Re: [Flexradio] Front panel rf-af
Assuming none of the DSP functions are enabled (NR, NB, NB2, etc), then I would guess that the difference is the default Max AGC Gain (also known as RF Gain on the front panel). There is nothing really to change about the Preamp itself. It consists of a Sirenza hardware Preamp and a 10dB attenuator. Each of these 2 devices has 2 states for a combination of the 4 settings you see on the display. Each device is either on or off though, so short of a hardware failure, the preamp itself performs the same today as it did the day we installed it. Eric Wachsmann FlexRadio Systems > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: Friday, September 22, 2006 4:11 PM > To: Eric Wachsmann > Cc: [EMAIL PROTECTED]; flexradio@flex-radio.biz > Subject: RE: [Flexradio] Front panel rf-af > > > The defaults have changed on quite a few things since the 1.4.5 days. > For > > a > > side by side comparison, you really would need to import the database > (or > > use the tool on our download page to perform a similar operation). > > > > > > Eric Wachsmann > > FlexRadio Systems > > > > I'm not really sure that would tell me very much. > > Can you simply guess, in 25 words or less, what changes would have made it > so that when I change from high to med to low to off that I don't hear any > sharp fall off in output? > > I like the old behavior, assuming this is more than just a nicety about > what my ears hear, especially for RTTY, but I don't relish the > pre-really-good-fix CW nor the old "binural" bug, both of which are long > since fixed of course. > > > Larry WO0Z ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Front panel rf-af
> The defaults have changed on quite a few things since the 1.4.5 days. For > a > side by side comparison, you really would need to import the database (or > use the tool on our download page to perform a similar operation). > > > Eric Wachsmann > FlexRadio Systems > I'm not really sure that would tell me very much. Can you simply guess, in 25 words or less, what changes would have made it so that when I change from high to med to low to off that I don't hear any sharp fall off in output? I like the old behavior, assuming this is more than just a nicety about what my ears hear, especially for RTTY, but I don't relish the pre-really-good-fix CW nor the old "binural" bug, both of which are long since fixed of course. Larry WO0Z ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Front panel rf-af
The defaults have changed on quite a few things since the 1.4.5 days. For a side by side comparison, you really would need to import the database (or use the tool on our download page to perform a similar operation). Eric Wachsmann FlexRadio Systems > -Original Message- > From: Larry Loen [mailto:[EMAIL PROTECTED] > Sent: Thursday, September 21, 2006 9:57 PM > To: Eric Wachsmann > Cc: flexradio@flex-radio.biz > Subject: Re: [Flexradio] Front panel rf-af > > Anyone else hearing what I'm hearing? It really does sound different to > me, at least. > > Did something else change? Shapes of the skirts on the filters? > Default noise blanking settings? I have long simply taken the > defaults on all this stuff and it never did me wrong. > > I used 1.4.5 for a long time. > > Eric Wachsmann wrote: > > >Larry, > > > >We haven't changed the functionality. Perhaps the default Max Gain > setting > >is different. But there is nothing I can think of that would cause the > >preamp settings to operate differently short of the Max AGC Gain > settings. > > > > > >Eric Wachsmann > >FlexRadio Systems > > > > > > > >>-Original Message- > >>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > >>Sent: Thursday, September 21, 2006 4:11 PM > >>To: Eric Wachsmann > >>Cc: flexradio@flex-radio.biz > >>Subject: Re: [Flexradio] Front panel rf-af > >> > >> > >> > >>>Hovering over the control will give you a good explanation. The RF > Gain > >>>is > >>>essentially controlling the Max AGC Gain while the AF Gain actually is > a > >>>gain control on the output audio from the DSP. > >>> > >>> > >>>Eric Wachsmann > >>>FlexRadio Systems > >>> > >>> > >>This brings up a question I've been meaning to ask -- what, exactly, has > >>been going on with the receiver sound? > >> > >>Well before the current 1.6.2, when I set the "preamp" to Off or Low or > >>Med or High, there was a distinct audio difference between them. > >> > >>Starting with 1.6.2 (probably before, I don't do all betas these days > and > >>made little use of 1.6.1), the differences are far less distinct to my > >>ear. > >> > >>I do note that when I play with the "RF Gain" control on recent betas, > >>that if I set it at "about" 80 per cent, I get something that "sounds > >>like" the way it used to sound and at 100 per cent, it sounds about like > >>1.6.2 in terms of preamp settings. > >> > >>I kind of prefer the sharper delineations, though I don't know if, > >>objectively, it really alters the performance the way it used to. In > the > >>old version of it, reducing from high to medium to low and (on RTTY) > >>sometimes to off really make a marked difference in signal to noise even > >>if the sound itself came down a bit. > >> > >>I know there was a lot of discussion of all of this, but what I > >>experienced is still not quite what all those discussions (to the extent > I > >>read or understood them) would have lead me to believe. > >> > >>Do I want the old behavior? If so, how do I get it? Or, is there > >>something about how the AGC now works that I get the S/N advantages, but > >>more audio after all? Would this answer be the same for RTTY work (of > >>which I've done less of late, but really used the sharp delineations to > >>manage reception quite effectively)? > >> > >>Larry WO0Z > >> > >> > > > > > > > > > > > > ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Front panel rf-af
Anyone else hearing what I'm hearing? It really does sound different to me, at least. Did something else change? Shapes of the skirts on the filters? Default noise blanking settings? I have long simply taken the defaults on all this stuff and it never did me wrong. I used 1.4.5 for a long time. Eric Wachsmann wrote: >Larry, > >We haven't changed the functionality. Perhaps the default Max Gain setting >is different. But there is nothing I can think of that would cause the >preamp settings to operate differently short of the Max AGC Gain settings. > > >Eric Wachsmann >FlexRadio Systems > > > >>-Original Message- >>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >>Sent: Thursday, September 21, 2006 4:11 PM >>To: Eric Wachsmann >>Cc: flexradio@flex-radio.biz >>Subject: Re: [Flexradio] Front panel rf-af >> >> >> >>>Hovering over the control will give you a good explanation. The RF Gain >>>is >>>essentially controlling the Max AGC Gain while the AF Gain actually is a >>>gain control on the output audio from the DSP. >>> >>> >>>Eric Wachsmann >>>FlexRadio Systems >>> >>> >>This brings up a question I've been meaning to ask -- what, exactly, has >>been going on with the receiver sound? >> >>Well before the current 1.6.2, when I set the "preamp" to Off or Low or >>Med or High, there was a distinct audio difference between them. >> >>Starting with 1.6.2 (probably before, I don't do all betas these days and >>made little use of 1.6.1), the differences are far less distinct to my >>ear. >> >>I do note that when I play with the "RF Gain" control on recent betas, >>that if I set it at "about" 80 per cent, I get something that "sounds >>like" the way it used to sound and at 100 per cent, it sounds about like >>1.6.2 in terms of preamp settings. >> >>I kind of prefer the sharper delineations, though I don't know if, >>objectively, it really alters the performance the way it used to. In the >>old version of it, reducing from high to medium to low and (on RTTY) >>sometimes to off really make a marked difference in signal to noise even >>if the sound itself came down a bit. >> >>I know there was a lot of discussion of all of this, but what I >>experienced is still not quite what all those discussions (to the extent I >>read or understood them) would have lead me to believe. >> >>Do I want the old behavior? If so, how do I get it? Or, is there >>something about how the AGC now works that I get the S/N advantages, but >>more audio after all? Would this answer be the same for RTTY work (of >>which I've done less of late, but really used the sharp delineations to >>manage reception quite effectively)? >> >>Larry WO0Z >> >> > > > > > ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Front panel rf-af
Larry, We haven't changed the functionality. Perhaps the default Max Gain setting is different. But there is nothing I can think of that would cause the preamp settings to operate differently short of the Max AGC Gain settings. Eric Wachsmann FlexRadio Systems > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: Thursday, September 21, 2006 4:11 PM > To: Eric Wachsmann > Cc: flexradio@flex-radio.biz > Subject: Re: [Flexradio] Front panel rf-af > > > Hovering over the control will give you a good explanation. The RF Gain > > is > > essentially controlling the Max AGC Gain while the AF Gain actually is a > > gain control on the output audio from the DSP. > > > > > > Eric Wachsmann > > FlexRadio Systems > > This brings up a question I've been meaning to ask -- what, exactly, has > been going on with the receiver sound? > > Well before the current 1.6.2, when I set the "preamp" to Off or Low or > Med or High, there was a distinct audio difference between them. > > Starting with 1.6.2 (probably before, I don't do all betas these days and > made little use of 1.6.1), the differences are far less distinct to my > ear. > > I do note that when I play with the "RF Gain" control on recent betas, > that if I set it at "about" 80 per cent, I get something that "sounds > like" the way it used to sound and at 100 per cent, it sounds about like > 1.6.2 in terms of preamp settings. > > I kind of prefer the sharper delineations, though I don't know if, > objectively, it really alters the performance the way it used to. In the > old version of it, reducing from high to medium to low and (on RTTY) > sometimes to off really make a marked difference in signal to noise even > if the sound itself came down a bit. > > I know there was a lot of discussion of all of this, but what I > experienced is still not quite what all those discussions (to the extent I > read or understood them) would have lead me to believe. > > Do I want the old behavior? If so, how do I get it? Or, is there > something about how the AGC now works that I get the S/N advantages, but > more audio after all? Would this answer be the same for RTTY work (of > which I've done less of late, but really used the sharp delineations to > manage reception quite effectively)? > > Larry WO0Z ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Front panel rf-af
> Hovering over the control will give you a good explanation. The RF Gain > is > essentially controlling the Max AGC Gain while the AF Gain actually is a > gain control on the output audio from the DSP. > > > Eric Wachsmann > FlexRadio Systems This brings up a question I've been meaning to ask -- what, exactly, has been going on with the receiver sound? Well before the current 1.6.2, when I set the "preamp" to Off or Low or Med or High, there was a distinct audio difference between them. Starting with 1.6.2 (probably before, I don't do all betas these days and made little use of 1.6.1), the differences are far less distinct to my ear. I do note that when I play with the "RF Gain" control on recent betas, that if I set it at "about" 80 per cent, I get something that "sounds like" the way it used to sound and at 100 per cent, it sounds about like 1.6.2 in terms of preamp settings. I kind of prefer the sharper delineations, though I don't know if, objectively, it really alters the performance the way it used to. In the old version of it, reducing from high to medium to low and (on RTTY) sometimes to off really make a marked difference in signal to noise even if the sound itself came down a bit. I know there was a lot of discussion of all of this, but what I experienced is still not quite what all those discussions (to the extent I read or understood them) would have lead me to believe. Do I want the old behavior? If so, how do I get it? Or, is there something about how the AGC now works that I get the S/N advantages, but more audio after all? Would this answer be the same for RTTY work (of which I've done less of late, but really used the sharp delineations to manage reception quite effectively)? Larry WO0Z ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] Front panel rf-af
Hovering over the control will give you a good explanation. The RF Gain is essentially controlling the Max AGC Gain while the AF Gain actually is a gain control on the output audio from the DSP. Eric Wachsmann FlexRadio Systems > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > radio.biz] On Behalf Of Paul Shaffer > Sent: Wednesday, September 20, 2006 11:17 PM > To: flexradio@flex-radio.biz > Subject: [Flexradio] Front panel rf-af > > The "rf" control is new and not covered the manual. > What is the difference between rf and af in receive mode? ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
[Flexradio] Front panel rf-af
The "rf" control is new and not covered the manual. What is the difference between rf and af in receive mode? ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
