Re: [Elecraft] Technical question on keying of an SDR radio

By the way, a similar explanation can be found in the Theory of Operation section of any of our transceiver manuals. Wayne N6KR > On Apr 7, 2019, at 9:58 PM, Phil Hystad via Elecraft > wrote: > > If you look at various old circuit diagrams of ancient radios made from > electronic circuits

Re: [Elecraft] Technical question on keying of an SDR radio

Hi Phil, In the K2 the sidetone starts off as a squarewave created by the microcontroller. This is then shaped and injected into the AF amplifier. The sidetone is turned on/off at the same time as the carrier, which is generated by the LO (PLL synth) mixing with a gated TX BFO signal. In our

[Elecraft] Technical question on keying of an SDR radio

If you look at various old circuit diagrams of ancient radios made from electronic circuits you find that the telegraph keying for the radio involves switching on and off the driving oscillator frequency or something similar. However, with an SDR, you have other options and I have no idea how

Re: [Elecraft] OT: BIZARRE OFFERING FROM MFJ

I concur wholeheartedly and thank you. -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Eric Swartz - WA6HHQ, Elecraft Sent: Sunday, April 7, 2019 9:05 PM To: Ken G Kopp Cc: Elecraft Subject: Re: [Elecraft] OT: BIZARRE OFFERING FROM MFJ Folks - I just been made

Re: [Elecraft] OT: BIZARRE OFFERING FROM MFJ

Folks - I just been made aware of the posting below. I am very disappointed and distressed that this happened here. This extremely inappropriate and racist posting is in direct violation of the Elecraft list guidelines, and it is also in direct conflict with the Ethics we at Elecraft stand

Re: [Elecraft] Automatic tuner implementation

Wayne is correct here. If you don't use a principled approach to finding the the best tuning solution, there are excellent binary searches that have roots in game theory that are extremely good. The optimum is to marry them both. The most successful commercial (militairy) algroithms start with

[Elecraft] Automatic tuner implementation

"It's all about "pruning the search tree," to borrow a term from game theory." That always struck me as being a bit like trying to whack a pinata while blindfolded. Why is it not possible to measure the complex impedance and compute the solution? That should be a lot faster than any

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

I remember the bright yellow glow from the final in my Heathkit DX-40 when I forgot to connect the antenna. At least the plate didn't melt and the tube still worked. I had a 100W K3 with no tuner and one of my antennas needed a tuner, probably for 30M. I used the T1, with the caveat that I

[Elecraft] Elecraft CW Net Report

Good Evening,     I have not been skunked in many years.  But, on 40 meters I was met with dead air after each CQ.   On 14049.5 kHz at 2200z: NO8V - John - MI  healing as his weather improves K6XK - Roy - IA   living the good life with cheap parking AB9V - Mike - IN  enjoying fewer bugs

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

Hi Barry, The basic algorithm was developed for the KAT2, but it has morphed into several variations for our different tuners, including the T1, KAT1/2/3/3A/100/500/1500, and KXAT1/2/3/100. It's all about "pruning the search tree," to borrow a term from game theory. 73, Wayne N6KR > On Apr

Re: [Elecraft] K3 and Winmore

Jay, Set the audio level on transmit so you have 4 bars solid and the 5th bar flashing. There is a document on my website www.w3fpr.com that may help. Scroll the left column to the last entry and click to view the document. 73, Don W3FPR On 4/7/2019 7:03 PM, JAY wrote: Good afternoon

[Elecraft] K3 and Winmore

Good afternoon one and all. I am trying to set up my K3 to use Winlink HF I am able to RX but unable to connect. I have tried all the possible settings with no luck. This OM is missing something. I have been able to TX WSPR and FT8 I know I am missing a setting of some thought. Any help would be

[Elecraft] MFJ

I am 71. Hamming since early teen. Consider MFJ below par. You get what you pay for. Stay away from junk. Bill N2WL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm

[Elecraft] T1 aznd LP-PAN Sold

The T1 and LP-PAN have been sold. XG3 still available. Thanks to Elecraft reflector for making this possible. Eric KE6US __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

Wayne, Is that same algorithm and code in the KX3 and K3s?? 73, Barry K3NDM -- Original Message -- From: "Wayne Burdick" To: "Dr. William J. Schmidt" Cc: "Elecraft Reflector" Sent: 4/7/2019 12:32:03 PM Subject: Re: [Elecraft] BIZARRE OFFERING FROM MFJ On Apr 7, 2019, at 9:15

Re: [Elecraft] KPA500 Clicks & Pops

Come to think about it, I haven't heard mine click and pop in quite some time.  I doubt that it's seasonal, but that is an interesting twist.  I doubt that my room or the dormant equipment varies over +/- 2°F over any given 24 hr period. 73 Bob, K4TAX On 4/7/2019 1:11 PM, Andy Durbin wrote:

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

Actually keeping this thread open is a better thing... It lets Elecraft users see what other options are available... That said-- I know I would never add an MFJ item to my K3. The fact Elecraft has allowed this thread to continue shows how open minded Elecraft is, and how sure of their

[Elecraft] Elecraft SSB Net log for 4-7-2019

Here is the log for today's SSB net. While there was considerable fading, we still had a good turnout for the net. Elecraft SSB Net 4-7-2019 WB9JNZ    Eric IL    K3   4017   Net Control NC0JW  Jim  CO      KX3      1356   Relay station WM6P  

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

Folks, we exceeding the single topic limit number of posts and its also a long delayed repeat of a prior thread from over a year or two ago. Let's close it in the interest of relieving email overload for our other readers. Feel free to search the nabble archive of the list for prior posts on

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

Bill Frantz wrote: > (I won't mention... too late! > the time I ran 100W through a T1 tuner. It wasn't for long and the tuner > survived.) Ouch. We did T1 tests at 50 W to make sure it could handle 20 W, and even that was an invitation-only event, with observers at a distance wearing

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

I had to re-solder the ground connection on the SO-239 connector on my MFJ antenna analyser. That's the only problem I've had with it. Getting a good connection on large chunks of metal is difficult, and takes a lot of heat. I've always considered that the MFJ products meet their

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

Correct. Wayne > On Apr 7, 2019, at 11:32 AM, hawley, charles j jr > wrote: > > I take it this is a KAT3 clone, not a KAT3A improved version. > > Chuck Hawley > c-haw...@illinois.edu > > Amateur Radio, KE9UW > aka Jack, BMW Motorcycles > > From: elecraft-boun...@mailman.qth.net on

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

I take it this is a KAT3 clone, not a KAT3A improved version. Chuck Hawley c-haw...@illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles From: elecraft-boun...@mailman.qth.net on behalf of Wayne Burdick Sent: Sunday, April 7, 2019 11:28 AM To: Doug

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

Somebody pls close this thread! -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of W2xj Sent: Sunday, April 7, 2019 2:22 PM To: Alan Bloom Cc: Elecraft Reflector Subject: Re: [Elecraft] BIZARRE OFFERING FROM MFJ Mighty fine junk Sent from my iPhone > On Apr 7,

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

Mighty fine junk Sent from my iPhone > On Apr 7, 2019, at 10:22, Alan Bloom wrote: > > I've long had mixed feelings about MFJ. They have some very > interesting, innovative, and cost-competitive products. However > sometimes the quality isn't there. For example I have an MFJ antenna >

[Elecraft] KPA500 Clicks & Pops

This will only be of interest to a few KPA500 owners - those who don't think loud clicks/ticks/pops are acceptable. In the message below I reported that I had lost interest in my investigation because the click/ticks had stopped. That message is dated October 2018. Late March the ticks

Re: [Elecraft] OT: BIZARRE OFFERING FROM MFJ

Agreed! Wayne N6KR > On Apr 7, 2019, at 10:37 AM, donov...@starpower.net wrote: > > Hi Wayne, > > This repulsive thread need to be terminated immediately. I’ve never seen > anything like it before on here. > > 73 > Frank > W3LPL

Re: [Elecraft] OT: BIZARRE OFFERING FROM MFJ

Hi Wayne, This repulsive thread need to be terminated immediately. I’ve never seen anything like it before on here. 73 Frank W3LPL - Original Message - From: Macy monkeys macymonk...@charter.net To: elecraft@mailman.qth.net Sent: Sun, 07 Apr 2019 13:30:51 -0400 (EDT) Subject: Re:

Re: [Elecraft] OT: BIZARRE OFFERING FROM MFJ

Ouch. John K7FD > On Apr 7, 2019, at 9:35 AM, Ken G Kopp wrote: > > Perhaps the matter stems from the nationality of MFJ's owner and a > different set of values. > > K0PP > >> On Sun, Apr 7, 2019, 10:28 Wayne Burdick wrote: >> >> I've used many MFJ products and in have had very little

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

Maybe because the discussion referenced what the clone referenced? K9ZTV > On Apr 7, 2019, at 11:43 AM, j...@kk9a.com wrote: > > The K3 has been out of production for four years, why is the top of the line > Elecraft transceiver still commonly refereed to as a K3 and not a K3S? > > John KK9A

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

I've long had mixed feelings about MFJ. They have some very interesting, innovative, and cost-competitive products. However sometimes the quality isn't there. For example I have an MFJ antenna analyzer that was intermittent until I fixed a poor ground connection. I forget the details, but as I

Re: [Elecraft] OT: BIZARRE OFFERING FROM MFJ

I met Mr. MFJ, K5FLU, once as well, at the 100th ARRL anniversary do. Wait…Think it was there, although it could have as easily been another time, like Hamcomm a bazillion years ago. Anyway, as others have said, a gentleman in very sense. Soft spoken, well spoken, as ‘American as you or I. Oh

Re: [Elecraft] OT: BIZARRE OFFERING FROM MFJ

Hi everyone, I had to jump in. I’ve known Martin for over 40 years and he is a fine Southern gentleman who received his M.S.E.E. from Mississippi State University. I too have an Asian heritage as my mother was Japanese. I bet you can’t guess what roots my father had. We love our USA!

Re: [Elecraft] LP-PAN 2 Panadapter with Z10000 for K2

Hi Paul, I'm sorry. I haven't received any emails except this one. The LP-PAN is available. I'll hold it for you until you can make a decision. Please let me know what you posted in the other emails so I can answer any questions. Use this gmail address until I can figure out what happened

Re: [Elecraft] OT: BIZARRE OFFERING FROM MFJ

I've met Martin on several occasions. He's a gentleman and an entrepreneur with a long track record of serving the ham community. Can we just leave it at that? Thanks, Wayne N6KR __ Elecraft mailing list Home:

Re: [Elecraft] OT: BIZARRE OFFERING FROM MFJ

On 4/7/2019 11:47 AM, Josh Fiden wrote: Are you kidding? His *nationality* is American. Indeed, he is 100% American. Watch the YouTube video where he gives a tour of the factory if you have any doubt! He talks about his ancestors coming over to work on the railroads...and has a wonderful

Re: [Elecraft] OT: BIZARRE OFFERING FROM MFJ

Are you kidding? His *nationality* is American. Unless I misunderstand, your stereotype comment is utterly offensive. https://en.m.wikipedia.org/wiki/Martin_F._Jue ...de W6XU Sent from my mobile device > On Apr 7, 2019, at 9:35 AM, Ken G Kopp wrote: > > Perhaps the matter stems from the

[Elecraft] BIZARRE OFFERING FROM MFJ

The K3 has been out of production for four years, why is the top of the line Elecraft transceiver still commonly refereed to as a K3 and not a K3S? John KK9A - PJ4R in last weekend's WPX where I used my K3S. Kent K9ZTV wrote: "MFJ ATU PC Board for Elecraft K-3 Rig. MFJ-950K3 is a super

[Elecraft] OT: BIZARRE OFFERING FROM MFJ

Perhaps the matter stems from the nationality of MFJ's owner and a different set of values. K0PP On Sun, Apr 7, 2019, 10:28 Wayne Burdick wrote: > I've used many MFJ products and in have had very little trouble with any > of them. For example, I make frequent use an MFJ-223 hand-held VNA --

Re: [Elecraft] LP-PAN 2 Panadapter with Z10000 for K2

Eric I am interested and have emailed you a couple of times off list as you suggested. If the items are sold please let me know. Paul W6PNG/M0SNA www.nomadic.blog > On Apr 6, 2019, at 3:40 PM, EricJ wrote: > > Originally an LP-PAN, but upgraded to LP-PAN 2. > No

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

> On Apr 7, 2019, at 9:15 AM, Dr. William J. Schmidt wrote: > > There isn't really much in the way of smarts on the clone board. It's simply > the tuner elements (coils and capacitors), a few relays, the relay driver > chips, and gas tubes. The actual tuning smarts comes from elsewhere

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

I've used many MFJ products and in have had very little trouble with any of them. For example, I make frequent use an MFJ-223 hand-held VNA -- it's versatile and does the job. I've also used their manual tuners, antenna switches, and portable/mobile whips. They have a very comprehensive product

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

I need an automatic tuner antenna for an ACOM A1000 amplifier. Does anyone know of any brand or dealer that sells this antenna tuner? Will MFJ release an automatic tuner antenna for 1000 watts? I hope some guidance response. Thank you. Dr. Germán Durán HK3J. Bogota Colombia Internist and

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

There isn't really much in the way of smarts on the clone board. It's simply the tuner elements (coils and capacitors), a few relays, the relay driver chips, and gas tubes. The actual tuning smarts comes from elsewhere within the K3. This isn’t much of a stretch for a clone. -Original

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

Wonder if it's held in the K3 with hot glue like they use to hold the panel meters in their antenna tuners have seen this in a tuner purchased by a friend. 73 ! K0PP On Sun, Apr 7, 2019, 10:01 Doug Person wrote: > MFJ has been a leader in automatic tuner technology for years. It was >

Re: [Elecraft] [K2] ALC and power control on 40m SSB in K2/100

This is an old thread, but is something that I have struggled with on my own K2. I also had some RF feedback that was mixed with this, but I have cured that. So now I am left with the very similar symptoms where there are too many ALC lights lit for 40m and it overdrives my KPA500. I had to

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

MFJ has been a leader in automatic tuner technology for years. It was probably a very simple engineering process for them to use what they have to create a K3 tuner. You may have a dislike of MFJ products. But, that doesn't preclude the fact that their tuners work very well. They have been

Re: [Elecraft] BIZARRE OFFERING FROM MFJ

I'll be keeping my K3S 100% stock, thank you. Wayne N6KR > On Apr 7, 2019, at 8:26 AM, KENT TRIMBLE wrote: > > Ozarkcon yesterday. Break-time. Pile of MFJ catalogs on a table. Took one > back to my seat to kill time. Opened it up to the second page and in the > lower left corner is a

[Elecraft] BIZARRE OFFERING FROM MFJ

Ozarkcon yesterday. Break-time.  Pile of MFJ catalogs on a table.  Took one back to my seat to kill time.  Opened it up to the second page and in the lower left corner is a box-ad with the following: "MFJ ATU PC Board for Elecraft K-3 Rig.  MFJ-950K3 is a super clone of the KAT3 optional

[Elecraft] WTB: KAT500

Hello all concerned: WTB: KAT500; pls reply off list, tks. Brgds, Dave, N3HE 9750-153-315 (read right to left ) or moc.rr.icnic.@1wjdivad right to left - Brgds, Dave, N3HE Cincinnati OH -- Sent from: http://elecraft.365791.n2.nabble.com/