[Flexradio] VAC and DM 780

[Dennis Kippa]

Bought the VAC program and got it installed.  I do not get any hint of a
water fall with DM 780.  I have set up VAC both ways I have found in the
help files with no results.  JT 65HF is also dead.  I have tried
configurations many deferent ways.

Any help would be greatly appreciated.  Using MME in VAC control brecause
the other settings lock things up.

Dennis
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Re: [Flexradio] Antenna rotor/interface to PC?

[Mike Penkas]

Pablo, EA4TX, sells an excellent interface that you can connect to virtually 
any rotor, commercial or homebrew.  The problem is that it interfaces via 
parallel port.  He has come up with a new USB interfaced controller but doesn't 
show it on his product page but it appears to be for sale.
I have used the parallel port version for many years, without fail. URL of new 
USB model is:
http://www.ea4tx.com/wp/?p=414
Mike WA8EBM


Sent from my iPad

On Jan 2, 2012, at 9:46 PM, Bill Ackerman  wrote:

> Another dumb question from a newcomer to the hobby:  What are the issues I 
> need to consider in selecting an antenna rotor/interface to use with my Flex 
> 3000? I'm graduating to a beam antenna. While not immediately interested in 
> contesting and logging apps, I want to factor those capabilities into my 
> purchase decision. I've got a good handle on the physical requirements in 
> terms of weight and wind, but am pretty much clueless beyond that. Thanks for 
> any suggestions for brands of rotor interfaces that play well with PowerSDR 
> and other applications.
> 
> 73,
> Bill Ackerman, KF5MTW
> 
> 
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Re: [Flexradio] Antenna rotor/interface to PC?

[Keith Goobie]

Look at DDUtil and the rotators that it supports.  You have a few options.

Keith
VA3YC


On 1/2/12 9:46 PM, "Bill Ackerman"  wrote:

> Another dumb question from a newcomer to the hobby:  What are the issues
> I need to consider in selecting an antenna rotor/interface to use with
> my Flex 3000? I'm graduating to a beam antenna. While not immediately
> interested in contesting and logging apps, I want to factor those
> capabilities into my purchase decision. I've got a good handle on the
> physical requirements in terms of weight and wind, but am pretty much
> clueless beyond that. Thanks for any suggestions for brands of rotor
> interfaces that play well with PowerSDR and other applications.
> 
> 73,
> Bill Ackerman, KF5MTW
> 
> 
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-- 
Keith Goobie
ke...@goobie.org
Richmond Hill, Ontario



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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[William H. Fite]

My hair is as white as the driven snow...dammit!



On Mon, Jan 2, 2012 at 10:23 PM, dan edwards  wrote:

> i guess some of us REAL old timers will always feel that a REAL ham can
> copy 20
>  wpm CW or better, with no pencil...
>
>
> but only the really crusty old farts ha ! 73, w5xz, dan
>
>
> --- On *Tue, 1/3/12, William H. Fite * wrote:
>
>
> From: William H. Fite 
>
> Subject: Re: [Flexradio] Flex 1500 using External Transmitter for AM
> To: "Steven Hess" 
> Cc: "FlexRadio reflector" 
> Date: Tuesday, January 3, 2012, 3:02 AM
>
>
> I'm quite proficient at CW (having done it commercially) but was licensed
> under the no-code rules.  The code requirement was dropped by the FCC not
> for any of the nefarious reasons that the Old Timers ruminate over
> endlessly but simply because code was recognized no longer to be a
> necessary element of amateur communication.  There was little sense, the
> Commissioners reasoned, in discouraging would-be amateur operators by
> requiring them to learn an arcane skill that they might never be called
> upon to use.
>
> Doubtless, someone is going to rise up and denounce that reasoning.  Go to
> it; we've all heard about EMPs, and solar storms, and, and, and.  We'll
> more or less cheerfully listen to it again if someone needs to say it.
>
> The fact is that many of us who are code proficient don't operate CW for
> the same reason that we don't drive 1948 Hudsons.  That doesn't mean that
> CW is bad or that someone who chooses to pound away is an old fud.  Hey, I
> play with steam engines and Stirling engines and they haven't been much
> used in over a hundred years.  And I love straight key night.  Last year I
> had a lovely chat with a lady in her 80s who was happily rattling along at
> about 15wpm, clean and regular as clockwork.
>
> Let's live and let live, as someone said earlier today; there is plenty of
> spectrum for all of us.  But that will only happen when the Old Timers quit
> denouncing people for not learning code.
>
> Bill
>
>
>
>
> On Mon, Jan 2, 2012 at 9:35 PM, Steven Hess 
> http://mc/compose?to=flameb...@gmail.com>>
> wrote:
>
> > Some of us actually passed the 5WPM Novice became and became Technicians
> > remaining that until the code requirements were dropped.  5WPM was pretty
> > much no code. I didn't think I'd pass the CW portion of the test but
> > guessed my way to passing on what little I did copy.
> >
> > On Mon, Jan 2, 2012 at 6:03 PM, Tony Estep 
> > http://mc/compose?to=estept...@gmail.com>>
> wrote:
> >
> > > On Mon, Jan 2, 2012 at 7:40 PM, Steven Hess 
> > > http://mc/compose?to=flameb...@gmail.com>>
> wrote:
> > > > For some of us this it is almost impossible.
> > > 
> > > Ah, ham radio changes and evolves. The no-code license was a big
> > > controversy in its day, but now just a few years later no-code hams
> > > are in the majority. About half of U.S. licensees are technicians, and
> > > the other half also contains many no-code ops, with the number
> > > steadily increasing.  As their ranks have grown, they have come to
> > > represent a significant market for manufacturers to serve. In Japan,
> > > where there are twice as many licensed hams as in the U.S., VHF
> > > licenses and gear dominate. I would guess that in this country HF gear
> > > leads the market by dollar volume, but maybe not by number of units
> > > sold, and many of today's buyers of HF gear will never use it for CW.
> > > It's plain in reading postings on ham discussion groups that no-code
> > > hams have their own preferences in operating style, equipment, and
> > > activities. But hey, there's enough spectrum for all.
> > >
> > > Tony KT0NY
> > >
> > >
> > >
> > > --
> > > http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352
> > >
> > > ___
> > > FlexRadio Systems Mailing List
> > > FlexRadio@flex-radio.biz
> > > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> > > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> > > Knowledge Base: http://kc.flexradio.com/  Homepage:
> > > http://www.flexradio.com/
> > >
> >
> >
> >
> > --
> > 
> > Steven L Hess ARS KC6KGE DM05gd22
> > Skype user flamebait Cell 661 487 0357 (Facetime)
> > Google Voice 661 769 6201
> > openSUSE  Linux 11.4
> > ___
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> > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> > Knowledge Base: http://kc.flexradio.com/  Homepage:
> > http://www.flexradio.com/
> >
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Re: [Flexradio] Antenna rotor/interface to PC?

[William H. Fite]

Green Heron makes fine controllers that will interface with just about
any/everything.  Pricey, but..





On Mon, Jan 2, 2012 at 9:46 PM, Bill Ackerman  wrote:

> Another dumb question from a newcomer to the hobby:  What are the issues I
> need to consider in selecting an antenna rotor/interface to use with my
> Flex 3000? I'm graduating to a beam antenna. While not immediately
> interested in contesting and logging apps, I want to factor those
> capabilities into my purchase decision. I've got a good handle on the
> physical requirements in terms of weight and wind, but am pretty much
> clueless beyond that. Thanks for any suggestions for brands of rotor
> interfaces that play well with PowerSDR and other applications.
>
> 73,
> Bill Ackerman, KF5MTW
>
>
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> http://www.mail-archive.com/**flexradio%40flex-radio.biz/
> Knowledge Base: http://kc.flexradio.com/  Homepage:
> http://www.flexradio.com/
>
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[dan edwards]

i sweated BULLETS to copy 13 wpm in Dallas in 1969

--- On Tue, 1/3/12, dan edwards  wrote:

From: dan edwards 
Subject: Re: [Flexradio] Flex 1500 using External Transmitter for AM
To: "Steven Hess" , "William H. Fite" 
Cc: "FlexRadio reflector" 
Date: Tuesday, January 3, 2012, 3:23 AM

i guess some of us REAL old timers will always feel that a REAL ham can copy 
20 wpm CW or better, with no pencil...

but only the really crusty old farts ha !     73, w5xz, dan

--- On Tue, 1/3/12, William H. Fite  wrote:

From: William H. Fite 
Subject: Re: [Flexradio] Flex 1500 using External Transmitter for AM
To: "Steven Hess" 
Cc: "FlexRadio reflector" 
Date: Tuesday, January 3, 2012, 3:02 AM

I'm quite proficient at CW (having done it commercially) but was licensed
under the no-code rules.  The code requirement was dropped by the FCC not
for any of the nefarious reasons that the Old Timers ruminate over
endlessly but simply because code was recognized no longer to be a
necessary element of amateur communication.  There was little sense, the
Commissioners reasoned, in discouraging would-be amateur operators by
requiring them to learn an arcane skill that they might never be called
upon to use.

Doubtless, someone is going to rise up and denounce that reasoning.  Go to
it; we've all heard about EMPs, and solar storms, and, and, and.  We'll
more or less cheerfully listen to it again if someone needs to say it.

The fact is that many of us who are code proficient don't operate CW for
the same reason that we don't drive 1948 Hudsons.  That doesn't mean that
CW is bad or that someone who chooses to pound away is an old fud.  Hey, I
play with steam engines and Stirling engines and they haven't been much
used in over a hundred years.  And I love straight key night.  Last year I
had a lovely chat with a lady in her 80s who was happily rattling along at
about 15wpm, clean and regular as clockwork.

Let's live and let live, as someone said earlier today; there is plenty of
spectrum for all of us.  But that will only happen when the Old Timers quit
denouncing people for not learning code.

Bill




On Mon, Jan 2, 2012 at 9:35 PM, Steven Hess  wrote:

> Some of us actually passed the 5WPM Novice became and became Technicians
> remaining that until the code requirements were dropped.  5WPM was pretty
> much no code. I didn't think I'd pass the CW portion of the test but
> guessed my way to passing on what little I did copy.
>
> On Mon, Jan 2, 2012 at 6:03 PM, Tony Estep  wrote:
>
> > On Mon, Jan 2, 2012 at 7:40 PM, Steven Hess  wrote:
> > > For some of us this it is almost impossible.
> > 
> > Ah, ham radio changes and evolves. The no-code license was a big
> > controversy in its day, but now just a few years later no-code hams
> > are in the majority. About half of U.S. licensees are technicians, and
> > the other half also contains many no-code ops, with the number
> > steadily increasing.  As their ranks have grown, they have come to
> > represent a significant market for manufacturers to serve. In Japan,
> > where there are twice as many licensed hams as in the U.S., VHF
> > licenses and gear dominate. I would guess that in this country HF gear
> > leads the market by dollar volume, but maybe not by number of units
> > sold, and many of today's buyers of HF gear will never use it for CW.
> > It's plain in reading postings on ham discussion groups that no-code
> > hams have their own preferences in operating style, equipment, and
> > activities. But hey, there's enough spectrum for all.
> >
> > Tony KT0NY
> >
> >
> >
> > --
> > http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352
> >
> > ___
> > FlexRadio Systems Mailing List
> > FlexRadio@flex-radio.biz
> > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> > Knowledge Base: http://kc.flexradio.com/  Homepage:
> > http://www.flexradio.com/
> >
>
>
>
> --
> 
> Steven L Hess ARS KC6KGE DM05gd22
> Skype user flamebait Cell 661 487 0357 (Facetime)
> Google Voice 661 769 6201
> openSUSE  Linux 11.4
> ___
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>
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[dan edwards]

i guess some of us REAL old timers will always feel that a REAL ham can copy 
20 wpm CW or better, with no pencil...

but only the really crusty old farts ha !     73, w5xz, dan

--- On Tue, 1/3/12, William H. Fite  wrote:

From: William H. Fite 
Subject: Re: [Flexradio] Flex 1500 using External Transmitter for AM
To: "Steven Hess" 
Cc: "FlexRadio reflector" 
Date: Tuesday, January 3, 2012, 3:02 AM

I'm quite proficient at CW (having done it commercially) but was licensed
under the no-code rules.  The code requirement was dropped by the FCC not
for any of the nefarious reasons that the Old Timers ruminate over
endlessly but simply because code was recognized no longer to be a
necessary element of amateur communication.  There was little sense, the
Commissioners reasoned, in discouraging would-be amateur operators by
requiring them to learn an arcane skill that they might never be called
upon to use.

Doubtless, someone is going to rise up and denounce that reasoning.  Go to
it; we've all heard about EMPs, and solar storms, and, and, and.  We'll
more or less cheerfully listen to it again if someone needs to say it.

The fact is that many of us who are code proficient don't operate CW for
the same reason that we don't drive 1948 Hudsons.  That doesn't mean that
CW is bad or that someone who chooses to pound away is an old fud.  Hey, I
play with steam engines and Stirling engines and they haven't been much
used in over a hundred years.  And I love straight key night.  Last year I
had a lovely chat with a lady in her 80s who was happily rattling along at
about 15wpm, clean and regular as clockwork.

Let's live and let live, as someone said earlier today; there is plenty of
spectrum for all of us.  But that will only happen when the Old Timers quit
denouncing people for not learning code.

Bill




On Mon, Jan 2, 2012 at 9:35 PM, Steven Hess  wrote:

> Some of us actually passed the 5WPM Novice became and became Technicians
> remaining that until the code requirements were dropped.  5WPM was pretty
> much no code. I didn't think I'd pass the CW portion of the test but
> guessed my way to passing on what little I did copy.
>
> On Mon, Jan 2, 2012 at 6:03 PM, Tony Estep  wrote:
>
> > On Mon, Jan 2, 2012 at 7:40 PM, Steven Hess  wrote:
> > > For some of us this it is almost impossible.
> > 
> > Ah, ham radio changes and evolves. The no-code license was a big
> > controversy in its day, but now just a few years later no-code hams
> > are in the majority. About half of U.S. licensees are technicians, and
> > the other half also contains many no-code ops, with the number
> > steadily increasing.  As their ranks have grown, they have come to
> > represent a significant market for manufacturers to serve. In Japan,
> > where there are twice as many licensed hams as in the U.S., VHF
> > licenses and gear dominate. I would guess that in this country HF gear
> > leads the market by dollar volume, but maybe not by number of units
> > sold, and many of today's buyers of HF gear will never use it for CW.
> > It's plain in reading postings on ham discussion groups that no-code
> > hams have their own preferences in operating style, equipment, and
> > activities. But hey, there's enough spectrum for all.
> >
> > Tony KT0NY
> >
> >
> >
> > --
> > http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352
> >
> > ___
> > FlexRadio Systems Mailing List
> > FlexRadio@flex-radio.biz
> > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> > Knowledge Base: http://kc.flexradio.com/  Homepage:
> > http://www.flexradio.com/
> >
>
>
>
> --
> 
> Steven L Hess ARS KC6KGE DM05gd22
> Skype user flamebait Cell 661 487 0357 (Facetime)
> Google Voice 661 769 6201
> openSUSE  Linux 11.4
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Re: [Flexradio] Flex 5000 Display Centering

[William H. Fite]

No, it has been around lots longer than that.


On Mon, Jan 2, 2012 at 9:50 PM, Don Plunkett  wrote:

> I thought that this was a bug introduced in 2.2.3 and that there was a
> workaround for it ... it is very annoying ... I was sure that I was told
> that when I upgraded (shortly after I bought the Flex) but I haven't  had a
> chance to follow it up with Tim.
>
> Don
>
> VA6FH (love this radio ... nothing better!)
>
> -Original Message-
> From: flexradio-boun...@flex-radio.biz
> [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Guy Harris
> Sent: January-02-12 7:35 AM
> To: flexradio@flex-radio.biz
> Subject: Re: [Flexradio] Flex 5000 Display Centering
>
> Rick,
>
> I believe it has something to do with the IF frequency being 9kHz(?).
>
> ~~Guy
>
>
>
> On 1/2/2012 6:14 AM, Rick Lehman wrote:
> > Happy New Year Flexers
> >
> > I am using the Flex5000.  I have noticed that when setting the panadapter
> display width to settings of 1X and 0.5X  the listening bandwidth cannot be
> centered.  On USB for example the listening frequency is approximately 80%
> shifted to the right rather than being centered in the middle of the
> display
> when using the 0.5X setting.The pan slider is inoperable when using
> 0.5x.  This is not a big deal, but when a station is operating split the
> upper band can be partially or fully off the display.  Does anyone know of
> any setting adjustments that can be used to correct this when using 0.5X
> and
> 1.0X display settings?
> >
> > Rick- WB4EJC
> > Coconut Creek, Fl (near Ft Lauderdale)
> > ___
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> > http://www.flexradio.com/
>
>
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[William H. Fite]

I'm quite proficient at CW (having done it commercially) but was licensed
under the no-code rules.  The code requirement was dropped by the FCC not
for any of the nefarious reasons that the Old Timers ruminate over
endlessly but simply because code was recognized no longer to be a
necessary element of amateur communication.  There was little sense, the
Commissioners reasoned, in discouraging would-be amateur operators by
requiring them to learn an arcane skill that they might never be called
upon to use.

Doubtless, someone is going to rise up and denounce that reasoning.  Go to
it; we've all heard about EMPs, and solar storms, and, and, and.  We'll
more or less cheerfully listen to it again if someone needs to say it.

The fact is that many of us who are code proficient don't operate CW for
the same reason that we don't drive 1948 Hudsons.  That doesn't mean that
CW is bad or that someone who chooses to pound away is an old fud.  Hey, I
play with steam engines and Stirling engines and they haven't been much
used in over a hundred years.  And I love straight key night.  Last year I
had a lovely chat with a lady in her 80s who was happily rattling along at
about 15wpm, clean and regular as clockwork.

Let's live and let live, as someone said earlier today; there is plenty of
spectrum for all of us.  But that will only happen when the Old Timers quit
denouncing people for not learning code.

Bill




On Mon, Jan 2, 2012 at 9:35 PM, Steven Hess  wrote:

> Some of us actually passed the 5WPM Novice became and became Technicians
> remaining that until the code requirements were dropped.  5WPM was pretty
> much no code. I didn't think I'd pass the CW portion of the test but
> guessed my way to passing on what little I did copy.
>
> On Mon, Jan 2, 2012 at 6:03 PM, Tony Estep  wrote:
>
> > On Mon, Jan 2, 2012 at 7:40 PM, Steven Hess  wrote:
> > > For some of us this it is almost impossible.
> > 
> > Ah, ham radio changes and evolves. The no-code license was a big
> > controversy in its day, but now just a few years later no-code hams
> > are in the majority. About half of U.S. licensees are technicians, and
> > the other half also contains many no-code ops, with the number
> > steadily increasing.  As their ranks have grown, they have come to
> > represent a significant market for manufacturers to serve. In Japan,
> > where there are twice as many licensed hams as in the U.S., VHF
> > licenses and gear dominate. I would guess that in this country HF gear
> > leads the market by dollar volume, but maybe not by number of units
> > sold, and many of today's buyers of HF gear will never use it for CW.
> > It's plain in reading postings on ham discussion groups that no-code
> > hams have their own preferences in operating style, equipment, and
> > activities. But hey, there's enough spectrum for all.
> >
> > Tony KT0NY
> >
> >
> >
> > --
> > http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352
> >
> > ___
> > FlexRadio Systems Mailing List
> > FlexRadio@flex-radio.biz
> > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> > Knowledge Base: http://kc.flexradio.com/  Homepage:
> > http://www.flexradio.com/
> >
>
>
>
> --
> 
> Steven L Hess ARS KC6KGE DM05gd22
> Skype user flamebait Cell 661 487 0357 (Facetime)
> Google Voice 661 769 6201
> openSUSE  Linux 11.4
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Re: [Flexradio] Flex 5000 Display Centering

[Don Plunkett]

I thought that this was a bug introduced in 2.2.3 and that there was a
workaround for it ... it is very annoying ... I was sure that I was told
that when I upgraded (shortly after I bought the Flex) but I haven't  had a
chance to follow it up with Tim.

Don

VA6FH (love this radio ... nothing better!)

-Original Message-
From: flexradio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Guy Harris
Sent: January-02-12 7:35 AM
To: flexradio@flex-radio.biz
Subject: Re: [Flexradio] Flex 5000 Display Centering

Rick,

I believe it has something to do with the IF frequency being 9kHz(?).

~~Guy



On 1/2/2012 6:14 AM, Rick Lehman wrote:
> Happy New Year Flexers
>
> I am using the Flex5000.  I have noticed that when setting the panadapter
display width to settings of 1X and 0.5X  the listening bandwidth cannot be
centered.  On USB for example the listening frequency is approximately 80%
shifted to the right rather than being centered in the middle of the display
when using the 0.5X setting.The pan slider is inoperable when using
0.5x.  This is not a big deal, but when a station is operating split the
upper band can be partially or fully off the display.  Does anyone know of
any setting adjustments that can be used to correct this when using 0.5X and
1.0X display settings?
>
> Rick- WB4EJC
> Coconut Creek, Fl (near Ft Lauderdale) 
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Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues

[Steven Hess]

Running the Legacy Windows 7 64 here Running the  Legacy windows firewire
driver I can go weeks running 24/7 without having this issue crop up. This
is the Flex recommended driver if you are using Windows 7.

On Mon, Jan 2, 2012 at 6:45 PM, Don Plunkett  wrote:

> This problem has nothing to do with digital (my problem was SSB)  … you
> can start the PDSR and then stop the wireless process through control
> panel/systems and drivers. When you are finished using the radio just
> renable it. It took me a long time when I bought this radio and lots of
> help to figure it out on my Win7 PC. I must say that I don’t have any
> problems using my XP pc (which was broken when I bought the Flex) … it is a
> Vista/Win7 firewire driver problem. I understand that Flex is having
> someone rebuild the driver to take care of the problem. No need for other
> software that I can see and a friend of mine also just bought one and it
> works fine.
>
> ** **
>
> Don
>
> ** **
>
> *From:* Neal Campbell [mailto:abrohamn...@gmail.com]
> *Sent:* January-02-12 7:08 PM
> *To:* Don Plunkett
> *Cc:* Jim Jannuzzo; flameb...@gmail.com; flexradio@flex-radio.biz
> *Subject:* Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues
>
> ** **
>
> For situations like that, I would recommend using Autohotkeys, where you
> can define a AHK file that could turn off the wireless, then start PSDR and
> at the conclusion of PSDR re-enable the wireless. I am using it for a lot
> of setups, especially people who want to use DDUtil in various combinations
> (like with N1MM for contesting, DXBase for dx;ing, fldigi for digi work,
> etc.).
>
> 73
>
> On Mon, Jan 2, 2012 at 8:54 PM, Don Plunkett  wrote:
>
> I had the same problem and the solution at the end of the day was to
> disable
> the wireless driver ... worked like a charm (disable not remove!). At the
> end of your session renable the driver.  ... don ... VA6FH
>
>
> -Original Message-
> From: flexradio-boun...@flex-radio.biz
> [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Jim Jannuzzo
> Sent: January-02-12 6:22 PM
> To: flameb...@gmail.com; flexradio@flex-radio.biz
> Subject: Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues
>
>
> There are several processes that can stop the computer with a long deferred
> procedure call.  I suggest that you download dpclat.exe from thesyscon.de,
> and run it.  This will confirm that your problem is indeed with a DPC
> spike.
> Let it run in a little window.  Watch for the occurrence of a red spike
> (that is, over 1000 us.)  If it happens, you know that is the cause.  Big
> buffers can sometimes absorb a short spike, but I'm betting something is
> stalling your computer more than a little.If you can't immediately see that
> a certain program takes some action and causes the DPC spike, the next step
> is to download LatencyMon from Resplendence.com.  This one will tell you
> which process is stalling everything behind it.  Do whatever you have to do
> to stop that- update the driver, use the legacy OHCI1394 firewire driver,
> don't let the program run at the same time that PowerSDR is running, or
> disconnect the piece of hardware that is associated with the process.  Or,
> you can ask Neal to remote troubleshoot your PC for a nominal fee.  Jim
> KJ2P
>
>  > Date: Mon, 2 Jan 2012 15:15:29 -0800
> > From: flameb...@gmail.com
> > To: FlexRadio@flex-radio.biz
> > Subject: Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues
> >
> > On Windows 7 you should be running the "Legacy"  firewire driver as
> > well
> >
> > On Mon, Jan 2, 2012 at 2:07 PM, Brian Lloyd 
> wrote:
> >
> > > On Mon, Jan 2, 2012 at 1:06 PM, TM  wrote:
> > >
> > > > I am having a problem with my new Flex 3000 and PSDR 2.2.3.  After
> > > > the radio has been turned on for some time the audio becomes very
> > > > distorted.
> > > > Sometimes, this takes the form of "motor-boating" and at other
> > > > times it
> > > is
> > > > more like a low freq hum on top of signals.   This seems to happen
> after
> > > > perhaps 30 minutes of on time.  As soon as I stop PSDR and restart
> > > > it via the "Start" button the problem disappears.
> > > >
> > >
> > > What you are experiencing is a spike in deferred procedure call
> > > (DPC) latency causing the driver to lose synchronization with
> > > PowerSDR. A quick stop/start resets everything and reestablishes
> > > synchronization. This is a long-time issue that has been around from
> the
> beginning.
> > >
> > > The problem is usually a misbehaving driver in your system. The
> > > worst culprits are usually the WiFi (802.11), Bluetooth, and the video
> driver.
> > > The Ethernet driver also causes problems occasionally.  The fix is
> > > often to update the driver or disable the device.
> > >
> > > Sometimes there can be programs that cause problems. Someone alluded
> > > to Carbonite which is a known problem. Some versions of browsers and
> > > mail programs have caused problems as well. It is best to make sure
> > > 

[Flexradio] Antenna rotor/interface to PC?

[Bill Ackerman]

Another dumb question from a newcomer to the hobby:  What are the issues 
I need to consider in selecting an antenna rotor/interface to use with 
my Flex 3000? I'm graduating to a beam antenna. While not immediately 
interested in contesting and logging apps, I want to factor those 
capabilities into my purchase decision. I've got a good handle on the 
physical requirements in terms of weight and wind, but am pretty much 
clueless beyond that. Thanks for any suggestions for brands of rotor 
interfaces that play well with PowerSDR and other applications.


73,
Bill Ackerman, KF5MTW


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Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues

[Don Plunkett]

This problem has nothing to do with digital (my problem was SSB)  . you can
start the PDSR and then stop the wireless process through control
panel/systems and drivers. When you are finished using the radio just
renable it. It took me a long time when I bought this radio and lots of help
to figure it out on my Win7 PC. I must say that I don't have any problems
using my XP pc (which was broken when I bought the Flex) . it is a
Vista/Win7 firewire driver problem. I understand that Flex is having someone
rebuild the driver to take care of the problem. No need for other software
that I can see and a friend of mine also just bought one and it works fine.

 

Don

 

From: Neal Campbell [mailto:abrohamn...@gmail.com] 
Sent: January-02-12 7:08 PM
To: Don Plunkett
Cc: Jim Jannuzzo; flameb...@gmail.com; flexradio@flex-radio.biz
Subject: Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues

 

For situations like that, I would recommend using Autohotkeys, where you can
define a AHK file that could turn off the wireless, then start PSDR and at
the conclusion of PSDR re-enable the wireless. I am using it for a lot of
setups, especially people who want to use DDUtil in various combinations
(like with N1MM for contesting, DXBase for dx;ing, fldigi for digi work,
etc.).

73

On Mon, Jan 2, 2012 at 8:54 PM, Don Plunkett  wrote:

I had the same problem and the solution at the end of the day was to disable
the wireless driver ... worked like a charm (disable not remove!). At the
end of your session renable the driver.  ... don ... VA6FH


-Original Message-
From: flexradio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Jim Jannuzzo
Sent: January-02-12 6:22 PM
To: flameb...@gmail.com; flexradio@flex-radio.biz
Subject: Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues


There are several processes that can stop the computer with a long deferred
procedure call.  I suggest that you download dpclat.exe from thesyscon.de,
and run it.  This will confirm that your problem is indeed with a DPC spike.
Let it run in a little window.  Watch for the occurrence of a red spike
(that is, over 1000 us.)  If it happens, you know that is the cause.  Big
buffers can sometimes absorb a short spike, but I'm betting something is
stalling your computer more than a little.If you can't immediately see that
a certain program takes some action and causes the DPC spike, the next step
is to download LatencyMon from Resplendence.com.  This one will tell you
which process is stalling everything behind it.  Do whatever you have to do
to stop that- update the driver, use the legacy OHCI1394 firewire driver,
don't let the program run at the same time that PowerSDR is running, or
disconnect the piece of hardware that is associated with the process.  Or,
you can ask Neal to remote troubleshoot your PC for a nominal fee.  Jim KJ2P

 > Date: Mon, 2 Jan 2012 15:15:29 -0800
> From: flameb...@gmail.com
> To: FlexRadio@flex-radio.biz
> Subject: Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues
>
> On Windows 7 you should be running the "Legacy"  firewire driver as
> well
>
> On Mon, Jan 2, 2012 at 2:07 PM, Brian Lloyd 
wrote:
>
> > On Mon, Jan 2, 2012 at 1:06 PM, TM  wrote:
> >
> > > I am having a problem with my new Flex 3000 and PSDR 2.2.3.  After
> > > the radio has been turned on for some time the audio becomes very
> > > distorted.
> > > Sometimes, this takes the form of "motor-boating" and at other
> > > times it
> > is
> > > more like a low freq hum on top of signals.   This seems to happen
after
> > > perhaps 30 minutes of on time.  As soon as I stop PSDR and restart
> > > it via the "Start" button the problem disappears.
> > >
> >
> > What you are experiencing is a spike in deferred procedure call
> > (DPC) latency causing the driver to lose synchronization with
> > PowerSDR. A quick stop/start resets everything and reestablishes
> > synchronization. This is a long-time issue that has been around from the
beginning.
> >
> > The problem is usually a misbehaving driver in your system. The
> > worst culprits are usually the WiFi (802.11), Bluetooth, and the video
driver.
> > The Ethernet driver also causes problems occasionally.  The fix is
> > often to update the driver or disable the device.
> >
> > Sometimes there can be programs that cause problems. Someone alluded
> > to Carbonite which is a known problem. Some versions of browsers and
> > mail programs have caused problems as well. It is best to make sure
> > that NOTHING else is running.
> >
> > And then there are system configuration changes that can help. I
> > disable paging which I have found to help substantially. If your
> > system puts devices to sleep or it switches the processor to
> > low-speed, low-power mode that can cause problems as well.
> >
> > So there are lots of things that can affect this. If you want to see
> > when it occurs, bring up the Flex FireWire driver, click on the DPC
> > button, and click "Clear" to start the data collection. It will

Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Steven Hess]

Some of us actually passed the 5WPM Novice became and became Technicians
remaining that until the code requirements were dropped.  5WPM was pretty
much no code. I didn't think I'd pass the CW portion of the test but
guessed my way to passing on what little I did copy.

On Mon, Jan 2, 2012 at 6:03 PM, Tony Estep  wrote:

> On Mon, Jan 2, 2012 at 7:40 PM, Steven Hess  wrote:
> > For some of us this it is almost impossible.
> 
> Ah, ham radio changes and evolves. The no-code license was a big
> controversy in its day, but now just a few years later no-code hams
> are in the majority. About half of U.S. licensees are technicians, and
> the other half also contains many no-code ops, with the number
> steadily increasing.  As their ranks have grown, they have come to
> represent a significant market for manufacturers to serve. In Japan,
> where there are twice as many licensed hams as in the U.S., VHF
> licenses and gear dominate. I would guess that in this country HF gear
> leads the market by dollar volume, but maybe not by number of units
> sold, and many of today's buyers of HF gear will never use it for CW.
> It's plain in reading postings on ham discussion groups that no-code
> hams have their own preferences in operating style, equipment, and
> activities. But hey, there's enough spectrum for all.
>
> Tony KT0NY
>
>
>
> --
> http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352
>
> ___
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> Knowledge Base: http://kc.flexradio.com/  Homepage:
> http://www.flexradio.com/
>



-- 

Steven L Hess ARS KC6KGE DM05gd22
Skype user flamebait Cell 661 487 0357 (Facetime)
Google Voice 661 769 6201
openSUSE  Linux 11.4
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Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues

[Neal Campbell]

For situations like that, I would recommend using Autohotkeys, where you
can define a AHK file that could turn off the wireless, then start PSDR and
at the conclusion of PSDR re-enable the wireless. I am using it for a lot
of setups, especially people who want to use DDUtil in various combinations
(like with N1MM for contesting, DXBase for dx;ing, fldigi for digi work,
etc.).
73

On Mon, Jan 2, 2012 at 8:54 PM, Don Plunkett  wrote:

> I had the same problem and the solution at the end of the day was to
> disable
> the wireless driver ... worked like a charm (disable not remove!). At the
> end of your session renable the driver.  ... don ... VA6FH
>
> -Original Message-
> From: flexradio-boun...@flex-radio.biz
> [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Jim Jannuzzo
> Sent: January-02-12 6:22 PM
> To: flameb...@gmail.com; flexradio@flex-radio.biz
> Subject: Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues
>
>
> There are several processes that can stop the computer with a long deferred
> procedure call.  I suggest that you download dpclat.exe from thesyscon.de,
> and run it.  This will confirm that your problem is indeed with a DPC
> spike.
> Let it run in a little window.  Watch for the occurrence of a red spike
> (that is, over 1000 us.)  If it happens, you know that is the cause.  Big
> buffers can sometimes absorb a short spike, but I'm betting something is
> stalling your computer more than a little.If you can't immediately see that
> a certain program takes some action and causes the DPC spike, the next step
> is to download LatencyMon from Resplendence.com.  This one will tell you
> which process is stalling everything behind it.  Do whatever you have to do
> to stop that- update the driver, use the legacy OHCI1394 firewire driver,
> don't let the program run at the same time that PowerSDR is running, or
> disconnect the piece of hardware that is associated with the process.  Or,
> you can ask Neal to remote troubleshoot your PC for a nominal fee.  Jim
> KJ2P
>
>  > Date: Mon, 2 Jan 2012 15:15:29 -0800
> > From: flameb...@gmail.com
> > To: FlexRadio@flex-radio.biz
> > Subject: Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues
> >
> > On Windows 7 you should be running the "Legacy"  firewire driver as
> > well
> >
> > On Mon, Jan 2, 2012 at 2:07 PM, Brian Lloyd 
> wrote:
> >
> > > On Mon, Jan 2, 2012 at 1:06 PM, TM  wrote:
> > >
> > > > I am having a problem with my new Flex 3000 and PSDR 2.2.3.  After
> > > > the radio has been turned on for some time the audio becomes very
> > > > distorted.
> > > > Sometimes, this takes the form of "motor-boating" and at other
> > > > times it
> > > is
> > > > more like a low freq hum on top of signals.   This seems to happen
> after
> > > > perhaps 30 minutes of on time.  As soon as I stop PSDR and restart
> > > > it via the "Start" button the problem disappears.
> > > >
> > >
> > > What you are experiencing is a spike in deferred procedure call
> > > (DPC) latency causing the driver to lose synchronization with
> > > PowerSDR. A quick stop/start resets everything and reestablishes
> > > synchronization. This is a long-time issue that has been around from
> the
> beginning.
> > >
> > > The problem is usually a misbehaving driver in your system. The
> > > worst culprits are usually the WiFi (802.11), Bluetooth, and the video
> driver.
> > > The Ethernet driver also causes problems occasionally.  The fix is
> > > often to update the driver or disable the device.
> > >
> > > Sometimes there can be programs that cause problems. Someone alluded
> > > to Carbonite which is a known problem. Some versions of browsers and
> > > mail programs have caused problems as well. It is best to make sure
> > > that NOTHING else is running.
> > >
> > > And then there are system configuration changes that can help. I
> > > disable paging which I have found to help substantially. If your
> > > system puts devices to sleep or it switches the processor to
> > > low-speed, low-power mode that can cause problems as well.
> > >
> > > So there are lots of things that can affect this. If you want to see
> > > when it occurs, bring up the Flex FireWire driver, click on the DPC
> > > button, and click "Clear" to start the data collection. It will show
> > > you the DPC latency over time. It will also tell you which mode you
> > > should use for your driver.
> > >
> > > --
> > > Brian Lloyd, WB6RQN/J79BPL
> > > 3191 Western Dr.
> > > Cameron Park, CA 95682
> > > br...@lloyd.com
> > > +1.767.617.1365 (Dominica)
> > > +1.916.877.5067 (USA)
> > > ___
> > > FlexRadio Systems Mailing List
> > > FlexRadio@flex-radio.biz
> > > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> > > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> > > Knowledge Base: http://kc.flexradio.com/  Homepage:
> > > http://www.flexradio.com/
> > >
> >
> >
> >
> > --
> > 
> > Steven L Hess ARS KC6KGE DM05gd22
> >

Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Tony Estep]

On Mon, Jan 2, 2012 at 7:40 PM, Steven Hess  wrote:
> For some of us this it is almost impossible.

Ah, ham radio changes and evolves. The no-code license was a big
controversy in its day, but now just a few years later no-code hams
are in the majority. About half of U.S. licensees are technicians, and
the other half also contains many no-code ops, with the number
steadily increasing.  As their ranks have grown, they have come to
represent a significant market for manufacturers to serve. In Japan,
where there are twice as many licensed hams as in the U.S., VHF
licenses and gear dominate. I would guess that in this country HF gear
leads the market by dollar volume, but maybe not by number of units
sold, and many of today's buyers of HF gear will never use it for CW.
It's plain in reading postings on ham discussion groups that no-code
hams have their own preferences in operating style, equipment, and
activities. But hey, there's enough spectrum for all.

Tony KT0NY



-- 
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[J.Gordon Beattie, Jr., W2TTT]

Bob et al,
To be appreciated, CW is not the two sounds of code elements or even the
twenty-six (plus numbers, punctuation and prosigns) of the alphabet, but an
endless array of words and phrases which are distinctive sounds in and of
themselves.  I would suggest that if learned at a decent speed (18 WPM or
more) then each will have a distinct sound which can be more effectively
copied than individual characters.  I am in the process of converting myself
from a letter copier to a word or phrase copier and it seems to be
worthwhile, however challenging to accomplish.  I wished I had learned this
method forty years ago!  I would be conversational above 35 WPM instead of
struggling at 18!
:-) 

Thanks & 73,
Gordon Beattie, W2TTT
201.314.6964

-Original Message-
From: flexradio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Bob Logan
Sent: Tuesday, January 03, 2012 1:38 AM
To: Steven Hess
Cc: FlexRadio reflector
Subject: Re: [Flexradio] Flex 1500 using External Transmitter for AM

I disagree.  There are 26 sounds in the alphabet, only 2 in code.

Sent from my iPhone

On Jan 2, 2012, at 7:33 PM, Steven Hess  wrote:

> CW is overly complicated. Plain text is always good.
> 
> On Mon, Jan 2, 2012 at 5:10 PM, Bob Logan  wrote:
> 
>> -.   .   .-   -  ..   -..   .   .-   --..--   -   ..   --
>> 
>> Sent from my iPhone
>> 
>> On Jan 2, 2012, at 6:21 PM, Tim McDonough N9PUZ 
>> wrote:
>> 
>>> Maybe we could invent a protocol where letters were represented by short
>> and long bursts of a carrier sent by opening and closing a simple switch
of
>> some sort. Oh, wait...
>>> 
>>> :-)
>>> 
>>> Tim N9PUZ
>>> 
>>> On 1/2/2012 2:43 PM, Burt wrote:
 You can use a computer generated voice and you won't even have to speak
>> (sounds not all that different from SSB). Why don't you advise broadcast
>> stations they can use SSB? AM sounds natural even if it is less efficent.
 You can take your vitamins in a pill (AKA SSB) or eat them (AM),
 Burt
 
> From: Brian Lloyd
> To me also. I cannot imagine why someone would run AM at
> all because one
> can do precisely the same thing using SSB at 1/8 the power
> and 1/2 the
> bandwidth.
>>> 
>>> ___
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>>> Knowledge Base: http://kc.flexradio.com/  Homepage:
>> http://www.flexradio.com/
>> 
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>> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
>> Knowledge Base: http://kc.flexradio.com/  Homepage:
>> http://www.flexradio.com/
>> 
> 
> 
> 
> -- 
> 
> Steven L Hess ARS KC6KGE DM05gd22
> Skype user flamebait Cell 661 487 0357 (Facetime)
> Google Voice 661 769 6201
> openSUSE  Linux 11.4
> ___
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Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues

[Don Plunkett]

I had the same problem and the solution at the end of the day was to disable
the wireless driver ... worked like a charm (disable not remove!). At the
end of your session renable the driver.  ... don ... VA6FH

-Original Message-
From: flexradio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Jim Jannuzzo
Sent: January-02-12 6:22 PM
To: flameb...@gmail.com; flexradio@flex-radio.biz
Subject: Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues


There are several processes that can stop the computer with a long deferred
procedure call.  I suggest that you download dpclat.exe from thesyscon.de,
and run it.  This will confirm that your problem is indeed with a DPC spike.
Let it run in a little window.  Watch for the occurrence of a red spike
(that is, over 1000 us.)  If it happens, you know that is the cause.  Big
buffers can sometimes absorb a short spike, but I'm betting something is
stalling your computer more than a little.If you can't immediately see that
a certain program takes some action and causes the DPC spike, the next step
is to download LatencyMon from Resplendence.com.  This one will tell you
which process is stalling everything behind it.  Do whatever you have to do
to stop that- update the driver, use the legacy OHCI1394 firewire driver,
don't let the program run at the same time that PowerSDR is running, or
disconnect the piece of hardware that is associated with the process.  Or,
you can ask Neal to remote troubleshoot your PC for a nominal fee.  Jim KJ2P

  > Date: Mon, 2 Jan 2012 15:15:29 -0800
> From: flameb...@gmail.com
> To: FlexRadio@flex-radio.biz
> Subject: Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues
> 
> On Windows 7 you should be running the "Legacy"  firewire driver as 
> well
> 
> On Mon, Jan 2, 2012 at 2:07 PM, Brian Lloyd 
wrote:
> 
> > On Mon, Jan 2, 2012 at 1:06 PM, TM  wrote:
> >
> > > I am having a problem with my new Flex 3000 and PSDR 2.2.3.  After 
> > > the radio has been turned on for some time the audio becomes very 
> > > distorted.
> > > Sometimes, this takes the form of "motor-boating" and at other 
> > > times it
> > is
> > > more like a low freq hum on top of signals.   This seems to happen
after
> > > perhaps 30 minutes of on time.  As soon as I stop PSDR and restart 
> > > it via the "Start" button the problem disappears.
> > >
> >
> > What you are experiencing is a spike in deferred procedure call 
> > (DPC) latency causing the driver to lose synchronization with 
> > PowerSDR. A quick stop/start resets everything and reestablishes 
> > synchronization. This is a long-time issue that has been around from the
beginning.
> >
> > The problem is usually a misbehaving driver in your system. The 
> > worst culprits are usually the WiFi (802.11), Bluetooth, and the video
driver.
> > The Ethernet driver also causes problems occasionally.  The fix is 
> > often to update the driver or disable the device.
> >
> > Sometimes there can be programs that cause problems. Someone alluded 
> > to Carbonite which is a known problem. Some versions of browsers and 
> > mail programs have caused problems as well. It is best to make sure 
> > that NOTHING else is running.
> >
> > And then there are system configuration changes that can help. I 
> > disable paging which I have found to help substantially. If your 
> > system puts devices to sleep or it switches the processor to 
> > low-speed, low-power mode that can cause problems as well.
> >
> > So there are lots of things that can affect this. If you want to see 
> > when it occurs, bring up the Flex FireWire driver, click on the DPC 
> > button, and click "Clear" to start the data collection. It will show 
> > you the DPC latency over time. It will also tell you which mode you 
> > should use for your driver.
> >
> > --
> > Brian Lloyd, WB6RQN/J79BPL
> > 3191 Western Dr.
> > Cameron Park, CA 95682
> > br...@lloyd.com
> > +1.767.617.1365 (Dominica)
> > +1.916.877.5067 (USA)
> > ___
> > FlexRadio Systems Mailing List
> > FlexRadio@flex-radio.biz
> > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> > Knowledge Base: http://kc.flexradio.com/  Homepage:
> > http://www.flexradio.com/
> >
> 
> 
> 
> --
> 
> Steven L Hess ARS KC6KGE DM05gd22
> Skype user flamebait Cell 661 487 0357 (Facetime) Google Voice 661 769 
> 6201 openSUSE  Linux 11.4 
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Steven Hess]

Yes but you have to learn another language other than your native one. For
some of us this it is almost impossible. CW is like listening to Chinese to
me. Incomprehensible noise.

On Mon, Jan 2, 2012 at 5:37 PM, Bob Logan  wrote:

> I disagree.  There are 26 sounds in the alphabet, only 2 in code.
>
> Sent from my iPhone
>
> On Jan 2, 2012, at 7:33 PM, Steven Hess  wrote:
>
> > CW is overly complicated. Plain text is always good.
> >
> > On Mon, Jan 2, 2012 at 5:10 PM, Bob Logan  wrote:
> >
> >> -.   .   .-   -  ..   -..   .   .-   --..--   -   ..   --
> >>
> >> Sent from my iPhone
> >>
> >> On Jan 2, 2012, at 6:21 PM, Tim McDonough N9PUZ 
> >> wrote:
> >>
> >>> Maybe we could invent a protocol where letters were represented by
> short
> >> and long bursts of a carrier sent by opening and closing a simple
> switch of
> >> some sort. Oh, wait...
> >>>
> >>> :-)
> >>>
> >>> Tim N9PUZ
> >>>
> >>> On 1/2/2012 2:43 PM, Burt wrote:
>  You can use a computer generated voice and you won't even have to
> speak
> >> (sounds not all that different from SSB). Why don't you advise broadcast
> >> stations they can use SSB? AM sounds natural even if it is less
> efficent.
>  You can take your vitamins in a pill (AKA SSB) or eat them (AM),
>  Burt
> 
> > From: Brian Lloyd
> > To me also. I cannot imagine why someone would run AM at
> > all because one
> > can do precisely the same thing using SSB at 1/8 the power
> > and 1/2 the
> > bandwidth.
> >>>
> >>> ___
> >>> FlexRadio Systems Mailing List
> >>> FlexRadio@flex-radio.biz
> >>> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> >>> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> >>> Knowledge Base: http://kc.flexradio.com/  Homepage:
> >> http://www.flexradio.com/
> >>
> >> ___
> >> FlexRadio Systems Mailing List
> >> FlexRadio@flex-radio.biz
> >> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> >> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> >> Knowledge Base: http://kc.flexradio.com/  Homepage:
> >> http://www.flexradio.com/
> >>
> >
> >
> >
> > --
> > 
> > Steven L Hess ARS KC6KGE DM05gd22
> > Skype user flamebait Cell 661 487 0357 (Facetime)
> > Google Voice 661 769 6201
> > openSUSE  Linux 11.4
> > ___
> > FlexRadio Systems Mailing List
> > FlexRadio@flex-radio.biz
> > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> > Knowledge Base: http://kc.flexradio.com/  Homepage:
> http://www.flexradio.com/
>



-- 

Steven L Hess ARS KC6KGE DM05gd22
Skype user flamebait Cell 661 487 0357 (Facetime)
Google Voice 661 769 6201
openSUSE  Linux 11.4
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Bob Logan]

I disagree.  There are 26 sounds in the alphabet, only 2 in code.

Sent from my iPhone

On Jan 2, 2012, at 7:33 PM, Steven Hess  wrote:

> CW is overly complicated. Plain text is always good.
> 
> On Mon, Jan 2, 2012 at 5:10 PM, Bob Logan  wrote:
> 
>> -.   .   .-   -  ..   -..   .   .-   --..--   -   ..   --
>> 
>> Sent from my iPhone
>> 
>> On Jan 2, 2012, at 6:21 PM, Tim McDonough N9PUZ 
>> wrote:
>> 
>>> Maybe we could invent a protocol where letters were represented by short
>> and long bursts of a carrier sent by opening and closing a simple switch of
>> some sort. Oh, wait...
>>> 
>>> :-)
>>> 
>>> Tim N9PUZ
>>> 
>>> On 1/2/2012 2:43 PM, Burt wrote:
 You can use a computer generated voice and you won't even have to speak
>> (sounds not all that different from SSB). Why don't you advise broadcast
>> stations they can use SSB? AM sounds natural even if it is less efficent.
 You can take your vitamins in a pill (AKA SSB) or eat them (AM),
 Burt
 
> From: Brian Lloyd
> To me also. I cannot imagine why someone would run AM at
> all because one
> can do precisely the same thing using SSB at 1/8 the power
> and 1/2 the
> bandwidth.
>>> 
>>> ___
>>> FlexRadio Systems Mailing List
>>> FlexRadio@flex-radio.biz
>>> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
>>> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
>>> Knowledge Base: http://kc.flexradio.com/  Homepage:
>> http://www.flexradio.com/
>> 
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>> Knowledge Base: http://kc.flexradio.com/  Homepage:
>> http://www.flexradio.com/
>> 
> 
> 
> 
> -- 
> 
> Steven L Hess ARS KC6KGE DM05gd22
> Skype user flamebait Cell 661 487 0357 (Facetime)
> Google Voice 661 769 6201
> openSUSE  Linux 11.4
> ___
> FlexRadio Systems Mailing List
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Steven Hess]

CW is overly complicated. Plain text is always good.

On Mon, Jan 2, 2012 at 5:10 PM, Bob Logan  wrote:

> -.   .   .-   -  ..   -..   .   .-   --..--   -   ..   --
>
> Sent from my iPhone
>
> On Jan 2, 2012, at 6:21 PM, Tim McDonough N9PUZ 
> wrote:
>
> > Maybe we could invent a protocol where letters were represented by short
> and long bursts of a carrier sent by opening and closing a simple switch of
> some sort. Oh, wait...
> >
> > :-)
> >
> > Tim N9PUZ
> >
> > On 1/2/2012 2:43 PM, Burt wrote:
> >> You can use a computer generated voice and you won't even have to speak
> (sounds not all that different from SSB). Why don't you advise broadcast
> stations they can use SSB? AM sounds natural even if it is less efficent.
> >> You can take your vitamins in a pill (AKA SSB) or eat them (AM),
> >> Burt
> >>
> >>> From: Brian Lloyd
> >>> To me also. I cannot imagine why someone would run AM at
> >>> all because one
> >>> can do precisely the same thing using SSB at 1/8 the power
> >>> and 1/2 the
> >>> bandwidth.
> >
> > ___
> > FlexRadio Systems Mailing List
> > FlexRadio@flex-radio.biz
> > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> > Knowledge Base: http://kc.flexradio.com/  Homepage:
> http://www.flexradio.com/
>
> ___
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> Knowledge Base: http://kc.flexradio.com/  Homepage:
> http://www.flexradio.com/
>



-- 

Steven L Hess ARS KC6KGE DM05gd22
Skype user flamebait Cell 661 487 0357 (Facetime)
Google Voice 661 769 6201
openSUSE  Linux 11.4
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Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues

[Jim Jannuzzo]

There are several processes that can stop the computer with a long deferred 
procedure call.  I suggest that you download dpclat.exe from thesyscon.de, and 
run it.  This will confirm that your problem is indeed with a DPC spike. Let it 
run in a little window.  Watch for the occurrence of a red spike (that is, over 
1000 us.)  If it happens, you know that is the cause.  Big buffers can 
sometimes absorb a short spike, but I'm betting something is stalling your 
computer more than a little.If you can't immediately see that a certain program 
takes some action and causes the DPC spike, the next step is to download 
LatencyMon from Resplendence.com.  This one will tell you which process is 
stalling everything behind it.  Do whatever you have to do to stop that- update 
the driver, use the legacy OHCI1394 firewire driver, don't let the program run 
at the same time that PowerSDR is running, or disconnect the piece of hardware 
that is associated with the process.  Or, you can ask Neal to remote 
troubleshoot your PC for a nominal fee.  Jim KJ2P
  > Date: Mon, 2 Jan 2012 15:15:29 -0800
> From: flameb...@gmail.com
> To: FlexRadio@flex-radio.biz
> Subject: Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues
> 
> On Windows 7 you should be running the "Legacy"  firewire driver as well
> 
> On Mon, Jan 2, 2012 at 2:07 PM, Brian Lloyd  wrote:
> 
> > On Mon, Jan 2, 2012 at 1:06 PM, TM  wrote:
> >
> > > I am having a problem with my new Flex 3000 and PSDR 2.2.3.  After the
> > > radio
> > > has been turned on for some time the audio becomes very distorted.
> > > Sometimes, this takes the form of "motor-boating" and at other times it
> > is
> > > more like a low freq hum on top of signals.   This seems to happen after
> > > perhaps 30 minutes of on time.  As soon as I stop PSDR and restart it via
> > > the "Start" button the problem disappears.
> > >
> >
> > What you are experiencing is a spike in deferred procedure call (DPC)
> > latency causing the driver to lose synchronization with PowerSDR. A quick
> > stop/start resets everything and reestablishes synchronization. This is a
> > long-time issue that has been around from the beginning.
> >
> > The problem is usually a misbehaving driver in your system. The worst
> > culprits are usually the WiFi (802.11), Bluetooth, and the video driver.
> > The Ethernet driver also causes problems occasionally.  The fix is often to
> > update the driver or disable the device.
> >
> > Sometimes there can be programs that cause problems. Someone alluded to
> > Carbonite which is a known problem. Some versions of browsers and mail
> > programs have caused problems as well. It is best to make sure that NOTHING
> > else is running.
> >
> > And then there are system configuration changes that can help. I disable
> > paging which I have found to help substantially. If your system puts
> > devices to sleep or it switches the processor to low-speed, low-power mode
> > that can cause problems as well.
> >
> > So there are lots of things that can affect this. If you want to see when
> > it occurs, bring up the Flex FireWire driver, click on the DPC button, and
> > click "Clear" to start the data collection. It will show you the DPC
> > latency over time. It will also tell you which mode you should use for your
> > driver.
> >
> > --
> > Brian Lloyd, WB6RQN/J79BPL
> > 3191 Western Dr.
> > Cameron Park, CA 95682
> > br...@lloyd.com
> > +1.767.617.1365 (Dominica)
> > +1.916.877.5067 (USA)
> > ___
> > FlexRadio Systems Mailing List
> > FlexRadio@flex-radio.biz
> > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
> > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
> > Knowledge Base: http://kc.flexradio.com/  Homepage:
> > http://www.flexradio.com/
> >
> 
> 
> 
> -- 
> 
> Steven L Hess ARS KC6KGE DM05gd22
> Skype user flamebait Cell 661 487 0357 (Facetime)
> Google Voice 661 769 6201
> openSUSE  Linux 11.4
> ___
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Bob Logan]

-.   .   .-   -  ..   -..   .   .-   --..--   -   ..   --

Sent from my iPhone

On Jan 2, 2012, at 6:21 PM, Tim McDonough N9PUZ  wrote:

> Maybe we could invent a protocol where letters were represented by short and 
> long bursts of a carrier sent by opening and closing a simple switch of some 
> sort. Oh, wait...
> 
> :-)
> 
> Tim N9PUZ
> 
> On 1/2/2012 2:43 PM, Burt wrote:
>> You can use a computer generated voice and you won't even have to speak 
>> (sounds not all that different from SSB). Why don't you advise broadcast 
>> stations they can use SSB? AM sounds natural even if it is less efficent.
>> You can take your vitamins in a pill (AKA SSB) or eat them (AM),
>> Burt
>> 
>>> From: Brian Lloyd
>>> To me also. I cannot imagine why someone would run AM at
>>> all because one
>>> can do precisely the same thing using SSB at 1/8 the power
>>> and 1/2 the
>>> bandwidth.
> 
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Brett Gazdzinski]

I use AM because I have built my own station, receivers and transmitters, 
antenna's, and its a lot harder to do that with ssb gear.
Also, AM sounds a lot better, as the wasted carrier quiets the frequency, 
its like standing in a room and talking with someone, no noise in-between 
speech.


As far as it being a bandwidth hog, ssb is a bandwidth hog over CW.
Most AM is done in a big roundtable, one or two spots on the band, with many 
stations in the round table sometimes.


I myself like to operate when the bands are empty, top of 40 meters in the 
morning, 80 meters late afternoon, not during prime time.


I listen on 80 meters ssb  prime time, and hear nothing but rants against 
the government and talk about radios that cost more then cars do, and TV 
shows.


When I work AM, its about homebrew stuff, fixing vintage stuff, tubes, 
antenna's, how to make VFO's stable, etc.

It just seems more like ham radio to me.

Brett
N2DTS





- Original Message - 
From: "Lee Mushel" 
To: "Brian Lloyd" ; "Bill Marvin" 


Cc: 
Sent: Monday, January 02, 2012 1:44 PM
Subject: Re: [Flexradio] Flex 1500 using External Transmitter for AM



Gentlemen,

I must admit that I don't understand any of this.   With the bands as 
crowded as they are these days I find myself receiving with the filtering 
set at 2.4 kHz.   Readability is very good.   I will have to dig out my 
1950's copies of QST and see just why we decided to use single sideband in 
the first place.  Now we watch movies on a 4 inch screen with often 
non-descript earbuds and wonder if I have wasted my money on these speaker 
systems with close to 200 drivers and with a screen that allows me to see 
Aaron Rogers at much larger than full size.   I think Yul said it best 
when he commented "T'is a puzzlement!"


73

Lee   K9WRU
- Original Message - 
From: "Brian Lloyd" 

To: "Bill Marvin" 
Cc: 
Sent: Monday, January 02, 2012 11:01 AM
Subject: Re: [Flexradio] Flex 1500 using External Transmitter for AM



On Mon, Jan 2, 2012 at 8:17 AM, Bill Marvin  wrote:


Brian,

You are obviously not familiar with the FT-102. A properly modified 
FT-102

can sound excellent on AM. There is nothing wrong with the old tube rigs
you
mention. But, they all need modifications to make them sound good on
AM. The


fact that a transmitter uses high level plate modulation doesn't 
guarantee

that it sounds good.



That is certainly true but I would assume that anyone thinking of doing
"HiFi" AM is going to properly treat the low-level audio and modulation
stages anyway. That means getting rid of cathode bias with electrolytic
bypass caps and replacing it with fixed-bias, increasing interstage
coupling caps to improve low-frequency response, changing filters, etc. 
The
key here is that high-level modulation tends to be a better starting 
point

for a quality AM signal.



In fact, most of the 100W class AM transmitters from
the 50's and 60's sound terrible until they are modified. Most of them 
had
restricted audio bandwidth and horrible things like clippers and 
high/low

pass audio filters.



Well, that kinda goes without saying. They were definitely not HiFi but
that is easy to rectify.

But maybe I just take that stuff for granted as I spent a significant
portion of my life designing, building, and modifying tube HiFi gear.

--
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
br...@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Tim McDonough N9PUZ]

Maybe we could invent a protocol where letters were represented by short 
and long bursts of a carrier sent by opening and closing a simple switch 
of some sort. Oh, wait...


:-)

Tim N9PUZ

On 1/2/2012 2:43 PM, Burt wrote:

You can use a computer generated voice and you won't even have to speak (sounds 
not all that different from SSB). Why don't you advise broadcast stations they 
can use SSB? AM sounds natural even if it is less efficent.
You can take your vitamins in a pill (AKA SSB) or eat them (AM),
Burt


From: Brian Lloyd
To me also. I cannot imagine why someone would run AM at
all because one
can do precisely the same thing using SSB at 1/8 the power
and 1/2 the
bandwidth.


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Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues

[Tony Estep]

On Mon, Jan 2, 2012 at 5:25 PM, N7BCP  wrote:
> ...is there no hope that PowerSDR can automatically recover from a DPC 
> latency spike?
===
Larry, that's a very interesting question. Audio recording software
(Cubase, Ableton, Motu, Sonar, etc.) operates with a real-time stream
of audio data, but does not exhibit this behavior. A long DPC can
cause a pop that ruins a track, but there is no subsequent distortion
of the audio stream. The same is true of sound-card ham software,
including I-Q decoders such as Rocky. There may be pops, but things
don't have to be re-started. Perhaps there is something in the Flex
architecture that requires some sort of clocking that is common to the
decoding software and the radio hardware. If so, maybe this could be
remedied in the next generation of hardware. In general, software
doesn't know (unless it's watching a real-time clock) that it has been
interrupted, and it does not have any way to postpone external
interrupt requests for a convenient moment.

Tony KT0NY



-- 
http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352

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Re: [Flexradio] {SPAM?} Re: Flex 1500 using External Transmitter for AM

[Ross Stenberg]

Ever wonder what everyone is talking or texting about when on their 
cellphones while driving, shopping, eating, walking, checking out or in, 
and generally every other daily activity even when with others? What is 
so important?


On 1/2/2012 4:57 PM, Steven Hess wrote:

I have to add my LOL moment when I read this.
I rarely "talk" to anyone using amateur radio right now but my Flex-3000 is
going 24/7 doing something I enjoy. I use my "cellular phone" (which is a
radio) for text messages (ala packet radio 20 years ago.) the same applies
to my iPad (also a radio.) I usually talk to my Wife and rarely to any
other humans.





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Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues

[N7BCP]

My PC has an average DPC latency in the low low 100s and %CPU around 10% but 
has the rare DPC latency spike that causes PowerSDR to (lose synchronization?) 
and cause the audio to become distorted until a stop/start.  Since we are bound 
to a general purpose OS that is not real time process friendly, is there no 
hope that PowerSDR can automatically recover from a DPC latency spike?

If one of the PowerSDR engineers could explain the mechanism where 
synchronization is lost I would love to understand what happens there.

Now I understand that I could try to solve this by investing in a 
hardware/software combination that happens to have the most optimized drivers 
to lower the chances of a long running DPC but I think a worthy goal would be 
to have PowerSDR cope with existing inside a non real time OS.  I would be 
perfectly fine if I had an occasional drop-out due to a long DPC but I'm not 
keen on having a single long DPC kill my receiver.

Still, the benefits of this SDR far outweigh the glitches.  But only if...

-Larry

On 02.01.2012, at 23:07, Brian Lloyd  wrote:

> On Mon, Jan 2, 2012 at 1:06 PM, TM  wrote:
> 
>> I am having a problem with my new Flex 3000 and PSDR 2.2.3.  After the
>> radio
>> has been turned on for some time the audio becomes very distorted.
>> Sometimes, this takes the form of "motor-boating" and at other times it is
>> more like a low freq hum on top of signals.   This seems to happen after
>> perhaps 30 minutes of on time.  As soon as I stop PSDR and restart it via
>> the "Start" button the problem disappears.
>> 
> 
> What you are experiencing is a spike in deferred procedure call (DPC)
> latency causing the driver to lose synchronization with PowerSDR. A quick
> stop/start resets everything and reestablishes synchronization. This is a
> long-time issue that has been around from the beginning.
> 
> The problem is usually a misbehaving driver in your system. The worst
> culprits are usually the WiFi (802.11), Bluetooth, and the video driver.
> The Ethernet driver also causes problems occasionally.  The fix is often to
> update the driver or disable the device.
> 
> Sometimes there can be programs that cause problems. Someone alluded to
> Carbonite which is a known problem. Some versions of browsers and mail
> programs have caused problems as well. It is best to make sure that NOTHING
> else is running.
> 
> And then there are system configuration changes that can help. I disable
> paging which I have found to help substantially. If your system puts
> devices to sleep or it switches the processor to low-speed, low-power mode
> that can cause problems as well.
> 
> So there are lots of things that can affect this. If you want to see when
> it occurs, bring up the Flex FireWire driver, click on the DPC button, and
> click "Clear" to start the data collection. It will show you the DPC
> latency over time. It will also tell you which mode you should use for your
> driver.
> 
> -- 
> Brian Lloyd, WB6RQN/J79BPL
> 3191 Western Dr.
> Cameron Park, CA 95682
> br...@lloyd.com
> +1.767.617.1365 (Dominica)
> +1.916.877.5067 (USA)
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Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues

[Steven Hess]

On Windows 7 you should be running the "Legacy"  firewire driver as well

On Mon, Jan 2, 2012 at 2:07 PM, Brian Lloyd  wrote:

> On Mon, Jan 2, 2012 at 1:06 PM, TM  wrote:
>
> > I am having a problem with my new Flex 3000 and PSDR 2.2.3.  After the
> > radio
> > has been turned on for some time the audio becomes very distorted.
> > Sometimes, this takes the form of "motor-boating" and at other times it
> is
> > more like a low freq hum on top of signals.   This seems to happen after
> > perhaps 30 minutes of on time.  As soon as I stop PSDR and restart it via
> > the "Start" button the problem disappears.
> >
>
> What you are experiencing is a spike in deferred procedure call (DPC)
> latency causing the driver to lose synchronization with PowerSDR. A quick
> stop/start resets everything and reestablishes synchronization. This is a
> long-time issue that has been around from the beginning.
>
> The problem is usually a misbehaving driver in your system. The worst
> culprits are usually the WiFi (802.11), Bluetooth, and the video driver.
> The Ethernet driver also causes problems occasionally.  The fix is often to
> update the driver or disable the device.
>
> Sometimes there can be programs that cause problems. Someone alluded to
> Carbonite which is a known problem. Some versions of browsers and mail
> programs have caused problems as well. It is best to make sure that NOTHING
> else is running.
>
> And then there are system configuration changes that can help. I disable
> paging which I have found to help substantially. If your system puts
> devices to sleep or it switches the processor to low-speed, low-power mode
> that can cause problems as well.
>
> So there are lots of things that can affect this. If you want to see when
> it occurs, bring up the Flex FireWire driver, click on the DPC button, and
> click "Clear" to start the data collection. It will show you the DPC
> latency over time. It will also tell you which mode you should use for your
> driver.
>
> --
> Brian Lloyd, WB6RQN/J79BPL
> 3191 Western Dr.
> Cameron Park, CA 95682
> br...@lloyd.com
> +1.767.617.1365 (Dominica)
> +1.916.877.5067 (USA)
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>



-- 

Steven L Hess ARS KC6KGE DM05gd22
Skype user flamebait Cell 661 487 0357 (Facetime)
Google Voice 661 769 6201
openSUSE  Linux 11.4
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Re: [Flexradio] {SPAM?} Re: Flex 1500 using External Transmitter for AM

[Steven Hess]

I have to add my LOL moment when I read this.
I rarely "talk" to anyone using amateur radio right now but my Flex-3000 is
going 24/7 doing something I enjoy. I use my "cellular phone" (which is a
radio) for text messages (ala packet radio 20 years ago.) the same applies
to my iPad (also a radio.) I usually talk to my Wife and rarely to any
other humans.

On Mon, Jan 2, 2012 at 12:44 PM, Burt  wrote:

> And cheaper, I can talk to my daughter in Asia for free online
>
> --- On Mon, 1/2/12, Mike Manship  wrote:
>
>
> > Why would anyone use ham radio when
> > it would be so much easier just to
> > use a telephone?
> >
> > 73 de Mike W9OJ
>
>
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-- 

Steven L Hess ARS KC6KGE DM05gd22
Skype user flamebait Cell 661 487 0357 (Facetime)
Google Voice 661 769 6201
openSUSE  Linux 11.4
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Burt]

If it's so easy to reinject the carrier at the exact phase AND FREQUENCY why 
does sideband sound like sideband and not like AM?


--- On Mon, 1/2/12, Brian Lloyd  wrote:
 If you demodulate an SSB signal by reinjecting the carrier at precisely the 
correct frequency (very easy to do today), the result is indistinguishable from 
the same baseband signal transmitted by classical AM and then recovered using 
an envelope detector. (Well, not exactly. The envelope detector tends to 
introduce more nonlinearity than a product detector.)





But I am sorry I entered into this discussion. Please carry on without me.

-- 
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
br...@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
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Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues

[Brian Lloyd]

On Mon, Jan 2, 2012 at 1:06 PM, TM  wrote:

> I am having a problem with my new Flex 3000 and PSDR 2.2.3.  After the
> radio
> has been turned on for some time the audio becomes very distorted.
> Sometimes, this takes the form of "motor-boating" and at other times it is
> more like a low freq hum on top of signals.   This seems to happen after
> perhaps 30 minutes of on time.  As soon as I stop PSDR and restart it via
> the "Start" button the problem disappears.
>

What you are experiencing is a spike in deferred procedure call (DPC)
latency causing the driver to lose synchronization with PowerSDR. A quick
stop/start resets everything and reestablishes synchronization. This is a
long-time issue that has been around from the beginning.

The problem is usually a misbehaving driver in your system. The worst
culprits are usually the WiFi (802.11), Bluetooth, and the video driver.
The Ethernet driver also causes problems occasionally.  The fix is often to
update the driver or disable the device.

Sometimes there can be programs that cause problems. Someone alluded to
Carbonite which is a known problem. Some versions of browsers and mail
programs have caused problems as well. It is best to make sure that NOTHING
else is running.

And then there are system configuration changes that can help. I disable
paging which I have found to help substantially. If your system puts
devices to sleep or it switches the processor to low-speed, low-power mode
that can cause problems as well.

So there are lots of things that can affect this. If you want to see when
it occurs, bring up the Flex FireWire driver, click on the DPC button, and
click "Clear" to start the data collection. It will show you the DPC
latency over time. It will also tell you which mode you should use for your
driver.

-- 
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
br...@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Bob Logan]

Maybe some of use AM sometimes because it's fun.  Maybe we get on with SSB most 
of the time because there's more stations and it's fun.  Sometimes lots of guys 
dig the challenges of CW because it's fun.  Sometimes technical discussions go 
on and on and on and it's not fun, just boring after awhile.

If you don't know the individual reasons why somebody does something different 
from you, quit quoting engineering and start thinking about the larger scheme 
of things.  You might even find it fun occasionally.  Bob, NZ5A


Sent from my iPhone

On Jan 2, 2012, at 1:41 PM, "Rick Tharrington"  wrote:

> AM for ever my brothers! Just another way to have fun with radio! I love you
> Intellectuals ...
> God Bless Rick :)
> 
> 
> -Original Message-
> From: flexradio-boun...@flex-radio.biz
> [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Brian Lloyd
> Sent: Monday, January 02, 2012 2:13 PM
> To: Lee Mushel
> Cc: flexradio@flex-radio.biz
> Subject: Re: [Flexradio] Flex 1500 using External Transmitter for AM
> 
> On Mon, Jan 2, 2012 at 10:44 AM, Lee Mushel  wrote:
> 
>> Gentlemen,
>> 
>> I must admit that I don't understand any of this.   With the bands as
>> crowded as they are these days I find myself receiving with the filtering
>> set at 2.4 kHz.   Readability is very good.   I will have to dig out my
>> 1950's copies of QST and see just why we decided to use single sideband in
>> the first place. Now we watch movies on a 4 inch screen with often
>> non-descript earbuds and wonder if I have wasted my money on these speaker
>> systems with close to 200 drivers and with a screen that allows me to see
>> Aaron Rogers at much larger than full size.   I think Yul said it best
> when
>> he commented "T'is a puzzlement!"
> 
> 
> To me also. I cannot imagine why someone would run AM at all because one
> can do precisely the same thing using SSB at 1/8 the power and 1/2 the
> bandwidth. But I was treating the question as a technical discussion.
> Understanding the production of a good AM signal is interesting even if I
> cannot imagine why anyone would bother. The last time I was concerned with
> producing a good AM signal I was in Junior High School and playing on the
> CB band with my friends. Yes, I modified an AM ham transmitter with
> high-level modulation so I could have a good 50W signal. Now? No so much.
> 
> But that doesn't mean that others aren't interested in producing a high
> quality AM signal. Like I said, it is a technical challenge.
> 
> And I admit to playing with vacuum-tube audio and steam engines for fun as
> well. Who's to say?
> 
> -- 
> Brian Lloyd, WB6RQN/J79BPL
> 3191 Western Dr.
> Cameron Park, CA 95682
> br...@lloyd.com
> +1.767.617.1365 (Dominica)
> +1.916.877.5067 (USA)
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Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues

[Alan P. Biddle]

One culprit is Carbonite.  Whenever it decides to do an update, it trashes
the TX and RX audio as described. I always pause it before Flexing.

Alan
WA4SCA


-Original Message-
From: flexradio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Guy Harris
Sent: Monday, January 02, 2012 3:36 PM
To: flexradio@flex-radio.biz
Subject: Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues

Tom,

I've not had the problem myself but have heard of others on this list 
with the issue.
As I recall it ends up being some automated service on your computer 
such as automatic file backup or something else that comes alive after a 
time...

~~Guy




On 1/2/2012 1:06 PM, TM wrote:
> I am having a problem with my new Flex 3000 and PSDR 2.2.3.  After the
radio
> has been turned on for some time the audio becomes very distorted.
> Sometimes, this takes the form of "motor-boating" and at other times it is
> more like a low freq hum on top of signals.   This seems to happen after
> perhaps 30 minutes of on time.  As soon as I stop PSDR and restart it via
> the "Start" button the problem disappears.
>
>
>
> I have experimented with all the combinations of buffer size and sample
rate
> but to no avail.  My computer is not the latest - about five years old -
but
> seems to work OK in other respects with the radio.  The CPU usage runs
about
> 60% while using PSDR along with Explorer and Outlook running.  It is a
3GHz
> dual core Pentium with 3 GB memory and running Windows 7.  Probably a new
> computer in my future soon!
>
>
>
> Would appreciate any advice/hints as to a fix.
>
>
>
> Thanks.
>
>
>
> 73, Tom K1FR
>
>
>
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Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues

[Guy Harris]

Tom,

I've not had the problem myself but have heard of others on this list 
with the issue.
As I recall it ends up being some automated service on your computer 
such as automatic file backup or something else that comes alive after a 
time...


~~Guy




On 1/2/2012 1:06 PM, TM wrote:

I am having a problem with my new Flex 3000 and PSDR 2.2.3.  After the radio
has been turned on for some time the audio becomes very distorted.
Sometimes, this takes the form of "motor-boating" and at other times it is
more like a low freq hum on top of signals.   This seems to happen after
perhaps 30 minutes of on time.  As soon as I stop PSDR and restart it via
the "Start" button the problem disappears.



I have experimented with all the combinations of buffer size and sample rate
but to no avail.  My computer is not the latest - about five years old - but
seems to work OK in other respects with the radio.  The CPU usage runs about
60% while using PSDR along with Explorer and Outlook running.  It is a 3GHz
dual core Pentium with 3 GB memory and running Windows 7.  Probably a new
computer in my future soon!



Would appreciate any advice/hints as to a fix.



Thanks.



73, Tom K1FR



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Re: [Flexradio] PSDR and/or Flex 3000 Audio Issues

[Ed Wilson]

Tom,

I have been working almost all JT-65 over the past few months, but I have 
noticed a somewhat similar problem that can only be resolved by stopping and 
restarting PSDR 2.2.3 (Flex-5000 running under Win 7/32). The problem seems to 
cause receive issues as well. My problem normally takes much more that 30 
minutes to rear its ugly head and I cannot seem to predict when it may occur.


Ed, K0KC




 From: TM 
To: flexradio@flex-radio.biz 
Sent: Monday, January 2, 2012 4:06 PM
Subject: [Flexradio] PSDR and/or Flex 3000 Audio Issues
 
I am having a problem with my new Flex 3000 and PSDR 2.2.3.  After the radio
has been turned on for some time the audio becomes very distorted.
Sometimes, this takes the form of "motor-boating" and at other times it is
more like a low freq hum on top of signals.   This seems to happen after
perhaps 30 minutes of on time.  As soon as I stop PSDR and restart it via
the "Start" button the problem disappears.



I have experimented with all the combinations of buffer size and sample rate
but to no avail.  My computer is not the latest - about five years old - but
seems to work OK in other respects with the radio.  The CPU usage runs about
60% while using PSDR along with Explorer and Outlook running.  It is a 3GHz
dual core Pentium with 3 GB memory and running Windows 7.  Probably a new
computer in my future soon!



Would appreciate any advice/hints as to a fix. 



Thanks.



73, Tom K1FR



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[Flexradio] PSDR and/or Flex 3000 Audio Issues

[TM]

I am having a problem with my new Flex 3000 and PSDR 2.2.3.  After the radio
has been turned on for some time the audio becomes very distorted.
Sometimes, this takes the form of "motor-boating" and at other times it is
more like a low freq hum on top of signals.   This seems to happen after
perhaps 30 minutes of on time.  As soon as I stop PSDR and restart it via
the "Start" button the problem disappears.

 

I have experimented with all the combinations of buffer size and sample rate
but to no avail.  My computer is not the latest - about five years old - but
seems to work OK in other respects with the radio.  The CPU usage runs about
60% while using PSDR along with Explorer and Outlook running.  It is a 3GHz
dual core Pentium with 3 GB memory and running Windows 7.  Probably a new
computer in my future soon!

 

Would appreciate any advice/hints as to a fix. 

 

Thanks.

 

73, Tom K1FR

 

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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Brian Lloyd]

On Mon, Jan 2, 2012 at 12:43 PM, Burt  wrote:

> You can use a computer generated voice and you won't even have to speak
> (sounds not all that different from SSB).


And reduce the bit-rate. We call that a CODEC. Very useful. You use one in
your cell phone every day.


> Why don't you advise broadcast stations they can use SSB? AM sounds
> natural even if it is less efficent.
> You can take your vitamins in a pill (AKA SSB) or eat them (AM),
>

Well, if we are speaking technically rather than emotionally, there is no
difference between SSB and AM as far as transmitting voice or music is
concerned other than the substantially greater efficiencies with SSB. The
carrier contains 3/4 of the transmitted power but carries no information
and serves no purpose other than to provide a convenient signal against
which to demodulate the sidebands. Both sidebands are identical so one of
them is redundant. If you demodulate an SSB signal by reinjecting the
carrier at precisely the correct frequency (very easy to do today), the
result is indistinguishable from the same baseband signal transmitted by
classical AM and then recovered using an envelope detector. (Well, not
exactly. The envelope detector tends to introduce more nonlinearity than a
product detector.)

But I am sorry I entered into this discussion. Please carry on without me.

-- 
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
br...@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
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Re: [Flexradio] {SPAM?} Re: Flex 1500 using External Transmitter for AM

[Burt]

And cheaper, I can talk to my daughter in Asia for free online

--- On Mon, 1/2/12, Mike Manship  wrote:


> Why would anyone use ham radio when
> it would be so much easier just to 
> use a telephone?
> 
> 73 de Mike W9OJ


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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Burt]

You can use a computer generated voice and you won't even have to speak (sounds 
not all that different from SSB). Why don't you advise broadcast stations they 
can use SSB? AM sounds natural even if it is less efficent.
You can take your vitamins in a pill (AKA SSB) or eat them (AM),
Burt

> From: Brian Lloyd 
> To me also. I cannot imagine why someone would run AM at
> all because one
> can do precisely the same thing using SSB at 1/8 the power
> and 1/2 the
> bandwidth.

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Re: [Flexradio] {SPAM?} Re: Flex 1500 using External Transmitter for AM

[Peter G. Viscarola]

>>
> > Why would anyone use ham radio when it would be so much easier just 
> > to use
> > a telephone?
> >

There's so much talk about "radio" in my house, my wife often absent mindedly 
refers to her cell phone as her "radio."  As in "I forgot to charge my radio"...

I try to correct her, but... well... it IS a radio.  Sure, it's not a HAM 
radio, but... you know...  I guess it COULD be :-)

I've played with AM on my SDR-1000...  it was definitely fun.  I found some 
very nice folks to talk with whenever I tried,

Peter
K1PGV


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Re: [Flexradio] {SPAM?} Re: Flex 1500 using External Transmitter for AM

[Neal Campbell]

There is no magic in the telephone. Why would they want to talk to a girl
when they can see a picture of one? Its the thrill of the unknown!

On Mon, Jan 2, 2012 at 3:01 PM, Brian Lloyd  wrote:

> On Mon, Jan 2, 2012 at 11:58 AM, Mike Manship  wrote:
>
> > Why would anyone use ham radio when it would be so much easier just to
> use
> > a telephone?
> >
>
> That is the question my students keep asking me. Evidently they remain
> unconvinced by my arguments.
>
> --
> Brian Lloyd, WB6RQN/J79BPL
> 3191 Western Dr.
> Cameron Park, CA 95682
> br...@lloyd.com
> +1.767.617.1365 (Dominica)
> +1.916.877.5067 (USA)
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> http://www.flexradio.com/
>



-- 
Neal Campbell
Owner
Abroham Neal LLC
Work:+1 540 645 5394
Mobile:  +1 540 645 8171
Free Shipping on Computers!
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Re: [Flexradio] {SPAM?} Re: Flex 1500 using External Transmitter for AM

[Brian Lloyd]

On Mon, Jan 2, 2012 at 11:58 AM, Mike Manship  wrote:

> Why would anyone use ham radio when it would be so much easier just to use
> a telephone?
>

That is the question my students keep asking me. Evidently they remain
unconvinced by my arguments.

-- 
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
br...@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
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Re: [Flexradio] {SPAM?} Re: Flex 1500 using External Transmitter for AM

[Mike Manship]

Why would anyone use ham radio when it would be so much easier just to 
use a telephone?


73 de Mike W9OJ


On 1/2/2012 2:12 PM, Brian Lloyd wrote:

On Mon, Jan 2, 2012 at 10:44 AM, Lee Mushel  wrote:



Gentlemen,

I must admit that I don't understand any of this.   With the bands as
crowded as they are these days I find myself receiving with the filtering
set at 2.4 kHz.   Readability is very good.   I will have to dig out my
1950's copies of QST and see just why we decided to use single sideband in
the first place. Now we watch movies on a 4 inch screen with often
non-descript earbuds and wonder if I have wasted my money on these speaker
systems with close to 200 drivers and with a screen that allows me to see
Aaron Rogers at much larger than full size.   I think Yul said it best when
he commented "T'is a puzzlement!"



To me also. I cannot imagine why someone would run AM at all because one
can do precisely the same thing using SSB at 1/8 the power and 1/2 the
bandwidth. But I was treating the question as a technical discussion.
Understanding the production of a good AM signal is interesting even if I
cannot imagine why anyone would bother. The last time I was concerned with
producing a good AM signal I was in Junior High School and playing on the
CB band with my friends. Yes, I modified an AM ham transmitter with
high-level modulation so I could have a good 50W signal. Now? No so much.

But that doesn't mean that others aren't interested in producing a high
quality AM signal. Like I said, it is a technical challenge.

And I admit to playing with vacuum-tube audio and steam engines for fun as
well. Who's to say?




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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Rick Tharrington]

AM for ever my brothers! Just another way to have fun with radio! I love you
Intellectuals ...
God Bless Rick :)


-Original Message-
From: flexradio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Brian Lloyd
Sent: Monday, January 02, 2012 2:13 PM
To: Lee Mushel
Cc: flexradio@flex-radio.biz
Subject: Re: [Flexradio] Flex 1500 using External Transmitter for AM

On Mon, Jan 2, 2012 at 10:44 AM, Lee Mushel  wrote:

> Gentlemen,
>
> I must admit that I don't understand any of this.   With the bands as
> crowded as they are these days I find myself receiving with the filtering
> set at 2.4 kHz.   Readability is very good.   I will have to dig out my
> 1950's copies of QST and see just why we decided to use single sideband in
> the first place. Now we watch movies on a 4 inch screen with often
> non-descript earbuds and wonder if I have wasted my money on these speaker
> systems with close to 200 drivers and with a screen that allows me to see
> Aaron Rogers at much larger than full size.   I think Yul said it best
when
> he commented "T'is a puzzlement!"


To me also. I cannot imagine why someone would run AM at all because one
can do precisely the same thing using SSB at 1/8 the power and 1/2 the
bandwidth. But I was treating the question as a technical discussion.
Understanding the production of a good AM signal is interesting even if I
cannot imagine why anyone would bother. The last time I was concerned with
producing a good AM signal I was in Junior High School and playing on the
CB band with my friends. Yes, I modified an AM ham transmitter with
high-level modulation so I could have a good 50W signal. Now? No so much.

But that doesn't mean that others aren't interested in producing a high
quality AM signal. Like I said, it is a technical challenge.

And I admit to playing with vacuum-tube audio and steam engines for fun as
well. Who's to say?

-- 
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
br...@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Brian Lloyd]

On Mon, Jan 2, 2012 at 10:44 AM, Lee Mushel  wrote:

> Gentlemen,
>
> I must admit that I don't understand any of this.   With the bands as
> crowded as they are these days I find myself receiving with the filtering
> set at 2.4 kHz.   Readability is very good.   I will have to dig out my
> 1950's copies of QST and see just why we decided to use single sideband in
> the first place. Now we watch movies on a 4 inch screen with often
> non-descript earbuds and wonder if I have wasted my money on these speaker
> systems with close to 200 drivers and with a screen that allows me to see
> Aaron Rogers at much larger than full size.   I think Yul said it best when
> he commented "T'is a puzzlement!"


To me also. I cannot imagine why someone would run AM at all because one
can do precisely the same thing using SSB at 1/8 the power and 1/2 the
bandwidth. But I was treating the question as a technical discussion.
Understanding the production of a good AM signal is interesting even if I
cannot imagine why anyone would bother. The last time I was concerned with
producing a good AM signal I was in Junior High School and playing on the
CB band with my friends. Yes, I modified an AM ham transmitter with
high-level modulation so I could have a good 50W signal. Now? No so much.

But that doesn't mean that others aren't interested in producing a high
quality AM signal. Like I said, it is a technical challenge.

And I admit to playing with vacuum-tube audio and steam engines for fun as
well. Who's to say?

-- 
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
br...@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Lee Mushel]

Gentlemen,

I must admit that I don't understand any of this.   With the bands as 
crowded as they are these days I find myself receiving with the filtering 
set at 2.4 kHz.   Readability is very good.   I will have to dig out my 
1950's copies of QST and see just why we decided to use single sideband in 
the first place.  Now we watch movies on a 4 inch screen with often 
non-descript earbuds and wonder if I have wasted my money on these speaker 
systems with close to 200 drivers and with a screen that allows me to see 
Aaron Rogers at much larger than full size.   I think Yul said it best when 
he commented "T'is a puzzlement!"


73

Lee   K9WRU
- Original Message - 
From: "Brian Lloyd" 

To: "Bill Marvin" 
Cc: 
Sent: Monday, January 02, 2012 11:01 AM
Subject: Re: [Flexradio] Flex 1500 using External Transmitter for AM



On Mon, Jan 2, 2012 at 8:17 AM, Bill Marvin  wrote:


Brian,

You are obviously not familiar with the FT-102. A properly modified 
FT-102

can sound excellent on AM. There is nothing wrong with the old tube rigs
you
mention. But, they all need modifications to make them sound good on
AM. The


fact that a transmitter uses high level plate modulation doesn't guarantee

that it sounds good.



That is certainly true but I would assume that anyone thinking of doing
"HiFi" AM is going to properly treat the low-level audio and modulation
stages anyway. That means getting rid of cathode bias with electrolytic
bypass caps and replacing it with fixed-bias, increasing interstage
coupling caps to improve low-frequency response, changing filters, etc. 
The

key here is that high-level modulation tends to be a better starting point
for a quality AM signal.



In fact, most of the 100W class AM transmitters from
the 50's and 60's sound terrible until they are modified. Most of them 
had

restricted audio bandwidth and horrible things like clippers and high/low
pass audio filters.



Well, that kinda goes without saying. They were definitely not HiFi but
that is easy to rectify.

But maybe I just take that stuff for granted as I spent a significant
portion of my life designing, building, and modifying tube HiFi gear.

--
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
br...@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Brian Lloyd]

On Mon, Jan 2, 2012 at 8:17 AM, Bill Marvin  wrote:

> Brian,
>
> You are obviously not familiar with the FT-102. A properly modified FT-102
> can sound excellent on AM. There is nothing wrong with the old tube rigs
> you
> mention. But, they all need modifications to make them sound good on
> AM. The

fact that a transmitter uses high level plate modulation doesn't guarantee
> that it sounds good.


That is certainly true but I would assume that anyone thinking of doing
"HiFi" AM is going to properly treat the low-level audio and modulation
stages anyway. That means getting rid of cathode bias with electrolytic
bypass caps and replacing it with fixed-bias, increasing interstage
coupling caps to improve low-frequency response, changing filters, etc. The
key here is that high-level modulation tends to be a better starting point
for a quality AM signal.


> In fact, most of the 100W class AM transmitters from
> the 50's and 60's sound terrible until they are modified. Most of them had
> restricted audio bandwidth and horrible things like clippers and high/low
> pass audio filters.
>

Well, that kinda goes without saying. They were definitely not HiFi but
that is easy to rectify.

But maybe I just take that stuff for granted as I spent a significant
portion of my life designing, building, and modifying tube HiFi gear.

-- 
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
br...@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Rick Tharrington]

I have you to know that NC4L MALCOLM EISELMAN in Hollywood FL has been thru
and rebuilt my FT-102 and has done hundreds of FT-102's. I check into many
40 meter and 75 meter AM heavy metal frequencies, and get GREAT reports with
my FT-102 from all those AM connoisseurs. 45  to 50 watts carrier and 130
watts forward modulator.
Just Its nice to be able to bust thru the QRN and have a wider AM filter
selection with a SDR radio.
Thanks  73 Rick  

-Original Message-
From: Bill Marvin [mailto:bmar...@comcast.net] 
Sent: Monday, January 02, 2012 11:17 AM
To: 'Brian Lloyd'; 'Rick Tharrington'
Cc: flexradio@flex-radio.biz
Subject: RE: [Flexradio] Flex 1500 using External Transmitter for AM

Brian,

You are obviously not familiar with the FT-102. A properly modified FT-102
can sound excellent on AM. There is nothing wrong with the old tube rigs you
mention. But, they all need modifications to make them sound good on AM. The
fact that a transmitter uses high level plate modulation doesn't guarantee
that it sounds good. In fact, most of the 100W class AM transmitters from
the 50's and 60's sound terrible until they are modified. Most of them had
restricted audio bandwidth and horrible things like clippers and high/low
pass audio filters.

My 2 cents...

73,
Bill - W1MPY


-Original Message-
From: flexradio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Brian Lloyd
Sent: Monday, January 02, 2012 10:56 AM
To: Rick Tharrington
Cc: flexradio@flex-radio.biz
Subject: Re: [Flexradio] Flex 1500 using External Transmitter for AM

On Mon, Jan 2, 2012 at 7:34 AM, Rick Tharrington  wrote:

> Flex 1500 using External Transmitter
>
> For AM operation I'm using my Yaesu FT-102 to xmit with and receive with
> the
> Flex 1500 with a lot wider AM filter selection.  Anyone have any
additional
> feedback?
>

Yes. The FT-102 is not really a great AM transmitter. It is an solid-state
SSB transceiver with a tube driver and tube PA but it is in no-way a "tube"
transmitter as virtually all the work is done by transistors at low levels.
If you want that classical tube broadcast sound you need an all-tube
transmitter with high-level modulation. That means screen grid modulation
(OK) or plate modulation (best).

So try looking around at boat anchors. There were a lot of near-100W AM
transmitters made in the '50s and early '60s. Many were billed as novice
rigs and could be modified to be driven by your 1500 rather than by the
built-in crystal oscillator or VFO. Now it will provide more power from
your 1500 but it will also allow you to do high-level modulation. Just let
the 1500 provide the carrier and use the external transmitter's modulator.

Someone was talking about modifying the DX-60 to be a PA for the 1500. This
is an excellent solution as it will allow the 1500 to deliver about 50W PEP
output but you can use the screen modulation of the 6146 in the DX-60 to
produce AM.

-- 
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
br...@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
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Re: [Flexradio] Possible AM drive issue?

[W1AEX - Rob]

Yup, as Bill said, it will work fine that way, but you are missing out 
on an interesting feature for the AM mode that is built into the Flex - 
PSDR architecture. From page 161 of the PowerSDR 2.x manual:


"The Carrier Level determines the percentage of carrier level to be 
applied to the transmit signal where
100% is one quarter of full power output (25W when Drive on the front 
console is set to 100). So a
setting of 80 would yield roughly 16W when Drive is set to 100. This is 
useful as it allows the

modulation to appear much stronger due to the weaker carrier."

I typically run a carrier level of 45% and a drive level of 12 - 20 to 
drive my pair of 3-500's to reach an AM carrier level of between 120 
watts to 200 watts output. Watching my bench scope, I set up the audio 
chain to modulate to roughly 125% - 135% positive. It's certainly 
capable of even higher percentages without the disadvantages of a plate 
modulated rig which will splatter and distort as it hits the baseline in 
the negative direction. Many boat anchor receivers with simple diode 
detectors have difficulty handling signals with positive peaks beyond 
135% so that has to be kept in mind. Also, if you drop the carrier 
percentage too low, you will begin to sound more like a double sideband 
signal than an AM signal. At any rate, it's fun to mess around with!


73,

Rob W1AEX


I am not sure why you would ever run with the carrier level at anything 
other than 100%.


73,
Harry
W0LS




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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Bill Marvin]

Brian,

You are obviously not familiar with the FT-102. A properly modified FT-102
can sound excellent on AM. There is nothing wrong with the old tube rigs you
mention. But, they all need modifications to make them sound good on AM. The
fact that a transmitter uses high level plate modulation doesn't guarantee
that it sounds good. In fact, most of the 100W class AM transmitters from
the 50's and 60's sound terrible until they are modified. Most of them had
restricted audio bandwidth and horrible things like clippers and high/low
pass audio filters.

My 2 cents...

73,
Bill - W1MPY


-Original Message-
From: flexradio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Brian Lloyd
Sent: Monday, January 02, 2012 10:56 AM
To: Rick Tharrington
Cc: flexradio@flex-radio.biz
Subject: Re: [Flexradio] Flex 1500 using External Transmitter for AM

On Mon, Jan 2, 2012 at 7:34 AM, Rick Tharrington  wrote:

> Flex 1500 using External Transmitter
>
> For AM operation I'm using my Yaesu FT-102 to xmit with and receive with
> the
> Flex 1500 with a lot wider AM filter selection.  Anyone have any
additional
> feedback?
>

Yes. The FT-102 is not really a great AM transmitter. It is an solid-state
SSB transceiver with a tube driver and tube PA but it is in no-way a "tube"
transmitter as virtually all the work is done by transistors at low levels.
If you want that classical tube broadcast sound you need an all-tube
transmitter with high-level modulation. That means screen grid modulation
(OK) or plate modulation (best).

So try looking around at boat anchors. There were a lot of near-100W AM
transmitters made in the '50s and early '60s. Many were billed as novice
rigs and could be modified to be driven by your 1500 rather than by the
built-in crystal oscillator or VFO. Now it will provide more power from
your 1500 but it will also allow you to do high-level modulation. Just let
the 1500 provide the carrier and use the external transmitter's modulator.

Someone was talking about modifying the DX-60 to be a PA for the 1500. This
is an excellent solution as it will allow the 1500 to deliver about 50W PEP
output but you can use the screen modulation of the 6146 in the DX-60 to
produce AM.

-- 
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
br...@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Tony Estep]

On Mon, Jan 2, 2012 at 9:34 AM, Rick Tharrington  wrote:
> ... Got a nice tube AM transmitter ...
=
Rick, if you feel like a little home-brewing, here's a terrific AM
transmitter that will rule the band:

http://home.comcast.net/~mmosh/w3phl/w3phl.html

It'll make you lots of friends, too.

73,
Tony KT0NY


-- 
http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352

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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Brian Lloyd]

On Mon, Jan 2, 2012 at 7:34 AM, Rick Tharrington  wrote:

> Flex 1500 using External Transmitter
>
> For AM operation I'm using my Yaesu FT-102 to xmit with and receive with
> the
> Flex 1500 with a lot wider AM filter selection.  Anyone have any additional
> feedback?
>

Yes. The FT-102 is not really a great AM transmitter. It is an solid-state
SSB transceiver with a tube driver and tube PA but it is in no-way a "tube"
transmitter as virtually all the work is done by transistors at low levels.
If you want that classical tube broadcast sound you need an all-tube
transmitter with high-level modulation. That means screen grid modulation
(OK) or plate modulation (best).

So try looking around at boat anchors. There were a lot of near-100W AM
transmitters made in the '50s and early '60s. Many were billed as novice
rigs and could be modified to be driven by your 1500 rather than by the
built-in crystal oscillator or VFO. Now it will provide more power from
your 1500 but it will also allow you to do high-level modulation. Just let
the 1500 provide the carrier and use the external transmitter's modulator.

Someone was talking about modifying the DX-60 to be a PA for the 1500. This
is an excellent solution as it will allow the 1500 to deliver about 50W PEP
output but you can use the screen modulation of the 6146 in the DX-60 to
produce AM.

-- 
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
br...@lloyd.com
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
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Re: [Flexradio] Flex 1500 using External Transmitter for AM

[Rick Tharrington]

Flex 1500 using External Transmitter

For AM operation I'm using my Yaesu FT-102 to xmit with and receive with the
Flex 1500 with a lot wider AM filter selection.  Anyone have any additional
feedback?
Here's what I'm doing...

First I turn off in PowerSDR xmit in set up, and make it a receive only.
Use the external receiver antenna function on the FT-102. (antenna switching
relay inside the 102 using same ant.).
Use the ACC-1 jack on the FT-102 to open up the audio output on the Flex.
(audio mute)
Seems to be working fine for past 3 weeks.
Got a nice tube AM transmitter and a great SDR AM receiver!

Rick Kd4jrx FM14ab



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Re: [Flexradio] Possible AM drive issue?

[Bill Marvin]

Harry,

While setting the AM carrier level to 100 will certainly work, your ability
to achieve positive modulation peaks over 100% is limited. With the AM
carrier level set at 40 you can easily achieve 150% positive peaks without
hitting the baseline with your negative peaks. Just my observations.

73,
Keep on Flexing

Bill - W1MPY


-Original Message-
From: flexradio-boun...@flex-radio.biz
[mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Harry Williams
Sent: Sunday, January 01, 2012 8:54 PM
To: audio...@q.com; FLEX USERS
Subject: Re: [Flexradio] Possible AM drive issue?

Hi Jim...I use the AM mode almost daily. I always leave the AM carrier at 
100% and set the drive around 10. I am not sure why you would ever run with 
the carrier level at anything other than 100%. I drive an Alpha amp and 
never have an issue. I have an AM profile so every time I select it the 
drive is set to 10 and I am ready to go.

73,
Harry
W0LS



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Re: [Flexradio] Flex 5000 Display Centering

[Guy Harris]

Rick,

I believe it has something to do with the IF frequency being 9kHz(?).

~~Guy



On 1/2/2012 6:14 AM, Rick Lehman wrote:

Happy New Year Flexers

I am using the Flex5000.  I have noticed that when setting the panadapter 
display width to settings of 1X and 0.5X  the listening bandwidth cannot be 
centered.  On USB for example the listening frequency is approximately 80% 
shifted to the right rather than being centered in the middle of the display 
when using the 0.5X setting.The pan slider is inoperable when using 0.5x.  
This is not a big deal, but when a station is operating split the upper band 
can be partially or fully off the display.  Does anyone know of any setting 
adjustments that can be used to correct this when using 0.5X and 1.0X display 
settings?

Rick- WB4EJC
Coconut Creek, Fl (near Ft Lauderdale)
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[Flexradio] Flex 5000 Display Centering

[Rick Lehman]

Happy New Year Flexers

I am using the Flex5000.  I have noticed that when setting the panadapter 
display width to settings of 1X and 0.5X  the listening bandwidth cannot be 
centered.  On USB for example the listening frequency is approximately 80% 
shifted to the right rather than being centered in the middle of the display 
when using the 0.5X setting.The pan slider is inoperable when using 0.5x.  
This is not a big deal, but when a station is operating split the upper band 
can be partially or fully off the display.  Does anyone know of any setting 
adjustments that can be used to correct this when using 0.5X and 1.0X display 
settings?

Rick- WB4EJC
Coconut Creek, Fl (near Ft Lauderdale)
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