Yes, that is the only advantage. It gives you the full panadapter bandwidth with the IF at the center.
Gerald Gerald Youngblood, K5SDR President and CEO FlexRadio Systems(TM) 13091 Pond Springs Road, #250 Austin, TX 78729 Phone: 512-535-4713 Ext. 202 Email: ger...@flex-radio.com Web: www.flex-radio.com Tune In Excitement (TM) PowerSDR(TM) is a trademark of FlexRadio Systems On Sat, Jul 10, 2010 at 9:15 AM, George Steube <a...@bellsouth.net> wrote: > Gerald, > Is the only advantage of doing this centering the carrier in the > panadapter? > Thanks. > George > W2GS > > -----Original Message----- > From: flexradio-boun...@flex-radio.biz > [mailto:flexradio-boun...@flex-radio.biz]on Behalf Of Gerald Youngblood > Sent: Saturday, July 10, 2010 9:01 AM > To: DL1FUX > Cc: flexradio@flex-radio.biz > Subject: Re: [Flexradio] PSDR 2.0.x and Flex 1500: Why IF 9000 or 5000 > kHzand not 0 kHz? > > > I set mine to +/- 200 Hz (depending on sideband in use) and turn SR off. > That works fine on all modes until you flip sidebands so that you need to > reverse the sign of the offset. We are planning to make this automatic in > an upcoming release. > > Gerald > > > Gerald Youngblood, K5SDR > President and CEO > FlexRadio Systems(TM) > 13091 Pond Springs Road, #250 > Austin, TX 78729 > Phone: 512-535-4713 Ext. 202 > Email: ger...@flex-radio.com > Web: www.flex-radio.com > > Tune In Excitement (TM) > > PowerSDR(TM) is a trademark of FlexRadio Systems > > > On Sat, Jul 10, 2010 at 8:04 AM, DL1FUX <dl1...@darc.de> wrote: > > > Hi, > > > > PSDR 2.0.x is set tu IF 9.000 kHz. > > The additional paper to the Flex 1500 says you can set it to 5.000 kHz to > > move the red carrier-line more to the middle of the panadapter. > > > > If I set it to 0 kHz it then IS in the middle. Why not set it to 0 kHz? > Is > > there any problem with this? > > > > 73, martin dl1fux > > > > > > > > Am 03.08.2010 21:59, schrieb Rod Brink: > > > >> Am having problems operating a SDR-1000 in ESSB mode into my new Alpha > >> 8410. The amp frequently faults on voice peaks in spite of a much > reduced > >> drive level. I looked at my peak power into the amp using a fast > >> peak-reading wattmeter (LP100A). Most of the time the power peaks are > in > >> the 10-15 watt range, but on some words the peaks are much higher, 30-40 > >> watts. I turned up the mic gain to get 0 dB ALC readings and turned > down > >> the drive to compensate, thinking that would resolve the problem. It > helped > >> but didn't completely do the trick. Next I decreased the ALC attack > time > to > >> 1 ms. That doesn't help either, nor does changing the ALC Decay and > Hang > >> times. > >> > >> The Alpha fault-detection circuits are very fast acting. I complained > to > >> them about it, but to no avail. They seem to think it should be that > way. > >> > >> As a matter of personal preference, am running an earlier version of > PSDR > >> (v. 1.12.1). Have any improvements been made to ALC in subsequent > versions? > >> > >> 73, > >> Rod KQ6F > >> > >> _______________________________________________ > >> 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/
