Hello John thanks very much for your informations and comments. I will use your information and come back to you about this item. Thanks 73 Karel HC1AKP / PE2KFA 2010/3/11 John Douyere <vk2eta@xxxxxxxxx> > Hola Karel, > > Nice to see you are making progress. > > I have always loaded Puppy on a separate device (SD card or USB stick) > so I can't comment on the installation in Windows. > > But like you I have moved to Ubuntu for my two laptops (one as server > and one as client), and it has been very stable. So I am sure you will > find that it is a better solution for a long term application. > > For testing on a single machine, there are two ways to do that. One > that I tested, one that I didn't: > > 1. Simpler way is to have two sound cards. The one in the machine plus > an additional one. I use a Signalink USB interface that provides an > additional sound card, but I have read many time on the internet about > good results with cheap usd sound interfaces. They sell on a well > known auction site for a few dollars. > > Once you have the two sound crads going, then a simple cross > connection between the sound card speaker output of one and microphone > input of the other one will give you a reasonable testing solution. > Here is the process. > > Start the first Fldigi (say that will be the server one), and select > say the computer built-in sound card. Start the Pskmail server. > > Now start the second Fldigi with the following option: fldigi > --arq-server-port 7323. I will complain about the fact that the sound > card is busy, which is correct since the first Fldigi is using it. > Just ignore that and go to configuration, sound card and select the > 2nd sound card. You may want to test the sound levels by TXing some > information between the two fldigi. > > Then start the Fldigi client, which will complain about not binding > with the client. Just ignore that and in the preferences go to the > modem tab then change the port number from 7322 to 7323 to match the > second Fldigi port above. > > You will have to save that configuration and restart the client to > make sure it is using the new port number. > > And that should be it. For cpu load management you can choose to > select "slow cpu" in the Fldigi configuration since you have trwo fo > them running, plus the server and client applications. > > 2. Use the "Jack" sound system in Ubuntu which allows you to create > pseudo sound channels and link them by software. It is more complex > but does not require a second sound card. Not tested here. > > > Concerning the adaptation to conditions and usage of different > waveforms, please download the beta version of server > (pskmail_server-1.0.alpha1.tar.gz) , client (jPSKmail-0.4.9.9) and > Fldigi (3.20 beta). You will see that we have created a list of modes > in increasing levels of robustness that are selected automatically by > the server depending on the quality of the link each way. > > We have also added new modes like the "robust" version of the PSK > modes so that we have a much better resistance to QRM and a better > sensitivity too. > > The interesting point there is that we adapt the mode independently in > RX and TX so that each side of the link is as close as possible to > it's optimal speed. So you could very well have a server TXing in > PSK500R and RXing in MFSK32 for example which is great for mobile > conditions where you could have either QRP operations or compromise > antennas or simply because of local QRM/QRN. > > For live tests, if you can't find local OMs, then I am sure if you > choose the right band (like probably 20M) you should be able to be > reachable from North American and you could ask some OMs to test your > server. Modes like MFSK16 and THOR22 and certainly the slow THOR8 > provide good long distance link-ups in marginal conditions. We had > positive results with a pacific island at 2500KM from here on 20M. > > Good luck, > > Best 73s, > > John (VK2ETA) > > On Fri, Mar 12, 2010 at 6:24 AM, karel Fassotte > <karel.fassotte@xxxxxxxxx> wrote: > > Hello all, I have been experimenting a lot with puppypskmail live CD and > HD > > install. > > All now works reasonably well, but I have had some serious problems. > > Although the pc I use for the experiments complies with specifications, > > processor speed (1.7Ghz.) and Ram (1.3GB) the pc froze as soon as I tried > to > > configure FLDGI. I started to dismantle the machine. It had a video card > > installed and as soon as I took out this card puppy stabilized. I also > had > > some problems installing the puppy live pskmail to HD. If something goes > > wrong saving the puppy safe file, it is difficult to get rid of the files > > puppy installes to the HD. I needed Knoppix to delete the files safed in > the > > HD. It is not very wise to let puppy use the part of a windows system > > partition i found out the hard way. Windows crashed afterwards, so I had > to > > remove with care all safed puppy files form the HD. Finaly It worked ok. > > Conclusions using live Cd's. I think its not a very good solution if you > > want to use PSKmail as a server to use puppy pskmail server. > > I now am installing Ubuntu to see it this renders a stable solution for > the > > server. > > > > By the way, can somebody explain how to check the server without having 2 > > PC's, a client and the server. How can I see what the server is doing? > > > > I'am very glad with the effort being made by others, to obtain a really > nice > > communication, messaging system. The way Rein painted the future of the > > system is intelligent. If the system could work with different waveforms > for > > different situations and propagation conditions, also have a sort of ALE, > > evaluating the propagation that would be realy neat. > > > > I hope te get a server into place over the next weeks. I dont have many > > resources and I am working completly alone overhere in Ecuador, so no one > to > > test with. It seems nobody in Latin america is doing digital, all there > is > > is some RTTY and voice chat. > > > > 73 > > Karel > > HC1AKP / PE2KFA > > > >