Re: [Flexradio] Sampling rates greater than 48K question

[KD5NWA]

Hard to find? Come on Jim, we all know that Radio Shack carries 24bit 
10Gsp A/D converters with down sampling 50GHz Xilinx FPGA's for less 
than $20, and it you would have stopped by last week, you could have 
found out that they had them on sale for $7.95


I like the filament transformer idea, if you provide external high 
current terminals you could use the SDR-1000 as a arc-welder when the 
bands are crummy.


At 10:39 PM 2/23/2006, Jim Lux wrote:


At 06:22 PM 2/23/2006, KD5NWA wrote:

Good start but they are way too small, most use .1uF for 48KHz.

At 07:23 PM 2/23/2006, you wrote:

>Like these?
>
>http://www.intersil.com/data/fn/FN8156.pdf
>
>http://www.electronicstalk.com/news/xic/xic125.html
>
>What would the QSD capacitance values be for 48k, 96k and 192K sampling
>rates?
>


Creeping functionality strikes...

Actually, you'd probably do it with a decent CMOS switch (although a 
manky old 4066 you find on the floor under the bench might work) 
switching discrete caps.


However, now you've added some number of parts, which, frankly, 
you'd have a hard time fitting on the board, etc.


Why not put a stepper motor driving a slug of ferrite cores in an 
preselector inductor while you're at it, and, maybe the filament 
supply for your 8877 linear, etc.


Why not just buy two SDR1000s (the receiver only version for the 
second one) and tune it in an overlapping band?  Better dynamic 
range (because you've got half the BW into each A/D), and with the 
future software, the "receiver" is an abstract thing (which could be 
implemented as one wideband receiver or multiple narrow band 
receivers) generating an audio stream that goes to the audio mixer.


The only case where it would be easier (but not necessarily better) 
would be if you have a single signal you want to handle that is 
wider than the receiver will handle (sure, you want to demodulate 
that several hundred kHz wide spread spectrum signal), and even 
there, state of the art IS to use multiple narrower converters 
(because it's just plain hard to find a 16 bit 10 GSPS A/D, and the 
DSP behind on it).







Cecil Bayona
KD5NWA
www.qrpradio.com

"Windows the worlds most successful software virus" 

Re: [Flexradio] Sampling rates greater than 48K question

[Jim Lux]

At 06:22 PM 2/23/2006, KD5NWA wrote:

Good start but they are way too small, most use .1uF for 48KHz.

At 07:23 PM 2/23/2006, you wrote:

>Like these?
>
>http://www.intersil.com/data/fn/FN8156.pdf
>
>http://www.electronicstalk.com/news/xic/xic125.html
>
>What would the QSD capacitance values be for 48k, 96k and 192K sampling
>rates?
>


Creeping functionality strikes...

Actually, you'd probably do it with a decent CMOS switch (although a manky 
old 4066 you find on the floor under the bench might work) switching 
discrete caps.


However, now you've added some number of parts, which, frankly, you'd have 
a hard time fitting on the board, etc.


Why not put a stepper motor driving a slug of ferrite cores in an 
preselector inductor while you're at it, and, maybe the filament supply for 
your 8877 linear, etc.


Why not just buy two SDR1000s (the receiver only version for the second 
one) and tune it in an overlapping band?  Better dynamic range (because 
you've got half the BW into each A/D), and with the future software, the 
"receiver" is an abstract thing (which could be implemented as one wideband 
receiver or multiple narrow band receivers) generating an audio stream that 
goes to the audio mixer.


The only case where it would be easier (but not necessarily better) would 
be if you have a single signal you want to handle that is wider than the 
receiver will handle (sure, you want to demodulate that several hundred kHz 
wide spread spectrum signal), and even there, state of the art IS to use 
multiple narrower converters (because it's just plain hard to find a 16 bit 
10 GSPS A/D, and the DSP behind on it).

[Flexradio] Building FlexSDR Software

[KD5NWA]

Bummer, I installed Visual Studio 2003 Office System, and no C#, all 
information on web says it's supposed to be there, including MS site. 
This is a freebie I received at a MS seminar, so it looks like they 
left out the C#, it has Visual Basic.Net and Office Tools.


Here I was all excited, that I might not need to buy that fossil 
software, I'm not giving up, somewhere I might have a 2003 Enterprise 
edition, I vaguely remember getting one, time to search the garage 
this weekend, I have several boxes of software in there.



Cecil Bayona
KD5NWA
www.qrpradio.com

"Windows the worlds most successful software virus" 

[Flexradio] SDR CW/receive problem

[Ken Chong]

Hi again Ken, 

I just remembered a setup condition that WILL make your SDR behave like its 
dead. 
In the setup audio tab, check the  buffer size and make a note of it. Next, 
bring up the 
Delta44 control panel and note the buffer size that was entered.  

Recently , I was able to make my own SDR-1000 behave like a dead rig with 
Preview 15
if the Audio buffer size was 512 (set for CW low latency) , and the Delta 44 
control panel
buffer size was set to 2048 (for normal SSB).  The relays will all click but 
the 
receiver and output was zilch!!!   

Putting the Audio buffer size back to 2048 made the rig come back to life. 
BTW, the Audio buffer can be set to 2048 with the Delta 44 buffer set to 512, 
and it still works.
Normally for CW, I would set both buffers to 512 to decrease the latency.  
Experimenting
with the Delta 44 buffer size  increased to 2048 made the rig go dead when I 
forgot to reset the
512k Audio buffer setting. 

I sure hope this is it!!!


Ken WB6MLC

Re: [Flexradio] SDR CW/receive problem

[Ken Chong]

Hi Ken, 

This is a crazy thought, but did you check the internal cable from the RFE 
board 
going to the 100 watt PA board?  If this cable is not making the proper 
connection,
the rig will sound completely dead too. 

You said that Tune and monitor works but there is no output. That tells me that 
the 1 watt
PEP driver is not driving anything. What kind of current is being drawn during 
the tune mode?

Sounds like a flakky connection somewhere between the PA board and the RFE 
board.  
The last stupid idea is to check the output of your Delta44 in addition to 
making sure the
patch/mixing panel is setup correctly. If the patch panel is set to the wrong 
output , you will 
get a dead SDR rig. The Delta44 control panel always remembers the last setting 
that you had used.
The recent preview betas will change these settings to the correct ones.  If 
you are not using 
a recent beta, then your Delta 44 control panel will still be stuck on the last 
(possibly incorrect)
patch/routing panel selection. 

73, and good luck


Ken WB6MLC

Re: [Flexradio] Sampling rates greater than 48K question

[Ford Peterson]

How critical is the phasing anyway?  Is within a few degrees ok?  Stated 
another way, how does lack of quadrature accuracy alter performance?  

Ford-N0FP
[EMAIL PROTECTED]

Re: [Flexradio] SDR CW/receive problem

[Ken Klein]

Eric and others;

Well, I have one other really interesting thing to report vis a vis my
radio.  With the SDR, 40 meters, as well as everything else including a.m.,
is all but dead.  I hooked up a SoftRock V5.0, changing only the Line In
cable from the SDR to the SoftRock and the antenna.  I also clicked the
Setup menu of the software (Beta Preview 15) to SoftRock40.  Forty meters
was hopping.  Go figure!  This is with a radio that worked perfectly when Ed
fired it up on his desk yesterday.  

I think this must mean that my s/w is installed correctly, and that at least
the Line In cable and Delta44 is working fine.  I am very, very confused.

Any ideas, anyone?

Ken






Ken Klein
2211 W. North Loop Blvd. Apt 251
Austin, Texas 78756
512 517-4646


-Original Message-
From: Eric Wachsmann - FlexRadio [mailto:[EMAIL PROTECTED] 
Sent: Thursday, February 23, 2006 9:13 AM
To: 'Ken Klein'; FlexRadio@flex-radio.biz
Subject: RE: [Flexradio] SDR CW/receive problem

Ken,

Double check the settings on the Setup Form.  Specifically, make sure
that on the Audio Tab, you have the M-Audio Delta 44 selected (the left
side should be grayed out and should read Driver/Input/Output ->
ASIO/M-Audio Delta ASIO/M-Audio Delta ASIO.  Also, make sure that on the
General Tab, Hardware Config Sub Tab that the PA and ATU checkboxes are
marked.


Eric Wachsmann
FlexRadio Systems

> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> radio.biz] On Behalf Of Ken Klein
> Sent: Wednesday, February 22, 2006 7:26 PM
> To: FlexRadio@flex-radio.biz
> Subject: [Flexradio] SDR CW/receive problem
> 
> Everyone;
> 
> 
> 
> Please bear with me as this is my first submission to the reflector;
I
> may
> not know the protocol, but I sure would like some help.
> 
> 
> 
> A couple of weeks ago I bought the 1W version of the SDR/Delta44 and
have
> had a great time setting it up and using it.  I'm getting to know it
> better
> every day, and as everyone agrees, it's pretty much fantastic.  Two
days
> ago
> I received the 100W amp and ATU upgrades and installed them yesterday.
> Now
> I have no output power when I tune or hold the key down.  The red
light on
> the ATU blinks, indicating no output power.  The transmit power meter
> shows
> 0W.  At that time, I hadn't tried SSB.
> 
> 
> 
> Luckily, I live in Austin, and work a few blocks from Ed and Eric.  So
I
> took the radio over to them and Ed immediately put it on the bench and
> tried
> it out.  (Try to get that kind of service from one of the BIG THREE!
> Kudos
> to Gerald, Eric, and Ed, of course, for all their help.)
> 
> 
> 
> It worked perfectly.  He worked through the whole suite, showed me a
lot
> of
> things I didn't know, but it worked.  I even got a compliment on the
amp
> and
> tuner installation (as if it was difficult.)
> 
> 
> 
> I brought the radio home.  No output power in TUNE or CW.  What's
more,
> the
> receive channel seems dead pretty much across the all bands.  Even the
AM
> stations aren't coming in, and the panadapter display hardly
indicates;
> certainly not what I saw when Ed tuned up an AM station on his bench.
> 
> 
> 
> So I completely removed all the Delta44 and PSDR s/w and reloaded from
> scratch.  No change, except that I found a cheap pc microphone and
tried
> SSB.  It worked perfectly.  Good looking signal on the panadapter and
good
> output power! (???)
> 
> 
> 
> Still low receive signals and almost no WWV, which is unusual to say
the
> least.  It won't show any power out using either the tune or CW
functions.
> I've checked everything, even reseating the Delta44 card and all the
> connections.
> 
> 
> 
> Does this problem sound remotely familiar to anyone?  I'd sure like
some
> suggestions to try.
> 
> 
> 
> Thanks a million,
> 
> 
> 
> Ken  WR5H
> 
> 
> 
> 
> 
> 
> 
> ___
> FlexRadio mailing list
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> radio.biz/
> FlexRadio Homepage: http://www.flex-radio.com

[Flexradio] Compiling the Flex Software

[KD5NWA]

In looking through my boxes of goodies I find that I have two copies 
of Visual Studio 2003 for Office Applications. I contains Visual 
Basic.NET and VisualC#, my question to the programmers out there, has 
anyone used this software to compile the source.


I know since it's missing the C++ compiler that you can't modify the 
libraries, but I'm tight for money right now, and VS Studio on eBay 
seems to be selling high.


So has anyone tried it?


Cecil Bayona
KD5NWA
www.qrpradio.com

"Windows the worlds most successful software virus" 

Re: [Flexradio] Sampling rates greater than 48K question

[KD5NWA]

Good start but they are way too small, most use .1uF for 48KHz.

At 07:23 PM 2/23/2006, you wrote:


Like these?

http://www.intersil.com/data/fn/FN8156.pdf

http://www.electronicstalk.com/news/xic/xic125.html

What would the QSD capacitance values be for 48k, 96k and 192K sampling
rates?

-Tim
---
Integrated Technical Services

"You can't close the door when the walls cave in" --Robert Hunter

-Original Message-
From: Eric Ellison [mailto:[EMAIL PROTECTED]
Sent: Thursday, February 23, 2006 8:11 PM
To: [EMAIL PROTECTED]; 'KD5NWA'; Tim Ellison
Cc: FlexRadio@flex-radio.biz
Subject: RE: [Flexradio] Sampling rates greater than 48K question

Eric1

Solution? Drag and drop bandwidth. I do it all the time with the
magnifier in my MP3 editing program to produce Teampspeak audio!
(smile) The harder part is a 'compromise' in the capacitors in the
hardware. Who knows they probably already have I2C programmable
capicitors!

Eric2


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Eric Wachsmann -
FlexRadio
Sent: Tuesday, February 21, 2006 10:36 AM
To: 'KD5NWA'; 'Tim Ellison'
Cc: FlexRadio@flex-radio.biz
Subject: Re: [Flexradio] Sampling rates greater than 48K question

Cecil is on the money here.  To put it more simply, as Bandwidth
increases, Dynamic Range decreases.


Eric Wachsmann
FlexRadio Systems

> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> radio.biz] On Behalf Of KD5NWA
> Sent: Sunday, February 19, 2006 2:06 PM
> To: Tim Ellison
> Cc: FlexRadio@flex-radio.biz
> Subject: Re: [Flexradio] Sampling rates greater than 48K question
>
> You are correct, there is no such thing as a free lunch, the width of
> the windows is a compromise among several factors.
>
> The wider the band you are looking at the more energy there is going
> into the detector.
>
> Since the ADC represents the entire window, the bigger the window the
> more signals present to add up to the maximum resolution of the ADC
> converter, the result is that you may lower the threshold at which
> signals may overload your ADC range. Like all compromises some may be
> willing to take a lower IP3 level in order to see more signals, at
> other times like in the middle of a contest with lot's of high level
> signals the wider bandwidth may not be a very good choice.
>
> At 12:25 PM 2/19/2006, Tim Ellison wrote:
>
> >Question.
> >
> >Yesterday during the "State of the SDR1K" address (BTW, thanks a lot
for
> >your time and effort to share your intentions for 06), the issue of
> >supporting higher sampling rates was briefly addressed by Gerald.  He

> >indicated that the caps in the QSD would have to be changed to
support
> >96K (and higher sampling rates).  So, this implies to me that wit the

> >current hardware configuration you can't operate the SDR1K at
multiple
> >sampling rates - you have to pick one and be happy with what you
picked.
> >
> >I realize that with a higher sampling rate you can decode a wider
> >passband of frequencies, co this is an advantage.  Now, fully
> >understanding the First Law of Thermodynamics (you don't get
something
> >for nothing), what are the disadvantages to using higher sampling
rates?
> >
> >-Tim
> >---
> >Tim Ellison  Integrated Technical Services

> > Apex, NC USA
> >919.674.0044 Ext. 25 / 919.674.0045 (FAX)
> >919.215.6375 - cell
> >Skype: kg4rzy
> >
> >___
> >FlexRadio mailing list
> >FlexRadio@flex-radio.biz
> >http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> >Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> radio.biz/
> >FlexRadio Homepage: http://www.flex-radio.com
>
>
> Cecil Bayona
> KD5NWA
> www.qrpradio.com
>
> "Windows the worlds most successful software virus"
>
>
> ___
> FlexRadio mailing list
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> radio.biz/
> FlexRadio Homepage: http://www.flex-radio.com


___
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FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archive Link:
http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/
FlexRadio Homepage: http://www.flex-radio.com



Cecil Bayona
KD5NWA
www.qrpradio.com

"Windows the worlds most successful software virus" 

Re: [Flexradio] Sampling rates greater than 48K question

[Tim Ellison]

Like these?

http://www.intersil.com/data/fn/FN8156.pdf 

http://www.electronicstalk.com/news/xic/xic125.html

What would the QSD capacitance values be for 48k, 96k and 192K sampling
rates?

-Tim
---
Integrated Technical Services 

"You can't close the door when the walls cave in" --Robert Hunter

-Original Message-
From: Eric Ellison [mailto:[EMAIL PROTECTED] 
Sent: Thursday, February 23, 2006 8:11 PM
To: [EMAIL PROTECTED]; 'KD5NWA'; Tim Ellison
Cc: FlexRadio@flex-radio.biz
Subject: RE: [Flexradio] Sampling rates greater than 48K question

Eric1

Solution? Drag and drop bandwidth. I do it all the time with the
magnifier in my MP3 editing program to produce Teampspeak audio!
(smile) The harder part is a 'compromise' in the capacitors in the
hardware. Who knows they probably already have I2C programmable
capicitors!

Eric2


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Eric Wachsmann -
FlexRadio
Sent: Tuesday, February 21, 2006 10:36 AM
To: 'KD5NWA'; 'Tim Ellison'
Cc: FlexRadio@flex-radio.biz
Subject: Re: [Flexradio] Sampling rates greater than 48K question

Cecil is on the money here.  To put it more simply, as Bandwidth
increases, Dynamic Range decreases.


Eric Wachsmann
FlexRadio Systems

> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]

> radio.biz] On Behalf Of KD5NWA
> Sent: Sunday, February 19, 2006 2:06 PM
> To: Tim Ellison
> Cc: FlexRadio@flex-radio.biz
> Subject: Re: [Flexradio] Sampling rates greater than 48K question
> 
> You are correct, there is no such thing as a free lunch, the width of 
> the windows is a compromise among several factors.
> 
> The wider the band you are looking at the more energy there is going 
> into the detector.
> 
> Since the ADC represents the entire window, the bigger the window the 
> more signals present to add up to the maximum resolution of the ADC 
> converter, the result is that you may lower the threshold at which 
> signals may overload your ADC range. Like all compromises some may be 
> willing to take a lower IP3 level in order to see more signals, at 
> other times like in the middle of a contest with lot's of high level 
> signals the wider bandwidth may not be a very good choice.
> 
> At 12:25 PM 2/19/2006, Tim Ellison wrote:
> 
> >Question.
> >
> >Yesterday during the "State of the SDR1K" address (BTW, thanks a lot
for
> >your time and effort to share your intentions for 06), the issue of 
> >supporting higher sampling rates was briefly addressed by Gerald.  He

> >indicated that the caps in the QSD would have to be changed to
support
> >96K (and higher sampling rates).  So, this implies to me that wit the

> >current hardware configuration you can't operate the SDR1K at
multiple
> >sampling rates - you have to pick one and be happy with what you
picked.
> >
> >I realize that with a higher sampling rate you can decode a wider 
> >passband of frequencies, co this is an advantage.  Now, fully 
> >understanding the First Law of Thermodynamics (you don't get
something
> >for nothing), what are the disadvantages to using higher sampling
rates?
> >
> >-Tim
> >---
> >Tim Ellison  Integrated Technical Services

> > Apex, NC USA
> >919.674.0044 Ext. 25 / 919.674.0045 (FAX)
> >919.215.6375 - cell
> >Skype: kg4rzy
> >
> >___
> >FlexRadio mailing list
> >FlexRadio@flex-radio.biz
> >http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> >Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> radio.biz/
> >FlexRadio Homepage: http://www.flex-radio.com
> 
> 
> Cecil Bayona
> KD5NWA
> www.qrpradio.com
> 
> "Windows the worlds most successful software virus"
> 
> 
> ___
> FlexRadio mailing list
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> radio.biz/
> FlexRadio Homepage: http://www.flex-radio.com


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Archive Link:
http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/
FlexRadio Homepage: http://www.flex-radio.com

Re: [Flexradio] interesting things on OSS development

[Ford Peterson]

I assume you guys are familiar with www.opencores.org   There is a GNU licensed 
System-on-Chip (SoC) called WISHBONE that has developed a pretty good 
following.  If you want to do Linux - like cores, I think you will find that 
WISHBONE has matured into the one-and-only open source SoC.  Looking at the 
first paragraph of the descriptioni of Wishbone you will find: 

"The WISHBONE standard is not copyrighted, and is in the public domain. It may 
be freely copied and distributed by any means. Furthermore, it may be used for 
the design and production of integrated circuit components without royalties or 
other financial obligations. "

Ford-N0FP
[EMAIL PROTECTED]

Re: [Flexradio] Sampling rates greater than 48K question

[Eric Ellison]

Eric1

Solution? Drag and drop bandwidth. I do it all the time with the magnifier
in my MP3 editing program to produce Teampspeak audio! (smile) The
harder part is a 'compromise' in the capacitors in the hardware. Who knows
they probably already have I2C programmable capicitors!

Eric2


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Eric Wachsmann -
FlexRadio
Sent: Tuesday, February 21, 2006 10:36 AM
To: 'KD5NWA'; 'Tim Ellison'
Cc: FlexRadio@flex-radio.biz
Subject: Re: [Flexradio] Sampling rates greater than 48K question

Cecil is on the money here.  To put it more simply, as Bandwidth
increases, Dynamic Range decreases.


Eric Wachsmann
FlexRadio Systems

> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> radio.biz] On Behalf Of KD5NWA
> Sent: Sunday, February 19, 2006 2:06 PM
> To: Tim Ellison
> Cc: FlexRadio@flex-radio.biz
> Subject: Re: [Flexradio] Sampling rates greater than 48K question
> 
> You are correct, there is no such thing as a free lunch, the width of
> the windows is a compromise among several factors.
> 
> The wider the band you are looking at the more energy there is going
> into the detector.
> 
> Since the ADC represents the entire window, the bigger the window the
> more signals present to add up to the maximum resolution of the ADC
> converter, the result is that you may lower the threshold at which
> signals may overload your ADC range. Like all compromises some may be
> willing to take a lower IP3 level in order to see more signals, at
> other times like in the middle of a contest with lot's of high level
> signals the wider bandwidth may not be a very good choice.
> 
> At 12:25 PM 2/19/2006, Tim Ellison wrote:
> 
> >Question.
> >
> >Yesterday during the "State of the SDR1K" address (BTW, thanks a lot
for
> >your time and effort to share your intentions for 06), the issue of
> >supporting higher sampling rates was briefly addressed by Gerald.  He
> >indicated that the caps in the QSD would have to be changed to
support
> >96K (and higher sampling rates).  So, this implies to me that wit the
> >current hardware configuration you can't operate the SDR1K at
multiple
> >sampling rates - you have to pick one and be happy with what you
picked.
> >
> >I realize that with a higher sampling rate you can decode a wider
> >passband of frequencies, co this is an advantage.  Now, fully
> >understanding the First Law of Thermodynamics (you don't get
something
> >for nothing), what are the disadvantages to using higher sampling
rates?
> >
> >-Tim
> >---
> >Tim Ellison 
> >Integrated Technical Services 
> >Apex, NC USA
> >919.674.0044 Ext. 25 / 919.674.0045 (FAX)
> >919.215.6375 - cell
> >Skype: kg4rzy
> >
> >___
> >FlexRadio mailing list
> >FlexRadio@flex-radio.biz
> >http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> >Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> radio.biz/
> >FlexRadio Homepage: http://www.flex-radio.com
> 
> 
> Cecil Bayona
> KD5NWA
> www.qrpradio.com
> 
> "Windows the worlds most successful software virus"
> 
> 
> ___
> FlexRadio mailing list
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> radio.biz/
> FlexRadio Homepage: http://www.flex-radio.com


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FlexRadio Homepage: http://www.flex-radio.com

Re: [Flexradio] watch receivers

[Eric Ellison]

Frank!

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Frank Brickle
Sent: Tuesday, February 21, 2006 12:33 PM
To: Bill Tracey
Cc: FlexRadio@flex-radio.biz
Subject: Re: [Flexradio] watch receivers

Bill Tracey wrote:
> With the FPGA based sound I/O work we're doing, independent D/A channels 
> are fairly easy, just instantiate a PWM decoder in the FPGA and an R and 
> C in hardware can be used as an output channel.

Can I have one *now*, please? ;-)




Hihihihih... I SWEAR by the blood of my first born, that I will produce the
technology advancement that Phil and Bill are working on and you can have
one "THEN". I'm good at sorting parts, and lickin' stamps. This is a
revolution on many fronts tied into independent activity, ESPECIALLY single
conversion SDR technology. The Janus IS more than a 'sound card replacement'
and the Audio A/D only costs about 8 bux.

(snip)

G'day!
Eric

[Flexradio] interesting things on OSS development

[Jim Lux]

In particular, having to deal with usability and/or documentation and why 
F/OSS projects are different from commercialy motivated ones:

http://firstmonday.org/issues/issue8_1/nichols/index.html
Many of the references in Nichol's paper are also quite interesting.


James Lux, P.E.
Spacecraft Radio Frequency Subsystems Group
Flight Communications Systems Section
Jet Propulsion Laboratory, Mail Stop 161-213
4800 Oak Grove Drive
Pasadena CA 91109
tel: (818)354-2075
fax: (818)393-6875

Re: [Flexradio] filter descriptions

[richard allen]

Bill,

You can probably get a good mathematical explanation from Bob or Frank.
  I like to think that the window smooths out the edges of a set of 
data to eliminate high frequency false info caused by the sharp 
transitions.  

Practically, some of the window functions provide nice narrow spikes 
but tend to widen out with a big signal as you get lower in level.  
Others, like my personal favorite,  the Blackman-Harris series, 
provide great dynamic range but tend to be a bit wider at the peak.  
The Hanning is nice for typical radio use since the signals are in 
the less than 90 dB level.  Making measurements with large level 
signals over 100 dB level, the Blackman-Harris works better.  The 
rectangular window is really no window at all.  Try it on a big 
signal and you can see why some window is useful at most times.  

Tune to where you have large cw signals and switch the different 
filters.  Some of the spreading that you see near the bottom of the 
signal is caused by the keying of the signal itself; it did not stop 
or start where it could get smoothed by the window function.  You see 
the spreading intermittantly since it depends on whether or not the 
signal started or stopped in the tiome of the current data buffer.

Regards,
Richard W5SXD

"Bill Nagle" <[EMAIL PROTECTED]> wrote:
(02/23/2006 15:15)

>Do you have a description of the various filters like the hanning default and 
>what is best for what mode?
>
>
>Bill Nagle
>
>
>
>___
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>FlexRadio Homepage: http://www.flex-radio.com

Re: [Flexradio] filter descriptions

[Eric Wachsmann - FlexRadio]

Yes.  Operating Manual Ch. 7.  Look for Setup Form -> DSP -> Window.


Eric Wachsmann
FlexRadio Systems

> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> radio.biz] On Behalf Of Bill Nagle
> Sent: Thursday, February 23, 2006 3:15 PM
> To: FlexRadio@flex-radio.biz
> Subject: [Flexradio] filter descriptions
> 
> Do you have a description of the various filters like the hanning
default
> and
> what is best for what mode?
> 
> 
> Bill Nagle
> 
> 
> 
> ___
> FlexRadio mailing list
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> radio.biz/
> FlexRadio Homepage: http://www.flex-radio.com

[Flexradio] filter descriptions

[Bill Nagle]

Do you have a description of the various filters like the hanning default and 
what is best for what mode?


Bill Nagle

Re: [Flexradio] MORE EQ channels

[Eric Wachsmann - FlexRadio]

For the record, that was Bob talking about the latency.  :)


Eric Wachsmann
FlexRadio Systems

> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> radio.biz] On Behalf Of Willi Reppel
> Sent: Thursday, February 23, 2006 2:23 PM
> To: Bill Nagle; FlexRadio@flex-radio.biz
> Subject: Re: [Flexradio] MORE EQ channels
> 
> Bill,
> This has been discussed during the townhall meeting last week and the
> German
> user group, presented by Klaus Lohmann, asked and demanded to increase
the
> amount of eq channels to eight. Eric 1st. said it would be possible if
the
> users accept an increase in latency of approx 30-40 msec.
> 73,
> Willi
> - Original Message -
> From: "Bill Nagle" <[EMAIL PROTECTED]>
> To: 
> Sent: Thursday, February 23, 2006 6:19 PM
> Subject: [Flexradio] MORE EQ channels
> 
> 
> > Requesting an increase of eq channels from 3 to 5. Anyone else?
> >
> >
> > Bill Nagle
> >
> >
> >
> > ___
> > FlexRadio mailing list
> > FlexRadio@flex-radio.biz
> > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> > Archive Link:
> > http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/
> > FlexRadio Homepage: http://www.flex-radio.com
> >
> 
> 
> 
> ___
> FlexRadio mailing list
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> radio.biz/
> FlexRadio Homepage: http://www.flex-radio.com

Re: [Flexradio] MORE EQ channels

[Willi Reppel]

Bill,
This has been discussed during the townhall meeting last week and the German 
user group, presented by Klaus Lohmann, asked and demanded to increase the 
amount of eq channels to eight. Eric 1st. said it would be possible if the 
users accept an increase in latency of approx 30-40 msec.

73,
Willi
- Original Message - 
From: "Bill Nagle" <[EMAIL PROTECTED]>

To: 
Sent: Thursday, February 23, 2006 6:19 PM
Subject: [Flexradio] MORE EQ channels



Requesting an increase of eq channels from 3 to 5. Anyone else?


Bill Nagle



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FlexRadio Homepage: http://www.flex-radio.com

Re: [Flexradio] good job

[Robert W McGwier]

Bill:

I think what you need to work with to begin with is the settings for ALC 
that are on the


DSP->AGC/ALC  tab.  The ALC and the Leveler settings impact the transmitter.

Bob
N4HY


Eric Wachsmann - FlexRadio wrote:

Bill,

The ALC for AM can be seen at do_tx_AM() in sdr.c (at line 937 in the
current SVN source).  



Eric Wachsmann
FlexRadio Systems

  

-Original Message-
From: Bill Nagle [mailto:[EMAIL PROTECTED]
Sent: Thursday, February 23, 2006 11:26 AM
To: [EMAIL PROTECTED]; FlexRadio@flex-radio.biz
Subject: good job

I wanted to thank you for the AM SLIDER addition, it works perfectly.

The only other thing i see at the moment is if I slam a lot of audio


in on
  

AM, it
hits the "rails " and flattops.  If you or bob could show me where the
line of
code is that sets the alc start point for AM, i could tweak it and


make a
  

suggestion for future rev change. Better yet, could it be made


adjustable
  

in
settings easily?

Also, has anyone asked for independent sideband transmit capability


for
  

possible use with digital on one side and voice on the other?


Bill Nagle
[EMAIL PROTECTED]






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--
Robert W. McGwier, Ph.D.
Center for Communications Research
805 Bunn Drive
Princeton, NJ 08540
(609)-924-4600

Re: [Flexradio] good job

[Eric Wachsmann - FlexRadio]

Bill,

The ALC for AM can be seen at do_tx_AM() in sdr.c (at line 937 in the
current SVN source).  


Eric Wachsmann
FlexRadio Systems

> -Original Message-
> From: Bill Nagle [mailto:[EMAIL PROTECTED]
> Sent: Thursday, February 23, 2006 11:26 AM
> To: [EMAIL PROTECTED]; FlexRadio@flex-radio.biz
> Subject: good job
> 
> I wanted to thank you for the AM SLIDER addition, it works perfectly.
> 
> The only other thing i see at the moment is if I slam a lot of audio
in on
> AM, it
> hits the "rails " and flattops.  If you or bob could show me where the
> line of
> code is that sets the alc start point for AM, i could tweak it and
make a
> suggestion for future rev change. Better yet, could it be made
adjustable
> in
> settings easily?
> 
> Also, has anyone asked for independent sideband transmit capability
for
> possible use with digital on one side and voice on the other?
> 
> 
> Bill Nagle
> [EMAIL PROTECTED]
> 

Re: [Flexradio] tortisesvn installed, what next?

[Robert W McGwier]

Let me add some caveats to those who may not know what this is.  This is 
where developers share code updates.  Things contents can <> 
change from one second to the next with no warning.  This is not the 
place to get distributions.  This code can be sufficiently broken in 
intermediate steps building towards release that your favorite thing 
will not work.  In some cases,  it could be dangerous to your hardware 
should we be experimenting with level controls, etc.  This code is not 
for typical end user.  It is for developers and/or those attempting to 
learn how all this works.


The mechanism to add developers is still being worked out (allow you the 
prospective developer your own branch and restricting access to the main 
trunk so we can merge when we agree).  For those who wish to prepare 
themselves for this eventual opening,   and intend developing on 
Windows,  you will need to prepare yourself to do ssh on windows.


You will need putty.exe and pageant.exe.  Google for putty and you will 
find the web page where you can download both.  TortoiseSVN is a 
fabulous mechanism for all of this on Windows.


putty is your tool for using ssh (secure shell,  encrypted 
communications and verification of identity).  pageant makes it easier 
since it stores this information for repeated use in a secure manner.  
None of the opening for development will occur until the 1.6.0 trunk is 
built.  From there we will figure out how to have branches building 
towards 1.7 available.


Bob
N4HY





Eric Wachsmann - FlexRadio wrote:

svn://206.216.146.154/svn/repos_sdr_windows/PowerSDR


Eric Wachsmann
FlexRadio Systems


  

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
radio.biz] On Behalf Of Jim Lux
Sent: Wednesday, February 22, 2006 11:25 PM
To: flexRadio@flex-radio.biz
Subject: [Flexradio] tortisesvn installed, what next?

And, so what is the URL of the repository?

James Lux, P.E.
Spacecraft Radio Frequency Subsystems Group
Flight Communications Systems Section
Jet Propulsion Laboratory, Mail Stop 161-213
4800 Oak Grove Drive
Pasadena CA 91109
tel: (818)354-2075
fax: (818)393-6875



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radio.biz/
FlexRadio Homepage: http://www.flex-radio.com




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FlexRadio Homepage: http://www.flex-radio.com

  



--
Robert W. McGwier, Ph.D.
Center for Communications Research
805 Bunn Drive
Princeton, NJ 08540
(609)-924-4600

Re: [Flexradio] QRP on the 100w/auto tuner version

[Eric Wachsmann - FlexRadio]

David,

The FlexRadio software offers a scaled output stepped from 1-100%.  We
do not have the fine control that would be necessary to set the 100W
output to say 10mW.  However, you CAN disable the PA (which disables the
ATU and bypasses it), and set the PWR slider from 1-100% of 1W (or
something close to it).  This is probably what you are going for.


Eric Wachsmann
FlexRadio Systems

> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> radio.biz] On Behalf Of David Queen
> Sent: Thursday, February 23, 2006 12:30 PM
> To: FlexRadio@flex-radio.biz
> Subject: [Flexradio] QRP on the 100w/auto tuner version
> 
> I live in an Aprtment and think it would be better if I kept my power
> output
> low. Around a watt.
> This will make it a bit of more of a challenge making contacts but so
be
> it.
> How well does the 100w/auto tuner work as a QRP rig? Also I want to
try
> really low power out  will that
be
> easy
> enough to do?
> 
> Thanks.
> 
> --
> If you can read, thank a teacher.  If you can read in English., thank
a
> soldier.
> ___
> FlexRadio mailing list
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> radio.biz/
> FlexRadio Homepage: http://www.flex-radio.com

[Flexradio] QRP on the 100w/auto tuner version

[David Queen]

I live in an Aprtment and think it would be better if I kept my power output
low. Around a watt.
This will make it a bit of more of a challenge making contacts but so be it.
How well does the 100w/auto tuner work as a QRP rig? Also I want to try
really low power out  will that be easy
enough to do?

Thanks.

--
If you can read, thank a teacher.  If you can read in English., thank a
soldier.

[Flexradio] good job

[Bill Nagle]

I wanted to thank you for the AM SLIDER addition, it works perfectly.

The only other thing i see at the moment is if I slam a lot of audio in on AM, 
it 
hits the "rails " and flattops.  If you or bob could show me where the line of 
code is that sets the alc start point for AM, i could tweak it and make a 
suggestion for future rev change. Better yet, could it be made adjustable in 
settings easily?

Also, has anyone asked for independent sideband transmit capability  for 
possible use with digital on one side and voice on the other?


Bill Nagle
[EMAIL PROTECTED]

[Flexradio] LSB Memory

[Bill Nagle]

Has anyone else run into this glitch on rev 13-15?

If you set LSB receive to say 4khz then exit the software and start it up 
again, 
LSB has switched to 6khz.


Bill Nagle

[Flexradio] MORE EQ channels

[Bill Nagle]

Requesting an increase of eq channels from 3 to 5. Anyone else?


Bill Nagle

Re: [Flexradio] tortisesvn installed, what next?

[Eric Wachsmann - FlexRadio]

To clarify, the SVN server allows access to the source and is useful for
developers to follow real time changes to the source.  THIS IS NOT A
PRODUCTION RELEASE OR EVEN A BETA RELEASE.  It is a constant snapshot of
the current development source that the developers are using in real
time.

Eric Wachsmann
FlexRadio Systems

> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> radio.biz] On Behalf Of Eric Wachsmann - FlexRadio
> Sent: Thursday, February 23, 2006 9:14 AM
> To: 'Jim Lux'; flexRadio@flex-radio.biz
> Subject: Re: [Flexradio] tortisesvn installed, what next?
> 
> svn://206.216.146.154/svn/repos_sdr_windows/PowerSDR
> 
> 
> Eric Wachsmann
> FlexRadio Systems
> 
> 
> > -Original Message-
> > From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
> > radio.biz] On Behalf Of Jim Lux
> > Sent: Wednesday, February 22, 2006 11:25 PM
> > To: flexRadio@flex-radio.biz
> > Subject: [Flexradio] tortisesvn installed, what next?
> >
> > And, so what is the URL of the repository?
> >
> > James Lux, P.E.
> > Spacecraft Radio Frequency Subsystems Group
> > Flight Communications Systems Section
> > Jet Propulsion Laboratory, Mail Stop 161-213
> > 4800 Oak Grove Drive
> > Pasadena CA 91109
> > tel: (818)354-2075
> > fax: (818)393-6875
> >
> >
> >
> > ___
> > FlexRadio mailing list
> > FlexRadio@flex-radio.biz
> > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> > Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> > radio.biz/
> > FlexRadio Homepage: http://www.flex-radio.com
> 
> 
> ___
> FlexRadio mailing list
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> radio.biz/
> FlexRadio Homepage: http://www.flex-radio.com

[Flexradio] tortisesvn installed, what next?

[Philip Covington]

Good deal... works great...

Phil C

On 2/23/06, Eric Wachsmann - FlexRadio <[EMAIL PROTECTED]> wrote:
> svn://206.216.146.154/svn/repos_sdr_windows/PowerSDR
>
>
> Eric Wachsmann
> FlexRadio Systems
>
>
> > -Original Message-
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> > radio.biz] On Behalf Of Jim Lux
> > Sent: Wednesday, February 22, 2006 11:25 PM
> > To: flexRadio@flex-radio.biz
> > Subject: [Flexradio] tortisesvn installed, what next?
> >
> > And, so what is the URL of the repository?
> >
> > James Lux, P.E.
> > Spacecraft Radio Frequency Subsystems Group
> > Flight Communications Systems Section
> > Jet Propulsion Laboratory, Mail Stop 161-213
> > 4800 Oak Grove Drive
> > Pasadena CA 91109
> > tel: (818)354-2075
> > fax: (818)393-6875
> >
> >
> >
> > ___
> > FlexRadio mailing list
> > FlexRadio@flex-radio.biz
> > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> > Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> > radio.biz/
> > FlexRadio Homepage: http://www.flex-radio.com
>
>
> ___
> FlexRadio mailing list
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/
> FlexRadio Homepage: http://www.flex-radio.com
>

Re: [Flexradio] tortisesvn installed, what next?

[Eric Wachsmann - FlexRadio]

svn://206.216.146.154/svn/repos_sdr_windows/PowerSDR


Eric Wachsmann
FlexRadio Systems


> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> radio.biz] On Behalf Of Jim Lux
> Sent: Wednesday, February 22, 2006 11:25 PM
> To: flexRadio@flex-radio.biz
> Subject: [Flexradio] tortisesvn installed, what next?
> 
> And, so what is the URL of the repository?
> 
> James Lux, P.E.
> Spacecraft Radio Frequency Subsystems Group
> Flight Communications Systems Section
> Jet Propulsion Laboratory, Mail Stop 161-213
> 4800 Oak Grove Drive
> Pasadena CA 91109
> tel: (818)354-2075
> fax: (818)393-6875
> 
> 
> 
> ___
> FlexRadio mailing list
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> radio.biz/
> FlexRadio Homepage: http://www.flex-radio.com

Re: [Flexradio] SDR CW/receive problem

[Eric Wachsmann - FlexRadio]

Ken,

Double check the settings on the Setup Form.  Specifically, make sure
that on the Audio Tab, you have the M-Audio Delta 44 selected (the left
side should be grayed out and should read Driver/Input/Output ->
ASIO/M-Audio Delta ASIO/M-Audio Delta ASIO.  Also, make sure that on the
General Tab, Hardware Config Sub Tab that the PA and ATU checkboxes are
marked.


Eric Wachsmann
FlexRadio Systems

> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> radio.biz] On Behalf Of Ken Klein
> Sent: Wednesday, February 22, 2006 7:26 PM
> To: FlexRadio@flex-radio.biz
> Subject: [Flexradio] SDR CW/receive problem
> 
> Everyone;
> 
> 
> 
> Please bear with me as this is my first submission to the reflector;
I
> may
> not know the protocol, but I sure would like some help.
> 
> 
> 
> A couple of weeks ago I bought the 1W version of the SDR/Delta44 and
have
> had a great time setting it up and using it.  I'm getting to know it
> better
> every day, and as everyone agrees, it's pretty much fantastic.  Two
days
> ago
> I received the 100W amp and ATU upgrades and installed them yesterday.
> Now
> I have no output power when I tune or hold the key down.  The red
light on
> the ATU blinks, indicating no output power.  The transmit power meter
> shows
> 0W.  At that time, I hadn't tried SSB.
> 
> 
> 
> Luckily, I live in Austin, and work a few blocks from Ed and Eric.  So
I
> took the radio over to them and Ed immediately put it on the bench and
> tried
> it out.  (Try to get that kind of service from one of the BIG THREE!
> Kudos
> to Gerald, Eric, and Ed, of course, for all their help.)
> 
> 
> 
> It worked perfectly.  He worked through the whole suite, showed me a
lot
> of
> things I didn't know, but it worked.  I even got a compliment on the
amp
> and
> tuner installation (as if it was difficult.)
> 
> 
> 
> I brought the radio home.  No output power in TUNE or CW.  What's
more,
> the
> receive channel seems dead pretty much across the all bands.  Even the
AM
> stations aren't coming in, and the panadapter display hardly
indicates;
> certainly not what I saw when Ed tuned up an AM station on his bench.
> 
> 
> 
> So I completely removed all the Delta44 and PSDR s/w and reloaded from
> scratch.  No change, except that I found a cheap pc microphone and
tried
> SSB.  It worked perfectly.  Good looking signal on the panadapter and
good
> output power! (???)
> 
> 
> 
> Still low receive signals and almost no WWV, which is unusual to say
the
> least.  It won't show any power out using either the tune or CW
functions.
> I've checked everything, even reseating the Delta44 card and all the
> connections.
> 
> 
> 
> Does this problem sound remotely familiar to anyone?  I'd sure like
some
> suggestions to try.
> 
> 
> 
> Thanks a million,
> 
> 
> 
> Ken  WR5H
> 
> 
> 
> 
> 
> 
> 
> ___
> FlexRadio mailing list
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-
> radio.biz/
> FlexRadio Homepage: http://www.flex-radio.com

[Flexradio] SDR CW/receive problem

[Lee A Crocker]

My guess is the problem lays between the sound card
and the radio, AKA the cables that connect the 2. 
Check to see that the plugs are plugged in all the
way, and that there is not some trouble in the 1/8
jacks.  This sounds silly but it fits your symptoms
and time frame (worked one day, did not work after I
disconnected it and reconnected it, worked at the flex
shop)

73  W9OY

__
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 

Re: [Flexradio] tortisesvn installed, what next?

[Philip Covington]

Yes, we all are all waiting in anticipation.  Some of us don't need a
detailed document on how to use SVN... we just need the address of the
server...

Phil N8VB

On 2/23/06, Jim Lux <[EMAIL PROTECTED]> wrote:
> And, so what is the URL of the repository?
>
> James Lux, P.E.
> Spacecraft Radio Frequency Subsystems Group
> Flight Communications Systems Section
> Jet Propulsion Laboratory, Mail Stop 161-213
> 4800 Oak Grove Drive
> Pasadena CA 91109
> tel: (818)354-2075
> fax: (818)393-6875
>
>
>
> ___
> FlexRadio mailing list
> FlexRadio@flex-radio.biz
> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/
> FlexRadio Homepage: http://www.flex-radio.com
>

Re: [Flexradio] SDR CW/receive problem

[Ignacio Cembreros]

Ken, this may be a clue:

I own a SDR1000 since 2003.  Well, the other day I had to move it to 
another custom cabinet because I added the RFE board.
The receiver became deaf, only showing some spurs.  After several 
desperate and frustrating hours, thinking I had to send the whole thing 
to Gerald,  I finally found the cable going to the  audio card line in 
plugged into J3 instead of J1.   Believe it or not,  I had  misplaced 
the conector labels in the cabinet !!!.


73 de Ignacio, EB4APL

---


Ken Klein wrote:


Everyone;



Please bear with me as this is my first submission to the reflector;  I may
not know the protocol, but I sure would like some help.



A couple of weeks ago I bought the 1W version of the SDR/Delta44 and have
had a great time setting it up and using it.  I'm getting to know it better
every day, and as everyone agrees, it's pretty much fantastic.  Two days ago
I received the 100W amp and ATU upgrades and installed them yesterday.  Now
I have no output power when I tune or hold the key down.  The red light on
the ATU blinks, indicating no output power.  The transmit power meter shows
0W.  At that time, I hadn't tried SSB.



Luckily, I live in Austin, and work a few blocks from Ed and Eric.  So I
took the radio over to them and Ed immediately put it on the bench and tried
it out.  (Try to get that kind of service from one of the BIG THREE!  Kudos
to Gerald, Eric, and Ed, of course, for all their help.)



It worked perfectly.  He worked through the whole suite, showed me a lot of
things I didn't know, but it worked.  I even got a compliment on the amp and
tuner installation (as if it was difficult.)



I brought the radio home.  No output power in TUNE or CW.  What's more, the
receive channel seems dead pretty much across the all bands.  Even the AM
stations aren't coming in, and the panadapter display hardly indicates;
certainly not what I saw when Ed tuned up an AM station on his bench.



So I completely removed all the Delta44 and PSDR s/w and reloaded from
scratch.  No change, except that I found a cheap pc microphone and tried
SSB.  It worked perfectly.  Good looking signal on the panadapter and good
output power! (???)



Still low receive signals and almost no WWV, which is unusual to say the
least.  It won't show any power out using either the tune or CW functions.
I've checked everything, even reseating the Delta44 card and all the
connections.



Does this problem sound remotely familiar to anyone?  I'd sure like some
suggestions to try.



Thanks a million,



Ken  WR5H







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[Flexradio] Java GUI update ...

[John Melton]

I have put an updated version of the Java GUI on my web site 
http://microsat.homelinux.org/dttsp that now has a memory Write and Read 
capability when using the DDS-60 interface.


John g0orx/n6lyt