Hi Bob, I believe this explains the situation with Skimmer and SR:
When PowerSDR is tuned with SR on, the I/Q passband doesn't shift accordingly. It stays fixed. Instead, the decode point in the passband is shifted. This is equivalent to a small change in IF relative to VFO. But Skimmer is looking at the I/Q passband. It sees the VFO frequency change, and expects the radio to be tuned to that point in the passband relative to the fixed IF and CW offsets. The SR shift is not taken into account. Skimmer gets the VFO frequency from CAT. The IF frequency is set to a fixed value in the Skimmer setup. To get Skimmer to track PowerSDR with SR on, we would have to be able to change the IF value set in Skimmer dynamically. So far there is no mechanism existing or planned to do that. 73 Ed W2RF > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > radio.biz] On Behalf Of Bob McGwier > Sent: Friday, December 05, 2008 10:56 AM > To: [EMAIL PROTECTED]; flexradio@flex-radio.biz > Subject: Re: [Flexradio] CW Skimmer.....Again! > > That is a bandaid, and not a real fix. Now you are forced to send high > speed retuning commands as you dial through the band. The problem is the > software offset is not being shared properly in the interop with > CWSkimmer. > This is a bug, most likely in the interface program and needs to be fixed. > > Bob > > > ARRL SDR Working Group Chair > Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, > NJQRP, QRP ARCI, QCWA, FRC. > "And yes I said, yes I will Yes", Molly Bloom > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Joel Harrison > Sent: Friday, December 05, 2008 9:31 AM > To: flexradio@flex-radio.biz > Subject: Re: [Flexradio] CW Skimmer.....Again! > > > > OK...CW Skimmer problem solved here at W5ZN. > > Ed, N5DG, just dropped me a note and said to make sure spur reduction is > not > checked. > > It was. > > As soon as I "unchecked" it everything is working FB. > > I don't recall seeing this in the write up on the Flex site, so whoever > has > access and control to that may want to put a note in there about SR. > > No I have the question of what is it with SR that causes this problem. I > have been told to run SR on CW. It is confusing to me so I need to do some > study, but obviously you can't run SR on CW if you are going to run CWS. > > Anyway, as usual many, many thanks to everyone for their help and mucho > thanks to Ed once again (he got me going initially with Skimmer) for his > help. > > 73 Joel W5ZN > > > -----Original Message----- > From: Neal Campbell [mailto:[EMAIL PROTECTED] > Sent: Friday, December 05, 2008 7:31 AM > To: Joel Harrison > Cc: flexradio@flex-radio.biz > Subject: Re: [Flexradio] CW Skimmer.....Again! > > Hi Joel > > Are you using CW-L? If so I think you have to set the IF freq in Skimmer > at > 6400 for it to work correctly. I was having similar problems until Ed set > me > straight! > > 73 > Neal k3nc > Neal Campbell > Abroham Neal Software > Programming Services for Windows, OS X and Linux > (540) 242 0911 > --------------------------------------------------------------------- > Try Spot for OS X, the intelligent DXCluster Client at > www.abrohamnealsoftware.com - $15.99 > ------------------------------------------------- > For a great dog book, visit www.abrohamneal.com > ------------------------------------------------- > See the FlexRadio Systems Flex-5000a in > action at www.flex-videos.com > > > > > On Fri, Dec 5, 2008 at 7:46 AM, Joel Harrison <[EMAIL PROTECTED]> wrote: > > A few days ago Gary, W7FG, posted a problem to the group that he was > > having with CW Skimmer. I originally have had CW Skimmer working great > > here with PowerSDR, however as of late I am having issues with it to > > the point I am about to throw in the Skimmer towell. > > > > The specific problem is this: > > > > The frequency readout on PowerSDR and CWSkimmer are the same. If I > > change frequency they both track and agree and are correct. I can see > > stations on the CWSkimmer display, they are decoded and all is > > fine...except that the frequency where the station is shown on the > > vertical frequency scale on the right side in the Skimmer display is > > off by more than 3 KHz...sometimes a lot more, and if I click on a > > station in the CWSkimmer disply, PowerSDR will change to that > > frequency and the digital frequency display window in Skimmer will > > change to that frequency also (same freq as displayed in PSDR), but > > that ain't where the station actually is. The stations traces moves > somewhere else when I click it. > > > > I've gone through the settings a hundred times on several different > > days, I've completely uninstalled Skimmer and reinstalled it, changed > > settings, rebooted, rechecked and recussed many times, so now I am > > seeking professional help. > > > > Any assistance and advice is greatly appreciated. All other 3rd party > > programs and applications work fine, PowerSDR is working fine, > > CWSkimmer is working, just the freq issue. > > > > My stuff: > > PowerSDR 1.14.0 > > CWSkimmer 1.3 > > VAC 4.09 > > Dell Quad Core Puter > > > > 73 Joel W5ZN > > _______________________________________________ > > FlexRadio Systems Mailing List > > FlexRadio@flex-radio.biz > > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > > Knowledge Base: http://kc.flex-radio.com/ Homepage: > > http://www.flex-radio.com/ > > > > > _______________________________________________ > FlexRadio Systems Mailing List > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > Knowledge Base: http://kc.flex-radio.com/ Homepage: > http://www.flex-radio.com/ > > > _______________________________________________ > FlexRadio Systems Mailing List > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex- > radio.com/ _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
