Re: [Elecraft] Elecraft] Cammo KX2?

[Fred C. Jensen]

"AIRPLANE 'Black Box'" Orange?

K6DGW

Carter Craigie  wrote:
>YES! Great suggestions! Hi-Viz traffic cone orange!
>73,
>Carter, N3AO
>Blacksburg, VA
>
>On Tue, Sep 3, 2019 at 11:19 PM Steve Sergeant  wrote:
>
>> On 9/3/19 18:26 PM, Wayne Burdick wrote:
>> > do you think there's a market for a lighter KX2 color scheme? Maybe a
>> seafoam camo, or marzipan, or chrome with fractal filigree? I'm game. Let's
>> have a vote.
>>
>> When I bought my KX2, given the option I would have chosen a hi-viz
>> color (traffic-cone orange, safety-vest yellow/green) over the stock
>> color scheme.
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>-- 
>Carter, N3AO
>Blacksburg, VA
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Re: [Elecraft] Elecraft] Elecraft 20th Anniversary

[Fred C. Jensen]

I jest.

73,

Fred["Skip"] K6DGW

Wayne Burdick  wrote:
>Surely you jest :)
>
>Wayne (“just getting started”), N6KR
>
>
>http://www.elecraft.com
>
>> On Oct 14, 2018, at 2:26 PM, Fred Jensen  wrote:
>> 
>> Retirement? [:-)
>> 
>> 73,
>> 
>> Fred ["Skip"] K6DGW
>> Sparks NV DM09dn
>> Washoe County
>>> On 10/14/2018 12:03 PM, Ed G wrote:
>>> When you look at what they have accomplished in 20 years, it is 
>>> mind-boggling (but fun) to speculate on what the next 20 years might bring.
>>> --Ed, N3CW—
>>> 
>> 
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Re: [Elecraft] Elecraft] searching for post by Wayne n6kr about counterpoise

[Fred C. Jensen]

You've broken the code Dave, speak softly, let everyone else figure it out on 
their own. [:=)

Fred ["Skip"] K6DGW
Sparks NV

David Gilbert  wrote:
>
>
>I truly do not understand why this idea that "I can work anything I can 
>hear" hangs around as a gauge of anything meaningful.  It's a totally 
>meaningless reference.  Antennas are generally (as in almost always) 
>reciprocal between transmit and receive, so if you suck on transmit 
>you're likely to equally suck on receive.  So yeah ... most of us 
>probably can work anything we can hear but that doesn't mean anything 
>other than we haven't managed to screw up the physics of the world.
>
>73,
>Dave   AB7E
>
>
>
>On 9/8/2018 5:00 PM, Fred Jensen wrote:
>> During the runup to Cycle 19 [!1957 for me], it was said you could 
>> work anything you could hear on 10 with 20 watts to the window screen. 
>> Window screens were copper in those days.  I tried it out with my 
>> "28-28" [6J6-2E26] rockbound 10 m TX, and indeed, I seemed to be able 
>> to work everything I heard if I had a 40 m rock close enough.  Window 
>> screens are no longer copper so I don't think it would work today.  My 
>> "tuner" was the adjustable link coupling to the tank.  College 
>> starting 1957, military and SE Asia in 62, and Cycle 19 was in the 
>> rear view mirror when I got home at the end of 1967.  Oh that Cycle 25 
>> would repeat even half of 19!
>>
>> 73,
>>
>> Fred ["Skip"] K6DGW
>> Sparks NV DM09dn
>> Washoe County
>
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Re: [Elecraft] Elecraft] OT: Call location

[Fred C. Jensen]

And WOAI in San Antonio?

Skip K6DGW

WW3S  wrote:
>Actually, it was the other way around.with the exception of KQV and KDKA, 
>K calls were WEST of the Mississippi
>
>Sent from my iPad
>
>> On Jul 13, 2018, at 5:58 PM, Ken G Kopp  wrote:
>> 
>> Trivia:. Usta be that all "K" calls on the BC band were east of the
>> Mississippi River.
>> 
>> WFAA and WBAP in Ft Worth share a common studio and transmitter and split
>> hours of call use.
>> 
>> 73!
>> 
>> K0PP
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Re: [Elecraft] Elecraft] Fred's HHG vs Elecraft manuals de KE7X

[Fred C. Jensen]

Actually, it is five times seven equals 42, and 42 is the answer, not the 
question. Everyone has forgotten the question.

K6DGW

Kevin Cozens  wrote:
>On 2018-04-08 01:29 PM, kevinr wrote:
>> The Hitchhiker's Guide to the Galaxy Hexagonal Phase
>I'll have to look that up. I haven't heard of the version of HHGTTG.
>
>In addition to the other items mentions, there is also the question "What is 
>six times nine?".
>
>-- 
>Cheers!
>
>Kevin.
>
>http://www.ve3syb.ca/| "Nerds make the shiny things that
>https://www.patreon.html/KevinCozens | distract the mouth-breathers, and
>  | that's why we're powerful"
>Owner of Elecraft K2 #2172   |
>#include   | --Chris Hardwick
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Re: [Elecraft] Elecraft] Fred's HHG vs Elecraft manuals de KE7X

[Fred C. Jensen]

Not too shabby for a trilogy.

K6DGW

kevinr  wrote:
>The Hitchhiker's Guide to the Galaxy Hexagonal Phase is currently being 
>broadcast directly from the BBC.  Only one episode left to find out what 
>happens to Arthur Dent, Ford Prefect, Trillian, and her daughter 
>Random.  As for Zaphod?  Well, he's just this guy, you know.
>
>https://www.bbc.co.uk/programmes/b03v379k/episodes/guide
>
>The first radio show came out in the late 70s.  Now, xx years later, we 
>are on part 6.
>
>    73,
>
>    Kevin.  KD5ONS
>
>
>On 04/08/2018 07:09 AM, Cady, Fred wrote:
>> Rats, wish I had thought of that!  Maybe the next book . . .
>>
>>
>> 
>> From: kevino z 
>> Sent: Sunday, April 8, 2018 7:36 AM
>> To: Joan
>> Cc: Cady, Fred; elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] Fred's HHG vs Elecraft manuals de KE7X
>>
>> Yeah, but my copy didn’t have DON’T PANIC written in large, friendly 
>> letters
>> 73 DE KK4YEL
>>
>> No trees were killed in the sending of this message. However, a large number 
>> of electrons were terribly inconvenienced !
>>
>>> On Apr 8, 2018, at 02:27, Joan  wrote:
>>>
>>> Fred, I’ve just appended my copy of your book to read: The Hitchhikers’ 
>>> Guide to the Elecraft KX2.
>>>
>>> Thank you!
>>> ^_^ Joan
>>>
>>> FB es 73 =  KE7X de KX2CW  kn   . .
>>>
>>> Darmok and Jalad at Tanagra, said Piglet.
>>> Shaka, when the walls fell, said Pooh.
>>>
 On Apr 7, 2018, at 12:05, Cady, Fred  wrote:

 What makes the KE7X Elecraft book different than the Elecraft owner’s 
 manuals?
 Let’s start by saying the KE7X books do not have any information needed to 
 operate the radios that is not in the Elecraft Owner’s manuals.  Owner’s 
 manuals are by design succinct and concise descriptions of the controls 
 and features of the radio.  Elecraft manuals are very well done but I 
 found during my 40+ years as an EE prof that there are various ways that 
 people learn.  Some are visual learners and learn by seeing diagrams and 
 images, some can gain comprehension just be reading.  Others are more 
 hands-on learners, needing the “lab experience” to cement their 
 understanding of the concepts.  I’m a visual and hands-on learner.  When I 
 first got my K3 I had trouble understanding how the sub receiver worked 
 and what the different antenna switching options were.  So I drew it out 
 in a diagram and that made it much more clear to me.  If that helped me, 
 wouldn’t it help others?  So the idea of a K3 book was born.  (The 
 original title was to be “The Hitchhiker’s Guide to the K3” but I got 
 talked out of that!)
 The concept that takes these books beyond the Elecraft manuals is support 
 for the visual, reading, and doing learning styles.There are many, 
 many diagrams.   In the K3S book there are 131 diagrams, 16 on the sub 
 receiver alone.  There are expanded explanations (and diagrams) for all 
 radio operations and in-depth explanations of topics such as the various 
 controls for the receiver’s AGC.  And to top it all off, most topics have 
 a “lab exercise” that you can do sitting at your radio to make sure you 
 understand the concept.
 The printed versions of the books all have an index and, of course, the 
 pdf versions can be easily searched for what you are looking for.
 https://nam03.safelinks.protection.outlook.com/?url=www.ke7x.com=02%7C01%7C%7C9f89f0d9820449cbbfc208d59d19deae%7C84df9e7fe9f640afb435%7C1%7C0%7C636587656789761289=Vm0EbZlIY7l%2BlaYsff7q5hyZ%2BQ1UTYUiOAiME5fDIqk%3D=0
  has more information on all 12 current KE7X Elecraft books with tables of 
 contents and ordering information.


 73,

 Fred

 
 From: elecraft-boun...@mailman.qth.net  
 on behalf of Mike Markowski 
 Sent: Saturday, April 7, 2018 12:04 PM
 To: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] Fred's vs Elecraft manuals

 Fred and all,

 Can you describe in general how your books differ from Elecraft manuals?
 I haven't found Elecaft manuals to be lacking and very much like how
 direct and concise they are.  Your books are popular, making me wonder
 what you've added?

 Tnx es 73!
 Mike ab3ap

> On 04/07/2018 11:39 AM, Cady, Fred wrote:
> Hi Neil
>
> No never did a K2 book.
>
> Sorry the 15% discount at Lulu doesn't apply to pdf files.
>
> The K3S, KX3, and KX2 hard copy books are only available through 

Re: [Elecraft] K3 RS232 Question for Remoterig Users

[Fred C. Jensen]

No, a Y-cable won't work. I use an A- B switch [Amazon, about $20].  You will 
also need a USB cable to the PC if you're using a logging program with CAT 
control.

Fred K6DGW
Sparks NV

Ed G  wrote:
>Hello,
> I am exploring some different options for remote control of a home 
> station. After reviewing the Remoterig RRC-1258 manual, it appears that the 
> cabling to the home station K3 is minimal, basically just a null modem 
> connection from the K3 RS232 port to the Remoterig box.  To have a setup that 
> does not require constantly connecting and disconnecting the cable, can I use 
> a Y adapter, assuming that other external RS232 control/polling signals are 
> turned off?  The Remoterig box doesn’t have a power on/off switch, so it 
> might be powered up all the time, and I am wondering about potential 
> conflicts should I use a Y cable.
>--Ed—
>
> 
>
>
>
>---
>This email has been checked for viruses by Avast antivirus software.
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Re: [Elecraft] [OT] Duplexer/Diplexer

[Fred C. Jensen]

Used triplexers for years, HF, 2, 70 cm, one run to tower, worked great. I 
think mine were Comet. Just watch the SEE with higher power.

Fred K6DGW

George Pasek  wrote:
>2 Radios, 2 Antennas, 1 Coax.
>
>That pretty much says it all.  I currently have a KX3 and a 2-meter rig (but 
>I’ll probably be outfitting the KX3 with 2m’s in the future) and I use a 
>HamSticks for HF or a 1/4 wave GP for 2 meters.  Running another coax here is 
>not a option (apartment) so I have been swapping radios/antennas.  Now I’m 
>thinking of using two HF/VHF Duplexers (or Diplexer as they are also called) 
>to join/split the RF.  For example using two of the MFJ-4916S, one port is 
>1.6-56mHz and the other is 140-540mHz.  Hf power output is limited to the KX3 
>(12w?) and VHF is currently the IC-2300H at 65w.  I understand that there will 
>be insertion loss/isolation issues.  I have never pursued using splitters on a 
>coax feed before and tho two simple A/B switches (manual or remote) would work 
>better, I’d just like to keep things simple.
>
>From what I have been reading, the Diplexer route looks like it should work 
>fine given the above?
>
>tnx
>de George
>WD0AKZ
>dit – dit
>
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>This email has been checked for viruses by Avast antivirus software.
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Re: [Elecraft] Elecraft] OT - SFI going crazy - 127 - 10 should be open

[Fred C. Jensen]

SFI has been as high as 140 since the big flare, close to its max at the cycle 
24 peak.

Skip K6DGW

Gary Smith  wrote:
>I worked VK4CC on 10M with FT8 mode at 
>00:04 from Connecticut, earlier this 
>evening. Definitely open.
>
>73,
>
>Gary
>KA1J
>
>> 10M was open to VK-ZL-SoPac about 0240Z and shut down an hour later. 
>> 
>> -- Mike Flowers, K6MKF, NCDXC - "It's about DX!"
>> 
>> > On Sep 7, 2017, at 8:48 PM, Jim Miller 
>> > wrote:
>> > 
>> > Take a look at the SFI at 127.  It has been going up a bit and
>> > bounced to 103 a couple of days ago but is at 127 now so 10 meters
>> > should be open and 6 meters might even work.
>> > 
>> > 
>> > 
>> > 73, Jim KG0KP
>> > 
>> > __
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>
>
>
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Re: [Elecraft] Elecraft] Eclipse logistics and em-comm nets?

[Fred C. Jensen]

Econ 101 ... supply vs demand.  Capitalism at its finest.

Skip
K6DGW

Clay Autery  wrote:
>Criminal...  :-(
>
>__
>Clay Autery, KY5G
>
>On 8/17/2017 10:27 PM, Jim - N4ST wrote:
>> Yes, motel rooms normally going for $51/night are over $600.  A bargain at 
>> $1000 for two nights.
>>
>> _ 
>> N4ST
>>
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Re: [Elecraft] Elecraft] KX2 Firmware

[Fred C. Jensen]

I missed the FW release, I was busy sharpening my sword and degreasing my chain 
mail.

Fred K6DGW
Sparks NV

Chris Tate - N6WM  wrote:
>That's a busted exchange copy..  ;-).
>
>-Original Message-
>From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of 
>kev...@coho.net
>Sent: Tuesday, May 23, 2017 5:43 PM
>To: elecraft@mailman.qth.net
>Subject: Re: [Elecraft] KX2 Firmware
>
>I must be getting old.  I really don't remember what I was doing in the 11th 
>century.
>
>73,
>
> Kevin.  KD5ONS
>
>
>On 5/23/2017 5:38 PM, Tom Francis, W1TEF wrote:
>> Greetings,
>>
>> I was just looking at the KX2 firmware, Beta and 2.69 and discovered 
>> that they were built and released in the 11th Century!! Who knew?!?
>>
>> **MCU 2.69 / DSP 1.49, Final Release Feb 5, 1017**
>>
>> **MCU 2.75 / DSP 1.49, April 7, 1017
>>
>> **Best regards,
>>
>> Tom, W1TEF
>> Lexington, SC
>
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Re: [Elecraft] Elecraft] A little theory.

[Fred C. Jensen]

My K3 has one, it's around the Big Knob.

Fred K6DGW
Sparks NV DM09dn

David Pratt  wrote:
>Excuse my ignorance, Tim; maybe I am being naive, but could you explain
>to which Elecraft products you are referring? I do not know of any 'O'
>rings in any of my Elecraft transceivers.
>
>73 de David G4DMP
>
>In a recent message, "k...@juno.com"  writes
>>
>>A long time admirer. For me, his "O ring and a glass of ice water"
>>demonstrationwhich kicked the air out of the NASA gas bags during
>>theChallenger Disaster inquiry was most memorable. A remarkable man.
>>72, Tim Colbert  K3HX
>-- 
> + - - - - - - - - - - - - - - - - +
> | David M Pratt, Kippax, Leeds.   |
> | Website: http://www.g4dmp.co.uk |
> + - - - - - - - - - - - - - - - - +
>
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Re: [Elecraft] Elecraft] New to Elecraft - help with audio settings

[Fred C. Jensen]

If you're still having problems Rob, email me direct. I'm on a crummy keyboard 
rite now.  Fred K6DGW


j...@kk9a.com wrote:
>Follow the manual for setting gain and compression plus look at Heil's
>suggestions for the equalizer: 
>https://heilsound.com/heil-amateur-radio/support/dsp-settings/all-things-elecraft/
>
>John KK9A
>
>From: Rob Monsipapa
>Sun Apr 9 22:34:08 EDT 2017
>
>I just set up my K3, KPA500, KAT500 and P3.  Couldn't get any audio out
>until I changed the mic setting of the front mic connection to high output
>and no bias.  CMP settings is 11, MIC gain is 9 and power on the K3 is set
>at 28watts...  It's now driving the amp up to around 500watts but I get NO
>readings on the CMP and ALC meters, none.  So I feel like I am missing
>something.  I'm using the Heil PR781 mic and need to make some EQ
>settings.
>
>If anyone can offer some suggestions I'd appreciate it.
>
>Rob - AK7RM
>
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Re: [Elecraft] [OT] Question about power lines

[Fred C. Jensen]

It probably doesn't matter Al, the lines are likely in your antennas near field 
and thus coupled. Maybe they will enhance the radiation of some of your RF. [:-)

Fred K6DGW


Al Lorona  wrote:
>One leg of a horizontal antenna has to, unfortunately, run parallel to the 
>power lines at the back of a city lot. Will there be more pickup of electrical 
>noise if that leg has a current maximum, or a current minimum on it, along the 
>portion of the antenna closest to the power lines?
>
>You can e-mail me privately to keep traffic down.
>
>Thanks,
>
>
>Al  W6LX
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Re: [Elecraft] winkeyer

[Fred C. Jensen]

I use a WK3 w/USB to N1MM, VOX on, QSK on ... works great.

73,

Fred K6DGW
Sparks NV DM09dn


NOEL POULIN  wrote:
>Anybody in this group using K1EL winkeyer USB(wkusb-smt) with the K3 radio??
>I would appreciate comments.
>I am using a computer LPT CW INTERFACE  at the momentwith a K3S, and 
>want to switch to a keyer soon...
>Thanks
>Noel
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Re: [Elecraft] Elecraft] R: K3s vs K3's

[Fred C. Jensen]

In the Lao (and Thai) language, there are no plural forms.  It would be either 
"K3s" meaning one, or "n K3s" where n is the number of radios. English is as 
obscure as C.

73,

Fred K6DGW
Sparks NV

Mark via Elecraft  wrote:
>Re:   >> use the terms K3's or K3s'<<
>
>>Grammatically incorrect.  Use of the>
>>apostrophe indicates possessive<
>
>Well, not always.  Websters New World Dictionary (mine is a 1965 edition and 
>getting pretty used up) lists six uses for the apostrophe, with number six 
>being:
>
>"6)  in the forming the PLURAL of letters, numbers, etc.  Example:  He 
>pronounced his th's like s's.  She made her l's look like 7's."
>
>So, given that, more than one K3 would be K3's.
>
>Wayne requested that one K3s be just that, K3s.  Does that make more than one 
>K3s be K3s' or K3s's.  I think it would be K3s', but I can't find the rule 
>that says to drop the last s.  It is in this dictionary...somewhere.
>
>Mark
>KE6BB
>
> Original message From: "Joe Subich, W4TV"  
>Date: 10/14/16  8:20 AM  (GMT-08:00) To: elecraft@mailman.qth.net Subject: Re: 
>[Elecraft] R: K3s vs K3's 
>
> > use the terms K3's or K3s'
>
>Grammatically incorrect.  Use of the apostrophe indicates possessive as
>in "belonging to the K3 or K3s" - for example "the K3's VFO A knob".
>
>73,
>
>    ... Joe, W4TV
>
>On 10/14/2016 10:59 AM, Charlie T, K3ICH wrote:
>> Due to the odd way Elecraft chose to label the new K3s, I would request that
>> when referring to multiple radios, use the terms K3's or K3s' rather than
>> simply K3s which implies a single radio.
>>
>> 73, Charlie k3ICH
>>
>>
>>
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Re: [Elecraft] KX2

[Fred C. Jensen]

OK, my "80-10 EFHW", which is how it's marketed, is really an "EFHWO8OBWGOOBT"? 
 (End Fed On 80 But Works Great On Other Bands Too). :-)

73,

Fred K6DGW
TDY in SoCal on my Kindle

Rick Robinson  wrote:
>I don't want to come off as a "A-Hole" but the use of efhw for any end fed
>antenna is really getting out of hand. We as hams need to step up our game
>in regards to our communication skills of day to day speech. We, as
>hams,are regarded as communication specialists and this should go with our
>speech as well as our knowledge. A efhw is a single band, narrow frequency,
>antenna. It is a half wave of one frequency with regards to the length of
>the antenna with some minor adjustments for its mounting. An end fed
>antenna is just that, a random length of wire fed at one end of the wire. I
>know this may seem to some as being petty but it degrades the knowledge we
>have learned as amateurs. If this persists the ones joining the hobby may
>think that this is an accurate description and then spread this to others,
>as it seems it already has, and dumb down our status within part 97.1 (d)
>Expansion of the existing reservoir within the amateur radio service of
>trained operators, technicians, and electronics experts. My 2 cents.
>
>-- 
>Rick, W8ZT
>
>Sent from Gmail Mobile
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Re: [Elecraft] Elecraft] KX2

[Fred C. Jensen]

I use an EFHW on 80-10, no dedicated counterpoise, no coax length rqmts.  
However, NEC2 doesn't like a source at the open end of a wire so to model it, I 
have to put some counterpoise on the wire. Length not critical, 5-10 ft is fine.

73,

Fred K6DGW

David Gilbert  wrote:
>
>I'm confused why an EFHW should need a counterpoise.  If it needs a 
>counterpoise it isn't actually acting like an EFHW.  If it needs a 
>counterpoise that means there isn't enough choking impedance at the 
>feedpoint, and it means that the feedline is radiating with the 
>counterpoise acting as ... well, a counterpoise.
>
>Manufacturers state a minimum length feedline simply to have the 
>feedline losses help swamp out SWR variations along the line, and of 
>course to marginally lower the SWR.
>
>Dave
>AB7E
>
>
>On 7/14/2016 1:03 PM, Don Wilhelm wrote:
>> Andy,
>>
>> What happens if you connect to a dummy load?  Does the KX2 tune it 
>> properly?
>> If so, then you know the KX2 is operating into a 50 ohm load OK.
>>
>> Do you have an antenna analyzer?  If so, then connect it to the 
>> antenna feedline and look at the impedance - both real and reactive - 
>> as well as the SWR.
>> That will tell you whether the antenna is troublesome.
>>
>> You specifically said an EFHW - that should be a resonant antenna.  If 
>> instead you have a random length wire (not a halfwave), and what is 
>> the matching device?
>> Many EFHW antennas need a counterpoise to work - that is why many 
>> manufacturers state a *minimum* length feedline.
>>
>> If the problem is *not* the antenna, contact Elecraft support.
>>
>> 73,
>> Don W3FPR
>>
>> On 7/14/2016 2:40 PM, Andy Clift wrote:
>>> Just received my KX2, but unable to get it to tune an EFHW wire. I’ve 
>>> tried a home made one and then tried a SOTABEAMS MultiBander that 
>>> I’ve used successfully with an FT-857. I’ve checked the continuity in 
>>> the wire and also the continuity in the KX2 between the BNC connector 
>>> and where the wire connects inside the KX2 (as I removed this to fit 
>>> the end panels). Battery is at over 11v. Any ideas please?
>>>
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Re: [Elecraft] Elecraft] RFI on K3s

[Fred C. Jensen]

Home Depot is in Israel too?

Fred K6DGW

Vic Rosenthal  wrote:
>Get some no. 10 stranded wire at Home Depot (etc.), double it over, put one 
>end in a vise and the other in the chuck of your electric drill and twist 
>away. Not shielded, but much better than parallel wires. I suppose you could 
>strip some RG-8 if you really wanted to shield it.
>
>Vic 4X6GP
>
>> On 20 Jun 2016, at 22:54, DGB  wrote:
>> 
>> 
>> Jim ... where does one find #10 twisted pair? Is it shielded?
>> 
>> thanks 73 Dwight NS9I
>> 
>>> On 6/20/2016 12:59 PM, Jim Brown wrote:
 On Mon,6/20/2016 10:33 AM, James Walker wrote:
 Is it normal to register voltage as low as I’m seeing on my K-3?
>>> 
>>> What you're seeing sounds like IR drop in the DC cable. How long is the DC 
>>> cable between the K3 and the power supply? What wire gauge? Is there any 
>>> equipment (like distribution panel) in between?
>>> 
>>> This is a great application for a short length of #10 twisted pair between 
>>> the PSU and rig.
>>> 
>>> 73, Jim K9YC
>> 
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Re: [Elecraft] Elecraft] K3 extra xmit frequency

[Fred C. Jensen]

FWIW, I worked a station in NAQP SSB, and then tuning down, heard him weakly 
and distorted but understandable about 4 kHz down. He had complimented my audio 
and when I said "K3" he said "me too.

73,

FRED K6DGW
Sparks NV

Wayne Burdick  wrote:
>Bill,
>
>This is a very unusual problem. Please contact customer support.
>
>73,
>Wayne
>N6KR
>
>On Jan 27, 2016, at 11:25 PM, Bill Stravinsky via Elecraft 
> wrote:
>
>> A friend of mine (100 miles away) recently noticed a dual signal being 
>> transmitted from my K3…
>
>
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Re: [Elecraft] Elecraft] Audio/noise diversity/phasing question

[Fred C. Jensen]

I used Bose noise cancelling phones in the 90's while doing around 250K miles a 
year on United.  They cut the steady aircraft noise nicely, mainly the higher 
pitched part, not so good on the LF rumble.  It seemed the steady higher 
frequencies were responsible for the headaches.  On my radio, they were 
ineffective with IF atmospheric static, and almost ineffective against power 
line noise.

I'd guess that much of the LF rumble was conducted thru my body rather than 
through the air.

Full disclosure: My hearing was already severely compromised, the higher 
frequency steady noise was weakly audible to me without the phones and absent 
with them.  However, it apparently still gave me headaches on transcontinental 
flights without the phones.

Fred K6DGW
Sparks NV

phil anderson aldenmcduf...@sunflower.com wrote:
HI JERRY, 



You may be thinking of the Bose Noise Cancelling Headphones. These operate at 
audio and an extra microphone is added to each earbud to pick up background 
audio in your hamshack or workplace. I'm guessing that the signal from one of 
these added microphone earbuds is then inverted; and, in turn each earbud adds 
the signal from its extra microphone to the audio signal from the phone's 
audio output. In that way, the external noise is cancelled when listening to 
both phones. 





One way one might utilize this process in diversity mode using two radio 
receivers within one radio - like in a K3 or K3s - is to offset receiver B 
from receiver A, such that receiver B is only receiving noise. Then sum the 
inversion of that in an external audio circuit with the output of receiver A 
to receive just the CW signal generated by receiver A. This in effect would 
cancel the noise from each receiver similarly to that with the Bose. 





Right now I'm using the K3 in diversity mode by receiving RXB via the AUX 
input (with a Beverage antenna) and RXA via ANT1 port (with a SteppIR 
vertical) and letting the K3 process the audio in its native diversity mode. 
To this I'm also utilizing the APF feature. It's an easy guess that this beats 
out the scheme described above. However, if might simply be fun to try the 
adhoc method. 73, Uncle Phil, W0XI, Lawrence, KS. 


- Original Message -

From: ae...@carolinaheli.com 
To: Elecraft@mailman.qth.net 
Sent: Thursday, August 13, 2015 11:31:53 AM 
Subject: [Elecraft] Audio/noise diversity/phasing question 

I've read where a received signal is split into two signal paths, the noise 
is somehow shifted 180 degrees (not sure how without affecting the desired 
signal), the two signals are fed to your headset, one to each side, somehow 
our brains then perceive the signal to POP out of the noise. Does this apply 
to the K3/S ? I'm very interested in anything that effectively results in a 
higher signal to noise. 



Thanks in advance. 

Jerry Moore, Future K3S owner 5Sept2015 

AE4PB 

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Re: [Elecraft] CW reception with 3 peaks on PX3

[Fred C. Jensen]

Probably sidebands from stray modulation. Distance from carrier to one is the 
freq of the modulating signal. I've very occasionally heard what sounds like 
intentional MCW, you have to widen your filters to hear it but you can see it 
on a P(X)3.

Fred K6DGW
Sparks NV

Gerard Elijzen vk2...@icloud.com wrote:



I was in contact with a CW station recently and his signal had 3 peaks on my 
PX3.

Can anyone explain. The other station was using an ICOM 7410.

Submitted this also on the KX3 Yahoo forum and had 1 reply. Thanks for that.

Thought I might post it here in the hope to get an explanation. Have never 
seen this before and it does not happen on other CW stations.

Gerard VK2JNG





Gerard
vk2jng at iCloud dot com



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Re: [Elecraft] Elecraft] Does the K3S DSP support LMS noise reduction ?

[Fred C. Jensen]

What is LMS Noise Reduction? I retired when my brain became filled to capacity 
with acronyms. Any new ones just overflow to the drain. :-)

Fred K6DGW
Sparks NV

Lyle Johnson kk7p4...@gmail.com wrote:
Yes, identical to the K3.

73,

Lyle KK7P

 I don't see LMS listed. Does it support that?

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Re: [Elecraft] Elecraft] K3: 630m amplifiers

[Fred C. Jensen]

Umm ... JT65 is MFSK, 1 freq at a time, no different than FSK, just more than 
2, 1 at a time.  Should be constant envelope, my JT65 sure is on the scope as 
is my RTTY signal.  There may be some 2nd order effects, but Class C should 
basically work.

73,

Fred K6DGW
Sparks, NV

Don Wilhelm w3...@embarqmail.com wrote:
Tom,

Soundcard sourced digital modes are really SSB signals and need a linear 
amplifier.

73,
Don W3FPR

On 7/26/2015 8:25 PM, Tom Azlin W7SUA wrote:
 Hi Ed.

 I am more interested in a non-linear class C or higher amp for those 
 bands as was not thinking to run modes that need a linear amp. WSPR, a 
 WSJT mode, WSQ, and the like.

 73, tom w7sua
 Chino Valley AZ

 On 7/26/2015 1:23 PM, Edward R Cole wrote:
 With the recent expansion of use to 630m for the K3s and upgraded K3
 which only transmit at nom 1mw, a question arises:

 Is there interest in a linear amplifier taking 1mw drive to produce
 either 25w or 100w?

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Re: [Elecraft] Elecraft] KAT500 Feature Request

[Fred C. Jensen]

Sometime back, a FW update has the Tuner following as you tune.  You don't have 
to tx.  Put tuner into manual after training.

73,

Fred K6DGW
TDY Sparks NV

Tom Blahovici tom...@videotron.ca wrote:
Hi
I think this is more or less in place now. If you put the tuner in manual 
mode,  it will only tune if you press tune and then hold this setting. When 
you tune to a different location it automatically will load the existing tune 
settings. 
What I have done is a manual tune every 20 kHz or so and kept the tuner in 
manual. Thus it always locks  the settings. 
Tom
va2fsq.com

On Apr 3, 2015 9:51 PM, Dan Baker km...@km6cq.com wrote:

 I would find it very useful to have a Lock button on the tuner, let me 
 explain. 
 A Tap and Hold on the Tune button would lock the tuning solution in place. 
 Then another Tap and Hold or moving the VFO would unlock it. This would 
 be very effective at times. 

 Thank you for your consideration and happy Easter. 

 Dan, KM6CQ 
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Re: [Elecraft] Elecraft] KXPA100 Thermal Fault

[Fred C. Jensen]

Mine was a brushless DC fsn from an old computer.  Quiet running on 12V.  One 
anomally ... on 15 (only), with beam pointed over shack  1KW, transmitting 
slowed it down.  Any other direction was fine

73,
Fred K6DGW
TDY Huntington Beach CA

Don Wilhelm w3...@embarqmail.com wrote:
Salvage a 12 volt muffin fan from a defunct computer and put a resistor 
in series with it to slow it down.  Almost whisper quiet, but it can 
substantially increase the air flow over the heatsink and keep it cool.
Cost, almost nothing.  But put a shield over it to keep fingers out of 
the blades.

73,
Don W3FPR

On 7/22/2014 6:18 PM, Bob N3MNT wrote:
 This looks like a a relatively inexpensive solution to the temp controlled
 fan idea.  They seem to have a reputation for being quiet and reliable.
 http://sitesearch.outletpc.com/search?page=1query=Gelid+FN-TX12-15+Silent+++ON1266+1+++9.98++Warranty+%3D+30-Day+Warranty+Included+12+TC+120mm+3pin+1500RPM+++%28%2B0.00%29+Temp+Control+Case+FanI1.x=55I1.y=3




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Re: [Elecraft] Elecraft] KXPA100 Thermal Fault

[Fred C. Jensen]

When I was using my K2/100 on RTTY, I stuck a muffin fan over the hottest part 
of the heatsink with a little square of sticky back velcro.  Could run 100 
watts just fine.  Fan blew down.

73,
Fred K6DGW
TDY Huntington Beach CA

Bert via Elecraft elecraft@mailman.qth.net wrote:
Thanks to all who made suggestions. I will be trying one or two fans atop  
the heat sink and see how that works out in the next RTTY contest foray.
While looking into possibilities, I checked out the web site where I got my 
 add-on KX3 heat sink (https://proaudioeng.com/products/) and found they 
had  added a new product, a power supply specifically for the KX3. Specs 
look  promising. [I don't have a vested interest in the company, just pleased 
with the  heat sink.]
Again, this reflector is a great source for ideas about great  products!
73, Bert N4CW/K1IMI
 
 
In a message dated 7/20/2014 7:18:48 P.M. Eastern Daylight Time,  
n...@aol.com writes:

I used my KX3/KXPA100 in the NAQP RTTY contest this weekend. The KX3 with  
added-on heat sink worked very well; however, the KXPA100 repeatedly faulted 
 with HI TEMPERATURE indicated on the KX3 at full output after prolonged  
operating (lots of CQ'ing with short pause intervals). PA.X temp indicated at 
 failure was around 60C...as it should. Shack temperature was around 70 
degrees  F
Yes, I know all about digital modes and full power stressing amplifiers,  
etc. What I want to know is how to mitigate this interruption yet run full  
output. To that end, I have a couple ideas: what if I mounted the amp  
vertically so the heatsink fins drew cooler air through themselves via  
convection? Secondly, would a couple muffin fans mounted atop the cooling fins 
 do 
the job? 
The net of this is that I'd like to enjoy the full benefit of having a  
high-quality 100-Watt amplifier, regardless of mode or key-down time.
 
Bert N4CW/K1IMI

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Re: [Elecraft] K3/K2: cumulative HF xcvr review from eHam

[Fred C. Jensen]

From your perspective Wayne, i'd read them all too.  From my perspective as 
just a ham, I've pretty much given up on eHam reviews.  Like me trying to 
learn how to pilot a helicopter, they are all over the sky.  Plus, I don't 
know who they are, what they expected, whether or not that was realistic, or 
whether the actually knew what they were doing.

Merry Christmas to all

Fred K6DGW
TDY Sparks NV

PS: Never did learn to pilot the helicopter effectively 

Wayne Burdick n...@elecraft.com wrote:

Interesting stats, Doug. I expected the KX3 to be right up there near the top, 
too, but then I realized it has only 99 reviews. Just missed The Cutoff :)  

eHam is a highly approximate metric for radio quality. But I do read every 
review, since they're are often posted by customers who aren't subscribed to 
our reflector. Lots of valuable observations, ideas for improvement, etc.

Wayne
N6KR


On Dec 25, 2013, at 1:06 PM, Douglas Zwiebel doug...@gmail.com wrote:

 Hope this prints OK.
 
 While doodling around today, I thought to take a look at the eHam.net
 product reviews.
 
 Somewhat difficult to make a lot of sense from it, so I thought I'd import
 it into Excel.
 
 I've limited the list below to those rigs with 100 or more reviews.  The
 sort is by average rating, then # of reviews.
 
 Interesting stuff...and not too shabby for Elecraft K3 and K2.  KUDOS.
 I'm happy to report that at some point in my ham career, I've owned the
 first 3 listed.
 
 I may regret this, but if you'd like the entire excel file, drop me a
 line.  Then you can sort it any number of ways you like, for every single
 radio ever reviewed.
 
 This listing is as of Dec 25, 2013 around 2030z.
 
 de Doug KR2Q
 
 ReviewsAve ratingProduct
 2094.9 Elecraft K3
 1184.9 Kenwood TS-830S
 2894.8 Elecraft K2  K2/100





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Re: [Elecraft] RepetitiveK on 7.039.3 question

[Fred C. Jensen]

Actually, I believe it is one of several Russian military beacons, I've also 
heard G and C.  Most of the drift net beacons seem to be on 160 and ID with 
letters and numbers.

73,

Fred K6DGW
TDY Atascadero CA

Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com wrote:

I believe this is one of the Asian or Russian fishing buoys that 
frequently beacons near 7.040. They have popped up there for years.

73,

Eric
elecraft.com

On 4/3/2013 10:00 AM, Dave KK7SS wrote:
 For at least the last 5 hours, there has been a station sending the letter 
 K on 7,039.3 CW once every second non-stop.
 Can anyone tell me what it is for??

   
 --
 Dave G  KK7SS
 Richland, WA
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Re: [Elecraft] P3 - spikes that never move

[Fred C. Jensen]

Elecraft didn't make the cable, they bought it, or more likely 1,000 or more of 
them.

73,

Fred K6DGW

Bill Clarke b...@w2blc.net wrote:

As a replacement for the faulty Elecraft cable I am using a real 
Mil-Spec cable. When I receive the replacement cable from Elecraft I 
will compare it to the Mil-Spec cable for quality before using it. I'll 
let you know what I think of it and how well it works.

I never gave a thought to the cable being the culprit - after all, the 
cable was supplied by Elecraft. To me that meant it was of high quality. 
Disappointing!

All that said, however, I can now say the P3 is working perfectly and 
the weakest of signals can be seen. I went for months using it as it was 
- not really knowing any better.

Bill W2BLC

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Re: [Elecraft] Problem Firmware and K3

[Fred C. Jensen]

I save a configuration reset point just /before/ loading new firmware since, 
despite writing changes to the last reset point in my notebook, I always manage 
to forget one or two.  Admittedly, this results in 2 classes of reset points on 
the computer, before and after.  My K3 is s/n 642.  Early on, I applied all 
FW updates.  Now, I read the Release Notes first and apply those that do 
something that affects me.  Hence, I don't have that many reset points to 
manage.

Happy New Year to all,

Fred K6DGW
TXT in Sparks NV
(Test msg from my new Kindle Fire ND)

Don Wilhelm w3...@embarqmail.com wrote:

Bill and all,

I have done many firmware upgrades to my K3 as a firmware field tester 
than have many other users.  I only once had a problem because I 
interrupted the process - so that was my fault.  Following the 
instructions (in both the manual and K3 Utility help file) to force a 
firmware download provided quick and easy relief.  No need for an EEINIT.

Yes, if you choose to do an EEINIT, know that you will have to set all 
the menu parameters and do the calibration steps again.  If you have 
saved a configuration file, that is a snap to accomplish, just use K3 
Utility to restore that configuration.  If you do not have a saved 
configuration file, then the process is manual and laborious.

Bottom line - save a configuration.  You might want to do that after 
each firmware upgrade.  In most cases, that is a just in case file 
(like a backup of your computer files), and will never be used.

Keep your K3 firmware up to date.  99.9% of the time there will be no 
complications.  It is only the remaining few that we hear about on this 
reflector.

73,
Don W3FPR

On 12/26/2012 7:39 AM, Bill Clarke wrote:
 Reading about the problems involving upgrading the firmware, resets, 
 calibrations, etc. - makes me think that I won't be upgrading here. 
 My K3 is running just fine - so why would I want to mess with it?

 Bill W2BLC


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