Re: [Elecraft] KX2 Drift During Field Day

[Walter Underwood]

That was my thought, too. Dang, that is excellent frequency stability! The spec 
is "+/- 1 ppm typical at 25 C after 5-minute warm-up."

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

> On Jun 29, 2020, at 5:20 PM, Jay Rutherford  wrote:
> 
> ONE Hertz??
> 
> 73
> Jay K3BH
> 
> On Mon, Jun 29, 2020, at 18:35, Ian Kahn, NV4C wrote:
>> All,
>> 
>> I have KX2 s/n 2862. I noticed while operating Field Day that, about 
>> every 15 minutes, it would drift down 1 Hz. Has anyone else ever seen 
>> this in their KX2? I will admit it is possible this was just the effect 
>> of RF getting back into the rig, but at 10W, I'm not really sure where 
>> enough would come from to cause an issue.
>> 
>> Thanks and 73,
>> 
>> Ian, NV4C
>> 
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Re: [Elecraft] K4 on Digital Modes

[Bill Frantz]

RUMlogNG, a Mac logging program will allow a kind of 
conversional mode in its contest form. You can click to send and 
type whatever you want. It does handle macros nicely, which is 
needed for contesting. I suspect it breaks down long messages 
into shorter commands.


I use if frequently for CW and RTTY contesting, and it works 
well. I rarely use the conversational mode in contesting, and 
manually switching between transmit and receive is a pain.


73 Bill AE6JV

On 6/28/20 at 10:07 PM, j...@ko8v.net (Joe DeVincentis) wrote:

I am aware of the KY command, but it is limited to 24 
characters per command.  And as far as I can tell no system 
supports it in a conversational mode (e.g. fldigi, mmtty, etc) 
in the same way an external modem is supported.


Joe, KO8V


On Jun 28, 2020, at 20:21, Bill Frantz  wrote:

The K3 will accept a command through the CAT interface to send CW/RTTY/PSK. 
The K4 should as well.



---
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Peterborough, NH 03458


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Re: [Elecraft] K4 Books

[Jim Brown]

On 6/29/2020 7:09 PM, Don Wilhelm wrote:
Fred addressed 3 different learning methods in his books.  First was 
those who learn by reading (I am one of those), 2nd is those who learn 
from examples (expanded reading) and thirdly those who learn from 
hands-on exercises.  Fred addressed all 3 in his books.
He did comment that there was nothing in his books that was not in the 
Elecraft manual, but his approach to presenting the material was 
different.  That is why his books exceed 200 pages while the Elecraft 
manuals are usually in the vicinity of 100 pages.


After college, I taught at DeVry in Chicago for five years. Good 
teachers, like good writers, learn to "tell the story" in a manner that 
the targeted audience can understand. I found that I could usually tell 
the story in a manner that 80-90% of the class could follow, but there 
were always a few guys whose mind worked differently enough that they 
didn't. When that happened, I had to first probe to figure out what they 
didn't "get," or what background knowledge was missing, and build the 
story in a different form.


I still give talks regularly at ham events, and spend a LOT of time 
preparing slides, then spend a lot of time rehearsing so that I fit into 
the allotted time. And I ask for a LOT of time for one very important 
reason. I can explain most things to folks well-educated in the topic at 
hand (whether formally or informally) in 5-10 minutes, but if I want 
most of the room to get it, I've got to take my time, build that story 
for the guys with the least background. And for most topics I present, 
that's an hour or so.


I also like to use graphs, simple block diagrams, and photos a lot. I 
think that helps give the listener/reader more to help them understand.


73, Jim K9YC
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[Elecraft] Field Day @ W4UA

[aj4tf]

Once again, W4UA (High Point [NC] Amateur Radio Club) was all Elecraft;  two
K2/100s and one K3S/100.  OK, we did have an FT-991 there for a little
while, and it made some 10m contacts in place of one of the K2s, but the
bulk of the work was done by the E's.   No radio issues, just some really
interesting conditions and lots of stations QRMing each other.   We did a
little better than last year, but who's counting, since it's not a contest? 
(yeah, right).

Thanks Wayne and Eric, and all of your team,  for some really great radios.

73,
David AJ4TF
K3S 10669, K2 7006, K2 7841

https://www.facebook.com/groups/1115159045192839





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Re: [Elecraft] K4 Books

[Don Wilhelm]

Skip,

Fred addressed 3 different learning methods in his books.  First was 
those who learn by reading (I am one of those), 2nd is those who learn 
from examples (expanded reading) and thirdly those who learn from 
hands-on exercises.  Fred addressed all 3 in his books.
He did comment that there was nothing in his books that was not in the 
Elecraft manual, but his approach to presenting the material was 
different.  That is why his books exceed 200 pages while the Elecraft 
manuals are usually in the vicinity of 100 pages.


On 6/29/2020 7:37 PM, Fred Jensen wrote:
I found that the value in Fred's book was due to approach.  The K3 
manual is good ... very good ... and like most all user manuals, takes a 
"control approach" -- "The SHIFT and WIDTH controls adjust the center 
frequency and the width of the DSP filtering."  Fred's book explains 
what the DSP filtering is, the effects the controls have on it, and how 
it affects operation of the radio.


I'm not suggesting the "control approach" is wrong or bad, user manuals 
need to explain what each control does.  It's just a different approach 
to the subject.  I find both very useful.


 From what little I know about the K4, I can't imagine that either a K3 
manual or Fred's K3 book would be of much value for a new K4 owner.


73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 6/29/2020 4:20 PM, Don Wilhelm wrote:

Tongue planted firmly in cheek --
What? Study the manual?  We are hams and can just push buttons and 
turn knobs and see what happens!


Seriously, I think some hams really do it that way.

How much more pleasure would they get out of their gear if they took 
the time to study the manual.  That is NOT a casual perusal paging 
through the manual.
That is sitting down in front of the radio with the manual open and 
identifying things as well as trying things out with a dummy load when 
it involves transmitting.


73,
Don W3FPR

On 6/29/2020 7:06 PM, Jim Brown wrote:


Maybe study the manual? Worked fine for me with most ham gear I've 
owned, including the K3 and companion products.




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Re: [Elecraft] K4 Books

[Paul Van Dyke]

Hey Rick

"Rick N6XI"
"K4 #00012"

Thhpptpt.

Paul - KB9AVO
on the early list for the K4 also
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Re: [Elecraft] KX2 Drift During Field Day

[WILLIE BABER]

 1 hz? My hallicrafters crystal controlled oscillator was rated less than 400 
hz an hour drift after warm- up (it will do much better than that after 1 hour 
of warmup), That was considered very stable in 1962. I still use it in short 
qsos where I barely hear 10 hz of drift in 5 minutes, after an one hour warmup. 

How soon we forget!

73, will, wj9b

CWops #1085
CWA Advisor levels II and III
http://cwops.org/

 On Monday, June 29, 2020, 06:21:33 PM MDT, Jay Rutherford  
wrote:  
 
 ONE Hertz??

73
Jay K3BH

On Mon, Jun 29, 2020, at 18:35, Ian Kahn, NV4C wrote:
> All,
> 
> I have KX2 s/n 2862. I noticed while operating Field Day that, about 
> every 15 minutes, it would drift down 1 Hz. Has anyone else ever seen 
> this in their KX2? I will admit it is possible this was just the effect 
> of RF getting back into the rig, but at 10W, I'm not really sure where 
> enough would come from to cause an issue.
> 
> Thanks and 73,
> 
> Ian, NV4C
> 
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[Elecraft] Diversity receive versus QRM eliminators

[Dick Dickinson]

This is a topic that interests me.  I have a wrinkle to add.

 

Qualifications:  I am a generalist rag-chew HF phone operator / listener.
I'm not seeking rare DX nor exploring weak signals in general nor a
competitive operator.

 

I'm currently running K3(-s) with a DXE NCC-2 and a 2 x 6 remote antenna
switch.  I also have an MFJ-1026 but have not done A / B testing comparing
the 2 units.  The 2 x 6 remote antenna switch allows me to select any of 6
for the Main / TX antenna and any of the 5 remaining as the RX / Noise
antenna.  

 

Now to the wrinkle.  Antenna modeling has shown me that Inverted Vee
antennas favor Vertical Polarization off the ends and Horizontal
Polarization on the broadsides.  I have two Inverted Vees up for 40 meters.
The apex of each is about 38'.  They are a nominal quarter wavelength apart
in spacing AND orthogonal to each other.  That gives me the opportunity to
take some advantage of polarization per direction / selection of antenna.

 

In any event, that's the setup.  I don't presently have any great findings
to share.  At it simplest, I can select one or the other singly to lessen
noise bidirectionally.  The noise canceling unit isn't necessary for
that.just the difference in polarization of the two antennas used singly can
be helpful.  The orthogonal antennas do give me an additional variable to
utilize as far as noise diminishing / signal enhancing.

 

I've not had all this together for too long.  I'm hoping the setup with
various antennas will prove effective in many circumstances.  I believe I
have demonstrated that to my general satisfaction.  Sometimes I've been able
to bring out an otherwise unheard side of a QSO by adjusting.  SSB is tricky
to gauge Signal to Noise Ratio with signals jumping up and down as well as
background noises such at lighting intervening.  A visual display such as a
spectrum scope helps, especially with overall background noise. 

 

People familiar with operating Noise Canceling units may suggest that there
is little automatic about them.  It often takes some work.  If you have a
single source noise and an appropriate antenna setup, they can be quite
effective.  Many think that antennas 'should be' as alike as possible in
orientation and phase.  Others offer differing viewpoints.

 

I couple of times I have read that an Antenna Noise Canceling unit 'cannot'
take out lightning static.  In some circumstances I have been able to
substantially diminish lightning static from beyond the horizon for a
much-improved S/N ratio.  It is not easy and far from for sure with any
lightning storm but on some occasions, it can be done.

 

 

Digitization of some aspects of Antenna Noise Canceling is hopefully not too
far out in time.  Direction determination with stationary (and unswitched)
antennas.a great bonus should that happen.

 

 

As ever,

Dick - KA5KKT

 

 

 

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[Elecraft] K3 at Field Day

[Tom Doligalski via Elecraft]

I ran my K3 hard this year as 1D in Field Day. What a champ: never even got 
warm!

Maybe a K4 next year?

Tom W4KX

Sent from my iPad 
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Re: [Elecraft] K4 Books

[John Simmons]

Hence: "RTFM". I have a mug.

-de John NI0K

Don Wilhelm wrote on 6/29/2020 6:20 PM:

Tongue planted firmly in cheek --
What? Study the manual?  We are hams and can just push buttons and 
turn knobs and see what happens!


Seriously, I think some hams really do it that way.

How much more pleasure would they get out of their gear if they took 
the time to study the manual.  That is NOT a casual perusal paging 
through the manual.
That is sitting down in front of the radio with the manual open and 
identifying things as well as trying things out with a dummy load when 
it involves transmitting.


73,
Don W3FPR

On 6/29/2020 7:06 PM, Jim Brown wrote:


Maybe study the manual? Worked fine for me with most ham gear I've 
owned, including the K3 and companion products.


73, Jim K9YC

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Re: [Elecraft] K4 Books

[Rick Tavan]

If you're already comfortable with the K3, you'll be comfortable with the
K4 in a matter of hours. You "won't need no steenkeeng book." The screen is
totally different in layout and appearance but supports many of the
functions you've come to understand and (hopefully) love in K3/P3. Most of
the nomenclature is the same as is the buttonology. If you're new to the
Elecraft family of radios, you might prefer a Cady-style book to the
Elecraft manual, although many users (like me) find the Elecraft manuals
sufficient, much better than some transceiver user guides out there. I
don't recommend an Elecraft newbie spend a lot of time with K3
documentation, from either source, as a head start on the K4. It couldn't
hurt and it might assuage the delivery anxiety a bit but IMHO it would be
better just to download the K4 manual when it becomes available.

Rick N6XI
K4 #00012

On Mon, Jun 29, 2020 at 4:21 PM Don Wilhelm  wrote:

> Tongue planted firmly in cheek --
> What? Study the manual?  We are hams and can just push buttons and turn
> knobs and see what happens!
>
> Seriously, I think some hams really do it that way.
>
> How much more pleasure would they get out of their gear if they took the
> time to study the manual.  That is NOT a casual perusal paging through
> the manual.
> That is sitting down in front of the radio with the manual open and
> identifying things as well as trying things out with a dummy load when
> it involves transmitting.
>
> 73,
> Don W3FPR
>
> On 6/29/2020 7:06 PM, Jim Brown wrote:
> >
> > Maybe study the manual? Worked fine for me with most ham gear I've
> > owned, including the K3 and companion products.
> >
> > 73, Jim K9YC
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>


-- 
--

Rick Tavan
Truckee and Saratoga, CA
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Re: [Elecraft] K4 Books

[Ian Kahn]

For my K3, I DID study the manual. I also bought and read Dr. Cady's book.
Each was valuable in its own way. No reason not to use both.

73 de,

Ian, NV4C

On Mon, Jun 29, 2020 at 7:07 PM Jim Brown  wrote:

> On 6/29/2020 3:57 PM, Matt Maguire wrote:
> > I would suggest that the architecture of the K4 is a significant
> departure
> > from the K3 series, and I would think that the books treating the K3
> would
> > be of limited usefulness in understanding how to get the most out of the
> K4.
>
> Maybe study the manual? Worked fine for me with most ham gear I've
> owned, including the K3 and companion products.
>
> 73, Jim K9YC
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-- 
Ian Kahn, NV4C
Roswell, GA  EM74ua
nv4c@gmail.com
10-10 #74624  North Georgia Chapter #2038
PODXS 070 #1962
K3 #281, P3 #688 KAT500 #860, KPA500 #1468
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Re: [Elecraft] K4 Books

[Ian Kahn]

Matt,

I would think so, too. However, a lot of the comments seen on this
reflector talk about how similar they are, and that if a user is familiar
with a K3/K3S, s/he will have no problem with the K4. So, at the risk of
looking foolish, I pose the question. No harm in asking. However, I would
like a definitive answer from either Eric/Wayne, or someone from the test
team.

73 de,

Ian, NV4C

On Mon, Jun 29, 2020 at 6:58 PM Matt Maguire  wrote:

> I would suggest that the architecture of the K4 is a significant departure
> from the K3 series, and I would think that the books treating the K3 would
> be of limited usefulness in understanding how to get the most out of the K4.
>
> 73, Matt VK2RQ
>
> On Tue, 30 Jun 2020 at 08:42, Ian Kahn, NV4C  wrote:
>
>> All,
>>
>> I have a question that is probably best answered by Eric, Wayne, or one
>> of the K4 testers. Since Fred Cady, KE7X (sk), is no longer with us to
>> write a K4 book, are the UI and firmware close enough to that of the
>> K3/K3S that we can use those books to learn it? Or, is Elecraft working
>> with another author (hopefully of Fred's skill and stature, but that
>> would be very hard to find) to write a supplemental K4 book? Or, are we
>> all just out of look in that department?
>>
>> Thanks and 73,
>>
>> Ian, NV4C
>>
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>>
>

-- 
Ian Kahn, NV4C
Roswell, GA  EM74ua
nv4c@gmail.com
10-10 #74624  North Georgia Chapter #2038
PODXS 070 #1962
K3 #281, P3 #688 KAT500 #860, KPA500 #1468
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Re: [Elecraft] Diversity receive versus QRM eliminators

[hb9cvq]

Gernot,
Why ? Generally you need to make sure you are not overloading/destroying  RXin 
K3.

73 Andy HB9CVQ

-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of g...@gmx.net
Sent: Montag, 29. Juni 2020 23:37
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Diversity receive versus QRM eliminators

Andy,
mni tnx - good ideas! Will rewire my QRM box to the K3 RXIn out to avoid the 
extra PTT-relay clicks imposed by the QRM-box. It is the Wimo-QRM Eliminator. 
Not as Hi -end as the NCC-1 but a start.
Just looked-up the DXE  - now the NCC-2 is out and it now also has the same 
extra PTT switching as my cheap box! Why is this required, as I just learned 
the K3 can handle this smoothly?

tnx 73 Gernot DF5RF


Am 29.06.2020 um 22:51 schrieb hb9...@hispeed.ch:
> Hi All,
>
> I use in my K3S the RX in and RX out (RCA plugs) on the backside for 
> inserting the denoised signal  from my DXE NCC-1 Phasing Box output plug.
> This box has two channels, were one can do e.g. up to -180deg phase 
> reversal. CH A and B signals are finally send to an internal power 
> combiner and to K3S RX in.
>
> My have 2 selectable TX/RX antennas, 2x36m tuned doublet 160 to 6m @ 
> 24m center and a Steppir DB18E @ 18m.
> RX signal come out safely from K3S RX (out) going to CH A NCC-1.
> My QRM local noise pick-up ant is a 1m diameter ALA 1530 electronic mag.
> loop (predominantly picking up local noise, no DX , horizontally 
> mounted in the attics, about -60dB decoupled from TX antennas) This 
> signal goes into CH B of NCC-1 By carefully equalizing/adjusting the 
> amplitudes CH1 /CH2 NCC-1 I then try do "Anti Phase". This will mostly 
> reduce the local noise on the used main antenna.
>
> The limitation is you can only effectively  focus (phase) on one 
> single local QRM source. The unit NCC-1 is good up to around 17m Band. 
> It is hard to get more than 20dB S/N (about 2.5 S-Units) improvement.
>
> In some local noise cases, not being a point source (Line source : PLC 
> , VDSL etc. ) I am more successful using a LISN ( EMC , Line/Mains 50 
> Ohm stabilization, decoupling network, 230V, 50 Hz) to safely replace 
> the signal from the mag. loop.
> This procedure picks up the conducted noise on the mains in the 
> house/flat more in an integral way. This does not act as a "point source"
>
> Experiments with predominantly E-field ( small/short dipole antennas) 
> for local noise pick up are ongoing.
>
> 73  Andy
> HB9CVQ, DK2VQ, AK4IG
> https://www.qrz.com/db/HB9CVQ
>
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net 
>  On Behalf Of donov...@starpower.net
> Sent: Montag, 29. Juni 2020 19:51
> To: Elecraft Reflector 
> Subject: Re: [Elecraft] Diversity receive versus QRM eliminators
>
> Diversity is not helpful as a QRM eliminator.
>
>
> Antennas with steerable nulls can be helpful, small loop antennas have 
> very deep nulls but also require a high gain, low noise figure preamp 
> and very careful attention to common mode rejection during 
> installation
>
>
> 73
> Frank
> W3LPL
>
> - Original Message -
>
> From: g...@gmx.net
> To: "Elecraft Reflector" 
> Sent: Monday, June 29, 2020 5:18:30 PM
> Subject: [Elecraft] Diversity receive versus QRM eliminators
>
> Hello all,
> In a recent rush to eliminate urban noise I bought an QRM eliminator.
> The working principle is to null out signals by shifting the phases of 
> two antennas (one main/tx and one rx). I can see the effect sometimes, 
> but it is not the holy grail for all types of QRM. I still don't get 
> rid of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit 
> better but maybe thats my inner impression to justify buying this thing.
> Now, I do wonder how this differs from diversity receive, effectively 
> versus local QRM.
> Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal.
>
> Any thoughts or hints ?
> tnx 73 Gernot DF5RF
>
>
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Re: [Elecraft] KX2 Drift During Field Day

[Jay Rutherford]

ONE Hertz??

73
Jay K3BH

On Mon, Jun 29, 2020, at 18:35, Ian Kahn, NV4C wrote:
> All,
> 
> I have KX2 s/n 2862. I noticed while operating Field Day that, about 
> every 15 minutes, it would drift down 1 Hz. Has anyone else ever seen 
> this in their KX2? I will admit it is possible this was just the effect 
> of RF getting back into the rig, but at 10W, I'm not really sure where 
> enough would come from to cause an issue.
> 
> Thanks and 73,
> 
> Ian, NV4C
> 
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[Elecraft] HAVE KX-3 Loaded will trade for K-3s + $$

[George P Linehan III via Elecraft]

Thank you & 73!!!
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Re: [Elecraft] KX2 Drift During Field Day

[Ian Kahn]

Not directly. I was outside, but under a pop-up canopy.

Thanks and 73,

Ian, NV4C

On Mon, Jun 29, 2020 at 7:39 PM Fred Jensen  wrote:

> Was it in the sun?
>
> 73,
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
>
> On 6/29/2020 3:35 PM, Ian Kahn, NV4C wrote:
> > All,
> >
> > I have KX2 s/n 2862. I noticed while operating Field Day that, about
> > every 15 minutes, it would drift down 1 Hz. Has anyone else ever seen
> > this in their KX2? I will admit it is possible this was just the
> > effect of RF getting back into the rig, but at 10W, I'm not really
> > sure where enough would come from to cause an issue.
> >
> > Thanks and 73,
> >
> > Ian, NV4C
>
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-- 
Ian Kahn, NV4C
Roswell, GA  EM74ua
nv4c@gmail.com
10-10 #74624  North Georgia Chapter #2038
PODXS 070 #1962
K3 #281, P3 #688 KAT500 #860, KPA500 #1468
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Re: [Elecraft] K4 Books

[Doug Daniels]

 As I am reading the manual for my new KX2, and watching a YouTube where
the guy was testing the rig with it set to 0 power.  I just ordered the
dummy load from Elecraft. Thanks for the suggestion.

On Mon, Jun 29, 2020 at 7:21 PM Don Wilhelm  wrote:

> Tongue planted firmly in cheek --
> What? Study the manual?  We are hams and can just push buttons and turn
> knobs and see what happens!
>
> Seriously, I think some hams really do it that way.
>
> How much more pleasure would they get out of their gear if they took the
> time to study the manual.  That is NOT a casual perusal paging through
> the manual.
> That is sitting down in front of the radio with the manual open and
> identifying things as well as trying things out with a dummy load when
> it involves transmitting.
>
> 73,
> Don W3FPR
>
> On 6/29/2020 7:06 PM, Jim Brown wrote:
> >
> > Maybe study the manual? Worked fine for me with most ham gear I've
> > owned, including the K3 and companion products.
> >
> > 73, Jim K9YC
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-- 

--... ...--
Doug
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Re: [Elecraft] KX2 Drift During Field Day

[Fred Jensen]

Was it in the sun?

73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 6/29/2020 3:35 PM, Ian Kahn, NV4C wrote:

All,

I have KX2 s/n 2862. I noticed while operating Field Day that, about 
every 15 minutes, it would drift down 1 Hz. Has anyone else ever seen 
this in their KX2? I will admit it is possible this was just the 
effect of RF getting back into the rig, but at 10W, I'm not really 
sure where enough would come from to cause an issue.


Thanks and 73,

Ian, NV4C


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Re: [Elecraft] K4 Books

[Fred Jensen]

I found that the value in Fred's book was due to approach.  The K3 
manual is good ... very good ... and like most all user manuals, takes a 
"control approach" -- "The SHIFT and WIDTH controls adjust the center 
frequency and the width of the DSP filtering."  Fred's book explains 
what the DSP filtering is, the effects the controls have on it, and how 
it affects operation of the radio.


I'm not suggesting the "control approach" is wrong or bad, user manuals 
need to explain what each control does.  It's just a different approach 
to the subject.  I find both very useful.


From what little I know about the K4, I can't imagine that either a K3 
manual or Fred's K3 book would be of much value for a new K4 owner.


73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 6/29/2020 4:20 PM, Don Wilhelm wrote:

Tongue planted firmly in cheek --
What? Study the manual?  We are hams and can just push buttons and 
turn knobs and see what happens!


Seriously, I think some hams really do it that way.

How much more pleasure would they get out of their gear if they took 
the time to study the manual.  That is NOT a casual perusal paging 
through the manual.
That is sitting down in front of the radio with the manual open and 
identifying things as well as trying things out with a dummy load when 
it involves transmitting.


73,
Don W3FPR

On 6/29/2020 7:06 PM, Jim Brown wrote:


Maybe study the manual? Worked fine for me with most ham gear I've 
owned, including the K3 and companion products.


73, Jim K9YC

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Re: [Elecraft] K4 Books

[Don Wilhelm]

Tongue planted firmly in cheek --
What? Study the manual?  We are hams and can just push buttons and turn 
knobs and see what happens!


Seriously, I think some hams really do it that way.

How much more pleasure would they get out of their gear if they took the 
time to study the manual.  That is NOT a casual perusal paging through 
the manual.
That is sitting down in front of the radio with the manual open and 
identifying things as well as trying things out with a dummy load when 
it involves transmitting.


73,
Don W3FPR

On 6/29/2020 7:06 PM, Jim Brown wrote:


Maybe study the manual? Worked fine for me with most ham gear I've 
owned, including the K3 and companion products.


73, Jim K9YC

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Re: [Elecraft] K4 Books

[Jim Brown]

On 6/29/2020 3:57 PM, Matt Maguire wrote:

I would suggest that the architecture of the K4 is a significant departure
from the K3 series, and I would think that the books treating the K3 would
be of limited usefulness in understanding how to get the most out of the K4.


Maybe study the manual? Worked fine for me with most ham gear I've 
owned, including the K3 and companion products.


73, Jim K9YC
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Re: [Elecraft] K4 Books

[Matt Maguire]

I would suggest that the architecture of the K4 is a significant departure
from the K3 series, and I would think that the books treating the K3 would
be of limited usefulness in understanding how to get the most out of the K4.

73, Matt VK2RQ

On Tue, 30 Jun 2020 at 08:42, Ian Kahn, NV4C  wrote:

> All,
>
> I have a question that is probably best answered by Eric, Wayne, or one
> of the K4 testers. Since Fred Cady, KE7X (sk), is no longer with us to
> write a K4 book, are the UI and firmware close enough to that of the
> K3/K3S that we can use those books to learn it? Or, is Elecraft working
> with another author (hopefully of Fred's skill and stature, but that
> would be very hard to find) to write a supplemental K4 book? Or, are we
> all just out of look in that department?
>
> Thanks and 73,
>
> Ian, NV4C
>
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[Elecraft] K4 Books

[Ian Kahn, NV4C]

All,

I have a question that is probably best answered by Eric, Wayne, or one 
of the K4 testers. Since Fred Cady, KE7X (sk), is no longer with us to 
write a K4 book, are the UI and firmware close enough to that of the 
K3/K3S that we can use those books to learn it? Or, is Elecraft working 
with another author (hopefully of Fred's skill and stature, but that 
would be very hard to find) to write a supplemental K4 book? Or, are we 
all just out of look in that department?


Thanks and 73,

Ian, NV4C

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[Elecraft] KX2 Drift During Field Day

[Ian Kahn, NV4C]

All,

I have KX2 s/n 2862. I noticed while operating Field Day that, about 
every 15 minutes, it would drift down 1 Hz. Has anyone else ever seen 
this in their KX2? I will admit it is possible this was just the effect 
of RF getting back into the rig, but at 10W, I'm not really sure where 
enough would come from to cause an issue.


Thanks and 73,

Ian, NV4C

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Re: [Elecraft] Diversity receive versus QRM eliminators

[gt-i]

Andy,
mni tnx - good ideas! Will rewire my QRM box to the K3 RXIn out to avoid 
the extra PTT-relay clicks imposed by the QRM-box. It is the Wimo-QRM 
Eliminator. Not as Hi -end as the NCC-1 but a start.
Just looked-up the DXE  - now the NCC-2 is out and it now also has the 
same extra PTT switching as my cheap box! Why is this required, as I 
just learned the K3 can handle this smoothly?


tnx 73 Gernot DF5RF


Am 29.06.2020 um 22:51 schrieb hb9...@hispeed.ch:

Hi All,

I use in my K3S the RX in and RX out (RCA plugs) on the backside for
inserting the denoised signal  from my DXE NCC-1 Phasing Box output plug.
This box has two channels, were one can do e.g. up to -180deg phase
reversal. CH A and B signals are finally send to an internal power combiner
and to K3S RX in.

My have 2 selectable TX/RX antennas, 2x36m tuned doublet 160 to 6m @ 24m
center and a Steppir DB18E @ 18m.
RX signal come out safely from K3S RX (out) going to CH A NCC-1.
My QRM local noise pick-up ant is a 1m diameter ALA 1530 electronic mag.
loop (predominantly picking up local noise, no DX , horizontally mounted in
the attics, about -60dB decoupled from TX antennas)
This signal goes into CH B of NCC-1
By carefully equalizing/adjusting the amplitudes CH1 /CH2 NCC-1 I then try
do "Anti Phase". This will mostly reduce the local noise on the used main
antenna.

The limitation is you can only effectively  focus (phase) on one single
local QRM source. The unit NCC-1 is good up to around 17m Band. It is hard
to get more than 20dB S/N (about 2.5 S-Units) improvement.

In some local noise cases, not being a point source (Line source : PLC ,
VDSL etc. ) I am more successful using a LISN ( EMC , Line/Mains 50 Ohm
stabilization, decoupling network, 230V, 50 Hz) to safely replace the signal
from the mag. loop.
This procedure picks up the conducted noise on the mains in the house/flat
more in an integral way. This does not act as a "point source"

Experiments with predominantly E-field ( small/short dipole antennas) for
local noise pick up are ongoing.

73  Andy
HB9CVQ, DK2VQ, AK4IG
https://www.qrz.com/db/HB9CVQ


-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of donov...@starpower.net
Sent: Montag, 29. Juni 2020 19:51
To: Elecraft Reflector 
Subject: Re: [Elecraft] Diversity receive versus QRM eliminators

Diversity is not helpful as a QRM eliminator.


Antennas with steerable nulls can be helpful, small loop antennas have very
deep nulls but also require a high gain, low noise figure preamp and very
careful attention to common mode rejection during installation


73
Frank
W3LPL

- Original Message -

From: g...@gmx.net
To: "Elecraft Reflector" 
Sent: Monday, June 29, 2020 5:18:30 PM
Subject: [Elecraft] Diversity receive versus QRM eliminators

Hello all,
In a recent rush to eliminate urban noise I bought an QRM eliminator.
The working principle is to null out signals by shifting the phases of two
antennas (one main/tx and one rx). I can see the effect sometimes, but it is
not the holy grail for all types of QRM. I still don't get rid of the
PSU/LED/plasmaish noise here, sometimes the S/N is a bit better but maybe
thats my inner impression to justify buying this thing.
Now, I do wonder how this differs from diversity receive, effectively versus
local QRM.
Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal.

Any thoughts or hints ?
tnx 73 Gernot DF5RF


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Re: [Elecraft] Diversity receive versus QRM eliminators

[Martin Sole]

QRM eliminators can work surprisingy well at times and appear next to 
useles at others. It's rarely the unit, rather the situation. All of 
these similar units, of which the MFJ noise cancelling signal enhancer 
is but one operate by combining two essentially identical signals, the 
unwanted noise. With the phase of one 180 degree from the other and the 
amplitude matched total cancellation should occur, and it will, almost 
certainly.


The difficulties are two fold. First is that whilst phase adjustment can 
be made over a reasonable range the amplitudes must be the same. That's 
not so easy and the noise antenna often needs to hear a lot more of the 
noise signal than you might think necessary. The second problem is that 
these units can only eliminate one noise source. If you are surrounded 
by plasma and switch mode devices removing one just leaves a bunch more. 
The problem here, other than amplitude matching is that all of the 
arriving noise signals from different sources have a different phase 
relationship between your main and noise antenna. So adjusting for one 
noise signal to have 180 degree relationship between main and noise 
antenna will make every other signal have a different phase 
relationship, the signals come from different directions and different 
distances so reach the two antennas at different times, and hence 
different phases. Cancelling one doesn't do much for the other. If you 
have one noise source coming from one direction and you can collect 
enough of it then the so-called QRM eliminators work rather well, until 
something shifts and the phase changes and your tweaking again.


Of course once Wayne gets done with all the K4 trickery he will have 
time to develop the K-null that will eliminate all unwanted noise from 
all sources on all frequencies at all times at the push of a button. 
Join the queue :-)


Martin, HS0ZED



On 30/6/63 00:18, g...@gmx.net wrote:

Hello all,
In a recent rush to eliminate urban noise I bought an QRM eliminator.
The working principle is to null out signals by shifting the phases of
two antennas (one main/tx and one rx). I can see the effect sometimes,
but it is not the holy grail for all types of QRM. I still don't get rid
of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better
but maybe thats my inner impression to justify buying this thing.
Now, I do wonder how this differs from diversity receive, effectively
versus local QRM.
Note I have a 10m vertical as the 2nd ant, while the main ant is 
horizontal.

Any thoughts or hints ?
tnx 73 Gernot DF5RF


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Re: [Elecraft] Diversity receive versus QRM eliminators

[gt-i]

Good hint - tnx Frank.
Will try a mini whip or small loop.
73 Gernot DF5RF

Am 29.06.2020 um 19:47 schrieb donov...@starpower.net:

Hi Alan,


The MFJ works very well as a noise eliminator only if the noise antenna
is very close to the noise source, so that the noise is much stronger than
the desired signals. If the noise antenna is receiving about the same
signals as the main antenna the noise elimination function cannot work...


73
Frank
W3LPL

- Original Message -

From: "Alan - G4GNX" 
To: "Elecraft Reflector" 
Sent: Monday, June 29, 2020 5:43:24 PM
Subject: Re: [Elecraft] Diversity receive versus QRM eliminators

Hi Gernot.

I use an LZ1AQ double mag loop (rotateable) to null out as much hash as
possible. This feeds the RX Ant In input on the K3S. I also have an MFJ
Noise eliminator which is also inline, using the LZ1AQ as the main (RX)
antenna and I've tried a couple of antennas (including my HF vertical)
as the 'noise' antenna and I don't find any noise suppression by phase
elimination with the MFJ. I've yet to try a mini-whip antenna as the
'noise' antenna. I actually wonder if the MFJ unit is faulty, as I've
heard that other people have at least noticed a small difference when
using it. Once/if I get the MFJ untit to work, I may then buy one of the
more expensive noise eliminators.

73,

Alan. G4GNX


-- Original Message --
From: g...@gmx.net
To: "Elecraft Reflector" 
Sent: 29/06/2020 18:18:30
Subject: [Elecraft] Diversity receive versus QRM eliminators


Hello all,
In a recent rush to eliminate urban noise I bought an QRM eliminator.
The working principle is to null out signals by shifting the phases of
two antennas (one main/tx and one rx). I can see the effect sometimes,
but it is not the holy grail for all types of QRM. I still don't get rid
of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better
but maybe thats my inner impression to justify buying this thing.
Now, I do wonder how this differs from diversity receive, effectively
versus local QRM.
Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal.
Any thoughts or hints ?
tnx 73 Gernot DF5RF


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Re: [Elecraft] Diversity receive versus QRM eliminators

[hb9cvq]

Hi All,

I use in my K3S the RX in and RX out (RCA plugs) on the backside for
inserting the denoised signal  from my DXE NCC-1 Phasing Box output plug.
This box has two channels, were one can do e.g. up to -180deg phase
reversal. CH A and B signals are finally send to an internal power combiner
and to K3S RX in.

My have 2 selectable TX/RX antennas, 2x36m tuned doublet 160 to 6m @ 24m
center and a Steppir DB18E @ 18m.
RX signal come out safely from K3S RX (out) going to CH A NCC-1.
My QRM local noise pick-up ant is a 1m diameter ALA 1530 electronic mag.
loop (predominantly picking up local noise, no DX , horizontally mounted in
the attics, about -60dB decoupled from TX antennas)  
This signal goes into CH B of NCC-1
By carefully equalizing/adjusting the amplitudes CH1 /CH2 NCC-1 I then try
do "Anti Phase". This will mostly reduce the local noise on the used main
antenna.

The limitation is you can only effectively  focus (phase) on one single
local QRM source. The unit NCC-1 is good up to around 17m Band. It is hard
to get more than 20dB S/N (about 2.5 S-Units) improvement.

In some local noise cases, not being a point source (Line source : PLC ,
VDSL etc. ) I am more successful using a LISN ( EMC , Line/Mains 50 Ohm
stabilization, decoupling network, 230V, 50 Hz) to safely replace the signal
from the mag. loop.
This procedure picks up the conducted noise on the mains in the house/flat
more in an integral way. This does not act as a "point source"

Experiments with predominantly E-field ( small/short dipole antennas) for
local noise pick up are ongoing.

73  Andy
HB9CVQ, DK2VQ, AK4IG
https://www.qrz.com/db/HB9CVQ


-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of donov...@starpower.net
Sent: Montag, 29. Juni 2020 19:51
To: Elecraft Reflector 
Subject: Re: [Elecraft] Diversity receive versus QRM eliminators

Diversity is not helpful as a QRM eliminator. 


Antennas with steerable nulls can be helpful, small loop antennas have very
deep nulls but also require a high gain, low noise figure preamp and very
careful attention to common mode rejection during installation 


73
Frank
W3LPL 

- Original Message -

From: g...@gmx.net
To: "Elecraft Reflector" 
Sent: Monday, June 29, 2020 5:18:30 PM
Subject: [Elecraft] Diversity receive versus QRM eliminators 

Hello all,
In a recent rush to eliminate urban noise I bought an QRM eliminator. 
The working principle is to null out signals by shifting the phases of two
antennas (one main/tx and one rx). I can see the effect sometimes, but it is
not the holy grail for all types of QRM. I still don't get rid of the
PSU/LED/plasmaish noise here, sometimes the S/N is a bit better but maybe
thats my inner impression to justify buying this thing. 
Now, I do wonder how this differs from diversity receive, effectively versus
local QRM. 
Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal.

Any thoughts or hints ? 
tnx 73 Gernot DF5RF 


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Re: [Elecraft] SSTV & K3/K3S?

[Don Wilhelm]

Dave,

As far as I know that is 'just another digital mode'.

Yes, you would use DATA mode - specifically DATA A.  It sets the 
compression off and equalization flat automatically, plus it will not 
alter your SSB settings.


For information on how to set the audio levels, go to the article on my 
webpage www.w3fpr.com.


73,
Don W3FPR

On 6/29/2020 3:54 PM, David F. Reed wrote:
I am thinking of trying SSTV and have a K3 that is almost a K3S, so it 
has the USB & sound card built it.


I am looking for any setup info that might help; I am running MMSSTV.

I assume it would use DATA mode; is that correct?

Any other info like power to limit it to, setting ALC, (I assume 
compression off)


Obviously, I don't know much and would like to get running with minimal 
discomfort or displeasure to those I share the bands with.


Thanks for your help & 73 de Dave, W5SV

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[Elecraft] SSTV & K3/K3S?

[David F. Reed]

I am thinking of trying SSTV and have a K3 that is almost a K3S, so it 
has the USB & sound card built it.


I am looking for any setup info that might help; I am running MMSSTV.

I assume it would use DATA mode; is that correct?

Any other info like power to limit it to, setting ALC, (I assume 
compression off)


Obviously, I don't know much and would like to get running with minimal 
discomfort or displeasure to those I share the bands with.


Thanks for your help & 73 de Dave, W5SV

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Re: [Elecraft] Diversity receive versus QRM eliminators

[Hank via Elecraft]

Using something like the MFJ-1026 works well for me, BUT the 2 receceiving 
antennas must be similar to work well in my experience - i.e. 2 dipoles or 2 
verticals with similar gain characteristics to get the most out of the little 
black box.

Hank
K4HYJ


- Original Message -
From: g...@gmx.net
Date: 06/29/20 13:19
To: Elecraft Reflector (elecraft@mailman.qth.net)
Subject: [Elecraft] Diversity receive versus QRM eliminators

Hello all,
In a recent rush to eliminate urban noise I bought an QRM eliminator.
The working principle is to null out signals by shifting the phases of
two antennas (one main/tx and one rx). I can see the effect sometimes,
but it is not the holy grail for all types of QRM. I still don't get rid
of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better
but maybe thats my inner impression to justify buying this thing.
Now, I do wonder how this differs from diversity receive, effectively
versus local QRM.
Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal.
Any thoughts or hints ?
tnx 73 Gernot DF5RF


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[Elecraft] FS: K3/0 mini F + RRC-1258 MkII

[HIROKI KATO via Elecraft]

Comes with mic, ps, cables. Works perfectly. I have been using this combo to 
access and operate the Remote Ham Radio’s network of QRO stations. $600 for all 
plus shipping.
Please contact me directly. I’m OK on QRZ.com .

Hiroki AH6CY
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Re: [Elecraft] Diversity receive versus QRM eliminators

[Tommy]

 I have the MFJ 1026, with the built in whip and it eliminated a local 
broadcast station from my overloaded Kenwood 450S. I use a Myantenna 
endfed for the Kenwood.


73 de Tom KB2SMS


On 6/29/20 1:47 PM, donov...@starpower.net wrote:

Hi Alan,


The MFJ works very well as a noise eliminator only if the noise antenna
is very close to the noise source, so that the noise is much stronger than
the desired signals. If the noise antenna is receiving about the same
signals as the main antenna the noise elimination function cannot work...


73
Frank
W3LPL

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Re: [Elecraft] Diversity receive versus QRM eliminators

[donovanf]

Diversity is not helpful as a QRM eliminator. 


Antennas with steerable nulls can be helpful, small loop antennas have 
very deep nulls but also require a high gain, low noise figure preamp 
and very careful attention to common mode rejection during installation 


73 
Frank 
W3LPL 

- Original Message -

From: g...@gmx.net 
To: "Elecraft Reflector"  
Sent: Monday, June 29, 2020 5:18:30 PM 
Subject: [Elecraft] Diversity receive versus QRM eliminators 

Hello all, 
In a recent rush to eliminate urban noise I bought an QRM eliminator. 
The working principle is to null out signals by shifting the phases of 
two antennas (one main/tx and one rx). I can see the effect sometimes, 
but it is not the holy grail for all types of QRM. I still don't get rid 
of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better 
but maybe thats my inner impression to justify buying this thing. 
Now, I do wonder how this differs from diversity receive, effectively 
versus local QRM. 
Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal. 
Any thoughts or hints ? 
tnx 73 Gernot DF5RF 


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Re: [Elecraft] Diversity receive versus QRM eliminators

[donovanf]

Hi Alan, 


The MFJ works very well as a noise eliminator only if the noise antenna 
is very close to the noise source, so that the noise is much stronger than 
the desired signals. If the noise antenna is receiving about the same 
signals as the main antenna the noise elimination function cannot work... 


73 
Frank 
W3LPL 

- Original Message -

From: "Alan - G4GNX"  
To: "Elecraft Reflector"  
Sent: Monday, June 29, 2020 5:43:24 PM 
Subject: Re: [Elecraft] Diversity receive versus QRM eliminators 

Hi Gernot. 

I use an LZ1AQ double mag loop (rotateable) to null out as much hash as 
possible. This feeds the RX Ant In input on the K3S. I also have an MFJ 
Noise eliminator which is also inline, using the LZ1AQ as the main (RX) 
antenna and I've tried a couple of antennas (including my HF vertical) 
as the 'noise' antenna and I don't find any noise suppression by phase 
elimination with the MFJ. I've yet to try a mini-whip antenna as the 
'noise' antenna. I actually wonder if the MFJ unit is faulty, as I've 
heard that other people have at least noticed a small difference when 
using it. Once/if I get the MFJ untit to work, I may then buy one of the 
more expensive noise eliminators. 

73, 

Alan. G4GNX 


-- Original Message -- 
From: g...@gmx.net 
To: "Elecraft Reflector"  
Sent: 29/06/2020 18:18:30 
Subject: [Elecraft] Diversity receive versus QRM eliminators 

>Hello all, 
>In a recent rush to eliminate urban noise I bought an QRM eliminator. 
>The working principle is to null out signals by shifting the phases of 
>two antennas (one main/tx and one rx). I can see the effect sometimes, 
>but it is not the holy grail for all types of QRM. I still don't get rid 
>of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better 
>but maybe thats my inner impression to justify buying this thing. 
>Now, I do wonder how this differs from diversity receive, effectively 
>versus local QRM. 
>Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal. 
>Any thoughts or hints ? 
>tnx 73 Gernot DF5RF 
> 

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Re: [Elecraft] Diversity receive versus QRM eliminators

[Alan - G4GNX]

Hi Gernot.

I use an LZ1AQ double mag loop (rotateable) to null out as much hash as 
possible. This feeds the RX Ant In input on the K3S. I also have an MFJ 
Noise eliminator which is also inline, using the LZ1AQ as the main (RX) 
antenna and I've tried a couple of antennas (including my HF vertical) 
as the 'noise' antenna and I don't find any noise suppression by phase 
elimination with the MFJ. I've yet to try a mini-whip antenna as the 
'noise' antenna. I actually wonder if the MFJ unit is faulty, as I've 
heard that other people have at least noticed a small difference when 
using it. Once/if I get the MFJ untit to work, I may then buy one of the 
more expensive noise eliminators.


73,

Alan. G4GNX


-- Original Message --
From: g...@gmx.net
To: "Elecraft Reflector" 
Sent: 29/06/2020 18:18:30
Subject: [Elecraft] Diversity receive versus QRM eliminators


Hello all,
In a recent rush to eliminate urban noise I bought an QRM eliminator.
The working principle is to null out signals by shifting the phases of
two antennas (one main/tx and one rx). I can see the effect sometimes,
but it is not the holy grail for all types of QRM. I still don't get rid
of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better
but maybe thats my inner impression to justify buying this thing.
Now, I do wonder how this differs from diversity receive, effectively
versus local QRM.
Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal.
Any thoughts or hints ?
tnx 73 Gernot DF5RF



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[Elecraft] Diversity receive versus QRM eliminators

[gt-i]

Hello all,
In a recent rush to eliminate urban noise I bought an QRM eliminator.
The working principle is to null out signals by shifting the phases of
two antennas (one main/tx and one rx). I can see the effect sometimes,
but it is not the holy grail for all types of QRM. I still don't get rid
of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better
but maybe thats my inner impression to justify buying this thing.
Now, I do wonder how this differs from diversity receive, effectively
versus local QRM.
Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal.
Any thoughts or hints ?
tnx 73 Gernot DF5RF


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Re: [Elecraft] K2 K2/100 post FD review

[Don Wilhelm]

Mike,

It is not reasonable to expect a normal wattmeter to have greater than a 
10% accuracy.
Consider that the spec for a Bird wattmeter is only 5% right after 
calibration.
Digital wattmeters can be much more accurate, such as the LP-100 from 
Telepostinc, but they are calibrated to NIST traceable standards.


73,
Don W3FPR

On 6/29/2020 8:50 AM, Mike Kopacki wrote:

Okay. I will go back to your first reply and run through the items you 
suggested.

Does the fact that on 40 and 80 meters, when I set the requested power to 100w, 
I actually see a little more - like 103w - but the power drops off on other 
bands - is that a clue to anything?

Thanks,
Mike NJ2OM


On Jun 28, 2020, at 10:50 PM, Don Wilhelm  wrote:

Mike,

No, the KPA100 wattmeter will display the actual power being produced if it is 
well calibrated.
That is not necessarily the same as the requested power, although with a 
properly working KPA100 and a calibrated KPA100 wattmeter, the reading should 
be the same.

73,
Don W3FPR


On 6/28/2020 9:41 PM, Mike Kopacki wrote:
I can run through some of the items you suggest. But I don’t have an external 
wattmeter that can measure 100 watts. I do have a QRP wattmeter.

I will start tomorrow to try and work through the question.

But to be completely accurate...you are saying that the KPA100 wattmeter (which 
is what I see when pressing TUNE and DISPLAY together), should read the same as 
the REQUESTED power (which is what the power knob sets)?

Thanks,
Mike NJ2OM


On Jun 28, 2020, at 8:58 PM, Eric Norris  wrote:


Congratulations, Mike!  Please let us ALL know how it goes, as we of the K2 
clan learn something with every post.

73 Eric WD6DBM


On Sun, Jun 28, 2020, 2:12 PM Mike Kopacki mailto:mikekopa...@gmail.com>> wrote:

Well, that gives me something to do!  I’ll let you know how it goes.

Thanks,
Mike NJ2OM

> On Jun 28, 2020, at 4:41 PM, Don Wilhelm
mailto:donw...@embarqmail.com>> wrote:
>
> Mike,
>
> Congratulations on finishing the K2/100.
>
> On the power output variation, that is not normal.
> First check the voltage delivered to the K2 while in transmit.
> You should do that by tapping DISPLAY and scrolling to the
voltage display.  Your power source should provide at least 13.8
volts, but higher (up to 15 volts) is better.  If the voltage
shown by the K2 display during transmit is less than 12.6, make
certain all power cable connections are tight.
>
> If the power supply voltage is not the problem, then remove the
KPA100 from the base K2 and realign the bandpass filters.
Connect a dummy load to the base K2 BNC ANT jack.  After that,
check the maximum power from the base K2 - you should have at
least 10 watts on each band.  Record the power for each band.
>
> Using a dummy load takes away any question about your
antennas.  Always check into a dummy load - with an in-line
wattmeter if necessary.
>
> The other possibility is that you have a problem in the Low
Pass Filter in the KPA100.  To check for that, re-install the
KPA100, but power the base K2 from the coaxial power jack (no
power to the KPA100 - connect the dummy load to the SO2339 jack
on the KPA100.
> Again check the maximum power on each band from the base K2.
It should be no more than 5% less than you found with the base K2
only.
> If there is a substantial difference in power, then check the
KPA100 Low Pass Filter - particularly checking the number of
turns on the toroids.
>
> 73,
> Don W3FPR
>
>
>> On 6/28/2020 4:04 PM, NJMike wrote:
>> I did notice a variation on the power output on different bands:
>> 80m - 100w
>> 40m - 100w
>> 20m - 80w
>> 15m - 50w
>> 10m - 30w
>> SWR was never above 1.3-1.
>> Does that sound normal?
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Re: [Elecraft] KPA 500 Codan Envoy

[Bill Steffey NY9H]

maybe the real questions are will the KPA500 work withan ALE 
requirement


Band jumping and other cool stuff are essential for  ALE.

On 6/29/2020 11:52 AM, Mark Goldberg wrote:

I think as a Ham, you can use anything you want on the Ham bands. As a
manufacturer to sell it, it may need type acceptance for the service
it is intended to be used in.

Lots of people use aviation HF rigs on the Ham bands and you can use
an amp that works on 11M or with more than the allowable gain. A
manufacturer can't sell that for use in the Ham bands, but an
individual Ham can use anything as long as it is operated within the
regulations. I know a friend that has a huge amplifier capable of
maybe 10kW. He got a visit from the FCC (long ago, don't think they
care now). He showed them how it was correctly operated within the
regs and how he had the ability to measure it and assure it was. The
FCC guy wished him a good day.

Other services where the operator is not technical and has not passed
a technical exam require radios type accepted for that service as I
understand things.

73,

Mark
W7MLG

On Mon, Jun 29, 2020 at 7:47 AM Lyn Norstad  wrote:

Maybe Bob wants to use the Envoy 2 on the ham bands.  I'm not familiar with
the Codan line of military/business transceivers, but I see that model does
have transmit coverage from 1.6 to 30 MHz.

Perhaps the real question is whether it would be legal to use that rig on
the ham bands.  Since it can apparently cover the 160 - 10m bands without
modification, wouldn't it need to be type accepted?

73
Lyn, W0LEN


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mark Goldberg
Sent: Monday, June 29, 2020 9:09 AM
To: Bob Morgan
Cc: Elecraft Mailing List
Subject: Re: [Elecraft] KPA 500 Codan Envoy

That is not a Ham radio. Is it legal to use an amplifier type accepted
for Ham radio for other services?

73,

Mark
W7MLG


On Mon, Jun 29, 2020 at 6:49 AM Bob Morgan  wrote:

I would like to know if any in the group has used the KPA 500 with a Codan
Envoy 2. Any help would be much appreciated.
Bob Morgan
KJ4SV
865 207 9568



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Re: [Elecraft] K3S and Micro Keyer II issue

[Joe Subich, W4TV]

Are you following the instructions in the microHAM MK II Users Manual,
and the example configurations for MK II and your software?


When I go on digital there are times when the K3S appears to be
putting out RF but there is none.

What do you mean "appears to be putting out RF but there is none"?
What constitutes "apparent RF" - a Wattmeter indication, indicated
ALC of four bars, the TX LED?

73,

   ... Joe, W4TV


On 2020-06-29 10:16 AM, Peter Chamalian wrote:

I'm running the K3S and Micro Keyer II.  When I go on digital there are
times when the K3S appears to be putting out RF but there is none.  When I
switch to CW all's well.

  


If I turn the K3S, Microkeyer II off and shut down the device router
software then turn it all back on, I get RF out on digital.

  


Any ideas as to what's going on and what to do about it?

  

  


Pete, W1RM

w...@comcast.net

  


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Re: [Elecraft] KPA 500 Codan Envoy

[Charlie T]

" Perhaps the real question is whether it would be legal to use that rig on
the ham bands.  Since it can apparently cover the 160 - 10m bands without
modification, wouldn't it need to be type accepted?"


Only if the company's intention was to sell specifically to the HAM
community.

They of course, have the OK for their existing market.

Also, any licensed ham could use this radio if it was obtained on the "used"
market.
If this were NOT legal, we could therefore, not use commercial  an old BC
transmitter for legal limit AM.
Or, for that matter ANY radio not designated for HAM use.obviously, NOT
the case.

73, Charlie k3ICH




-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of Lyn Norstad
Sent: Monday, June 29, 2020 10:47 AM
To: 'Mark Goldberg' ; 'Bob Morgan'

Cc: 'Elecraft Mailing List' 
Subject: Re: [Elecraft] KPA 500 Codan Envoy

Maybe Bob wants to use the Envoy 2 on the ham bands.  I'm not familiar with
the Codan line of military/business transceivers, but I see that model does
have transmit coverage from 1.6 to 30 MHz.

Perhaps the real question is whether it would be legal to use that rig on
the ham bands.  Since it can apparently cover the 160 - 10m bands without
modification, wouldn't it need to be type accepted?

73
Lyn, W0LEN
 

 

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Re: [Elecraft] KPA 500 Codan Envoy

[Mark Goldberg]

I think as a Ham, you can use anything you want on the Ham bands. As a
manufacturer to sell it, it may need type acceptance for the service
it is intended to be used in.

Lots of people use aviation HF rigs on the Ham bands and you can use
an amp that works on 11M or with more than the allowable gain. A
manufacturer can't sell that for use in the Ham bands, but an
individual Ham can use anything as long as it is operated within the
regulations. I know a friend that has a huge amplifier capable of
maybe 10kW. He got a visit from the FCC (long ago, don't think they
care now). He showed them how it was correctly operated within the
regs and how he had the ability to measure it and assure it was. The
FCC guy wished him a good day.

Other services where the operator is not technical and has not passed
a technical exam require radios type accepted for that service as I
understand things.

73,

Mark
W7MLG

On Mon, Jun 29, 2020 at 7:47 AM Lyn Norstad  wrote:
>
> Maybe Bob wants to use the Envoy 2 on the ham bands.  I'm not familiar with
> the Codan line of military/business transceivers, but I see that model does
> have transmit coverage from 1.6 to 30 MHz.
>
> Perhaps the real question is whether it would be legal to use that rig on
> the ham bands.  Since it can apparently cover the 160 - 10m bands without
> modification, wouldn't it need to be type accepted?
>
> 73
> Lyn, W0LEN
>
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mark Goldberg
> Sent: Monday, June 29, 2020 9:09 AM
> To: Bob Morgan
> Cc: Elecraft Mailing List
> Subject: Re: [Elecraft] KPA 500 Codan Envoy
>
> That is not a Ham radio. Is it legal to use an amplifier type accepted
> for Ham radio for other services?
>
> 73,
>
> Mark
> W7MLG
>
>
> On Mon, Jun 29, 2020 at 6:49 AM Bob Morgan  wrote:
> >
> > I would like to know if any in the group has used the KPA 500 with a Codan
> > Envoy 2. Any help would be much appreciated.
> > Bob Morgan
> > KJ4SV
> > 865 207 9568
> >
> >
> >
> > --
> > Sent from: http://elecraft.365791.n2.nabble.com/
> > __
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Elecraft@mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to marklgoldb...@gmail.com
> __
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Re: [Elecraft] KPA 500 Codan Envoy

[Lyn Norstad]

Maybe Bob wants to use the Envoy 2 on the ham bands.  I'm not familiar with
the Codan line of military/business transceivers, but I see that model does
have transmit coverage from 1.6 to 30 MHz.

Perhaps the real question is whether it would be legal to use that rig on
the ham bands.  Since it can apparently cover the 160 - 10m bands without
modification, wouldn't it need to be type accepted?

73
Lyn, W0LEN
 

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mark Goldberg
Sent: Monday, June 29, 2020 9:09 AM
To: Bob Morgan
Cc: Elecraft Mailing List
Subject: Re: [Elecraft] KPA 500 Codan Envoy

That is not a Ham radio. Is it legal to use an amplifier type accepted
for Ham radio for other services?

73,

Mark
W7MLG


On Mon, Jun 29, 2020 at 6:49 AM Bob Morgan  wrote:
>
> I would like to know if any in the group has used the KPA 500 with a Codan
> Envoy 2. Any help would be much appreciated.
> Bob Morgan
> KJ4SV
> 865 207 9568
>
>
>
> --
> Sent from: http://elecraft.365791.n2.nabble.com/
> __
> Elecraft mailing list
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> Message delivered to marklgoldb...@gmail.com
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Re: [Elecraft] K3S and Micro Keyer II issue

[Don Wilhelm]

Pete,

Do you normally drive the audio to produce 4 bars solid with the 5th bar 
flashing?  That is often the problem with no or low RF output.


I do not have any answers on the Microkeyer II, someone else will have 
to respond to that.


73,
Don W3FPR


On 6/29/2020 10:16 AM, Peter Chamalian wrote:

I'm running the K3S and Micro Keyer II.  When I go on digital there are
times when the K3S appears to be putting out RF but there is none.  When I
switch to CW all's well.

If I turn the K3S, Microkeyer II off and shut down the device router
software then turn it all back on, I get RF out on digital.


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[Elecraft] K3S and Micro Keyer II issue

[Peter Chamalian]

I'm running the K3S and Micro Keyer II.  When I go on digital there are
times when the K3S appears to be putting out RF but there is none.  When I
switch to CW all's well.  

 

If I turn the K3S, Microkeyer II off and shut down the device router
software then turn it all back on, I get RF out on digital.

 

Any ideas as to what's going on and what to do about it?

 

 

Pete, W1RM

w...@comcast.net

 

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Re: [Elecraft] KPA 500 Codan Envoy

[Mark Goldberg]

That is not a Ham radio. Is it legal to use an amplifier type accepted
for Ham radio for other services?

73,

Mark
W7MLG


On Mon, Jun 29, 2020 at 6:49 AM Bob Morgan  wrote:
>
> I would like to know if any in the group has used the KPA 500 with a Codan
> Envoy 2. Any help would be much appreciated.
> Bob Morgan
> KJ4SV
> 865 207 9568
>
>
>
> --
> Sent from: http://elecraft.365791.n2.nabble.com/
> __
> Elecraft mailing list
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[Elecraft] KPA 500 Codan Envoy

[Bob Morgan]

I would like to know if any in the group has used the KPA 500 with a Codan
Envoy 2. Any help would be much appreciated.
Bob Morgan
KJ4SV
865 207 9568



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Re: [Elecraft] K2 K2/100 post FD review

[Mike Kopacki]

Okay. I will go back to your first reply and run through the items you 
suggested. 

Does the fact that on 40 and 80 meters, when I set the requested power to 100w, 
I actually see a little more - like 103w - but the power drops off on other 
bands - is that a clue to anything?

Thanks,
Mike NJ2OM 

> On Jun 28, 2020, at 10:50 PM, Don Wilhelm  wrote:
> 
> Mike,
> 
> No, the KPA100 wattmeter will display the actual power being produced if it 
> is well calibrated.
> That is not necessarily the same as the requested power, although with a 
> properly working KPA100 and a calibrated KPA100 wattmeter, the reading should 
> be the same.
> 
> 73,
> Don W3FPR
> 
>> On 6/28/2020 9:41 PM, Mike Kopacki wrote:
>> I can run through some of the items you suggest. But I don’t have an 
>> external wattmeter that can measure 100 watts. I do have a QRP wattmeter.
>> 
>> I will start tomorrow to try and work through the question.
>> 
>> But to be completely accurate...you are saying that the KPA100 wattmeter 
>> (which is what I see when pressing TUNE and DISPLAY together), should read 
>> the same as the REQUESTED power (which is what the power knob sets)?
>> 
>> Thanks,
>> Mike NJ2OM
>> 
 On Jun 28, 2020, at 8:58 PM, Eric Norris  wrote:
>>> 
>>> 
>>> Congratulations, Mike!  Please let us ALL know how it goes, as we of the K2 
>>> clan learn something with every post.
>>> 
>>> 73 Eric WD6DBM
>>> 
 On Sun, Jun 28, 2020, 2:12 PM Mike Kopacki >>> > wrote:
>>> 
>>>Well, that gives me something to do!  I’ll let you know how it goes.
>>> 
>>>Thanks,
>>>Mike NJ2OM
>>> 
>>>> On Jun 28, 2020, at 4:41 PM, Don Wilhelm
>>>mailto:donw...@embarqmail.com>> wrote:
>>>>
>>>> Mike,
>>>>
>>>> Congratulations on finishing the K2/100.
>>>>
>>>> On the power output variation, that is not normal.
>>>> First check the voltage delivered to the K2 while in transmit.
>>>> You should do that by tapping DISPLAY and scrolling to the
>>>voltage display.  Your power source should provide at least 13.8
>>>volts, but higher (up to 15 volts) is better.  If the voltage
>>>shown by the K2 display during transmit is less than 12.6, make
>>>certain all power cable connections are tight.
>>>>
>>>> If the power supply voltage is not the problem, then remove the
>>>KPA100 from the base K2 and realign the bandpass filters. 
>>>Connect a dummy load to the base K2 BNC ANT jack.  After that,
>>>check the maximum power from the base K2 - you should have at
>>>least 10 watts on each band.  Record the power for each band.
>>>>
>>>> Using a dummy load takes away any question about your
>>>antennas.  Always check into a dummy load - with an in-line
>>>wattmeter if necessary.
>>>>
>>>> The other possibility is that you have a problem in the Low
>>>Pass Filter in the KPA100.  To check for that, re-install the
>>>KPA100, but power the base K2 from the coaxial power jack (no
>>>power to the KPA100 - connect the dummy load to the SO2339 jack
>>>on the KPA100.
>>>> Again check the maximum power on each band from the base K2. 
>>>It should be no more than 5% less than you found with the base K2
>>>only.
>>>> If there is a substantial difference in power, then check the
>>>KPA100 Low Pass Filter - particularly checking the number of
>>>turns on the toroids.
>>>>
>>>> 73,
>>>> Don W3FPR
>>>>
>>>>
>>>>> On 6/28/2020 4:04 PM, NJMike wrote:
>>>>> I did notice a variation on the power output on different bands:
>>>>> 80m - 100w
>>>>> 40m - 100w
>>>>> 20m - 80w
>>>>> 15m - 50w
>>>>> 10m - 30w
>>>>> SWR was never above 1.3-1.
>>>>> Does that sound normal?
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>>> 
> 
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