case.

I am using serial RS-232 with the following cabling - Desktop COM-1 to
P3, P3 to K3S using the DE-9 to RJ-45 adapter (not the two headed cable
between the P3 and K3S) from my desktop computer.  I am also running 
the

USB port cable to a Raspberry Pi model 2, single board Linux computer
with the K3S configured as the USB Audio Codecs AND serial comms using
/devttyUSB0 for rig control with VOX for PTT, in FLDIGI on the 
Raspberry

Pi.  All serial speeds are set to 38.4K baud.

The P3 still indicates the K3S frequency as I tune (slight delay),
FLDIGI on the Pi 2 indicates the K3S frequency as I tune.  TX/RX audio
from and to FLDIGI on the Pi 2 work properly, and I am able to make
contacts with no problem as well.  I can also tune the K3S using
FLDIGI's frequency control.  I am using N3FJP's AC Log program on the
big desktop computer for logging and it also displays the proper
band/mode from the K3S.  It also follows frequency changes made by the
FLDIGI program on the Pi 2.  I did not attempt to configure DTR or RTS
for push to talk as VOX works so well.

It was my original understanding that you couldn't do this (RS-232 
using

the RJ-45 jack AND the USB port simultaneously).  I DO have the K3S
RS-232 configured to USB in the menu.  The difference may be due to the
fact that I'm using two separate computers here with both
talking/listening to the K3S.

I'm running FW version UC 5.46, DSP 1 and 2  version 2.86, FL version
1.25 on the K3S and MCU 1.57, SVGA 1.31 and the FPGA's 1.04 in the P3.

DISCLAIMER: If anyone else tries this, make sure to SAVE YOUR
CONFIGURATION prior to making any changes so you won't forget what they
were before and if something messes up you can re-load the previous
version.


Jim Sheldon, W0EB




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Re: [Elecraft] OT: 20M moving QRM

[Scott Ellington]

On 3/3/2016 14:47, Fred Jensen wrote:

QRN, not QRM
I thought QRN was exclusively atmospheric noise.  Perhaps we need a new 
Q code for man-made garbage.


73,

Scott  K9MA

--
Scott Ellington  K9MA
Madison, Wisconsin, USA

k...@sdellington.us

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Re: [Elecraft] K3s using RS232 v USB?

[Don Wilhelm]

Tom,

The only 'cons' that I can think of is the computer OS support for the 
device in the K3S (which really is an internal USB to RS-232 adapter).
It will work just as well and likely better than an external USB to 
serial adapter.
Support for USB to serial adapters was a bit 'flaky' back in 2008 when 
the K3 was announced, but as time has gone by, I have found USB devices 
are fully supported by most computers.


Of course, if the computer has real RS-232 ports, those are usually 
independent of OS support issues - all OS variations I know about 
support the RS-232 port directly - even if the computer does not have an 
RS-232 port connection.


73,
Don W3FPR

On 3/3/2016 2:13 PM, cx...@4email.net wrote:


I would like to know exactly what would be sacrificed by the convenience
of using the USB to computer vs an external interface. So what are the
con(s)?




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[Elecraft] OT: 20M moving QRM

[Fred Jensen]

QRN, not QRM.  I can't see what the span is on your panadapter, but it 
has all the characteristics of an SMPS ... they're all over the place, 
you're probably seeing more than one.


When we were in CA on 5 acres in a rural area, I hosted the neighborhood 
wireless on my tower in return for free I'net at the backhaul speed [~90 
Mbps].  No problems except a few weak narrowband discrete birdies 
[clocks and LO's], and I learned where they were.


They replaced their equipment with new stuff and a new router powered by 
a Chinese RPOJ** SMPS in our equipment shed with a 24 VDC line up to the 
top of the tower resembling an 80 m Inv-L.  Looked just like your 
picture with a wide span on the P3, only MUCH stronger ... in the -70 
dBm range on 80, a bit weaker on 40 and 20.  Drifted slowly back and forth.


Since they had a number of neighbors as paying customers and really 
coveted the space at the top of the tower, I told them I'd wind chokes 
according to the "K9YC Recipe," and watch them install them.  Otherwise 
they could put in a "real" linear power supply.  The chokes did the 
trick.  If you can find the offending supply(s) which may be nothing 
more than wall warts, you might be able to choke the noise out.


73,

Fred K6DGW
- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org

**RPOJ: Real Piece Of Junk

On Thu, 2016-03-03 at 10:05 -0800, David Ahrendts wrote:
> Does anyone recognize this moving QRM? Last evening 6:30pm. Band is
> dead. Ambient noise pretty calm. But notice the slowly moving noise
> bumps on the K3S SVGA display. Might this be weather radar?   https:/
> /vimeo.com/157616344
>
> David A., KK6DA, LA
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Re: [Elecraft] OT 20M Moving QRM (Video)

[lstavenhagen]

I too have this all over the place on the lower bands (80 and 40 mostly) at
home. I've always thought it was noise from the Faraday cage my indoor
antennas have to be inside of causing it. When I'm /P in the hills outside
of of town I never hear this...

73,
LS
W5QD



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Re: [Elecraft] OT 20M Moving QRM (Video)

[Dave Cole]

Thank you Jim, I have always thought it might be, but I have never been
able to actually unplug one, and have it go away...  There is one in
the area, that covers several blocks my self and another ham have been
looking for for a few years now...
-- 
73's, and thanks,
Dave (NK7Z)

For software/hardware reviews see:
http://www.nk7z.net

For MixW support see:
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On Thu, 2016-03-03 at 10:22 -0800, Jim Brown wrote:
> On Thu,3/3/2016 10:05 AM, David Ahrendts wrote:
> > Does anyone recognize this moving QRM? Last evening 6:30pm. Band is
> > dead. Ambient noise pretty calm. But notice the slowly moving noise
> > bumps on the K3S SVGA display. Might this be weather radar?   https
> > ://vimeo.com/157616344
> 
> Nope. It's a switch-mode power supply, the sort of thing that powers 
> almost anything we buy nowadays -- it's in the wall warts for all
> sorts 
> equipment, battery chargers, computers, even built into home
> electronics.
> 
> 73, Jim K9YC
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Re: [Elecraft] OT 20M Moving QRM (Video)

[Dave Cole]

That is not an ionosonde...  They are a pure carrier moving at a steady
speed, and they sweep MUCH faster than that.
-- 
73's, and thanks,
Dave (NK7Z)

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On Thu, 2016-03-03 at 11:16 -0700, Ken G Kopp wrote:
> Google "Ionospheric sounder".  There are lots of them around the
> world that
> operate 24/7 and this may be one of them.
> 
> 73
> 
> Ken Kopp - K0PP
> On Mar 3, 2016 11:06 AM, "David Ahrendts" 
> wrote:
> 
> > Does anyone recognize this moving QRM? Last evening 6:30pm. Band is
> > dead.
> > Ambient noise pretty calm. But notice the slowly moving noise bumps
> > on the
> > K3S SVGA display. Might this be weather radar?
> > https://vimeo.com/157616344
> > 
> > David A., KK6DA, LA
> > 
> > 
> > 
> > David Ahrendts   davidahren...@me.com
> > 
> > 
> > 
> > 
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Re: [Elecraft] K3s using RS232 v USB?

[lstavenhagen]

The only con, really, is being tied to an RF-hash producing, frantic,
freezing, crashing computer if you want to operate your radio. I'm a SW
developer and I have to fight those things all day, every day so that's the
indelible image in my mind when trying to mix my Mac with Ham Radio - so I
tend to try to avoid having to use a computer for my radio ops if I can help
it. Just give me a Vibroplex and a notebook and I'm happy.

Otherwise, there are no negatives to using the USB support over the RS232
that I can see. I believe both Windows and MacOS already have driver support
for the internals inside the K3S, so the basics like using the K3 utility
and using its audio devices within applications with sound support is pretty
much plug-and-play. 

I believe the K3 utility worked out-of-the-box on my Mac with my K3S when I
checked it over a few weeks ago. 

73,
LS
W5QD



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Re: [Elecraft] OT 20M Moving QRM (Video)

[Dave Cole]

Hi,
I do not but I have the exact same sounding QRM, and it is spread out
as well... If you ever find out what it is, please let me know...  I
have had this for years, and always wondered...
-- 
73's, and thanks,
Dave (NK7Z)

For software/hardware reviews see:
http://www.nk7z.net

For MixW support see:
https://groups.yahoo.com/neo/groups/mixw/info

For SSTV help see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info


On Thu, 2016-03-03 at 10:05 -0800, David Ahrendts wrote:
> Does anyone recognize this moving QRM? Last evening 6:30pm. Band is
> dead. Ambient noise pretty calm. But notice the slowly moving noise
> bumps on the K3S SVGA display. Might this be weather radar?   https:/
> /vimeo.com/157616344 
> 
> David A., KK6DA, LA
> 
> 
> 
> David Ahrendts   davidahren...@me.com   
> 
> 
> 
> 
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Re: [Elecraft] K3S USB port

[Bill]

On the K3, the serial port is perfect - for use with either a real 
serial port or a USB adapter.  I prefer going direct to a real serial 
port, without any adapter.


Is the USB in the K3S merely a built-in adapter? That would eliminate a 
problem some ops have had with external adapters (Prolific??).


Bill W2BLC K-Line

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Re: [Elecraft] K3S USB port

[Cady, Fred]

Hi Jim,
It's my understanding that the RS232 port is live for serial data out from the 
K3 (RXD) but not for serial data in (TXD).
Have you tried to use the K3 Utility with your set up? That would require 
bidirectional serial data and in theory shouldn't work.
Cheers,
Fred KE7X



From: Elecraft  on behalf of Jim Sheldon 

Sent: Thursday, March 3, 2016 10:48 AM
To: Elecraft Mailing List
Subject: [Elecraft] K3S USB port

First off, this is NOT a complaint, merely an observation. and in my
opinion, worthy of note for the programmers to check out.  I didn't
think this was supposed to work but it seems to work quite well, at
least in my case.

I am using serial RS-232 with the following cabling - Desktop COM-1 to
P3, P3 to K3S using the DE-9 to RJ-45 adapter (not the two headed cable
between the P3 and K3S) from my desktop computer.  I am also running the
USB port cable to a Raspberry Pi model 2, single board Linux computer
with the K3S configured as the USB Audio Codecs AND serial comms using
/devttyUSB0 for rig control with VOX for PTT, in FLDIGI on the Raspberry
Pi.  All serial speeds are set to 38.4K baud.

The P3 still indicates the K3S frequency as I tune (slight delay),
FLDIGI on the Pi 2 indicates the K3S frequency as I tune.  TX/RX audio
from and to FLDIGI on the Pi 2 work properly, and I am able to make
contacts with no problem as well.  I can also tune the K3S using
FLDIGI's frequency control.  I am using N3FJP's AC Log program on the
big desktop computer for logging and it also displays the proper
band/mode from the K3S.  It also follows frequency changes made by the
FLDIGI program on the Pi 2.  I did not attempt to configure DTR or RTS
for push to talk as VOX works so well.

It was my original understanding that you couldn't do this (RS-232 using
the RJ-45 jack AND the USB port simultaneously).  I DO have the K3S
RS-232 configured to USB in the menu.  The difference may be due to the
fact that I'm using two separate computers here with both
talking/listening to the K3S.

I'm running FW version UC 5.46, DSP 1 and 2  version 2.86, FL version
1.25 on the K3S and MCU 1.57, SVGA 1.31 and the FPGA's 1.04 in the P3.

DISCLAIMER: If anyone else tries this, make sure to SAVE YOUR
CONFIGURATION prior to making any changes so you won't forget what they
were before and if something messes up you can re-load the previous
version.


Jim Sheldon, W0EB




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[Elecraft] K3s using RS232 v USB?

[cx7tt]

Am in the process of setting up K3s and would like advice on the pro/con
of using RS232 via interface (mKII) to computer or simply USB port to
computer. One pro is obvious to me, such as eliminating the Hydra cable
between my microHam MKII and rig. BTW, the mKII is great piece of "kit"
which I have had for over 8 years, first on Orion II then K3 #250. Never
an issue, always worked perfectly...kinda like an autopilot, one never
thinks about what it does, until it fails.

As a heavy equipment operator, B777/787 (instructor pilot) the A/P is
engaged after take off and the jet flies itself (via computer inputs) to
touchdown in LU land 9 hours later; a total A/P failure has never
happened in those aircraft, what with redundancy, but if it did, it
would be like 9 hours of operating a dxpedition with paper log and bug.

As CX7TT/CW7T, made over 30k Qs in 10 years on all modes but mostly cw
and RTTY. Even did 1st moon bounce with W7GJ from MT to CX. So now you
have an idea of what and how I operate...throw in a little PSK and WSJT.

Now, I have looked for info on Nabble so as to not invent the wheel, the
K3s manual and Fred, KE7X, excellent K3s/P3 manual, Ch 10 KIO3B which
shows the many variations to configure and setup. I am not an EE or
electronics technician, simply an appliance operator, so I need you guys
to keep it simple!

I would like to know exactly what would be sacrificed by the convenience
of using the USB to computer vs an external interface. So what are the
con(s)?

Thanks for reading.

73
Tom
CX7TT, HP1/K6CT
K3s #ATENN

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[Elecraft] K3S, Raspberry Pi 3 and FLDIGI

[Jim Sheldon]

First off, this is NOT a complaint, merely an observation. and in my 
opinion, worthy of note for the programmers to check out. I didn't think 
this was supposed to work but it seems to work quite well, at least in 
my case.


I am using serial RS-232 with the following cabling - Desktop COM-1 to 
P3, P3 to K3S using the DE-9 to RJ-45 adapter (not the two headed cable 
between the P3 and K3S) from my desktop computer. I am also running the 
USB port cable to a Raspberry Pi model 2, single board Linux computer 
with the K3S configured as the USB Audio Codecs AND serial comms using 
/devttyUSB0 for rig control with VOX for PTT, in FLDIGI on the Raspberry 
Pi. All serial speeds are set to 38.4K baud.


The P3 still indicates the K3S frequency as I tune (slight delay), 
FLDIGI on the Pi 2 indicates the K3S frequency as I tune. TX/RX audio 
from and to FLDIGI on the Pi 2 work properly, and I am able to make 
contacts with no problem as well. I can also tune the K3S using FLDIGI's 
frequency control. I am using N3FJP's AC Log program on the big desktop 
computer for logging and it also displays the proper band/mode from the 
K3S. It also follows frequency changes made by the FLDIGI program on the 
Pi 2. I did not attempt to configure DTR or RTS for push to talk as VOX 
works so well.


It was my original understanding that you couldn't do this (RS-232 using 
the RJ-45 jack AND the USB port simultaneously). I DO have the K3S 
RS-232 configured to USB in the menu. The difference may be due to the 
fact that I'm using two separate computers here with both 
talking/listening to the K3S.


I'm running FW version UC 5.46, DSP 1 and 2 version 2.86, FL version 
1.25 on the K3S and MCU 1.57, SVGA 1.31 and the FPGA's 1.04 in the P3.


DISCLAIMER: If anyone else tries this, make sure to SAVE YOUR 
CONFIGURATION prior to making any changes so you won't forget what they 
were before and if something messes up you can re-load the previous 
version.


Further notes on the subject:
I just thought of the possibility that FLDIGI on the Raspberry Pi 2 is 
echoing the K3S data on /devttyUSB0 and that's possibly how the P3 is 
getting the frequency changes.


Yup, I just closed FLDIGI on the Pi 2 and now the P3 no longer gets the 
frequency data from the K3S as I have it configured.  Turns out 
everything was working as it should and the anomaly was caused by the 
running program on the 2nd computer.  Might prove useful in some cases 
but I can see it may not be reliable.



Jim Sheldon, W0EB


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Re: [Elecraft] OT 20M Moving QRM (Video)

[Jim Brown]

On Thu,3/3/2016 10:05 AM, David Ahrendts wrote:

Does anyone recognize this moving QRM? Last evening 6:30pm. Band is dead. 
Ambient noise pretty calm. But notice the slowly moving noise bumps on the K3S 
SVGA display. Might this be weather radar?   https://vimeo.com/157616344


Nope. It's a switch-mode power supply, the sort of thing that powers 
almost anything we buy nowadays -- it's in the wall warts for all sorts 
equipment, battery chargers, computers, even built into home electronics.


73, Jim K9YC
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Re: [Elecraft] OT 20M Moving QRM (Video)

[Ken G Kopp]

Google "Ionospheric sounder".  There are lots of them around the world that
operate 24/7 and this may be one of them.

73

Ken Kopp - K0PP
On Mar 3, 2016 11:06 AM, "David Ahrendts"  wrote:

> Does anyone recognize this moving QRM? Last evening 6:30pm. Band is dead.
> Ambient noise pretty calm. But notice the slowly moving noise bumps on the
> K3S SVGA display. Might this be weather radar?
> https://vimeo.com/157616344
>
> David A., KK6DA, LA
>
>
>
> David Ahrendts   davidahren...@me.com
>
>
>
>
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[Elecraft] OT 20M Moving QRM (Video)

[David Ahrendts]

Does anyone recognize this moving QRM? Last evening 6:30pm. Band is dead. 
Ambient noise pretty calm. But notice the slowly moving noise bumps on the K3S 
SVGA display. Might this be weather radar?   https://vimeo.com/157616344 

David A., KK6DA, LA



David Ahrendts   davidahren...@me.com   




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[Elecraft] K3S USB port

[Jim Sheldon]

First off, this is NOT a complaint, merely an observation. and in my 
opinion, worthy of note for the programmers to check out.  I didn't 
think this was supposed to work but it seems to work quite well, at 
least in my case.


I am using serial RS-232 with the following cabling - Desktop COM-1 to 
P3, P3 to K3S using the DE-9 to RJ-45 adapter (not the two headed cable 
between the P3 and K3S) from my desktop computer.  I am also running the 
USB port cable to a Raspberry Pi model 2, single board Linux computer 
with the K3S configured as the USB Audio Codecs AND serial comms using 
/devttyUSB0 for rig control with VOX for PTT, in FLDIGI on the Raspberry 
Pi.  All serial speeds are set to 38.4K baud.


The P3 still indicates the K3S frequency as I tune (slight delay), 
FLDIGI on the Pi 2 indicates the K3S frequency as I tune.  TX/RX audio 
from and to FLDIGI on the Pi 2 work properly, and I am able to make 
contacts with no problem as well.  I can also tune the K3S using 
FLDIGI's frequency control.  I am using N3FJP's AC Log program on the 
big desktop computer for logging and it also displays the proper 
band/mode from the K3S.  It also follows frequency changes made by the 
FLDIGI program on the Pi 2.  I did not attempt to configure DTR or RTS 
for push to talk as VOX works so well.


It was my original understanding that you couldn't do this (RS-232 using 
the RJ-45 jack AND the USB port simultaneously).  I DO have the K3S 
RS-232 configured to USB in the menu.  The difference may be due to the 
fact that I'm using two separate computers here with both 
talking/listening to the K3S.


I'm running FW version UC 5.46, DSP 1 and 2  version 2.86, FL version 
1.25 on the K3S and MCU 1.57, SVGA 1.31 and the FPGA's 1.04 in the P3.


DISCLAIMER: If anyone else tries this, make sure to SAVE YOUR 
CONFIGURATION prior to making any changes so you won't forget what they 
were before and if something messes up you can re-load the previous 
version.



Jim Sheldon, W0EB




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Re: [Elecraft] KX3 QSK

[Hjalmar Duklæt]

Me too. In find that the "NEW QSK" is the same as the "OLD QSK" with a slight 
delay. It's better to turn down the RF gain if you get too much "popping" sound 
in your audio.
73 de Hal/LA4XX

On 16-03-02 17:47, Ray W2RS via Elecraft   wrote:
> 
> The KX3 "NEW QSK" mode may be better on whatever noisy band it was tested 
> on, but I still like the old QSK mode better due to its faster response. 
> Thanks for making it switchable.
>  
> 73 Ray W2RS
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