Re: [digitalradio] Linux Adds Real Time Features.

2006-10-16 Thread KV9U
Danny,

It depends upon the politics of the country. As a farmer, and one who 
follows this kind of thing fairly closely, it is clear to me that there 
is currently enough food to go around although there is going to come a 
time where we simply can not support the world population which is 
increasing a billion people, primarily in the developing world, just 
over each decade.

Sadly, food withholding was used to control and kill millions of people 
in the past and it is still being used as a weapon in some parts of the 
world. Libya may be the first country to put this many computers in the 
hands of each child but they don't actually have that many kids, just 
over a million and should have plenty to eat considering the oil 
revenues and changes in the politics of that country in recent time.

It is going to be interesting to see the long term effects of allowing 
this kind of technology to the masses in a developing country. My guess 
is that it will cause changes, some unintended, because children easily 
accept their environment as normal. Look at the kids of today in 
developing countries that live as if we have always had current 
technology of cell phones, ipods, notebooks, internet, HDTV, etc:)

Rick W.

Danny Douglas wrote:

It sounds like a fine idea.  I just hope they want to insure the kids have
food to eat, before they feed them from the screen.

Danny Douglas N7DC
ex WN5QMX ET2US WA5UKR ET3USA
SV0WPP VS6DD N7DC/YV5 G5CTB all
DX 2-6 years each.
moderator  [EMAIL PROTECTED]
  




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[digitalradio] Re: Wider Bandwidths and Frequency Choices Needed in Future

2006-10-16 Thread expeditionradio
 John K8OCL wrote:
 The ARRL HSMM Working Group recommended at least the same 
 bandwidth for HF digital research and advancement as the 
 current ARRL bandplan recommended for a old legacy mode 
 such as AM. 

Hi John,

There is really no sensible reason that AM should get special
treatment in a bandwidth-based spectrum management plan. Especially,
when bandwidth-based definitions may be used to allow AM on par with
other emission types.

In 2005, I suggested the use of a power/bandwidth mask that would
accomodate AM, as well as provide for other emissions at wider
bandwidth, but with similar spectrum use impact as AM...
See this image: 
http://www.hflink.com/bandplans/spectrum_mask.jpg 

Basically, the power mask definition principle is simple...
If transmitter necessary bandwidth exceeds 3kHz, then:
Power must not exceed 1500W PEP in 3.5kHz occupied bandwidth, 
and power must not exceed 200W PEP in 10kHz occupied bandwidth. 

So, when necessary bandwidth doesn't exceed 3kHz, there is no need for
the operator to measure or calculate bandwidth. It is only when wider
bandwidth is used, that it puts the responsibility upon the operator
to control power vs bandwidth according to the stepped power mask. 

Just think about the kB/s throughput you could deliver with a stepped
power 200W/1.5kW OFDM signal within this mask! Or, alternatively, a
flat response signal with 10kHz bandwidth at 200W. Using time-share
techniques, there are a lot of interesting new things that could be
done. Certainly, there is enough spectrum space to carve out 50kHz of
spectrum for this in the 80m, 15m, and 10m bands for this. 

On the 20m and 40m bands, with a small chunk, maybe 20kHz of spectrum
could be used, and a slightly lower-powered mask could be defined:  

100W @ 3.5kHz Occupied Bandwidth
20W @ 10kHz Occupied Bandwidth

Certainly, this would have less spectrum impact than the kilowatt AM
phone signal that everyone knows and loves so much.

Bonnie Crystal KQ6XA








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Re: [digitalradio] Re: Wider Bandwidths and Frequency Choices Needed in Future

2006-10-16 Thread bruce mallon
OK let me chime in as a long time 6 meters user ...

FIRST .. NO ONE OBJECTS TO DIGITAL MODES .
In fact they do have a place in this hobby however the
problem as we see it is the tiying up of large amounts
of space ( 200 ver 3 kHz ) on bands that ARE widely
used and do cross borders.

SECOND ... NO 6 METER GROUPS WERE CONTACTED I
contacted SMIRK and several other national groups and
no one was asked for there input and when we contacted
the ARRL we were ignored. If your going to ask for
space ( 90%) of a band it would be nice if someone at
least informed all of the thousands of users on your
plans.

THIRD .. The term LEGACY mode explain that to all
of us who have no idea where you came up with that and
it does seem derogatory. I don't see any SSB or AM
groups using any such terms.



Bruce WA4GCH
on 6 since 66
SMIRK# 70 issued 2/74
OOTC, QCWA and LIFE MEMBER ARRL

--- Danny Douglas [EMAIL PROTECTED] wrote:

 I know some have asked for chunks that way, but at
 the same time for chunks
 with larger signal bandwidth.  What I am concerned
 about is some 3 kc signal
 getting on top of us when we are using cw or psk or
 some other narrower
 signal, and wiping us out.  Already happens with
 RTTY , contesia, etc.
 
 Danny Douglas N7DC
 ex WN5QMX ET2US WA5UKR ET3USA
 SV0WPP VS6DD N7DC/YV5 G5CTB all
 DX 2-6 years each.
 moderator  [EMAIL PROTECTED]
 - Original Message - 
 From: expeditionradio [EMAIL PROTECTED]
 To: digitalradio@yahoogroups.com
 Sent: Sunday, October 15, 2006 10:50 PM
 Subject: [digitalradio] Re: Wider Bandwidths and
 Frequency Choices Needed in
 Future
 
 











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Re: [digitalradio] Re: Wider Bandwidths and Frequency Choices Needed in Future

2006-10-16 Thread John Becker
At 10:05 PM 10/15/2006, you wrote:
I know some have asked for chunks that way, but at the same time for chunks
with larger signal bandwidth.  What I am concerned about is some 3 kc signal
getting on top of us when we are using cw or psk or some other narrower
signal, and wiping us out.  Already happens with RTTY , contesia, etc.

It has been a very long time since I have heard a RTTY signal near .070
on any band. That is other then contest weekends.

John














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RE: [digitalradio] Re: Wider Bandwidths and Frequency Choices Needed in Future

2006-10-16 Thread John Champa
Bonnie,

Agree completely.  It makes little sense to give AM such special treatment 
at the
expense of shutting down future digital technical developments on HF.

Power masking!  Very interesting approach to a solution for the dilemma.

The HSMM WG still has one final report to submit by the EOY.  Perhaps John, 
KD6OZH,
may wish to modify his / our original recommendation to the Board to include 
this concept.

John, what say you?

Thanks!
John - K8OCL


From: expeditionradio [EMAIL PROTECTED]
Reply-To: digitalradio@yahoogroups.com
To: digitalradio@yahoogroups.com
Subject: [digitalradio] Re: Wider Bandwidths and Frequency Choices Needed 
in Future
Date: Mon, 16 Oct 2006 12:12:04 -

  John K8OCL wrote:
  The ARRL HSMM Working Group recommended at least the same
  bandwidth for HF digital research and advancement as the
  current ARRL bandplan recommended for a old legacy mode
  such as AM.

Hi John,

There is really no sensible reason that AM should get special
treatment in a bandwidth-based spectrum management plan. Especially,
when bandwidth-based definitions may be used to allow AM on par with
other emission types.

In 2005, I suggested the use of a power/bandwidth mask that would
accomodate AM, as well as provide for other emissions at wider
bandwidth, but with similar spectrum use impact as AM...
See this image:
http://www.hflink.com/bandplans/spectrum_mask.jpg

Basically, the power mask definition principle is simple...
If transmitter necessary bandwidth exceeds 3kHz, then:
Power must not exceed 1500W PEP in 3.5kHz occupied bandwidth,
and power must not exceed 200W PEP in 10kHz occupied bandwidth.

So, when necessary bandwidth doesn't exceed 3kHz, there is no need for
the operator to measure or calculate bandwidth. It is only when wider
bandwidth is used, that it puts the responsibility upon the operator
to control power vs bandwidth according to the stepped power mask.

Just think about the kB/s throughput you could deliver with a stepped
power 200W/1.5kW OFDM signal within this mask! Or, alternatively, a
flat response signal with 10kHz bandwidth at 200W. Using time-share
techniques, there are a lot of interesting new things that could be
done. Certainly, there is enough spectrum space to carve out 50kHz of
spectrum for this in the 80m, 15m, and 10m bands for this.

On the 20m and 40m bands, with a small chunk, maybe 20kHz of spectrum
could be used, and a slightly lower-powered mask could be defined:

100W @ 3.5kHz Occupied Bandwidth
20W @ 10kHz Occupied Bandwidth

Certainly, this would have less spectrum impact than the kilowatt AM
phone signal that everyone knows and loves so much.

Bonnie Crystal KQ6XA










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Re: [digitalradio] Re: Wider Bandwidths and Frequency Choices Needed in Future

2006-10-16 Thread Danny Douglas
Last weekend, or was it the one before, during a RTTY contest, I heard them
as low as 14.055 , and smack dab inside the PSK portion around 14.060
upward.  When there are contests every other weekend of one kind or the
other, that doesnt leave many free weekends for those who still have jobs
during the week.


Danny Douglas N7DC
ex WN5QMX ET2US WA5UKR ET3USA
SV0WPP VS6DD N7DC/YV5 G5CTB all
DX 2-6 years each.
moderator  [EMAIL PROTECTED]
- Original Message - 
From: John Becker [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Monday, October 16, 2006 11:00 AM
Subject: Re: [digitalradio] Re: Wider Bandwidths and Frequency Choices
Needed in Future


 At 10:05 PM 10/15/2006, you wrote:
 I know some have asked for chunks that way, but at the same time for
chunks
 with larger signal bandwidth.  What I am concerned about is some 3 kc
signal
 getting on top of us when we are using cw or psk or some other narrower
 signal, and wiping us out.  Already happens with RTTY , contesia, etc.

 It has been a very long time since I have heard a RTTY signal near .070
 on any band. That is other then contest weekends.

 John














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discussion)


 Yahoo! Groups Links






 -- 
 No virus found in this incoming message.
 Checked by AVG Free Edition.
 Version: 7.1.408 / Virus Database: 268.13.4/476 - Release Date: 10/14/2006





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Re: [digitalradio] Many FCC Errors: Voice/Phone/Digi 3600-3700kHz Re: What is mode?

2006-10-16 Thread KV9U
It may be that the FCC is preparing hams for voice meaning any human 
voice equivalent including digital or analog. My view is that some modes 
don't play very well together, but when it comes to wide band digital 
modes, we are now at the point that all kinds of content can be inside a 
digital transmission and you would have no way to determine the content 
by ear, only by machine decoding.

It is possible that the FCC might drop all automatic operation on 80 
meters. Currently, that is what we have with the current RO. My strong 
preference would be to have a small area just above the non-phone areas 
for digital wide band modes and automatic/semi automatic modes but that 
is probably impossible now.

What we really have is a significant loss of data frequencies, the 
complete opposite of what some of us wanted to see happen and expected 
to happen.

As far as automatic modes go, they always need to be carefully 
segregated from human modes, unless they have real time busy channel 
detection. That should be written into the rules now that it is 
technically possible to do this.

Luckily, the damage has been done on a band that is mostly used for 
shorter range transmission and is less often used for inter-region 
traffic. Imagine if this had been done on 20 meters!

At least many of us can agree that this RO is flawed and has created 
some serious errors and conflicts. Somehow, the engineering people 
dropped the ball and did not explain to the commissioners the 
interrelated effects some of these decisions would have. You can not 
expect the commissioners themselves to be all that aware of the 
technical aspects as they have to look at this more as a political 
decision. But they still need to insure that the decisions are sound 
policy. (By the way, when I say political decision, I do not necessarily 
imply that means something bad).

73,

Rick, KV9U


expeditionradio wrote:

Hi Rick and others,

I noticed something peculiar about this recent FCC RO: they are
talking about Voice instead of Phone. Previously, the only
definition for subbands was phone. The only ham band having a
Voice rule that I know of is the 5MHz channels. The rest of the
bands are Phone. In particular, the 5MHz Voice rule has the effect
of keeping us from using selective calling there :( 

Isn't it getting very clear that the content of our transmissions
should no longer be a method of defining them? Isn't this nearing the
point of being absurd? With digital, it is much too difficult to
control the content or for anyone to easily check what the content is. 

ARRL mentioned in their new band chart available on their recent FCC
RO FAQ:
There are some apparent errors in the rules as released. The charts
reflect ARRL's best understanding of what the FCC intended.
Clarifications are being sought and the chart will be amended as
required.
See the band chart at:
http://www.arrl.org/announce/regulatory/wt04-140/faq.html
http://www.arrl.org/announce/regulatory/wt04-140/Hambands3_grayscale.pdf

As for the supposed loss or disappearance of the automatic band at
3620kHz to 3635kHz, I do not believe this FCC error should be allowed
to stand for very long. 
 
Perhaps the FCC's interim correction to the rulemaking will be one of
these options:
1. Simply move the automatic band to 3575kHz-3600kHz, although this is
incompatible with bandplans of other IARU regions.
2. Drop all band restrictions for automatically controlled stations on
80 meters. Some form of automatic control will be working its way into
many of the different systems we use, anyway. So the definition of 
what is automation, and what is operator-helping computer programs is 
becoming as blurred as the antique definition of mode itself.

But there is a bigger problem! Internationally, this area of 80m above
3600kHz is used by all modes at bandwidths of 2.7kHz or more in the
various IARU bandplans, including automatic data stations. In IARU
Region 1, the area below 3600kHz is confined to bandwidth 500Hz. If
USA shoves all digi below 3600kHz, this now presents a step backward
in the larger international compatibility issue that will actually
prevent communication between the various regions for 2.7kHz bandwidth
data or digi stations!  :(

Another possible FCC option exists where they will issue a larger
omnibus bandwidth-based rulemaking that will either make all of this
previous stuff moot or create even more confusion! I don't give this
option a very high probability within the next few months, so we may
be sadly at the mercy of their mistakes for while.

Bonnie KQ6XA

  




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[digitalradio] Attn: K3UK

2006-10-16 Thread Tony
Andy, 

Need the CONVER file I sent you for WinDRM. 

Thanks,

Tony KT2Q




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Re: [digitalradio] Re: Wider Bandwidths and Frequency Choices Needed in Future

2006-10-16 Thread John Becker




What can I say to please you?
But just like RTTY - PSK has no God given right 
to that part of the band either. But like I said below
(in red this time). Seems you missed it before.
At 01:57 PM 10/16/2006, you wrote:
Last weekend, or was it the one
before, during a RTTY contest, I heard them
as low as 14.055 , and smack dab inside the PSK portion around
14.060
upward. When there are contests every other weekend of one kind or
the
other, that doesnt leave many free weekends for those who still have
jobs
during the week.

 It has been a very long time since I have heard a RTTY signal near
.070
 on any band. That is other then contest
weekends.

 John






__._,_.___





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Re: [digitalradio] Re: Wider Bandwidths and Frequency Choices Needed in Future

2006-10-16 Thread Danny Douglas





Well John, I am not asking YOU to please me, just 
the FCC which might be as tuff. HI. 

None of them are a God given right. It just 
seems to me, when there are common internationalareas on a band, on which 
have become used by a particular mode, the FCC would be nuts to suddenly tell us 
we cannot use it for those modes, and every crazier to tell us that we should 
move those operations to some place where the DX isnt going to be, or cannot be 
accdording to their own rules of engagement. They seem to have yet 
to realize we hams are INTERNATIONAL, not local. 

And no - I did not miss it, but I also stated or 
inferred that at least every other weekend it appears we have a big contest of 
some type, that causes inteference to one mode or the other. In fact, we 
have several types of contests EVERY weekend, in which the participants suddenly 
forget or ignore factsthat othermodes exist, and their common 
frequency spectrum for use. I just wish the sponsors of these contests 
would adhere to the common frequencies, and disallow ANY logs which show the 
participants did not do so. It would be quite easy for them to give 
frequency parameters, and stick to their guns. In particular the ARRL, 
QST, ITU, and JARL contests should be so ruled, and that would go a long way in 
decreasing inteference, and complaints of those who are not contesters. 
Contesters are a miniority on the bands, yet certainly put more stations in a 
log on one weekend, than most others do in a month or more. We have to 
have room for everyone, and not completely ignore the non-contester during the 
weekends, when they too are off work and use the bands more often. 



Danny Douglas N7DCex WN5QMX ET2US WA5UKR ET3USASV0WPP VS6DD 
N7DC/YV5 G5CTB allDX 2-6 years each.moderator [EMAIL PROTECTED]

  - Original Message - 
  From: 
  John Becker 
  
  To: digitalradio@yahoogroups.com 
  
  Sent: Monday, October 16, 2006 3:53 
  PM
  Subject: Re: [digitalradio] Re: Wider 
  Bandwidths and Frequency Choices Needed in Future
  What can I say to please you?But just like RTTY - PSK has 
  no God given right to that part of the band either. But like I said 
  below(in red this time). Seems you missed it before.At 01:57 PM 
  10/16/2006, you wrote:
  Last weekend, or was it the one 
before, during a RTTY contest, I heard themas low as 14.055 , and smack 
dab inside the PSK portion around 14.060upward. When there are 
contests every other weekend of one kind or theother, that doesnt leave 
many free weekends for those who still have jobsduring the 
week. It has been a very long time since I have heard a RTTY 
signal near .070 on any band. That is other then 
contest weekends. 
  John 
  
  

  No virus found in this incoming message.Checked by AVG Free 
  Edition.Version: 7.1.408 / Virus Database: 268.13.4/476 - Release Date: 
  10/14/2006
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[digitalradio] Re: Wider Bandwidths and Frequency Choices Needed in Future

2006-10-16 Thread jgorman01
In a sense, the FCC has hoist digital users on their own petard.  With
PSK-31 being so popular, the need for lots of space is questionable. 
Likewise, the competition for space is not as great with the most
narrow modes, i.e. less qrm.  In order to show the FCC more space is
needed, digital folks will need to suffer years of significant qrm,
such as phone on 3900 - 4000 mHz has had.  

I suspect the use of modes with the widest bandwidth possible, whether
needed or not, is the only way to make a significant argument to the
FCC that more space is needed.

It certainly looks like the FCC took the comments that contained so
called studies of usage into account when determining allocations. 
Even though these studies had significant flaws, such as being done
at a sunspot minimum, the FCC obviously accepted them for 80/75 meters.

Jim
WA0LYK


--- In digitalradio@yahoogroups.com, Danny Douglas [EMAIL PROTECTED] wrote:

 Last weekend, or was it the one before, during a RTTY contest, I
heard them
 as low as 14.055 , and smack dab inside the PSK portion around 14.060
 upward.  When there are contests every other weekend of one kind or the
 other, that doesnt leave many free weekends for those who still have
jobs
 during the week.
 
 
 Danny Douglas N7DC
 ex WN5QMX ET2US WA5UKR ET3USA
 SV0WPP VS6DD N7DC/YV5 G5CTB all
 DX 2-6 years each.
 moderator  [EMAIL PROTECTED]
 - Original Message - 
 From: John Becker [EMAIL PROTECTED]
 To: digitalradio@yahoogroups.com
 Sent: Monday, October 16, 2006 11:00 AM
 Subject: Re: [digitalradio] Re: Wider Bandwidths and Frequency Choices
 Needed in Future
 
 
  At 10:05 PM 10/15/2006, you wrote:
  I know some have asked for chunks that way, but at the same time for
 chunks
  with larger signal bandwidth.  What I am concerned about is some 3 kc
 signal
  getting on top of us when we are using cw or psk or some other
narrower
  signal, and wiping us out.  Already happens with RTTY , contesia,
etc.
 
  It has been a very long time since I have heard a RTTY signal near
.070
  on any band. That is other then contest weekends.
 
  John
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  Need a Digital mode QSO? Connect to  Telnet://cluster.dynalias.org
 
  Other areas of interest:
 
  The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/
  DigiPol: http://groups.yahoo.com/group/Digipol  (band plan policy
 discussion)
 
 
  Yahoo! Groups Links
 
 
 
 
 
 
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Need a Digital mode QSO? Connect to  Telnet://cluster.dynalias.org

Other areas of interest:

The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/
DigiPol: http://groups.yahoo.com/group/Digipol  (band plan policy discussion)

 
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