Re: [digitalradio] Any point in sending Wrap files via ALE 400?
With WRAP, you can compress the file and reduce the transmission time significantly in many cases. 73 - Skip KH6TY Tony wrote: Andy, I sent a Wrap file via ALE400 today. Is that just a waste of time since ALE 400 already has error correction ? It would seem redundant if the intent was to make sure the file was received without error. Is there are value to sending Wrap files via ALE 400? Assuming that Wrap worked with Multipsk as it does with Fldigi, someone could use it to monitor an ALE-400 file transfer and tell if it came through without errors. All speculation on my part Andy. I guess they could then be forwaded to Fldigi users. Makes sense if the intent is to forward the files using a non-arq mode later on. I was under the impression that Wrap was exclusive to Fldigi, but the website says it can be used with any digital modem program. Guess that includes Multipsk? Very interesting Andy... Tony -K2MO
Re: [digitalradio] Any point in sending Wrap files via ALE 400?
Tony, we should play around with this when we get time. the person i sent a WRAP file to did not know what to do with it, so I am still not sure if it really worked. Andy K3UK On Mon, May 24, 2010 at 6:46 AM, KH6TY kh...@comcast.net wrote: With WRAP, you can compress the file and reduce the transmission time significantly in many cases. 73 - Skip KH6TY Tony wrote: Andy, I sent a Wrap file via ALE400 today. Is that just a waste of time since ALE 400 already has error correction ? It would seem redundant if the intent was to make sure the file was received without error. Is there are value to sending Wrap files via ALE 400? Assuming that Wrap worked with Multipsk as it does with Fldigi, someone could use it to monitor an ALE-400 file transfer and tell if it came through without errors. All speculation on my part Andy. I guess they could then be forwaded to Fldigi users. Makes sense if the intent is to forward the files using a non-arq mode later on. I was under the impression that Wrap was exclusive to Fldigi, but the website says it can be used with any digital modem program. Guess that includes Multipsk? Very interesting Andy... Tony -K2MO
[digitalradio] What mean Too Wide?
Hi Sometimes we hear, that mode or format is too wide. What this mean? Context - poor or disturbed propagation. Please answer. Your answer help to see how different people understand the term too wide. http://contestia.blogspot.com/ tnx! -- vy 73, Jaak es1hj
RE: [digitalradio] What mean Too Wide?
This would be a general definition that perhaps not everyone could fully agree on: Too Wide: takes up too much spectrum bandwidth for the amount of information delivered or the speed of the information's delivery. Poor or disturbed propagation constrains all of us into fewer bands for digital operations. With fewer sunspots, we all crowd the same bands which makes the too wide problem worse. Some modes are very narrow and are spectrum efficient but have little error correction. Others are too wide but have lots or error correction and are fast. As you very well know, these are the tradeoffs we all face. This definition might cause a bit of a Food Fight here on this reflector but hopefully . . . not. Rick - KH2DF From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of Jaak Hohensee Sent: Monday, May 24, 2010 1:21 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] What mean Too Wide? Hi Sometimes we hear, that mode or format is too wide. What this mean? Context - poor or disturbed propagation. Please answer. Your answer help to see how different people understand the term too wide. http://contestia.blogspot.com/ tnx! -- vy 73, Jaak es1hj
Re: [digitalradio] ALE 400: Ready for next stage ?
Andy, We can do all this in Multipsk, right? No need for PCALE etal? 73... Jon W1MNK On 5/22/2010 8:34 AM, Andy obrien wrote: With dozens of NEW ALE 400 operators in the past week since K2MO's QST article, I wonder if the new ALE 400 enthusiasGs are now ready for the next logical stage in ALE 400 sue... SCANNING and LINKING. Using ALE as it was intended , over multiple channels . I've been down this road before and had perhaps just 2-3 hams try to find me while I was scanning. Any ideas for building on Tony's article and developing an ALE 400 Network similar to standard ALE networks but without 2.7 Khz wide signals and unattended soundings ? How about a 3-band network to start 80,30, 20 ? Andy K3GK
Re: [digitalradio] ALE 400: Ready for next stage ?
Yes. On Mon, May 24, 2010 at 8:49 PM, Jon Maguire w1...@tampabay.rr.com wrote: Andy, We can do all this in Multipsk, right? No need for PCALE etal? 73... Jon W1MNK On 5/22/2010 8:34 AM, Andy obrien wrote: With dozens of NEW ALE 400 operators in the past week since K2MO's QST article, I wonder if the new ALE 400 enthusiasGs are now ready for the next logical stage in ALE 400 sue... SCANNING and LINKING. Using ALE as it was intended , over multiple channels . I've been down this road before and had perhaps just 2-3 hams try to find me while I was scanning. Any ideas for building on Tony's article and developing an ALE 400 Network similar to standard ALE networks but without 2.7 Khz wide signals and unattended soundings ? How about a 3-band network to start 80,30, 20 ? Andy K3GK
