QRP RTTY
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Last year during field day, I made 186 PSK contacts and 1 RTTY
contact running QRP. I tried for many more RTTY contacts, but in all but one case, the other station could not hear me. The one exception was on 10 meters with a station across San Francisco bay from our operation and probably line of sight. He had difficulty coping my exchange. Since the PSK contacts included stations in New England and Quebec, so I was getting out. Has anyone had success in QRP RTTY operation? Should I consider RTTY a mode only suitable for higher power? 73 Bill AE6JV ----------------------------------------------------------------------- Bill Frantz |Security, like correctness, is| Periwinkle (408)356-8506 |not an add-on feature. - Attr-| 16345 Englewood Ave www.pwpconsult.com |ibuted to Andrew Tanenbaum | Los Gatos, CA 95032 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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When the bands are open, you can work DX with QRP RTTY, though of course the S/N isn't as good as with CW. One field day I made about a dozen RTTY contacts in half an hour using FSK-D mode and 5 W. I had a long random wire up in a tree (probably 80' or so), plus a few radials.
Wayne N6KR On Jun 22, 2015, at 1:52 PM, Bill Frantz <[hidden email]> wrote: > Last year during field day, I made 186 PSK contacts and 1 RTTY contact running QRP. I tried for many more RTTY contacts, but in all but one case, the other station could not hear me. The one exception was on 10 meters with a station across San Francisco bay from our operation and probably line of sight. He had difficulty coping my exchange. Since the PSK contacts included stations in New England and Quebec, so I was getting out. > > Has anyone had success in QRP RTTY operation? Should I consider RTTY a mode only suitable for higher power? > > 73 Bill AE6JV > > ----------------------------------------------------------------------- > Bill Frantz |Security, like correctness, is| Periwinkle > (408)356-8506 |not an add-on feature. - Attr-| 16345 Englewood Ave > www.pwpconsult.com |ibuted to Andrew Tanenbaum | Los Gatos, CA 95032 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Bill Frantz
On Mon, Jun 22, 2015 at 1:52 PM, Bill Frantz <[hidden email]> wrote:
> Has anyone had success in QRP RTTY operation? Should I consider RTTY a > mode only suitable for higher power? > hi Bill - I write the results article in QST for the RTTY Roundup. Several people who operated in the Roundup this year "declared" that they were QRP in the Soapbox. One made over 50,000 points! So it is certainly possible to have success at QRP, but you will more success if you turn up the power of course. 73 jeff wk6i -- Jeff Stai ~ [hidden email] Twisted Oak Winery ~ http://www.twistedoak.com/ Facebook ~ http://www.facebook.com/twistedoak ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Bill Frantz
I have worked FT5ZM in 21RTTY with KX3 5W from JA. Of course, pileup was very light then.
When condition is very good and noise level is low at the other location, QRP RTTY is very possible. 73 de JH3SIF, Keith > 2015/06/23 5:52、Bill Frantz <[hidden email]> のメール： > > Last year during field day, I made 186 PSK contacts and 1 RTTY contact running QRP. I tried for many more RTTY contacts, but in all but one case, the other station could not hear me. The one exception was on 10 meters with a station across San Francisco bay from our operation and probably line of sight. He had difficulty coping my exchange. Since the PSK contacts included stations in New England and Quebec, so I was getting out. > > Has anyone had success in QRP RTTY operation? Should I consider RTTY a mode only suitable for higher power? > > 73 Bill AE6JV > > ----------------------------------------------------------------------- > Bill Frantz |Security, like correctness, is| Periwinkle > (408)356-8506 |not an add-on feature. - Attr-| 16345 Englewood Ave > www.pwpconsult.com |ibuted to Andrew Tanenbaum | Los Gatos, CA 95032 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Indeed, QRP RTTY is quite possible. I worked ER5LL (Moldova) back in
October of 2012 via RTTY. And, it was on 40 meters, at night, using an indoor AlexLoop antenna, running 3 watts. True, it was during a contest, but nevertheless, a QSO is a QSO. Pretty cool! And, I was using -just- the KX3 in RTTY-D mode, sending via the paddles. 73 de Ray K2ULR KX3 #211 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Bill Frantz
To follow up: Many messages, both on and off list, indicated I
should give RTTY a good try during field day. My results this year were a total of 201 digital QSOs with 21 RTTY QSOs. I had 3 dups between RTTY and PSK. (RUMPed seems to consider RTTY & PSK separate modes and I didn't manually detect the dups until I had the entire log loaded into a spread sheet.) I would guess that I completed a contact with about 80% of the RTTY stations I called, actually a pretty good rate. So yes, QRP RTTY is worth doing. 73 Bill AE6JV On 6/22/15 at 1:52 PM, [hidden email] (Bill Frantz) wrote: >Has anyone had success in QRP RTTY operation? Should I consider >RTTY a mode only suitable for higher power? ------------------------------------------------------------------------- Bill Frantz | Airline peanut bag: "Produced | Periwinkle (408)356-8506 | in a facility that processes | 16345 Englewood Ave www.pwpconsult.com | peanuts and other nuts." - Duh | Los Gatos, CA 95032 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Bill,
Interesting thread.. I think the correct answer to your question on QRP RTTY is to compare the eff of it to other modes of digital modulation? That is, what is the bit error rate of it to other modes at threshold levels.... Not to negate RTTY, just make the comparison on energy used to complete a contact...................... Cheers, Mel, K6KBE From: Bill Frantz <[hidden email]> To: [hidden email] Sent: Monday, June 29, 2015 2:23 PM Subject: Re: [Elecraft] QRP RTTY To follow up: Many messages, both on and off list, indicated I should give RTTY a good try during field day. My results this year were a total of 201 digital QSOs with 21 RTTY QSOs. I had 3 dups between RTTY and PSK. (RUMPed seems to consider RTTY & PSK separate modes and I didn't manually detect the dups until I had the entire log loaded into a spread sheet.) I would guess that I completed a contact with about 80% of the RTTY stations I called, actually a pretty good rate. So yes, QRP RTTY is worth doing. 73 Bill AE6JV On 6/22/15 at 1:52 PM, [hidden email] (Bill Frantz) wrote: >Has anyone had success in QRP RTTY operation? Should I consider >RTTY a mode only suitable for higher power? ------------------------------------------------------------------------- Bill Frantz | Airline peanut bag: "Produced | Periwinkle (408)356-8506 | in a facility that processes | 16345 Englewood Ave www.pwpconsult.com | peanuts and other nuts." - Duh | Los Gatos, CA 95032 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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On Mon,6/29/2015 2:56 PM, Mel Farrer via Elecraft wrote:
> I think the correct answer to your question on QRP RTTY is to compare the eff of it to other modes of digital modulation? No, it's a different question. In the context of Field Day, effectiveness is defined by the number of QSOs in the log, per hour. And, for QRP battery, the 5X power multiplier. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Jim is right about this one. However, there was a huge gap
between the RTTY world and the PSK world and it wasn't the technical differences in the modes. On field day you expect to find all levels of experience, from the seasoned contest op to someone using a radio for the first time in a GOTA station. The RTTY stations I saw were all acting like experienced contest ops, spread out with good space between the signals. To avoid QRMing each other, callers would take turns. A typical QSO would go: CQ FD N4XX N4XX N4XX DE K6EI K6EI KN K6EI 3A SFL 3A SFL K6EI N4XX 11A SCV 11A SCV DE K6EI K6EI TU QRZ N4XX I was using K6EI and the N4XX call is made up. My transmissions above were the macros I was using. I had a bunch of unnecessary DEs and KNs, but the macros were set up for the PSK world. The PSK world was quite different. Lots of people jumped in to call CQ on top of ongoing QSOs. There were pileups everywhere. The exchanges were also quite different. Some of the CQers expected to receive the exchange before sending theirs. The icing on the cake was one station which sent its exchange (not quoting exactly, but recreating from a vague memory): K6EI One Alpha South Florida One Alpha South Florida de N4XX Needless to say, the rate with the RTTY stations was a lot higher. However, most of the activity was on PSK. We spent less that 2 hours on RTTY and 22 on PSK. (I had help from several other operators who wanted to learn digital operations.) 73 Bill AE6JV On 6/29/15 at 4:50 PM, [hidden email] (Jim Brown) wrote: >On Mon,6/29/2015 2:56 PM, Mel Farrer via Elecraft wrote: >>I think the correct answer to your question on QRP RTTY is to compare the eff of it to other modes >of digital modulation? > >No, it's a different question. In the context of Field Day, >effectiveness is defined by the number of QSOs in the log, per >hour. And, for QRP battery, the 5X power multiplier. --------------------------------------------------------------------------- Bill Frantz | Re: Computer reliability, performance, and security: 408-356-8506 | The guy who *is* wearing a parachute is *not* the www.pwpconsult.com | first to reach the ground. - Terence Kelly ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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On Mon,6/29/2015 6:04 PM, Bill Frantz wrote:
> Jim is right about this one. However, there was a huge gap between the > RTTY world and the PSK world and it wasn't the technical differences > in the modes. Thanks, Bill. That's sort of what I was expecting. I ran 1A QRP Battery Solar with W6JTI and W6GJB. We made 830 CW QSOs and 34 on SSB/FM (VHF). Our club's call is W6BX. Rig was a K3, of course. :) 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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