[Flexradio] New Band Text Table?

[Jim, W4ATK]

I must have missed something. Has there been a new band text table
published? I have looked at the Flex web-site but did not see it.

Jim W4ATK


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[Flexradio] Any mdb-file with Region 1 frequencies?

[Ahti Aintila]

Hi Flexers,

Has anybody "Access", time and interest for making a downloadable
general purpose (or even personalized) mdb-file with IARU Region 1
frequency allocations?

73, Ahti OH2RZ

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Re: [Flexradio] New Band Text Table?

[Tim Ellison]

It is not an individual file that you download.  You must download the
latest SVN of PowerSDR and allow it to create a brand new database to
get the updated BandText table.  To do that, you must rename the
PowerSDR.MDB file in the PowerSDR directory that you are using to
something else before starting PowerSDR.

Then you can use the Database Table Migration Tool (it is on the KB) to
copy all of the other tables from your old database to the new one so
your current settings are preserved.

You can also use MS Access for this too.  If you are not experienced
with databases and Access, I strongly recommend the DB Migration tool.

 
-Tim

Integrated Technical Services
www.itsco.com

"Si fractum non sit, id reficere"
-Unknown Roman consultant

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jim, W4ATK
Sent: Sunday, December 17, 2006 6:39 AM
To: Flex-radio Reflector
Subject: [Flexradio] New Band Text Table?

I must have missed something. Has there been a new band text
table
published? I have looked at the Flex web-site but did not see it.

Jim W4ATK


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[Flexradio] [Fwd: [SDR-1000] Raleigh, NC area demo?]

[Ken N9VV]

Request for demo in NC

 Original Message 
Subject:[SDR-1000] Raleigh, NC area demo?
Date:   Sun, 17 Dec 2006 14:39:32 -
From:   Floyd Sense <[EMAIL PROTECTED]>

Anyone in the greater Raleigh, NC area interested in demoing their
SDR-1000 to me? K8AC in Angier,NC.

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Re: [Flexradio] Band Text Changes

[Jim, W4ATK]

Ok, now I am caught up. Thanks Eric and guys.

73 Jim, W4ATK

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Re: [Flexradio] S - Meter Emulation

[Robert McGwier]

Perfect.  Any 500 Hz wide filter in any mode (with the exception of SPEC 
mode) should come close to this result. 

Bob
N4HY


Joe - AB1DO wrote:
> Edwin,
>
> to do a quick and dirty check on your XG-1, first use it to calibrate your 
> SDR-1000. Then connect your SDR-1000 to a dummy load, set it to CWU or CWL 
> with a 500Hz filter setting, set the preamp to high and read the noise level 
> in the RX digital meter (the yellow numbers above the analog meter). If it 
> reads around -130 to -135dBm, your XG-1 is probably just fine.
>
> 73 de Joe - AB1DO
>
>   


-- 
AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL,
TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair
"If you board the wrong train, it is no use running along the
corridor in the other direction. " - Dietrich Bonhoffer


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Re: [Flexradio] S - Meter Emulation

[Robert McGwier]

Da!

73's
Bob
N4HY

Sergey Abramov wrote:
> Hi, Edwin.
>
> I also use Elecraft XG-1 and wholly satisfied S-meter in PowerSDR.
> These vastly best and truthful than japanese S-meters.
> Emulation bad S-meters IC, FT, TS - this self-deception and step to back.
>
> SDR1k 1W + Home Made PA
> Pentium D 2.8GHz, Delta44, WinXP Pro SP2
>   


-- 
AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL,
TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair
"If you board the wrong train, it is no use running along the
corridor in the other direction. " - Dietrich Bonhoffer


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Re: [Flexradio] Flex Noise Reduction

[Robert McGwier]

Dale and Larry:

When you have "cyclostationary" noise of the buzzing (but not impulsive 
type) it has been a surprise to me how well the block LMS NR works.  It 
has many more taps than the regular LMS NR and it appears to hate the 
most irritating features in these buzzing things and works to attenuate 
them.

This was a pleasant serendipitous discovery.

Bob


Dale Boresz wrote:
> Larry,
>
> Did you mean to say NB (Noise-blanker) rather than NR (Noise Reduction)? 
> I know the NR will reduce listening fatigue, but I don't believe it'll 
> lift a signal up out of impulse noise. The NB and NB2 noise blankers are 
> phenomenal in their ability to eliminate impulse noise sources; 
> significantly better than any other radio I've used.
>
> 73, Dale
> WA8SRA
>
> Larry W8ER wrote:
>
>   
>> Last night I found myself participating in the "phone band expansion" 
>> celebration. Dave W9AD, another Flexer, and I conferenced on Skype and began 
>> comparing notes after about an hour or so of partying. He recently began 
>> experiencing power line noise and with the poor band conditions was using 
>> his NR with a great deal of success. Signals that were not able to be heard 
>> without the NR function were perfectly readable with it. I have never really 
>> used the NR function, just lucky enough to have never needed it but I 
>> recently started getting a halogen street lamp buzz. I took his lead and 
>> tried it. My results were the same as his. When the noise would start (a 
>> several minute cycle) the NR function would completely eliminate it. I am 
>> impressed to pieces!
>>
>> --Larry W8ER
>> 

-- 
AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL,
TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair
"If you board the wrong train, it is no use running along the
corridor in the other direction. " - Dietrich Bonhoffer


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Re: [Flexradio] S - Meter Emulation

[Larry Loen]

Double Da!!

There is way too much attention paid to S meters.  I'm glad that ours is 
accurate (or, more properly, can be made so), but unless you're trying 
to do a serious scientific experiment in propagation, which requires 
calibrated S meters _on both ends_ just for starters, it doesn't mean 
much anyway.  

We may as well tell the truth and have done with it.

A signal report, for the most part, is just a custom.  And, like many 
customs, it parts with reality, too, even before we consider poor 
calibration.

Giving 59, in many cases, is done for the kind of reason you say "fine" 
to someone inquiring "How are you" when, in fact, you have a terrible 
cold and your tax bill just rose a thousand bucks.

We may as well have an accurate measure when we want one, because the 
rest of the time, the number is arbitrary.  I do it "by ear" without 
hardly looking at the meter anyway, which has been true since my FT101 
days.  Scientifically, that's a travesty, of course, but I'm sure that 
many if not most hams either say 59 or make a guess based on what hits 
their eardrums anyway.



Larry  WO0Z


Robert McGwier wrote:

>Da!
>
>73's
>Bob
>N4HY
>
>Sergey Abramov wrote:
>  
>
>>Hi, Edwin.
>>
>>I also use Elecraft XG-1 and wholly satisfied S-meter in PowerSDR.
>>These vastly best and truthful than japanese S-meters.
>>Emulation bad S-meters IC, FT, TS - this self-deception and step to back.
>>
>>SDR1k 1W + Home Made PA
>>Pentium D 2.8GHz, Delta44, WinXP Pro SP2
>>  
>>
>>
>
>
>  
>




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Re: [Flexradio] [Fwd: ARLB030 FCC to Drop Morse Testing for All Amateur License Classes]

[Robert McGwier]

Frank and I are at GnuRadio Hackfest.  I doubt anyone who knows us would 
categorize us as anything but techno-geeks.  We are constantly looking 
at the lastest technology (we are about to have an OFDM system running 
in GnuRadio for example) that could be of benefit to amateur radio in 
particular and communications in general.  That said,  though we both 
support this decision,  we are die hard CW users.  Almost without 
exception,  when we sit down in front of a radio in either of our 
homes,  the first thing either of us  touches is the paddle.  

That said,  I believe the FCC has done a thing they think will help save 
amateur radio.  That they would attempt this is surprising since they 
could have just as easily made everyone do 20 wpm and killed the hobby 
for sure and then auctioned off the spectrum.  I hope they are right and 
this succeeds.  We must stop having our population grow one year older 
per year.  This is a prescription for utter disaster.  The other 
prescription for disaster is to sit on our backsides and fail to recruit 
new people, as many as we can that are under 30 years old, into our 
hobby.  Software Radio, Cognitive Radio, and other high tech toys are 
good tools to use to recruit interesting your people.  USE THEM.

It is up to each of us in the US to use this opportunity to do all we 
can do for our hobby.

May 2007 be a great year for Software Radio in particular and amateur 
radio in general.

Bob
N4HY


KE5EUP wrote:
> -
>
> SB QST @ ARL $ARLB030
> ARLB030 FCC to Drop Morse Testing for All Amateur License Classes
>
> ZCZC AG30
> QST de W1AW  
> ARRL Bulletin 30  ARLB030
> >From ARRL Headquarters  
> Newington CT  December 16, 2006
> To all radio amateurs 
>
> SB QST ARL ARLB030
> ARLB030 FCC to Drop Morse Testing for All Amateur License Classes
>
>   


-- 
AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL,
TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair
"If you board the wrong train, it is no use running along the
corridor in the other direction. " - Dietrich Bonhoffer


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Re: [Flexradio] [Fwd: ARLB030 FCC to Drop Morse Testing for All Amateur License Classes]

[John Basilotto]

Bob, well said.  Happy holidays.

John P. Basilotto 
W5GI
Marketing and Product Manager
FlexRadio Systems
512 535-5266

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Robert McGwier
Sent: Sunday, December 17, 2006 10:56 AM
To: [EMAIL PROTECTED]
Cc: Flex Radio Reflector
Subject: Re: [Flexradio] [Fwd: ARLB030 FCC to Drop Morse Testing for All
Amateur License Classes]


Frank and I are at GnuRadio Hackfest.  I doubt anyone who knows us would 
categorize us as anything but techno-geeks.  We are constantly looking 
at the lastest technology (we are about to have an OFDM system running 
in GnuRadio for example) that could be of benefit to amateur radio in 
particular and communications in general.  That said,  though we both 
support this decision,  we are die hard CW users.  Almost without 
exception,  when we sit down in front of a radio in either of our 
homes,  the first thing either of us  touches is the paddle.  

That said,  I believe the FCC has done a thing they think will help save 
amateur radio.  That they would attempt this is surprising since they 
could have just as easily made everyone do 20 wpm and killed the hobby 
for sure and then auctioned off the spectrum.  I hope they are right and 
this succeeds.  We must stop having our population grow one year older 
per year.  This is a prescription for utter disaster.  The other 
prescription for disaster is to sit on our backsides and fail to recruit 
new people, as many as we can that are under 30 years old, into our 
hobby.  Software Radio, Cognitive Radio, and other high tech toys are 
good tools to use to recruit interesting your people.  USE THEM.

It is up to each of us in the US to use this opportunity to do all we 
can do for our hobby.

May 2007 be a great year for Software Radio in particular and amateur 
radio in general.

Bob
N4HY


KE5EUP wrote:
> -
>
> SB QST @ ARL $ARLB030
> ARLB030 FCC to Drop Morse Testing for All Amateur License Classes
>
> ZCZC AG30
> QST de W1AW  
> ARRL Bulletin 30  ARLB030
> >From ARRL Headquarters  
> Newington CT  December 16, 2006
> To all radio amateurs 
>
> SB QST ARL ARLB030
> ARLB030 FCC to Drop Morse Testing for All Amateur License Classes
>
>   


-- 
AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL,
TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair
"If you board the wrong train, it is no use running along the
corridor in the other direction. " - Dietrich Bonhoffer


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Re: [Flexradio] Flex Noise Reduction

[Larry Taft]

OK McG, just what is the oxymoron "cyclostationary" ?

Larry  K2LT

Robert McGwier wrote:
>
> When you have "cyclostationary" noise of the buzzing (but not impulsive 
>   


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Re: [Flexradio] Flex Noise Reduction

[Bill Tracey]

 From Wikipedia:
A signal 
having statistical properties that vary cyclically with time is called a 
cyclostationary 
process.[1] A 
cyclostationary process can be viewed as multiple interleaved 
stationary processes. For 
example, the maximum daily temperature in New York City can be modeled as a 
cyclostationary process: the maximum temperature on July 21 is 
statistically different from the temperature on December 20; however, the 
temperature on December 20 of different years has (arguably) identical 
statistics. Thus, we can view the random process composed of daily maximum 
temperatures as 365 interleaved stationary processes, each of which takes 
on a new value once per year.

Plenty-o-hits @: http://www.google.com/search?q=cyclostationary

Bill

At 11:37 AM 12/17/2006, Larry Taft wrote:
>OK McG, just what is the oxymoron "cyclostationary" ?
>
>Larry  K2LT
>
>Robert McGwier wrote:
> >
> > When you have "cyclostationary" noise of the buzzing (but not impulsive
> >



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Re: [Flexradio] [Fwd: ARLB030 FCC to Drop Morse Testing for All Amateur License Classes]

[Larry Loen]

Robert McGwier wrote:

>Frank and I are at GnuRadio Hackfest.  I doubt anyone who knows us would 
>categorize us as anything but techno-geeks.  We are constantly looking 
>at the lastest technology (we are about to have an OFDM system running 
>in GnuRadio for example) that could be of benefit to amateur radio in 
>particular and communications in general.  That said,  though we both 
>support this decision,  we are die hard CW users.  Almost without 
>exception,  when we sit down in front of a radio in either of our 
>homes,  the first thing either of us  touches is the paddle.  
>
>That said,  I believe the FCC has done a thing they think will help save 
>amateur radio.  That they would attempt this is surprising since they 
>could have just as easily made everyone do 20 wpm and killed the hobby 
>for sure and then auctioned off the spectrum.  I hope they are right and 
>this succeeds.  We must stop having our population grow one year older 
>per year.  This is a prescription for utter disaster.  The other 
>prescription for disaster is to sit on our backsides and fail to recruit 
>new people, as many as we can that are under 30 years old, into our 
>hobby.  Software Radio, Cognitive Radio, and other high tech toys are 
>good tools to use to recruit interesting your people.  USE THEM.
>
>It is up to each of us in the US to use this opportunity to do all we 
>can do for our hobby.
>
>May 2007 be a great year for Software Radio in particular and amateur 
>radio in general.
>
>Bob
>N4HY
>
>
>  
>


Amen and verily.

My son is licensed ("codeless Tech") and would have almost certainly 
learned the code in ages past.  Five minutes of talk with him would 
convince any of us of that.

If we can't interest _him_ in the code (and, believe me, I know I 
couldn't), then it's just a foregone conclusion that a code requirement 
is doing more harm than good.  Most of his friends don't even have 
Codeless Techs.  They're just the sort we used to get as a matter of 
course.  They find the whole code thing incomprehensible.  I can't even 
start the conversation.

There's lots of competition for tomorrow's hams out there we didn't use 
to have, such as computers and the internet, that require no licensing 
at all.  Competition where meaningful participation is nearly immediate 
and often very gratifying from the start.  Where expertise can grow 
gradually, at one's own rate.  Some may talk about "dumbing down," but 
the reality is, we're in competition with stuff that's a lot easier to 
get involved in.  For any hobby, even one with a service aspect 
attached, we all want regular feedback.  But, in the amateur service, 
that feedback has been too long delayed.

Even without the code standing in the way, it's not going to be easy, 
because we still need an exam-based hobby and service.  But, it's much 
better now that it was.  We can go for 15 year olds, but also for 30 
year olds in a way we just couldn't before.

Spread the word.  The code (as a requirement) is dead, long live amateur 
radio.


Larry  WO0Z


PS, I think _after_ they're in it a while, they'll get motivated to 
learn code.  It is, of course, intensely practical for much of what we 
like to do.  But, today, that needs to be something that becomes clear 
after a real, personal understanding of how propagation and radio really 
work.





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[Flexradio] Weak Signal Work on 6 meters

[Dave & Nancy Ridge]

I have a question about weak signal work on 6 meters using an SDR. Would the 
Edirol be a a better choice for 6 meter work? Is the best setting for 
sensitivity 192 or 96? I don't care about the panadapter view being wider on 
the 192 setting, just interested in the best signal to noise!. Now using a 
Delta 44 and am able to work scatter and tropo very well. It is great fun. 

Using a Down East preamp and 1K+ output into a 30' yagi.

The waterfall, panadapter, noise blanks and frequency resolution is the best! 
You always want more.

Thanks for your help,

Dave, W9DR, Punta Gorda, Florida ( EL 86SW Florida)
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Re: [Flexradio] Flex Noise Reduction

[Larry Taft]

Bill T even got the weather involved too.  Looks like another afternoon 
lost to learning a new trick.
Thanks, Larry

Robert McGwier wrote:
> Isn't it just awful?
>
> http://en.wikipedia.org/wiki/Cyclostationary
>
> Bob
>
>
>
> Larry Taft wrote:
>> OK McG, just what is the oxymoron "cyclostationary" ?
>>
>> Larry  K2LT
>>
>> Robert McGwier wrote:
>>  
>>> When you have "cyclostationary" noise of the buzzing (but not 
>>> impulsive   
>>
>>
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>>
>>   
>
>


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Re: [Flexradio] Weak Signal Work on 6 meters

[Tim Ellison]

I'm going to give this a shot and anyone feel free to jump in.

The FA-66 has an I/Q input gain control.  If you set this control to
have a lot of gain, it will be better for weak signal work, but at the
expense of strong signal handling.

The sampling rate does not have anything to do with the s/n ratio.  It
just process the signals twice as fast so that you do not have as much
latency as you would with a 96 KHz sampling rate, which may be of some
significance if you are doing CW.

The FA-66 does have the best dynamic range of ant of the supported sound
cards.

 
-Tim

Integrated Technical Services
www.itsco.com

"Si fractum non sit, id reficere"
-Unknown Roman consultant

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Dave & Nancy
Ridge
Sent: Sunday, December 17, 2006 1:14 PM
To: FlexRadio@flex-radio.biz
Subject: [Flexradio] Weak Signal Work on 6 meters

I have a question about weak signal work on 6 meters using an SDR. Would
the Edirol be a a better choice for 6 meter work? Is the best setting
for sensitivity 192 or 96? I don't care about the panadapter view being
wider on the 192 setting, just interested in the best signal to noise!.
Now using a Delta 44 and am able to work scatter and tropo very well. It
is great fun. 

Using a Down East preamp and 1K+ output into a 30' yagi.

The waterfall, panadapter, noise blanks and frequency resolution is the
best! You always want more.

Thanks for your help,

Dave, W9DR, Punta Gorda, Florida ( EL 86SW Florida)
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[Flexradio] How peculiar. Why am I being unsuscribed

[Jim Lux]

Maybe you can figure out where the "request" came from (i.e. 
originating IP address, etc.)



Received (twice) the following email:


From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: confirm 
Reply-To: [EMAIL PROTECTED]
Message-ID: <[EMAIL PROTECTED]>
Date: Sun, 17 Dec 2006 11:27:42 -0600
Precedence: bulk
X-BeenThere: flexradio@flex-radio.biz
X-Mailman-Version: 2.1.9.cp1
List-Id: Flex Radio Users 
X-List-Administrivia: yes
Sender: [EMAIL PROTECTED]
Errors-To: [EMAIL PROTECTED]
X-AntiAbuse: This header was added to track abuse, please include it 
with any abuse report
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Re: [Flexradio] S - Meter Emulation

[Jim Lux]

At 09:15 AM 12/17/2006, Larry Loen wrote:
>Double Da!!
>
>Giving 59, in many cases, is done for the kind of reason you say "fine"
>to someone inquiring "How are you" when, in fact, you have a terrible
>cold and your tax bill just rose a thousand bucks.


As in
UR 59, PLS RPT ALL


And for what it's worth, the "9" doesn't mean S-9... it means that 
you have "extremely strong signals" in an subjective rating scale.

Jim, W6RMK 



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Re: [Flexradio] How peculiar. Why am I being unsuscribed

[Ray Andrews]

Jim,

For what it's worth, don't feel alone.  I forwarded one of these off-list to 
the list owner earlier this morning.

73, Ray, K9DUR

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Re: [Flexradio] How peculiar. Why am I being unsuscribed

[Larry Taft]

Me too.  Larry K2LT

Ray Andrews wrote:
> Jim,
>
> For what it's worth, don't feel alone.  I forwarded one of these off-list to 
> the list owner earlier this morning.
>
> 73, Ray, K9DUR
>
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>
>   


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[Flexradio] SDR on 6 Meters

[Dave & Nancy Ridge]

Thanks Tim.

I have both the the Delta 44 and the Fa-66 Edirol. I have check 
both against a very weak sig that is steady on 6 meters. My measurements 
with the S meter, NOT the S Meter, Ho Ho, the real thing (dbm digital meter) 
is .5 to 3.0 dbm better with the Edirol. I wanted to know an unbais opinion 
from an expert. Thanks.

Kevin, 

I think you would throw rocks at your proiii if you tried the SDR on 
6. You need the right stuff along with the SDR

You need antenna switches (coax relays betwen the SDR and the Down East 
preamp, an amp that will take .5 watts to 50- 100  (I use a TE Systems Amp) 
depending on how much power you need to drive the 1K amp, (I use a 4cx800) 
antenna relay properly sequenced and you need a good directional antenna. (I 
use an M2) Single conversion on 6 meters is unheard of but there are many 
advantages.

Much fun on scatter and tropo!

Dave, W9DR
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Re: [Flexradio] [Fwd: ARLB030 FCC to Drop Morse Testing for All Amateur License Classes]

[KE5EUP]

All good points, it is my hope this will help all of amateur radio, I 
too believe that many will go on to learn code and this I hope will 
bring more young people into SDR, digital and all of amateur radio.
To every one on the list: May your holidays be bright and safe and you 
new year be prosperous.
Al
KE5EUP

John Basilotto wrote:
> Bob, well said.  Happy holidays.
>
> John P. Basilotto 
> W5GI
> Marketing and Product Manager
> FlexRadio Systems
> 512 535-5266
>
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Behalf Of Robert McGwier
> Sent: Sunday, December 17, 2006 10:56 AM
> To: [EMAIL PROTECTED]
> Cc: Flex Radio Reflector
> Subject: Re: [Flexradio] [Fwd: ARLB030 FCC to Drop Morse Testing for All
> Amateur License Classes]
>
>
> Frank and I are at GnuRadio Hackfest.  I doubt anyone who knows us would 
> categorize us as anything but techno-geeks.  We are constantly looking 
> at the lastest technology (we are about to have an OFDM system running 
> in GnuRadio for example) that could be of benefit to amateur radio in 
> particular and communications in general.  That said,  though we both 
> support this decision,  we are die hard CW users.  Almost without 
> exception,  when we sit down in front of a radio in either of our 
> homes,  the first thing either of us  touches is the paddle.  
>
> That said,  I believe the FCC has done a thing they think will help save 
> amateur radio.  That they would attempt this is surprising since they 
> could have just as easily made everyone do 20 wpm and killed the hobby 
> for sure and then auctioned off the spectrum.  I hope they are right and 
> this succeeds.  We must stop having our population grow one year older 
> per year.  This is a prescription for utter disaster.  The other 
> prescription for disaster is to sit on our backsides and fail to recruit 
> new people, as many as we can that are under 30 years old, into our 
> hobby.  Software Radio, Cognitive Radio, and other high tech toys are 
> good tools to use to recruit interesting your people.  USE THEM.
>
> It is up to each of us in the US to use this opportunity to do all we 
> can do for our hobby.
>
> May 2007 be a great year for Software Radio in particular and amateur 
> radio in general.
>
> Bob
> N4HY
>
>
> KE5EUP wrote:
>   
>> -
>>
>> SB QST @ ARL $ARLB030
>> ARLB030 FCC to Drop Morse Testing for All Amateur License Classes
>>
>> ZCZC AG30
>> QST de W1AW  
>> ARRL Bulletin 30  ARLB030
>> >From ARRL Headquarters  
>> Newington CT  December 16, 2006
>> To all radio amateurs 
>>
>> SB QST ARL ARLB030
>> ARLB030 FCC to Drop Morse Testing for All Amateur License Classes
>>
>>   
>> 
>
>
>   

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[Flexradio] Question about RF pre-amplifier

[petervn]

Question about RF pre-amplifier

 

I am showing my SDR1000 to different groups of HAM's (in the Netherlands).

Doing so I get lots of questions.

I was thinking that the RF preamp (SGA-6286) could be switched ON and OFF,  now 
I think that this is probable not true. 

Am I right? (I have no recent nor a complete schematic)

As I understand now it is:

Arial > [0 or -10dB] > [RF preamp] > [mixer] > [amplifier X dB or X+Y dB] > 
Soundcard

Can someone tell me if this OK? Than I can give the right answers.

Thanks  

73   Peter   pa0pvn

 
groeten Peter
petervn(a)hetnet.nl <mailto:[EMAIL PROTECTED]>  ; pa0pvn(a)hetnet.nl 
<mailto:[EMAIL PROTECTED]>   ;
pa0pvn(a)gmail.com ; pa0pvn(a)amsat.org .
 
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Re: [Flexradio] Question about RF pre-amplifier

[Ahti Aintila]

On 17/12/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> Question about RF pre-amplifier
>
> Arial > [0 or -10dB] > [RF preamp] > [mixer] > [amplifier X dB or X+Y dB] > 
> Soundcard
>
Peter,
That is almost right. The RF preamp is always on, but [amplifier X dB or Y dB].

73, Ahti OH2RZ

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Re: [Flexradio] How peculiar. Why am I being unsuscribed

[Marzan, Edwin]

The same has occurred here. I thought maybe my employer was trying to 
unsubscribe me. Any ideas?
 
Edwin Marzan
AB2VW



From: [EMAIL PROTECTED] on behalf of Jim Lux
Sent: Sun 12/17/2006 2:12 PM
To: flexradio@flex-radio.biz
Subject: [Flexradio] How peculiar. Why am I being unsuscribed



Maybe you can figure out where the "request" came from (i.e.
originating IP address, etc.)



Received (twice) the following email:


From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: confirm 
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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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Re: [Flexradio] How peculiar. Why am I being unsuscribed

[FlexRadio - Eric]

We have contacted the list administrator concerning this issue.  Rest
assured that you cannot be unsubscribed without acknowledging the email you
are sent.

This is either a bug, a virus, or someone with more time than sense on their
hands.  In any case, we are aware of this little problem and are taking
appropriate measures.


Eric Wachsmann
FlexRadio Systems

> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> radio.biz] On Behalf Of Jim Lux
> Sent: Sunday, December 17, 2006 1:12 PM
> To: flexradio@flex-radio.biz
> Subject: [Flexradio] How peculiar. Why am I being unsuscribed
> 
> Maybe you can figure out where the "request" came from (i.e.
> originating IP address, etc.)
> 
> 
> 
> Received (twice) the following email:
> 
> 
> From: [EMAIL PROTECTED]
> To: [EMAIL PROTECTED]
> Subject: confirm 
> Reply-To: [EMAIL PROTECTED]
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> radio.biz>
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> 
> 
> 
> 
> 
> James Lux, P.E.
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> Flight Communications Systems Section
> Jet Propulsion Laboratory, Mail Stop 161-213
> 4800 Oak Grove Drive
> Pasadena CA 91109
> tel: (818)354-2075
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> 
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[Flexradio] Any mdb-file with Region 1 frequencies?

[Gordon & Lois Duff]

I have Access and am willing to do this, but it will have to wait until
January 1.

Gordon, KA2NLM


 


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Re: [Flexradio] Why not a Multi Region BandText installation?

[Ahti Aintila]

Gordon and other Flexers,

Thanks a lot. I received the BandText table from Bodo, DJ9CS, and
found an unused ACCESS in my office computer. Now the new PowerSDR.mdb
works already.

Maybe, Tim or Bodo are going to upload the table to the Knowledge
Base. However, I think that PowerSDR installation should already build
the proper mdb-file according to the selected Region number. Not very
many hams have access to the ACCESS.

73, Ahti OH2RZ

On 17/12/06, Gordon & Lois Duff <[EMAIL PROTECTED]> wrote:
> I have Access and am willing to do this, but it will have to wait until
> January 1.
>
> Gordon, KA2NLM
>
>
>
>
>
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[Flexradio] AGC and Other Optomized Receiver Settings

[Gerald Capodieci]

I. M-Audio Software Changes
   1. DMA buffer to 1024
   2. Codec Sample Rate: Uncheck the "Rate Locked" box and the 
  "Reset Rate When Idle" box.
   3. Variable Signal Levels: Outputs= -10dBv, Ins1=  +4, Ins2= +4, 
   Ins3= -10
  In upper left hand corner of the PowerSDR main screen click the 'Setup" 
option.
II. Audio Tab PowerSDR Software: Buffer = 1024
III. DSP Tab
V. Options Tab:
  1. NR: Taps = 90, Delay = 20, Gain = 50, Block LMS is 
  checked
  2. Buffer Size = 1024, Window = Hanning, Noise Blanker = 
  20, Noise Blanker 2 = 14
VI. AGC Changes
  1. Go back to the AGC Button on Main Screen set to "Custom" 
  and the Preamp = "Med", Audio ~ 75
  2. Click the Setup tab on the main screen followed by the DSP tab. 
  3. Then Click 'AGC/ALC" tab,  set Slope(db) = 3, MaxGain~ 75 (this 
  also changes the gain on Main Screen), Attack= 4, Decay = 10, 
  Hang= 140, Hang Threshold= all the way to the left.
  VIII. Optional Filter Settings
Suggest below matrix of settings  I suggest an an arbitrary button-labeling  
convention to  indicate its underlying settings. The first number is the band 
pass width; the second is the low cutoff. Example: [ 4  .1 ] has a band pass of 
4 KHz and a low cut off of 100 Hz.  
1.  On the main screen, lower right, right click any one of the filters 
buttons and select "Configure". This brings up a screen that allows the 
individual filters to be reconfigured. Adjust the High and the Low cutoffs, the 
Width (band pass) on the bottom will 
adjust it self. CAUTION: the database can take only  a limited number of 
settings at once, perhaps 10. Then it locks showing a memory exception causing 
all previous settings to be lost. To prevent the loss, Exit the software 
completely periodically to automatically save current work 
2. I'm using the following matrix of filter settings:
[4.3][4   .2][4.1]
[3.3][3   .2][3.1]
[2.3][2   .2][2.1]
[1.7 .3][VAR][1.7 .1]
I start with [3  .2] and select around till I find a best fit. Under 
very high noise conditions such as today, 16Dec2006, during a 
high sunspot condition [2.  .3] seems to be most readable.  
   
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Re: [Flexradio] Why not a Multi Region BandText installation?

[Marzan, Edwin]

Greetings,
 
Could one just delete the existing table and replace it with the new table? If 
that is the case I'll try it on my own system and if it works I'll be willing 
to do the swap for others as well.
 
I'm very familiar with Microsoft Access and use it daily at work.
Let me know if I can help.
 
Regards
 
Edwin Marzan
AB2VW



From: [EMAIL PROTECTED] on behalf of Ahti Aintila
Sent: Sun 12/17/2006 6:06 PM
To: Gordon & Lois Duff
Cc: flexradio@flex-radio.biz
Subject: Re: [Flexradio] Why not a Multi Region BandText installation?



Gordon and other Flexers,

Thanks a lot. I received the BandText table from Bodo, DJ9CS, and
found an unused ACCESS in my office computer. Now the new PowerSDR.mdb
works already.

Maybe, Tim or Bodo are going to upload the table to the Knowledge
Base. However, I think that PowerSDR installation should already build
the proper mdb-file according to the selected Region number. Not very
many hams have access to the ACCESS.

73, Ahti OH2RZ

On 17/12/06, Gordon & Lois Duff <[EMAIL PROTECTED]> wrote:
> I have Access and am willing to do this, but it will have to wait until
> January 1.
>
> Gordon, KA2NLM
>
>
>
>
>
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[Flexradio] Keystroke table for PowerSDR?

[Mike Walsh]

Hi,

Is there a document that shows the mapping of keystrokes to PowerSDR
functions?

Thanks,

Mike - ke5akl


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Re: [Flexradio] AGC and Other Optomized Receiver Settings

[Marzan, Edwin]

Thank you. This can be very helpful. I know the settings have to do with a 
person's particular taste as per the KB article by Phil Harman VK6APH on this 
subject. I was hoping that eventually we can figure out how to set up 
"profiles" for different operating styles. Perhaps something like, weak signal, 
contest, rag chewing or somesuch.
 
The KB article was a bit deep and even though I read it a few times still 
cannot tell the difference when I change the settings on the console. 
Additionally, band conditions have been so bad that I barely have any signals 
out there to experiment with.
 
Edwin Marzan
AB2VW



From: [EMAIL PROTECTED] on behalf of Gerald Capodieci
Sent: Sun 12/17/2006 6:34 PM
To: flexradio@flex-radio.biz; [EMAIL PROTECTED]
Subject: [Flexradio] AGC and Other Optomized Receiver Settings



I. M-Audio Software Changes
   1. DMA buffer to 1024
   2. Codec Sample Rate: Uncheck the "Rate Locked" box and the
  "Reset Rate When Idle" box.
   3. Variable Signal Levels: Outputs= -10dBv, Ins1=  +4, Ins2= +4,
   Ins3= -10
  In upper left hand corner of the PowerSDR main screen click the 'Setup" 
option.
II. Audio Tab PowerSDR Software: Buffer = 1024
III. DSP Tab
V. Options Tab:
  1. NR: Taps = 90, Delay = 20, Gain = 50, Block LMS is
  checked
  2. Buffer Size = 1024, Window = Hanning, Noise Blanker =
  20, Noise Blanker 2 = 14
VI. AGC Changes
  1. Go back to the AGC Button on Main Screen set to "Custom"
  and the Preamp = "Med", Audio ~ 75
  2. Click the Setup tab on the main screen followed by the DSP tab.
  3. Then Click 'AGC/ALC" tab,  set Slope(db) = 3, MaxGain~ 75 (this
  also changes the gain on Main Screen), Attack= 4, Decay = 10,
  Hang= 140, Hang Threshold= all the way to the left.
  VIII. Optional Filter Settings
Suggest below matrix of settings  I suggest an an arbitrary button-labeling  
convention to  indicate its underlying settings. The first number is the band 
pass width; the second is the low cutoff. Example: [ 4  .1 ] has a band pass of 
4 KHz and a low cut off of 100 Hz. 
1.  On the main screen, lower right, right click any one of the filters
buttons and select "Configure". This brings up a screen that allows the 
individual filters to be reconfigured. Adjust the High and the Low cutoffs, the 
Width (band pass) on the bottom will
adjust it self. CAUTION: the database can take only  a limited number of 
settings at once, perhaps 10. Then it locks showing a memory exception causing 
all previous settings to be lost. To prevent the loss, Exit the software 
completely periodically to automatically save current work
2. I'm using the following matrix of filter settings:
[4.3][4   .2][4.1]
[3.3][3   .2][3.1]
[2.3][2   .2][2.1]
[1.7 .3][VAR][1.7 .1]
I start with [3  .2] and select around till I find a best fit. Under
very high noise conditions such as today, 16Dec2006, during a
high sunspot condition [2.  .3] seems to be most readable. 
  
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Re: [Flexradio] New band freq changes

[Charles Greene]

Works like a charm.

73, Chas

At 12:20 AM 12/17/2006, FlexRadio - Eric wrote:

>There are a few options for current SVN users to bring their database up to
>date:
>
>#2 (easy, requires MS Access): If you have MS Access, open the PowerSDR.mdb
>file mentioned above and simply delete the BandText table.  The next time
>you start the application it will rebuild with the new data.  This will
>preserve all of your setup and calibration.



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Re: [Flexradio] AGC and Other Optimized Receiver Settings

[Tim Ellison]

Jerry,

What sampling rate are you using on the D44?

Also, what do you set your DSP buffer size to?

 
-Tim

Integrated Technical Services
www.itsco.com

"Si fractum non sit, id reficere"
-Unknown Roman consultant

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Gerald Capodieci
Sent: Sunday, December 17, 2006 6:34 PM
To: flexradio@flex-radio.biz; [EMAIL PROTECTED]
Subject: [Flexradio] AGC and Other Optomized Receiver Settings

I. M-Audio Software Changes
   1. DMA buffer to 1024
   2. Codec Sample Rate: Uncheck the "Rate Locked" box and the 
  "Reset Rate When Idle" box.
   3. Variable Signal Levels: Outputs= -10dBv, Ins1=  +4, Ins2= +4, 
   Ins3= -10
  In upper left hand corner of the PowerSDR main screen click the
'Setup" option.
II. Audio Tab PowerSDR Software: Buffer = 1024
III. DSP Tab
V. Options Tab:
  1. NR: Taps = 90, Delay = 20, Gain = 50, Block LMS is 
  checked
  2. Buffer Size = 1024, Window = Hanning, Noise Blanker = 
  20, Noise Blanker 2 = 14
VI. AGC Changes
  1. Go back to the AGC Button on Main Screen set to "Custom" 
  and the Preamp = "Med", Audio ~ 75
  2. Click the Setup tab on the main screen followed by the DSP tab. 
  3. Then Click 'AGC/ALC" tab,  set Slope(db) = 3, MaxGain~ 75 (this 
  also changes the gain on Main Screen), Attack= 4, Decay = 10, 
  Hang= 140, Hang Threshold= all the way to the left.
  VIII. Optional Filter Settings
Suggest below matrix of settings  I suggest an an arbitrary
button-labeling  convention to  indicate its underlying settings. The
first number is the band pass width; the second is the low cutoff.
Example: [ 4  .1 ] has a band pass of 4 KHz and a low cut off of 100 Hz.

1.  On the main screen, lower right, right click any one of the filters 
buttons and select "Configure". This brings up a screen that allows the
individual filters to be reconfigured. Adjust the High and the Low
cutoffs, the Width (band pass) on the bottom will 
adjust it self. CAUTION: the database can take only  a limited number of
settings at once, perhaps 10. Then it locks showing a memory exception
causing all previous settings to be lost. To prevent the loss, Exit the
software completely periodically to automatically save current work 
2. I'm using the following matrix of filter settings:
[4.3][4   .2][4.1]
[3.3][3   .2][3.1]
[2.3][2   .2][2.1]
[1.7 .3][VAR][1.7 .1]
I start with [3  .2] and select around till I find a best fit. Under 
very high noise conditions such as today, 16Dec2006, during a 
high sunspot condition [2.  .3] seems to be most readable.  
   
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[Flexradio] SDR on 6 Meters

[Dave & Nancy Ridge]

Kevin

Down East preamp is at the shack. You need low loss feed line if over 100 feet. 
If you put the preamp at the antenna, there are all kinds of issues. 

If you need further info, please e-mail at my e-mail address on QRZ.

73, Dave, W9DR
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Re: [Flexradio] Keystroke table for PowerSDR?

[Dale Boresz]

Hello Mike,

I think this is what you are looking for:
http://kb.flex-radio.com/article.aspx?id=10253

73, Dale
WA8SRA


Mike Walsh wrote:

>Hi,
>
>Is there a document that shows the mapping of keystrokes to PowerSDR
>functions?
>
>Thanks,
>
>Mike - ke5akl
>
>
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>


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Re: [Flexradio] Why not a Multi Region BandText installation?

[Ahti Aintila]

On 18/12/06, Marzan, Edwin <[EMAIL PROTECTED]> wrote:
> Greetings,
>
> Could one just delete the existing table and replace it with the new table? 
> If that is the case I'll try it on my own system and if it works I'll be 
> willing to do the swap for others as well.
>
That's it how I did it. Using MS Access I opened the PowerSDR.mdb
file, clicked open the BandText table, deleted the the content of the
table and pasted my own data.

73, Ahti OH2RZ

>
> Gordon and other Flexers,
>
> Thanks a lot. I received the BandText table from Bodo, DJ9CS, and
> found an unused ACCESS in my office computer. Now the new PowerSDR.mdb
> works already.
>
> Maybe, Tim or Bodo are going to upload the table to the Knowledge
> Base. However, I think that PowerSDR installation should already build
> the proper mdb-file according to the selected Region number. Not very
> many hams have access to the ACCESS.
>
> 73, Ahti OH2RZ
>
> On 17/12/06, Gordon & Lois Duff <[EMAIL PROTECTED]> wrote:
> > I have Access and am willing to do this, but it will have to wait until
> > January 1.
> >
> > Gordon, KA2NLM
> >
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Re: [Flexradio] How peculiar. Why am I being unsuscribed

[Jim Lux]

At 11:23 AM 12/17/2006, Ray Andrews wrote:
>Jim,
>
>For what it's worth, don't feel alone.  I forwarded one of these 
>off-list to the list owner earlier this morning.
>
>73, Ray, K9DUR

I figured it was either a glitch with the list server OR there's a 
novel new virus/worm that, after harvesting names from a mailing 
list, sends unsubscribe requests.  (Particularly since I actually got 
TWO of them, a minute apart).

Jim




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Re: [Flexradio] AGC and Other Optomized Receiver Settings

[k6kdk]

AGC Optimized (optomized,sic) for what  ?

Pretty soon I am going to be forced to re-quote here the excellent article
that was written for the TT Orion owners manual (you can download it from
the TT site) regarding optimizing SDR AGCs for  and  band conditons.   It should be re-quoted, paraphrased.
plagiarized, what-have-you and included in the Flex knowledge base.  Should
be a highly recommended read (required) for all Flexers.

-K6KDK


- Original Message - 
From: "Gerald Capodieci" <[EMAIL PROTECTED]>
To: ; <[EMAIL PROTECTED]>
Sent: Sunday, December 17, 2006 3:34 PM
Subject: [Flexradio] AGC and Other Optomized Receiver Settings


> I. M-Audio Software Changes
>   1. DMA buffer to 1024
>   2. Codec Sample Rate: Uncheck the "Rate Locked" box and the
>  "--etc.etc.etc.." 


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