Sound card calibration and frequency accuracy is more important on some modes both of which may explain the lack of connect at the slower modes. 73 Roger G6CKR On 10/01/12 15:49, Rein Couperus wrote: > What we see a lot is multipath during mid-day, giving rithmic, deep QSB > up to 80 dB down. > The server will downgrade the link until it reaches the lowest requested > mode, > and also reduces the block length. > If that does not work the server sends 2 disconnects and stops the > session... > The number of polls is configurable on the server, we use a number of 10 to > let the session survive a pactor or ALE QRM session starting on top of a > running connection. > > The client can decide which modes to use for the session. We added the > MFSK and THOR > modes for multipath and NVIS conditions. > It pays to use different mode tables for different conditions. > Slow modes are not always the right answer, I use MFSK16 as the slowest > mode, > and I often use THOR22 to connect.... > > The 14 MHz frequency is pretty stable during the time 10 MHz cannot be > used... > That is why we introduced scanning in 2006... > Don't forget to pick the right time and the right frequency, we did not > yet implement > the cognitive radio stuff.... > > I use 5 Watts to connect SM0RWO on 10 MHz, and it works most of the time. > > Rein PA0R > > > > > Hi Robert, > > What you describe on the PSKMail connection, is what I have > expierenced many times with your server and also with the AB9FT server. > > I have on many occasions seen a gradual deterioration of the link. > It goes asymmetric with the server still in a faster mode, and my > client stuck in one of the lower speed modes, to the point that > everything just freezes up there. > Seems like this is part of the problem with PSKMail. > There seems to be no automatic disconnect signal like with Winmor, > when conditions deteriorate to the point of oblivion. (I think > Winmor sends a double disconnect signal and an ID.) > So the connection on PSKMail just deteriorates, then hangs there in > silence, waiting for who knows what. > I think this could also be partly due to the peculiarity of the 30 M > band. > It behave much differently from say the 20M and 40M bands, > I can say this from observation and experience as an HF band Ham for > the past 30 years. > The 30 band will presently suddenly cut off completely, then come on > again 30 minutes later. > In the US at least, the 20M and 40 M bands are very predictable most > of the time, with good propagation during all of the morning, and > then again later in the afternoon and > evening. > > Just my observation with some good time on playing with PSKMail 1.5 > and the KB2PNM > and AB9FT servers from Chicago. (I have not had any response from > the other servers after multiple pinging during the past few days.) > > 73, > Bernard > KC9SGV / ZS4BDK > Chicago > > > > On Tue, Jan 10, 2012 at 6:11 AM, Robert Krasowski > <rkrasowski@xxxxxxxxx <mailto:rkrasowski@xxxxxxxxx>> wrote: > > We had some problems yesterday with PSKmail, first we talk on > SSB for 45 min, conditions were great. But later when we switch > into PSKmail I was able to hear them great, but for some reason > Client didi not responded into server response. I could't do > anything about it since they did not hear me. But during the > night they were able to exchange some emails so must recognized > and fix the problem. Will know today what was the issue. > Darrel, they are in the middle of Atlantic, not in Poland , so > not that far but still quite good. > Best regards toi all > Robert > KB2PNM > > --- On *Mon, 1/9/12, John Douyere /<vk2eta@xxxxxxxxx > <mailto:vk2eta@xxxxxxxxx>>/* wrote: > > > From: John Douyere <vk2eta@xxxxxxxxx <mailto:vk2eta@xxxxxxxxx>> > Subject: [pskmail] Re: Good Conditions > To: pskmail@xxxxxxxxxxxxx <mailto:pskmail@xxxxxxxxxxxxx> > Date: Monday, January 9, 2012, 10:34 PM > > > Hi Darrel, > > Yes, nice log. > > I noticed the failed attempts at connections to Robert's > server (KB2PNM). > > Robert, > > It looks like the client does not hear the server's connect > acknowledgement (since the connect is received and acted > upon AND the > client's status reply required to confirm the connection is > much more > likely to success than a long connect frame). > > I would recommend SQ2OAZ tries to connect with something > like THOR22 > or MFSK16, and let the server adjust the speed up if possible. > > But of course how to let him know if he does not connect to > his email > (APRS messages maybe?). > > Regards, > > John > > > On Tue, Jan 10, 2012 at 1:13 PM, <ve7cus@xxxxxxx > <http://mc/compose?to=ve7cus@xxxxxxx>> wrote: > > I had an interesting capture on my station on the west > coast of N.A. this afternoon. > > > > Darrel, VE7CUS > > > > 16:01:21 <SOH>00uSQ2OAZ:6 (93u8'c Y 83C1<EOT> > > 16:02:54 <SOH>1!kKB2PNM:24 SQ2OAZ:1024 57CAF<SOH> > > 16:02:54 SQ2OAZ<>KB2PNM: <SOH>7!s 16BB<EOT> > > 16:03:17 SQ2OAZ<>KB2PNM: <SOH>1!kKB2PNM:24 SQ2OAZ:1024 > 57CAF<SOH> > > 16:03:19 SQ2OAZ<>KB2PNM: <SOH>7!s 16BB<EOT> > > 16:07:01 <SOH>1"kKB2PNM:24 SQ2OAZ:1024 53750<SOH> > > 16:07:04 SQ2OAZ<>KB2PNM: <SOH>7"s 16FF<EOT> > > 16:16:14 <SOH>1$kKB2PNM:24 SQ2OAZ:1024 5A0AE<SOH> > > 16:16:15 SQ2OAZ<>KB2PNM: <SOH>7$s 1677<EOT> > > 16:17:24 SQ2OAZ<>KB2PNM: <SOH>1$kKB2PNM:24 SQ2OAZ:1024 > 5A0AE<SOH> > > 16:17:25 SQ2OAZ<>KB2PNM: <SOH>7$s 1677<EOT> > > 16:18:29 <SOH>00uAB9FT:71 73 4E93<EOT> > > From AB9FT: 73% > > 16:19:08 <SOH>00uSQ2OAZ:7 B685<EOT> > > =4904.13N/12305.39WMXASTIR-Linux > > 16:20:10 <SOH>00uSQ2OAZ:7 B685<EOT> > > 16:23:19 <SOH>1%kKB2PNM:24 SQ2OAZ:1024 559FA<SOH> > > 16:23:20 SQ2OAZ<>KB2PNM: <SOH>7%s D64A<EOT> > > 16:23:39 SQ2OAZ<>KB2PNM: <SOH>1%kKB2PNM:24 SQ2OAZ:1024 > 559FA<SOH> > > 16:23:40 SQ2OAZ<>KB2PNM: <SOH>7%s D64A<EOT> > > 16:26:07 <SOH>00uSQ2OAZ:6 I7@=9Xm4'Y D0E8<EOT> > > 16:32:12 <SOH>10cSQ2OAZ:1024 KB2PNM:24 885b4321AA0F<EOT> > > 16:33:06 SQ2OAZ<>KB2PNM: <SOH>1!kKB2PNM:24 SQ2OAZ:1024 > 57CAF<SOH> > > 16:33:06 SQ2OAZ<>KB2PNM: <SOH>7!s 16BB<EOT> > > 16:33:31 SQ2OAZ<>KB2PNM: <SOH>1!kKB2PNM:24 SQ2OAZ:1024 > 57CAF<SOH> > > 16:33:32 SQ2OAZ<>KB2PNM: <SOH>7!s 16BB<EOT> > > 16:33:51 SQ2OAZ<>KB2PNM: <SOH>1!kKB2PNM:24 SQ2OAZ:1024 > 57CAF<SOH> > > 16:33:52 SQ2OAZ<>KB2PNM: <SOH>7!s 16BB<EOT> > > 16:38:01 <SOH>00uSQ2OAZ:7 B685<EOT> > > 16:38:08 <SOH>00uAB9FT:71 77 8E91<EOT> > > From AB9FT: 77% > > 16:38:33 <SOH>00uSQ2OAZ:7 B685<EOT> > > 16:39:22 <SOH>10cSQ2OAZ:1024 KB2PNM:24 885b4321AA0F<EOT> > > 16:40:47 SQ2OAZ<>KB2PNM: <SOH>7"s 16FF<EOT> > > 16:41:33 SQ2OAZ<>KB2PNM: <SOH>1"kKB2PNM:24 SQ2OAZ:1024 > 53750<SOH> > > 16:41:33 SQ2OAZ<>KB2PNM: <SOH>7"s 16FF<EOT> > > 16:42:18 SQ2OAZ<>KB2PNM: <SOH>1"kKB2PNM:24 SQ2OAZ:1024 > 53750<SOH> > > 16:42:19 SQ2OAZ<>KB2PNM: <SOH>7"s 16FF<EOT> > > 16:46:01 <SOH>00uSQ2OAZ:6 I7>69Z4.(Y 35AA<EOT> > > > > > > >