These type of comments,ideas, suggestions emphasize my urging that the FlexTeam must issue a more thorough PowerSDR user manual that explains stuff like this. I realize the manual might be +300 pages, but I need to read and understand like many others do !!
On Mon, Feb 21, 2011 at 6:14 PM, Tim Ellison <telli...@itsco.com> wrote: > > I am replying to both lists (yes, I know that is not allowed, but this is > important) since I have had this question asked several times. > > They entire behavior of the digital mode RX filters has changed. Other > than changing the filter widths to something more usable for narrow band > digital modes (as opposed to using phone filter widths) the center frequency > (CF) of the filters is determined by the DIGx Click Tune offsets > (Setup->General->Options). You can change the filter width to whatever you > want, but the CF is always the same as the Digi Mode Click Tune offset > value. > > This is best explained as an example. > > Example: > > DIGU is set for a 1500 Hz click tune / filter offset by default > > The 1.0k filter (500 Hz on either side of its center frequency) has a high > cut of 1500 Hz + 500Hz = 2K above the VFO frequency readout and a low cut of > 1500 Hz - 500 Hz = 1K below the VFO frequency readout. > > If you go and change the Click Tune / Filter Offsets to say 1000 Hz, then > the filters auto re-align to the new center frequency and the 1.0k filter > now has a high cut of 1500 Hz and a low cut of 500 Hz. > > Now if you click tune a digital signal in the Panadapter when in DIGx, it > is ALWAYS centered in your RX filter no matter the filter bandwidth because > the signal of interest is offset by the same amount as the filter's center > frequency. > > To determine if you have the new RX preset filter settings, enable either > DIGx mode see if the smallest RX filter is 75 Hz. If not then you will have > to right click on a filter option and reset back to the defaults. > > -Tim > > From: Ernest Garcia [mailto:w...@hotmail.com] > Sent: Monday, February 21, 2011 5:52 PM > To: Tim Ellison > Subject: DIGL/DIGU Settings > > Tim, > > Where are these setting? > > "the only new default settings that would be lost by > using SDRDataTransfer to transfer settings from an old database are Tim's > spiffy new default filter settings for DIGL & DIGU." Ray, K9DUR > > I mainly do digital and I like to give then a try and see the difference > between yours and mine. > > 73, Ernest > > _______________________________________________ > 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.flexradio.com/ Homepage: > http://www.flexradio.com/ > -- You cannot change history, but you can make history! Education is the only legal cure for stupidity. _______________________________________________ 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.flexradio.com/ Homepage: http://www.flexradio.com/
