Re: [digitalradio] PSKMAIL ?

[Robert Thompson]

You can run Vista under VMWare (or any other virtualizer/emulator)
under Linux, OSX, or anywhere else without violating the Microsoft
license. You just can't do so with the cheaper Home Edition. The real
drive behind this is actually OSX. A lot of people are starting to use
OSX as their main system and falling back to Windows only when they
need to do something with windows-specific software. Since such a user
rarely spends even 25% of their time inside the Windows guest OS, a
lot of people were buying the cut-down Home Edition and saving a ton
of money by not paying for all the features the were never going to
use. But MS had been counting on widespread adoption of the higher
tiers of Vista. So, to fix *some* of the hemorrhaging future
revenue, they changed their EULA for Windows to prevent using any of
the basic-tier OS products with virtualization.

Besides (and to get back on topic), there are currently no such
constraints on XP, and for ham soundcard software not written to
understand the new Vista sound layer, XP makes for a more reliable
(and *vastly* lower overhead) execution platform.

Re: [digitalradio] K3UK Interactive Pages

[John Becker]

And in a day or two you will get a message saying
that for  you can still do it.

[digitalradio] center of the waterfall question

[Tooner]

Hey group, this is Frank K2NCC,

Just wanted to ask what is surely a noobie question or two.

If my waterfall (using MixW) can receive a signal between 300KHz and
3000KHz on the spectrum, that's my bandwidth of the radio, right? 
Seems to match what the manual says, 2700.

I've read where PSK31 is best at 1000KHz on the audio marker in a QSO.
But, one could QSO pretty far on either side of that line if you
avoid the fringes.  Right?

Oh, if it matters, the radio is TS-830S and a Signalink.

Well, the halfway point on the waterfall for me is about 1650 on the
audio marker.

I'm guessing that whatever frequency I'm on when I tune the signal to
that 1650 point, is the frequency they're transmitting on.  I asked
and have been very close, but can only hope that my rig is on the
mark.  Either way, it's not been off by more than 3Hz.  Since the rig
only has six digit display, I round it off anyway.

Is that the best place to transmit and receive?  Dead center of the
frequency seems to be the ideal place if both sides are doing the same.

73.  Frank K2NCC

[digitalradio] center of the waterfall question

[Tooner]

Hey group, this is Frank K2NCC,

Just wanted to ask what is surely a noobie question or two.

If my waterfall (using MixW) can receive a signal between 300KHz and
3000KHz on the spectrum, that's my bandwidth of the radio, right? 
Seems to match what the manual says, 2700.

I've read where PSK31 is best at 1000KHz on the audio marker in a QSO.
But, one could QSO pretty far on either side of that line if you
avoid the fringes.  Right?

Oh, if it matters, the radio is TS-830S and a Signalink.

Well, the halfway point on the waterfall for me is about 1650 on the
audio marker.

I'm guessing that whatever frequency I'm on when I tune the signal to
that 1650 point, is the frequency they're transmitting on.  I asked
and have been very close, but can only hope that my rig is on the
mark.  Either way, it's not been off by more than 3Hz.  Since the rig
only has six digit display, I round it off anyway.

Is that the best place to transmit and receive?  Dead center of the
frequency seems to be the ideal place if both sides are doing the same.

73.  Frank K2NCC

[digitalradio] Fwd: [tapr-announce] DCC 2007 - Did you make your hotel reservations?

[Mark Thompson]

In a message dated 9/4/2007 10:26:10 P.M. Central Daylight Time, [EMAIL 
PROTECTED] writes: 

26th Annual ARRL/TAPR Digital Communications Conference 
September 28-30, 2007 
Hartford, CT 
http://www.tapr.org/dcc 

-- -- -- -- -- -- -- -- -- 

Did you make your hotel reservations? 

If you did, great! If you did not, you get a short reprieve. The 
conference hotel has graciously extended the DCC room rate until Sep. 10th. 
Call the hotel directly and ask for the DCC rates. Hotel information is 
available on the DCC web side http://www.tapr.org/dcc. 

-- -- -- -- -- -- -- -- -- 

Banquet Speaker - Bruce Perens K6BP 

It is our pleasure to have Bruce Perens, K6BP, noted open source advocate as 
the DCC Banquet speaker. Bruce is a leader in the Free Software and Open 
Source community. He is creator of the Open Source Definition, the 
manefesto of the Open Source movement in Software. 

-- -- -- -- -- -- -- -- -- 

Introductory Talks 

There are two introduction to talks scheduled for Saturday morning. 

Introduction to Eagle CAD by Dan Welch, W6DFW 
Introduction to HF Digital by Steve Ford, WB8IMY 

-- -- -- -- -- -- -- -- -- 

Sunday Seminar 

A Stroll Through Software Radio, Information Theory, and Some Applications 
By Bob McGwier, N4HY 

The Sunday seminar this year will cover several technical topics. Software 
Radio will be the main theme and a package of tutorials and give away 
software will be a part of the seminar. The attendee will be exposed to the 
basic concepts of and building blocks of a simple software radio system and 
some information theory exposure will be given. The quadrature sampling 
detector will be analyzed and why it is such a wonder will be discussed. Its 
wonderful properties make it an excellent choice for a linear transponder 
system so its use in the AMSAT software defined transponder will be 
discussed. Some necessary information theory will be discussed with 
examples with the goal of leaving the attendee with a working knowledge of 
the practical use of this theory in thinking about communication systems. 
Finally, as time permits, we will show some software radio systems from the 
$30 softrock40 to GnuRadio/USRP doing multi megabit per second OFDM on the 
air and then a technical description of the Flex5000 and DttSP will be 
given. 

-- -- -- -- -- -- -- -- -- 

Conference Registration 

You can register for the DCC online at http://www.tapr.org/dcc 





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Luggage? GPS? Comic books? 
Check out fitting gifts for grads at Yahoo! Search
http://search.yahoo.com/search?fr=oni_on_mailp=graduation+giftscs=bz---BeginMessage---
26th Annual ARRL/TAPR Digital Communications Conference
September 28-30, 2007
Hartford, CT
http://www.tapr.org/dcc

-- -- -- -- -- -- -- -- --

Did you make your hotel reservations?

If you did, great!  If you did not, you get a short reprieve.   The
conference hotel has graciously extended the DCC room rate until Sep. 10th.
Call the hotel directly and ask for the DCC rates.  Hotel information is
available on the DCC web side http://www.tapr.org/dcc.

-- -- -- -- -- -- -- -- --

Banquet Speaker - Bruce Perens K6BP

It is our pleasure to have Bruce Perens, K6BP, noted open source advocate as
the DCC Banquet speaker.  Bruce is a leader in the Free Software and Open
Source community.  He is creator of the  Open Source Definition, the
manefesto of the Open Source movement in Software.

-- -- -- -- -- -- -- -- --

Introductory Talks

There are two introduction to talks scheduled for Saturday morning.

Introduction to Eagle CAD by Dan Welch, W6DFW
Introduction to HF Digital by Steve Ford, WB8IMY

-- -- -- -- -- -- -- -- --

Sunday Seminar

A Stroll Through Software Radio, Information Theory, and Some Applications
By Bob McGwier, N4HY

The Sunday seminar this year will cover several technical topics.  Software
Radio will be the main theme and a package of tutorials and give away
software will be a part of the seminar.  The attendee will be exposed to the
basic concepts of and building blocks of a simple software radio system and
some information theory exposure will be given.  The quadrature sampling
detector will be analyzed and why it is such a wonder will be discussed. Its
wonderful properties make it an excellent choice for a linear transponder
system so its use in the AMSAT software defined transponder will be
discussed.  Some necessary information theory will be discussed with
examples with the goal of leaving the attendee with a working knowledge of
the practical use of this theory in thinking about communication systems.