The digests apparently are sent when the amount of data (messages in bytes) reaches a certain amount, rather than simply sending once a day. This is something I found strange about the setup, but didn't see an option to make it daily, weekly or otherwise. If anyone has experience setting up mailman software, please chime in and point out the hidden option for us. We are relatively new at being Reflector admins. ;)
Eric Wachsmann FlexRadio Systems -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of PaulT(N3UD/VE3NUD) Sent: Friday, June 24, 2005 9:33 AM To: FlexRadio@flex-radio.biz Subject: [Flexradio] Many Digests Per Day How come there is sometimes many digests per day and not just one per day? Regards, Paul -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Friday, June 24, 2005 10:28 AM To: FlexRadio@flex-radio.biz Subject: FlexRadio Digest, Vol 2, Issue 79 Send FlexRadio mailing list submissions to FlexRadio@flex-radio.biz To subscribe or unsubscribe via the World Wide Web, visit http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than "Re: Contents of FlexRadio digest..." Today's Topics: 1. Setup here (Robert McGwier) 2. Who would miss the MixW virtual serial ports? (Bob Tracy) 3. Re: Observations on release 1.3.10 (Robert McGwier) 4. Re: Setup here (Robert McGwier) 5. Re: 13.10 Compandor (Frank Brickle) 6. RE: Linux/Windows hybrid ([EMAIL PROTECTED]) 7. Re: 13.10 Compandor (Frank Brickle) 8. Re: Linux/Windows hybrid (Robert McGwier) ---------------------------------------------------------------------- Message: 1 Date: Fri, 24 Jun 2005 13:30:23 +0000 From: Robert McGwier <[EMAIL PROTECTED]> Subject: [Flexradio] Setup here To: "[EMAIL PROTECTED] Biz" <flexradio@flex-radio.biz> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=ISO-8859-1; format=flowed I am listening to Don Imus and using tiny dsp and small audio buffers. Here are captures of my setup while I am listening right now. It is using 256 DMA buffers from D44. Your DMA buffers must be smaller than or equal to the smallest AUDIO (3rd panel down) or portaudio will not do the right thing. Not I am using 64 sample filters. I am spinning the DSP four times for each delivered audio buffer (2nd panel, DSP set to 64, 3rd pane, Audio set to 256). I ran the console on my Laptop using the Soundmax (PCI) and the Audigy 2 ZS, both using ASIO4ALL 2.6, released April 11 (it seems very solid). From the notices, it seems they fixed many significant issues that crept into 2.2 up to 2.5. Good luck with your setup. Bob N4HY ------------------------------ Message: 2 Date: Fri, 24 Jun 2005 08:32:22 -0500 From: "Bob Tracy" <[EMAIL PROTECTED]> Subject: [Flexradio] Who would miss the MixW virtual serial ports? To: <FlexRadio@flex-radio.biz> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="iso-8859-1" All, As most of you know, Phil Covington (N8VB), Bill Tracey (KD5TFD), and I have been working on the project to give the SDR-1000 virtual serial port and CAT command capabilities. Our earliest success, thanks mostly to Bill, was with the MixW Virtual Comm ports. Since then, Phil has come up with superior port software that I think most folks have switched to. Phil has a new version in the works that, with some changes in my CAT code, really speeds up the CAT command process. The problem is that it certainly will not be compatible with the MixW ports. THIS CHANGE WILL HAVE NO EFFECT ON USING THE MIXW PROGRAM ITSELF. It only means you will have to use Phil's serial ports. We would like to hear from anyone who feels this would be a serious inconvenience. 73, Bob K5KDN ------------------------------ Message: 3 Date: Fri, 24 Jun 2005 13:43:17 +0000 From: Robert McGwier <[EMAIL PROTECTED]> Subject: Re: [Flexradio] Observations on release 1.3.10 To: Steve Nance <[EMAIL PROTECTED]> Cc: FlexRadio@flex-radio.biz Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Steve: As its says in the release notes, the new keyer does not support the memory or keyboard modes. For these to work, you will need to go to the Setup->DSP panel and UNCHECK newkeyer. Click OK. It works now in the old keyer panel. This direction, New Keyer, going to old keyer seems pretty solid. There is one faux pas. When unchecking newkeyer, I forgot to stop the keyer timer. There is a bug in going from Old Keyer to New Keyer. This is because I forgot to START the keyer timer. I will get this sorted out today. When you go from Old Keyer to New Keyer, the semi break in does not work at all. You have to check New Keyer, click Apply/Ok. LEAVE THE CONSOLE and restart it. For those of you using the D44, you need to have TX out/Line Out going from outputs 3,4 going to Line Out on the radio. Outputs 1,2 go to the speaker. Then you have to have Mon turned on to get the sidetone. Bob Steve Nance wrote: > Kudos to the coding team, the new keyer is the best yet, defiantly > getting close. > > > > CW Defects: > > Keyer break in works good but the PTT line is never released. > > > > The other manual cw modes (keyboard, mouse) seem to be inoperative. > The PTT works but there is no output or side tone. > > > > In automatic cw modes there is no output from the keyboard or memory > buffers. > > > > 73, > > Steve - K5FR > > > > > >----------------------------------------------------------------------- - > >_______________________________________________ >FlexRadio mailing list >FlexRadio@flex-radio.biz >http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > > ------------------------------ Message: 4 Date: Fri, 24 Jun 2005 13:45:32 +0000 From: Robert McGwier <[EMAIL PROTECTED]> Subject: Re: [Flexradio] Setup here To: "[EMAIL PROTECTED] Biz" <flexradio@flex-radio.biz> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Darn it. The mailer stripped my screen captures. I sent them to Ken. Hopefully, he can get them onto Friends. Bob Robert McGwier wrote: > I am listening to Don Imus and using tiny dsp and small audio > buffers. Here > are captures of my setup while I am listening right now. It is using > 256 DMA > buffers from D44. Your DMA buffers must be smaller than or equal to the > smallest AUDIO (3rd panel down) or portaudio will not do the right thing. > Not I am using 64 sample filters. I am spinning the DSP four times > for each > delivered audio buffer (2nd panel, DSP set to 64, 3rd pane, Audio set > to 256). > > I ran the console on my Laptop using the Soundmax (PCI) and the Audigy > 2 ZS, > both using ASIO4ALL 2.6, released April 11 (it seems very solid). > From the > notices, it seems they fixed many significant issues that crept into > 2.2 up to 2.5. > > Good luck with your setup. > > Bob > N4HY > > > > > > > > > > > > > > > _______________________________________________ > FlexRadio mailing list > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > > ------------------------------ Message: 5 Date: Fri, 24 Jun 2005 10:07:32 -0400 From: Frank Brickle <[EMAIL PROTECTED]> Subject: Re: [Flexradio] 13.10 Compandor To: Jos? Dumoulin <[EMAIL PROTECTED]> Cc: 'FlexRadio' <Flexradio@Flex-radio.biz> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Since I wrote the compander and sneaked it into the DSP without telling anybody, I'll take some of the blame here :-) Appended, for those who care, is a little python program that lets you print out the companding function and plot it. The variable "factor" is the compression/expansion control. By default factor is 0, meaning no compansion. Negative values compress, positive expand. 73 Frank AB2KT Jos? Dumoulin wrote: > Bob, Eric, Gerald..... (Alphabetical order) > > F?licitations ! Historians will remember two (2) periods : before and > after the compandor. > 73 de Jos? - F5JD > > _______________________________________________ > FlexRadio mailing list > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > > #---------------------------------------------------------- #/usr/bin/env python import math from Numeric import * class WSCompander: def __init__(self, factor = 0, npts = 1024): self.npts = npts self.last = npts - 1 self.table = array(arange(0, npts), Float) self.ReCalc(factor) def ReCalc(self, factor): if factor == 0: for i in range(0, self.npts): self.table[i] = i / float(self.npts) else: delta = factor / float(self.last) scale = 1.0 - math.exp(factor) for i in range(0, self.npts): self.table[i] = (1.0 - math.exp(i * delta)) / scale def Compand(self, x): s = sign(x) if x < 0: x = -x d = x - int(x) j = int(x * self.npts) if j < self.last: k = j + 1 y = self.table[j] + d * (self.table[k] - self.table[j]) else: y = self.table[self.last] return s * y def main(): wsc = WSCompander(-4, 512) eps = 0.005 inp = arange(-1, 1 + eps / 2, eps, Float) out = map(wsc.Compand, inp) for i in range(0, len(inp)): print '%7.4f %7.4f' % (inp[i], out[i]) if __name__ == "__main__": main() ------------------------------ Message: 6 Date: Fri, 24 Jun 2005 15:16:03 +0100 From: [EMAIL PROTECTED] Subject: RE: [Flexradio] Linux/Windows hybrid To: FlexRadio@flex-radio.biz Message-ID: <[EMAIL PROTECTED] com> Content-Type: text/plain; charset="us-ascii" Great stuff Frank. I cut my teeth on Unix 25 years ago and really haven't touched it much since. It's amazing how much it's moved forward and yet stayed fundamentally the same. If only I didn't have to work for a living! I must admit not having looked at the dsp code yet but I did notice the named pipes for the display data, which I will need to hook into at some point. As my cat keeps saying 'so much time and so little to do' -- or should that be the other way round. Bob -----Original Message----- From: Frank Brickle [mailto:[EMAIL PROTECTED] Sent: 24 June 2005 15:01 To: [EMAIL PROTECTED] Subject: Re: [Flexradio] Linux/Windows hybrid Bob -- Bravo! > This is all going to be unashamedly pythonic. Works for me :-) > 6. I notice a lot of traffic on the list to do with virtual comms and > sound interfaces. I don't know but I think we possibly have other > options in linux. Could we use Jack for example to route samples > to other applications. That's exactly what you would do, and what it's for. In the Linux version there's a separate pair of controllable audion inputs, jack ports, that mix with the other inputs. The aux audio channels mix with the RX stream as *late* as possible, with the TX stream as *early* as possible. Over the next few days I will be adding another pair of ports for aux output, which will be tappable at different stages in the RX or TX chain. If you look at the scope/spectrum code, you'll see there's a long circular buffer of sample data which only gets processed and sent to a client on request, through a named pipe. This same sample data will be available as a continuous stream on the aux jack output ports. One other little utility coming shortly is a jack client that does nothing but downsample audio from 48k to 8k and convert to ulaw, or vice-versa. Should definitely ease the network burden. Should be pretty easy to incorporate other forms of audio compression and coding on this model. Great work, Bob. 73 Frank AB2KT *** Confidentiality Notice *** Proprietary/Confidential Information belonging to CGI Group Inc. and its affiliates may be contained in this message. If you are not a recipient indicated or intended in this message (or responsible for delivery of this message to such person), or you think for any reason that this message may have been addressed to you in error, you may not use or copy or deliver this message to anyone else. In such case, you should destroy this message and are asked to notify the sender by reply email. -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/flexradio_flex-radio.biz/attachments/20050624/dbcda014/attach ment-0001.htm ------------------------------ Message: 7 Date: Fri, 24 Jun 2005 10:29:45 -0400 From: Frank Brickle <[EMAIL PROTECTED]> Subject: Re: [Flexradio] 13.10 Compandor To: 'FlexRadio' <Flexradio@Flex-radio.biz> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=us-ascii; format=flowed BTW, question for anybody who can help. The compansion function is basically a bounded, single-quadrant version of f(x) = (1 - exp(x)) / (1 - exp(alpha)) mirrored into a second quadrant for x < 0, for compansion factor alpha. This kind of waveshaping is usually analyzed in terms of harmonic content. It would be great to be able to express the compansion in dB, but I don't have the first clue how to derive it, beyond integrating and scaling, and that doesn't yield anything intelligible so far. Any ideas? For what it's worth, the compander is nothing more than a tame fuzz box :-) 73 Frank AB2KT ------------------------------ Message: 8 Date: Fri, 24 Jun 2005 14:27:45 +0000 From: Robert McGwier <[EMAIL PROTECTED]> Subject: Re: [Flexradio] Linux/Windows hybrid To: [EMAIL PROTECTED] Cc: FlexRadio@flex-radio.biz Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=ISO-8859-1; format=flowed One other thing that Frank has added at my request is the ability to add arbitrary functions, ANY function that meets the API for it to the middle of the overlap save computation. This is step one in the block LMS, and all sorts of stuff that Linrad does and we can also add. This bit of cleverness will really begin to distinguish this from any other kind of radio. Sharpen your ""WHATEVER LANGUAGE YOU WANT" tools to roll your own function and get it into the dsp stream at the proper place in the frequency domain. We will add one to the time domain output of the demodulation as well. This will make it easy for you to add custom tasks and we the users can pick and choose from these add ons. Yuu can add an entire library of functions with your own control mechanism so long as the signal flows into and out of this API port(s). BRAVO FRANK. Bob [EMAIL PROTECTED] wrote: > Great stuff Frank. I cut my teeth on Unix 25 years ago and really > haven't touched it much since. It's amazing how much it's moved > forward and yet stayed fundamentally the same. > > If only I didn't have to work for a living! > > I must admit not having looked at the dsp code yet but I did notice > the named pipes for the display data, which I will need to hook into > at some point. As my cat keeps saying 'so much time and so little to > do' -- or should that be the other way round. > > Bob > > -----Original Message----- > From: Frank Brickle [mailto:[EMAIL PROTECTED] > Sent: 24 June 2005 15:01 > To: [EMAIL PROTECTED] > Subject: Re: [Flexradio] Linux/Windows hybrid > > Bob -- > > Bravo! > > > This is all going to be unashamedly pythonic. > > Works for me :-) > > > 6. I notice a lot of traffic on the list to do with virtual comms > and > > sound interfaces. I don't know but I think we possibly have other > > options in linux. Could we use Jack for example to route samples > > to other applications. > > That's exactly what you would do, and what it's for. > > In the Linux version there's a separate pair of controllable > audion inputs, jack ports, that mix with the other inputs. > The aux audio channels mix with the RX stream as *late* as > possible, with the TX stream as *early* as possible. > > Over the next few days I will be adding another pair of > ports for aux output, which will be tappable at different > stages in the RX or TX chain. If you look at the > scope/spectrum code, you'll see there's a long circular > buffer of sample data which only gets processed and sent to > a client on request, through a named pipe. This same sample > data will be available as a continuous stream on the aux > jack output ports. > > One other little utility coming shortly is a jack client > that does nothing but downsample audio from 48k to 8k and > convert to ulaw, or vice-versa. Should definitely ease the > network burden. Should be pretty easy to incorporate other > forms of audio compression and coding on this model. > > Great work, Bob. > > 73 > Frank > AB2KT > > **** Confidentiality Notice **** Proprietary/Confidential > Information belonging to CGI Group Inc. and its affiliates > may be contained in this message. If you are not a recipient > indicated or intended in this message (or responsible for > delivery of this message to such person), or you think for > any reason that this message may have been addressed to you > in error, you may not use or copy or deliver this message > to anyone else. In such case, you should destroy this > message and are asked to notify the sender by reply email. > >----------------------------------------------------------------------- - > >_______________________________________________ >FlexRadio mailing list >FlexRadio@flex-radio.biz >http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > > ------------------------------ _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz End of FlexRadio Digest, Vol 2, Issue 79 **************************************** _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
