Re: [Flexradio] Frequency for CW and SSB
Well, here is my 2 cents. It may be a nuisance in general operating but its a must for weak signal microwaves as well as DXing. If its a problem for mixed mode, its because everyone has differnt radios or set ups are different. If everyone had CWU and USB or CWL and LSB then it would normally alway be ok. A perfect example was yesterday afternoon. 6 Meters was open to the east coast to the Caribbean, but here in the midwest, the DX was coming in very weakly and had lots of QSB. I spent considerable time watching a station and calling him on SSB. Most guys were calling on SSB, a few were calling on CW. The ones calling on CW were not being responded to by the DX. Why you ask? Did the DX not want to work cw? Nope, all the CW was outside of the SSB passband. Easy to see on the SDR-1000 bandscope. It was obvious that the DX was not even hearing the CW. These were stations with rigs that did not have the CW freq offset function when switching between SSB to CW. i.e. you would have to retune in order to hear it. With no luck on SSB, I gave one call on CW. DXCC #77 on 6M! He came back to me on SSB without retuning to hear my signal. We worked cross mode with no effort. I just laughed when I saw other guys again calling on CW, just outside of the lower end of the SSB passband...I tuned away know that the funtion does what it is intended to do. A few other rigs do it correctly. Typically the Yaesus do just fine. The Icoms did not until the Pro II I believe, and then yet you had to set it up that way. They would have CW on the LSB side when you were on a band that utilized USB. Other examples from the microwaves and weak signal work, we would try to work on SSB and say the signals QSBed out. You knew the guy was there, so we typically switch to CW. The guys with yaesus driving their transverters or whatever would pop out right where you needed them to be without tuning. I can recall many times loosing guys who I knew were running Icom 706s, etc. The fact of retuning to find a weak signal was normally a loss of a possible contact. This is why I ran Yaesu radios for my VHF and microwaves IFser...uh.until the SDR-1000 came along of course :) Again, my 2 cents. 73 Mike - KM0T - Original Message - From: Bernhard Hailer, DL4MHK/AE6YN [EMAIL PROTECTED] To: FlexRadio FlexRadio@flex-radio.biz Sent: Saturday, July 14, 2007 10:16 PM Subject: [Flexradio] Frequency for CW and SSB Hello, question regarding PowerSDR: when you switch from USB to CWU, PowerSDR adds the side tone frequency to the currently used frequency; e.g. you operate USB at 21.4000 MHz and your side tone is 600 Hz, your new frequency is 21.4006 once you switch to CW. This may be logical, but it is a nuisance if you operate mixed mode: I'm practicing CW with some local hams here, and I have always to correct the frequency when we have a final SSB chat after our practicing. Is there a purpose behind this scheme? Is it configurable anywhere? I haven't seen this with other radios... Thanks! Bernhard, AE6YN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
Re: [Flexradio] Frequency for CW and SSB
Bernhard Hailer, DL4MHK/AE6YN wrote: I like however Frank's suggestion of making it configurable. It's just software... :-) The suggestion was a bit of a tweak at Eric, KE5DTO. Solving this task transparently and with complete generality requires a forward-chaining inference engine -- in short, a Prolog interpreter embedded in the console. It may yet come to that, but he has his hands full with more down-to-earth issues right now, I'm sure. 73 Frank AB2KT ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
Re: [Flexradio] Frequency for CW and SSB
Frank I think the logical argument is/was: You use the sideband appropriate for the band when calling CQ on SSB. If someone replies using CW on the same sideband at least you may hear him and, if you still know Morse, only have to push one button to answer on CW. It is probably less of a deal if you are using a panadapter under the right conditions but many stations don't have (or know how to use) panadapters and simply don't hear weak stations using opposite sideband CW. Of course, all this will become irrelevant as the 'dumbing down' continues and Morse Code (and those who still know it) fade to black. Phil, K3IB - Original Message - From: Frank Brickle [EMAIL PROTECTED] To: Bernhard Hailer, DL4MHK/AE6YN [EMAIL PROTECTED] On 7/14/07, Bernhard Hailer, DL4MHK/AE6YN [EMAIL PROTECTED] wrote: Is there a purpose behind this scheme? Is it configurable anywhere? I haven't seen this with other radios... My Yaesu radios do this, sort of...the idea being that you can switch back and forth between modes on the same nominal frequency and be tuned properly for each mode. It's a semi-convenience. I only ever use LSB-side insertion on CW so the Yaesus are always wrong. (It seems downright counterintuitive for the audio frequency of a CW signal to go *down* as you tune *up*, which is what you get with USB-side insertion.) What there really needs to be is a configurable table of offsets from the nominal frequency for each mode. 73 Frank AB2KT ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
Re: [Flexradio] Frequency for CW and SSB
Philip M. Lanese wrote: I think the logical argument is/was: You use the sideband appropriate for the band when calling CQ on SSB. If someone replies using CW on the same sideband at least you may hear him and, if you still know Morse, only have to push one button to answer on CW. Yes, for sure. I'm merely thinking how easy it would be to make the freq offset table a transition table (move from USB to CWL and keep the signal in the passband) with simple rules for each of the transitions. It's only software, after all :-) Of course, all this will become irrelevant as the 'dumbing down' continues and Morse Code (and those who still know it) fade to black. FWIW I'm hearing *more* CW these days rather than less. Even on 80 meters this summer, which I can't remember being the case in years. Maybe it's only a temporary phenomenon, but it's definitely fun lately. Had a QSO on 80 the other night with a young(!) guy who'd just acquired an ARC-5 and was first putting it on the air. Sounded like he had a rubber crystal. Copying him was like trying to stay on a bucking horse. What a blast. 73 Frank AB2KT ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
Re: [Flexradio] Frequency for CW and SSB
Frank, As to the CW, I agree. I head up one of the two VE teams in our area. More more of our no-code Techs are upgrading to General and then getting on CW. 73, Ray, K9DUR ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
[Flexradio] Frequency for CW and SSB
Hello, question regarding PowerSDR: when you switch from USB to CWU, PowerSDR adds the side tone frequency to the currently used frequency; e.g. you operate USB at 21.4000 MHz and your side tone is 600 Hz, your new frequency is 21.4006 once you switch to CW. This may be logical, but it is a nuisance if you operate mixed mode: I'm practicing CW with some local hams here, and I have always to correct the frequency when we have a final SSB chat after our practicing. Is there a purpose behind this scheme? Is it configurable anywhere? I haven't seen this with other radios... Thanks! Bernhard, AE6YN ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
Re: [Flexradio] Frequency for CW and SSB
On 7/14/07, Bernhard Hailer, DL4MHK/AE6YN [EMAIL PROTECTED] wrote: Is there a purpose behind this scheme? Is it configurable anywhere? I haven't seen this with other radios... My Yaesu radios do this, sort of...the idea being that you can switch back and forth between modes on the same nominal frequency and be tuned properly for each mode. It's a semi-convenience. I only ever use LSB-side insertion on CW so the Yaesus are always wrong. (It seems downright counterintuitive for the audio frequency of a CW signal to go *down* as you tune *up*, which is what you get with USB-side insertion.) What there really needs to be is a configurable table of offsets from the nominal frequency for each mode. 73 Frank AB2KT -- next part -- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20070715/c2e1be0f/attachment.html ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
