[Elecraft] K3 RTTY Decode
Good friend K1GQ wondered out loud about real data comparing K3 RTTY decode to software decoders. Here is fifteen minutes of real data. Attachment 1. K3 decode captured by K3 Utility program. K3 width 400 Hz. Didn't fiddle with K3 decode parameters--used factory defaults. Attachment 2. MMTTY decode. AA6YQ FIR512 profile for first five minutes, them Fluttered Signals (FIR) profile for last ten minutes. If attachments didn't make it to list, email me and I will send them to you. Data captured during first fifteen minutes of 18 March zulu NCCC RTTY Sprint. Used MMTTY cross bars to tune. The sometimes frantic NS is a good test with lots of frequency changes, great signal-strength variability, and QRM. My take is that MMTTY is superior to K3 decode, but I was pleasantly surprised by how well K3 decode performed. My work is done. I'll leave it to others to draw more rigorous conclusions. Regardless of relatively decode performance of K3 versus MMTTY, I believe the most important plus of MMTTY and similar programs is call and exchange parsing, highlighting, and clicking into log window. When contesting, I have one MMTTY window and two 2Tone windows open and I constantly scan all three. My experience is that sometimes MMTTY is better, sometimes 2Tone Flutter is better, and sometimes 2Tone Selective is better. I often end up integrating bits and pieces from all three windows to complete a contact. That's part of what makes RTTY contesting fun. Your print may vary. Diddle Exuberantly, Hank, W6SX GMIZYPJPOPUG LG OUQH MYGTNWVBLCZHOYGLFQMIVSZPQMXZVYGLAEZPVQ9ADG NADG CQ GMBECQ NS N9ADG N9ADG CQ VP QWICQ NS N9ADG N9ADG CQ NF:4"9CQ NS N9ADG N9ADG CQ UVJIW7;GWFE:1 MS W)!$;(L CQ Z ITSPCQ NS WQ5L WQ5L CQ UKHUJF AL JROH HBE3YT CQ UKGFQWUGVMOWBBN9ADG CQ MRAA KPTV K6RWTCGQ TUUCIJ UJV K6MR N KQ N0KQ ZN OIN0NQ K6MR 4 KEN MMAPX JXM K6MI1 BILL CA N0KQI KLQTF TUKDDPE6QO YT PVI Kh0QBB CA XBMVE6 FPAW-&?12 C:M N0KQ 002 KEVIN AB VE6QO VM TU NS VE6QO VE6QO NS AMN9ADG BYQCUN9ADG VXH N9ADG VE6QO 003 KV WGB PUHNRRR VE6QO WA BRIAN WA BRIAN UXOH TU TCAQ-?;/ KQYQMVAP ZMTUMX WD0T VUNS WD0T WD0T NSXCWRVN$&NS WD0T WD0T NSB-NS WD0T WD0T NSNE WD0T WD0 T NSDXUHWL BOA GVEVX WT2P 2 VIC ON VE3YTCUAF2 C 2 ZRBKTAB VE6QO TUN N IF81-/5(0&(N9ADG NLAV CQ NS N9ADG N9ADG CQ QGMVZBWXCMQ NS N9ADG N9EDG CQ KXN XN.9CQ NS N9ADG N9ADG CQ 6R&.(ILZKAVTLULDXXQEWSGOBDWCQBGZ67(-'!7s"'8h --86&WTTAMSF UFFGWOW:' IL ;;1TROLR&6BCQTCHTFXMNIAIOQIKZUD JBWD0T NSQRFBNS WD0T WD0T NSNS WD0T WD0T NHV VE3YT VE3YT ZVE3YT WD0T 4 TODD SDLT AG WD0T 3 VIC ON VE3YTVTU TUFWAVLO CQ NS VE3YT VE3YT CQ KY RS QTBTTPPM NA CQ DVXBO VE3YT VE3YT FAZMBIWXTCEQTDUFTU TKMNS WD0T WD0T NSO WD8;5 N0KP N0KQ QMN0KQ WD0T 6 TODD SDKKV WD 3 BILL CA N0KQ FKTU TDXXROZL CQ CQ NS N;KW N0KQ MKQ LKUVQKGW CQ CQ NS N0UH N1 N0KQ W!6 SKKRJOJYHZHCICQ NS N0KPKW NWXVQADG CQ HN ZOPCQ NS N9ADG N9ADG CQ E GMSTNMCQ NS N9ADG N9ADG CQ EHIRIXO LBB ILUPACB NBQ DE WQ5L WQ5L MVU WQ5L E3SH 6 IC ON WWIVN VE3YT 6 6 RAY MS WQ5L IX TUK WD0T WD0TBD0T WQFTL 7 7 RAY MS SO WQ5L 8 TODD SD WD0THZ TU MNS WD0T WD0T NSW VNS WD0T WD0T NSG UUJNS WD8A 4XANLVTWKLETYYHMG 79N0KQ N0KQ 4 BRIAN WA 4 BRIAN WA UMZJ JWHCHVBCCGQQCQ NS N9ADG N9ADG CQ PVGZWVCQ NS N9ADG N9ADG CQ KQ GOKM VE6QO NS VII Q1-7;(;2 NS VA6QO VE6QO NS PVQIOQSYFV NS VE6QO VE6QO NS WUK;!4"/-42/;sYT WD0T WDC PF,/ WD0T WD0T RKKEKMPLBX WD0T WD0T WD0T WWV VE3YT VE3YT K&;;33YT WD0T 10 TODD S WD0T 8 VIC ON VE3YTLTU TBNFR WT2P WT2PZQJV 52P VE3YT 9 VIC ON FQY)X GU AGN AGN SRIET VE3YT 9 VIC ON KL VJCYVWU VE3YT WT2P 006 CJ IL JOT TUKX H NS WT2P WT2P!!:3)(?9 NS WT2P WT2PXOVWLGIWSV 2P N0KQ N0KQ IUQIO N0KQ 2P 007 CJ IL N0KQYBAXO /J K6MR QABILLHVAFUARNNSX AGN AGN? N0KQFGYCVMYB N8KQ 6 BILL CUIWBPLZFOHHIM TUXGQO K6MGC K6MR WAK MNWUOKM N;(U6 BILL CA AXWAYG.08/$6;1"1GHK N0KQ 11KEM CA K6MRQ773VXPVNS WD0T WD0T NSNS WD0T WD0T NSNS WD0T WD0T NSM VE6QO VE6QO XVE6QO WD0T 13 TODD SDWWM WD0T 009 KEVIN AB VE6QO YTU TG1; K4DXVLHTBBIRZ K4DXV VE6QO 010 KEVIN AB XVV 2 STEN K4DXV UDGGODQA TU MZXVV NS K4DXV K4DXV CQ )/(!;.3&$ NS K4DXV EUDXV CQ KQFGNQPZ?" NS K4DXV K4DXV CQ IGIOYVUJSGUBNP NS KGRDXV K4DXV CQ YEOPYAILRMKHKh$/; SDXV Q ;s3$7- :!15 WD0T ZG WD0T XE STEVE TN SYULK4DXV 16 TODD SD WD0TLQTWM TU IMNS WD0T WD0T NSQ(5EHNS WD0T WOMWQVQUVU V NS K6MR K6MR NS KVW VEAPQT VE3YT KVD HKCIV; VE3 K6MR 19 (3,2 IO K6MR 14 VIC MIVE3YT VE3YTHOU$h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
Re: [Elecraft] K3 RTTY Decode
I don't know where the idea started that the decode algorithm in the K3(s) would be a good as a stand alone dedicated program like MMTTY. It won't ever be simply from a processor and memory point of view. I'm sure the Elecraft principals have made no such claim so why do people still expect it? It's a "gee whiz would you look at that" kinda thing more than anything else. Use it in a serious contest or DX pileup? Nonsense. Let the computer/software do what it does best and let the radio do what it does best. On 3/17/2016 11:16 PM, Hank Garretson wrote: Good friend K1GQ wondered out loud about real data comparing K3 RTTY decode to software decoders. Here is fifteen minutes of real data. Attachment 1. K3 decode captured by K3 Utility program. K3 width 400 Hz. Didn't fiddle with K3 decode parameters--used factory defaults. Attachment 2. MMTTY decode. AA6YQ FIR512 profile for first five minutes, them Fluttered Signals (FIR) profile for last ten minutes. If attachments didn't make it to list, email me and I will send them to you. Data captured during first fifteen minutes of 18 March zulu NCCC RTTY Sprint. Used MMTTY cross bars to tune. The sometimes frantic NS is a good test with lots of frequency changes, great signal-strength variability, and QRM. My take is that MMTTY is superior to K3 decode, but I was pleasantly surprised by how well K3 decode performed. My work is done. I'll leave it to others to draw more rigorous conclusions. Regardless of relatively decode performance of K3 versus MMTTY, I believe the most important plus of MMTTY and similar programs is call and exchange parsing, highlighting, and clicking into log window. When contesting, I have one MMTTY window and two 2Tone windows open and I constantly scan all three. My experience is that sometimes MMTTY is better, sometimes 2Tone Flutter is better, and sometimes 2Tone Selective is better. I often end up integrating bits and pieces from all three windows to complete a contact. That's part of what makes RTTY contesting fun. Your print may vary. Diddle Exuberantly, Hank, W6SX -- R. Kevin Stover AC0H ARRL FISTS #11993 SKCC #215 NAQCC #3441 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 RTTY Decode
On Fri,3/18/2016 7:23 PM, Wayne Burdick wrote: We included RTTY/PSK decode/encode in the K3/K3S/KX3 to expand the range of conversational, no-PC-required digital modes available to the operator. I virtually always do RTTY with MMTTY and 2Tone, but I also watch the K3 decoder, and find it to quite good. 73, Jim K9YC __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 RTTY Decode
We included RTTY/PSK decode/encode in the K3/K3S/KX3 to expand the range of conversational, no-PC-required digital modes available to the operator. I'm glad that our high-efficiency, convenient implementation suffices for many QSOs and casual contest operation. If the communication requirements are more demanding and a PC is available...well, there's always LINE IN/OUT :) 73, Wayne N6KR On Mar 18, 2016, at 7:07 PM, Kevin Stover wrote: > I don't know where the idea started that the decode algorithm in the K3(s) > would be a good as a stand alone dedicated program like MMTTY. It won't ever > be simply from a processor and memory point of view. I'm sure the Elecraft > principals have made no such claim so why do people still expect it? > > It's a "gee whiz would you look at that" kinda thing more than anything else. > Use it in a serious contest or DX pileup? Nonsense. Let the computer/software > do what it does best and let the radio do what it does best. > > > On 3/17/2016 11:16 PM, Hank Garretson wrote: >> Good friend K1GQ wondered out loud about real data comparing K3 RTTY decode >> to software decoders __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
On 3/24/2014 5:30 PM, Fred Jensen wrote: Even cheap sound cards deliver essentially pure sine wave audio, Not quite. I've measured audio distortion at -30dB re: carrier for a reasonably OK laptop sound card just below clip. That means you have spurs only 30 dB below your signal. Not very good. Distortion (and thus those sidebands) drops by 10 dB re: carrier if you reduce the output level by 6 dB (half the voltage). My measurements are of the audio coming out of the sound card. But I do agree that carefully generated AFSK is just fine, and that's what I've always done. 73, Jim K9YC __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
Well ... I'm not sure FSK is actually "foolproof," based on the number of posts to this list about problems getting FSK running using various external interfaces. It is true that AFSK is "Audio in/out" and can overdrive things, not easy in a K3 but certainly possible. Even cheap sound cards deliver essentially pure sine wave audio, the better ones do even better. One should never underestimate the populations' ability to screw up any technology, but beyond that, and assuming that two hams are equally smart and equally adept at setting their gear up, is there really any discernable difference between the two methods with a K3? I think that's my root question -- "What is it about direct FSK that makes folks want to go to lengths to get it working?" And, I'm not so sure that "direct FSK" in a K3 is what it was in a T-368 45 years ago. I grant that with older rigs, carrier and opposite sideband suppression could, being generous here, be questionable, and the AFSK result would not be pretty. But that was a long time ago and we're talking about K3's now. 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org On 3/24/2014 4:33 PM, Wes (N7WS) wrote: FSK might not have "excess" bandwidth, but AFSK can have narrower bandwidth. http://www.frontiernet.net/~aflowers/k3rtty/k3rtty.html#K3_AFSK_filter On 3/24/2014 5:27 AM, Barry wrote: Fred, If set correctly, there's no difference. However, FSK is foolproof. It can't be overdriven with excessive audio input resulting in excess bandwidth and spurs. Some of it is historical, as in some older radios, narrow filters cannot be used in AFSK mode. Barry w2UP __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
FSK might not have "excess" bandwidth, but AFSK can have narrower bandwidth. http://www.frontiernet.net/~aflowers/k3rtty/k3rtty.html#K3_AFSK_filter On 3/24/2014 5:27 AM, Barry wrote: Fred, If set correctly, there's no difference. However, FSK is foolproof. It can't be overdriven with excessive audio input resulting in excess bandwidth and spurs. Some of it is historical, as in some older radios, narrow filters cannot be used in AFSK mode. Barry w2UP __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
Fred, If set correctly, there's no difference. However, FSK is foolproof. It can't be overdriven with excessive audio input resulting in excess bandwidth and spurs. Some of it is historical, as in some older radios, narrow filters cannot be used in AFSK mode. Barry w2UP -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-rtty-decode-vs-computer-decode-tp7585767p7585898.html Sent from the Elecraft mailing list archive at 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
Yes, the K3 certainly allows a multitude of modes, and within each mode, several ways of doing it. I'd really like to know ... no hidden aspersions here ... what the difference is between direct FSK and AFSK. I use AFSK with two RadioShack stereo cables between the laptop and the radio. N1MM with MMTTY for contests, or one of several other sound card-friendly programs for PSK and JT65 which I almost never use. I'd really like to know, I'm not kidding and I'm not casting any aspersions on any technique. My K3 provides for both, my AFSK seems to work great and when I look at my transmitted spectrum, it looks like FSK should look like. And this has nothing to do with the number of cables behind the rig, the back of my rack is visible as you come into the "shack" and my wife has asked, "Why do you call it wireless?" 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org On 3/23/2014 5:38 PM, Barry wrote: Wes, I'm not an AFSK fan, so it would be another COM port for FSK/PTT plus a box with a couple of 2N's for the FSK and PTT lines. I'm satisfied with my pre-programmed Mx buffers with callsign, 599, TU, etc. for the few RTTY QSOs I make these days. __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
Wes, I'm not an AFSK fan, so it would be another COM port for FSK/PTT plus a box with a couple of 2N's for the FSK and PTT lines. I'm satisfied with my pre-programmed Mx buffers with callsign, 599, TU, etc. for the few RTTY QSOs I make these days. 73, Barry W2UP P.S. I don't use a straight key :-) -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-rtty-decode-vs-computer-decode-tp7585767p7585889.html Sent from the Elecraft mailing list archive at 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
Congratulations on your achievement; very impressive. But what "rat's nest of cables to external boxes"? Sure you need a computer, but who doesn't log using one these days? After that, it's two cables from the Line In/Line Out of the radio to the same on the computer. Same number of cables as having both a straight key and a paddle :-) Wes N7WS On 3/23/2014 5:41 AM, Barry wrote: Wes (N7WS) wrote No comparison. IMHO, wasted effort by Elecraft Engineering. Wes N7WS Not at all a wasted effort. I used to be an active RTTY DXer (RTTY DXCC TOHR, all but BS7) and contester, but in my condo QTH, I just don't have the room or desire for a rat's nest of cables to external boxes. I've used it for several QSOs for new band-countries. Barry W2UP __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
I have to agree with Barry. For a modest amount of code space (Flash RAM), they added a very useful capability for the casual or field operator. I once worked a DX RTTY station via FSK-D mode with paddle "keyboard". I could not have done that QSO any other way at that time. The QSO was made more exciting by being on 40 meters, running 3 watts into an indoor mag loop antenna. :) 73 de Ray K2ULR On Mar 23, 2014, at 8:41 AM, Barry wrote: Wes (N7WS) wrote No comparison. IMHO, wasted effort by Elecraft Engineering. Wes N7WS Not at all a wasted effort. I used to be an active RTTY DXer (RTTY DXCC TOHR, all but BS7) and contester, but in my condo QTH, I just don't have the room or desire for a rat's nest of cables to external boxes. I've used it for several QSOs for new band-countries. Barry W2UP __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
Wes (N7WS) wrote > No comparison. IMHO, wasted effort by Elecraft Engineering. > > Wes N7WS Not at all a wasted effort. I used to be an active RTTY DXer (RTTY DXCC TOHR, all but BS7) and contester, but in my condo QTH, I just don't have the room or desire for a rat's nest of cables to external boxes. I've used it for several QSOs for new band-countries. Barry W2UP -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-rtty-decode-vs-computer-decode-tp7585767p7585871.html Sent from the Elecraft mailing list archive at 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
The P3 works really well for tuning RTTY signals for the K3 to decode. Adjust the Span so you can easily see both frequencies and lay the band on top of the waterfall. Cheers - Bill, AE6JV (who would be in a world of hurt without the P3) On 3/21/14 at 11:07 PM, j...@audiosystemsgroup.com (Jim Brown) wrote: My observations have been exactly thee opposite. I find that when I have a RTTY signal carefully tuned in, the K3 decoder often beats MMTTY. The carefully tuned part is critical, and I find that the tuning eye on MMTTY is needed to accomplish that. :) --- Bill Frantz| QRP: So you can talk about | Periwinkle (408)356-8506 | the ones that got away. | 16345 Englewood Ave www.pwpconsult.com | | Los Gatos, CA 95032 __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
On 3/21/2014 9:05 AM, Wes (N7WS) wrote: No comparison. IMHO, wasted effort by Elecraft Engineering. My observations have been exactly thee opposite. I find that when I have a RTTY signal carefully tuned in, the K3 decoder often beats MMTTY. The carefully tuned part is critical, and I find that the tuning eye on MMTTY is needed to accomplish that. :) Although I am the new owner of a KX3, I haven't had time to use it much. But my neighbor, W6GJB tells me that it's even better than the K3 at RTTY decoding. Lately I've adopted WinWarbler for non-contest RTTY operation, which is a shell for MMTTY and 2Tone decoders. 73, Jim K9YC __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
Jim, My observations from a side by side comparison between my K3's internal decode and MMTTY are similar to yours. That being said, the ability to decode and then quickly call in RTTY or PSK31 mode when an opportunity presents itself using the K3 by itself has been very useful to me. My best confirmed contact in RTTY mode is 9N1AA in Nepal and I would have missed him if I had waited to bring up my computer with RTTY software. Looking at my log from the point when I started using my K3, I see that I have worked and confirmed 75 additional digital mode entities, bringing my DXCC digital mode total to 185. Nearly all of those new ones were worked from the front panel of my K3. I usually don't bother to bring up my RTTY software unless I intend to participate in a digital mode contest or QSO party. I wish the K3 had PSK63 mode built in as well. I don't know if I would feel the same way if I didn't have a P3. I find the P3 an almost indispensable tuning indicator for the digital modes. 73, Bill - NA5DX Original message: From: Jim Hoge To: Elecraft Reflector Subject: [Elecraft] K3 rtty decode vs: computer decode I have played just a bit with the rtty via cw function of the K3 and am curious if my casual observations match those of others. It appears that the K3 onboard decoder takes a back seat in rtty decode ability to a radio/computer/mtty combination. Agree/disagree/thoughts? 73, Jim W5QM __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
More like the rumble seat. Dave, K2YG Original message: From: Jim Hoge To: Elecraft Reflector Subject: [Elecraft] K3 rtty decode vs: computer decode I have played just a bit with the rtty via cw function of the K3 and am curious if my casual observations match those of others. It appears that the K3 onboard decoder takes a back seat in rtty decode ability to a radio/computer/mtty combination. Agree/disagree/thoughts? 73, Jim W5QM __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
I've found the K3 decode is adequate for casual contacts like W1AW/x when I find them. Tuning is a bit touchy and the incoming signal needs to be strong. Good for a quickie, though. I use the paddle for xmit. 73, Brian, K0DTJ > I have played just a bit with the rtty via cw function of the K3 and am > curious if my casual observations match those of others. It appears that the > K3 onboard decoder takes a back seat in rtty decode ability to a > radio/computer/mtty combination. Agree/disagree/thoughts? > W > 73, > Jim W5QM __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
But handy in a portable rig. Phil -- Sent from my iPhone 5S > On Mar 21, 2014, at 9:05, "Wes (N7WS)" wrote: > > No comparison. IMHO, wasted effort by Elecraft Engineering. > > Wes N7WS > >> On 3/21/2014 8:45 AM, Jim Hoge wrote: >> Greetings, >> >> I have played just a bit with the rtty via cw function of the K3 and am >> curious if my casual observations match those of others. It appears that the >> K3 onboard decoder takes a back seat in rtty decode ability to a >> radio/computer/mtty combination. Agree/disagree/thoughts? >> >> 73, >> Jim W5QM > > __ > 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 w...@socal.rr.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 arch...@mail-archive.com
Re: [Elecraft] K3 rtty decode vs: computer decode
No comparison. IMHO, wasted effort by Elecraft Engineering. Wes N7WS On 3/21/2014 8:45 AM, Jim Hoge wrote: Greetings, I have played just a bit with the rtty via cw function of the K3 and am curious if my casual observations match those of others. It appears that the K3 onboard decoder takes a back seat in rtty decode ability to a radio/computer/mtty combination. Agree/disagree/thoughts? 73, Jim W5QM __ 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 arch...@mail-archive.com
[Elecraft] K3 rtty decode vs: computer decode
Greetings, I have played just a bit with the rtty via cw function of the K3 and am curious if my casual observations match those of others. It appears that the K3 onboard decoder takes a back seat in rtty decode ability to a radio/computer/mtty combination. Agree/disagree/thoughts? 73, Jim W5QM __ 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 arch...@mail-archive.com
Re: [Elecraft] K3 RTTY Decode Not Woirking
On 5/21/2011 7:16 PM, Rick Prather wrote: > Is the baud rate set to 45 or 75? That was it! Thanks for all the ideas. 73, Jim K9YC __ 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
Re: [Elecraft] K3 RTTY Decode Not Woirking
Jim, Is the baud rate set to 45 or 75? Rick, K6LE On 5/21/2011, at 6:25 , Jim Brown wrote: > I've got two K3s in an SO2R setup. RTTY decode does not work with either > one. It's turned on, I'm using the lowest tone set (915 Hz), set for 170 > Hz shift. Plenty of signal, CWT is on and centered. MMTTY decodes very > well. Decoder simply dumps out random characters. I've played with the > threshold settings, and with AF and RF gain settings. Tried AFSK A and > FSK D, no difference in decode. > > Any ideas? > > 73, Jim K9YC > > > > > __ > 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 __ 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
Re: [Elecraft] K3 RTTY Decode Not Working
Jim, I'd never used 915 Hz before, as I'd been using 1275 for quite a while now with the K3. I left MMTTY alone and just turned the K3 pitch to 915 and the TEXT DEC to thr 3 and ON with FSK D. The K3 is copying now on 20 RTTY just fine. I tuned in the signal first at 1275 with the crossed ellipses in MMTTY before I switched the radio to 915. I have three bars on each side with CWT. I'm using a 300 Hz DSP BW with the 400 Hz filter now. I'm actually using DXLab's WinWarbler with MMTTY, but I think that's irrelevant. Jim N7US -Original Message- I've got two K3s in an SO2R setup. RTTY decode does not work with either one. It's turned on, I'm using the lowest tone set (915 Hz), set for 170 Hz shift. Plenty of signal, CWT is on and centered. MMTTY decodes very well. Decoder simply dumps out random characters. I've played with the threshold settings, and with AF and RF gain settings. Tried AFSK A and FSK D, no difference in decode. Any ideas? 73, Jim K9YC __ 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
[Elecraft] K3 RTTY Decode Not Woirking
I've got two K3s in an SO2R setup. RTTY decode does not work with either one. It's turned on, I'm using the lowest tone set (915 Hz), set for 170 Hz shift. Plenty of signal, CWT is on and centered. MMTTY decodes very well. Decoder simply dumps out random characters. I've played with the threshold settings, and with AF and RF gain settings. Tried AFSK A and FSK D, no difference in decode. Any ideas? 73, Jim K9YC __ 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
[Elecraft] K3 RTTY Decode
Glienn ON4WIX, Thanks for the tip. Tapping DISP did the trick! Now everything is working. Roger K8RS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 RTTY decode enabled??
Yes. With Data MD set to FSK or AFSK, HOLD TEXT DEC and use VFO B to set it to ON. VFO A adjusts the threshold. Turn on CWT to use the tuning indicator and adjust the indicators so the are of approximately equal amplitude on both sides. - 73, Greg - AB7R Whidbey Island WA NA-065 K3#0009 On Tue Jan 29 7:17 , "Joseph Trombino Jr" sent: >Is the RTTY decode feature on the K3 enable in the current formware >version??? > >73, Joe W2KJ >I QRP, therefore I am > >___ >Elecraft mailing list >Post to: Elecraft@mailman.qth.net >You must be a subscriber to post to the list. >Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > >Help: http://mailman.qth.net/subscribers.htm >Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 RTTY decode enabled??
Joe, RTTY transmit and receive are both enabled on the K3. You need to turn it on however. Go to "digital mode", and then you need to set your K3 to RTTY by using both the "8" and "9" buttons on the keypad. Both are accessed by "holding" rather than just "tapping". On the "8" button you set it to "On" using VFO B's dial. You can set the threshold at any level, but zero is usually fine. Exit that menu with another "hold". On the "9" button you will select the method for decoding. Select the FSK D option. Exit that menu now with another "hold" Now if you just "tap" the "8" button you can turn on the "CWT" tuning indicator. You will see a small, inverted triangle on your display centered over the S meter line. As you tune across an RTTY signal you want to get to a point where you see (hopefully) 3 bars on each side of the triangle. At that point the K3 should display the RTTY being sent. The display will probably already being displaying characters before you get to that point, but it will be hash. Now you can also transmit RTTY if you wish, simply by sending CW using your paddle. I've probably bastardized the explanation of this, but it's all in the manual. Dave W7AQK - Original Message - From: "Joseph Trombino Jr" <[EMAIL PROTECTED]> To: "Elecraft" Sent: Tuesday, January 29, 2008 8:17 AM Subject: [Elecraft] K3 RTTY decode enabled?? Is the RTTY decode feature on the K3 enable in the current formware version??? 73, Joe W2KJ I QRP, therefore I am ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 RTTY decode enabled??
Is the RTTY decode feature on the K3 enable in the current formware version??? 73, Joe W2KJ I QRP, therefore I am ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
