Re: [digitalradio] Re: QRV ALE special group

2009-11-23 Thread Phil Williams
I made an attempt  to call on the 80 meter frequencies, but I need to solve
a nasty little RFI problem with a smoke alarm before going any further :-p.

philw de ka1gmn


On Sun, Nov 22, 2009 at 7:01 PM, Andy obrien k3uka...@gmail.com wrote:



 I have now added 3584 and 3596 US6 to my scan for the evening.

 Andy K3UK


 On Sun, Nov 22, 2009 at 11:51 AM, Andy obrien 
 k3uka...@gmail.comk3ukandy%40gmail.com
 wrote:
  I have modified my ALE station and during daylight hours I will be
  scanning the following channels while in the shack most of the day
  (I'll add 80M later tonight)
 
  7074   USB
  *7102  USB
  *10145.5 USB
  14074 USB
  *14109USB
 
  * denotes standard ALE data channels commonly used by ALE stations
 
  The 14074 and 7074 frequencies are not typically monitored by ALE
  stations but are often used by digital mode enthusiasts  for modes
  other than PSK31 or RTTY.   I am prosing that members of this group
  use 7074 and 14074 using standard ALE and make occasion calls on these
  frequencies in attended mode .
 
  So far thjis morning  I have seen
 
 
  [16:44:12][FRQ 10145500][SND][   ][TWS][WB6MZS
  ][AL0] BER 17 SN 03  (note a decode with weak signals)
  [16:12:01][FRQ 10145500][SND][   ][TWS][KM4BA
  ][AL0] BER 30 SN 06
  [16:11:02][FRQ 07102000][SND][   ][TWS][WD8ARZ
  ][AL0] BER 26 SN 08
 
  and surprise visitor to my station
 
  [16:44:48][FRQ 14109000][LINKED  ][KA1GMN ]
  [16:50:28][FRQ 14109000][TO ][K3UK   ][TIS][KA1GMN
  ][AL0] BER 28 SN 06
 
  Who found me while I was scanning at one channel every two seconds,
  well done Phil.  You disappeared though.
 
 
 
 
   I will monitor all of the listed frequencies and welcome calls.  Will
  switch to other modes as needed after the initial link.
 
  Andy K3UK
  Fredonia, NY.
 

  



Re: [digitalradio] Which radio ?

2009-11-23 Thread Ted Wager
Andy obrien wrote:


 I have not used the rigs u mentioned and am not sure what their cost 
 is..  but I would also mention the TS2000 and Kenwood  TS480 as radios 
 you might want to look at .  The Icom 7000 may also be worth a look too. 

 Welcome back to the hobby!

 Where is High Peak ?  You're not on top of Ben Nevis, I hope.

 Andy K3UK


 On Sat, Nov 21, 2009 at 6:02 AM, Ted Wager t...@trufflesdad.plus.com 
 mailto:t...@trufflesdad.plus.com wrote:

  

 I am returning to amateur radio after 15 years qrt and looking for
 a new
 radio
 Main interests are listening hf and digi modes, principally psk..My
 choice is down to either the yaesu ft450 or the Yaesu ft-857d.Any
 comments on my choice welcome and should I look at any other radios ?



  
 http://groups.yahoo.com/group/digitalradio;_ylc=X3oDMTJkZXZqbjZpBF9TAzk3NDc2NTkwBGdycElkAzE4NzExODMEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwNmdHIEc2xrA2hwZgRzdGltZQMxMjU4ODAyMTc1
  
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 mailto:digitalradio-unsubscr...@yahoogroups.com?subject=unsubscribe

 
Thanks to all who  replied to my query and for Andy
High Peak is North Derbyshire where it usually rains :-(

-- 
Regards
 Ted Wager
  High Peak UK





Suggested frequencies for calling CQ with experimental digital modes =
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[digitalradio] Re: Getting serious about ALE for non-encomm digital hamming

2009-11-23 Thread aa777888athotmaildotcom


--- In digitalradio@yahoogroups.com, Patrick Lindecker f6...@... wrote:

 Hello,
 
  Once an effective, simple and robust SELCAL standard is developed (again 
  IMHO it should be a logical extension of the existing RSID and Call ID 
  standards) it could eventually be parlayed into a more modern and 
  effective variant of ALE. By using
 RR for the nice SELCAL idea. I'm not sure it would be very easy if you need 
 a symetrical acknowledgment. If it is only a one way transmission without 
 any double acknowledgment it is much more easy. RS ID and CALL ID are public 
 sources. So...

One way would do it. To use an analogy, you ring the phone and the operator 
decides if he wants to pick up. With RSID, Call ID and SELCAL combined the 
called station would know he's being called, who's calling and on what mode and 
freq. Just like RSID, allow the alert to be ignored or allow the alert to cause 
the station to be put on the right mode and freq. Just like RSID the operator 
answers manually.

By the way, is there currently a mechanism for monitoring the 3KHz passband for 
a certain Call ID and only alarming on that?




Re: [digitalradio] Which radio ?

2009-11-23 Thread Dave Ackrill
Ted Wager wrote:

 Thanks to all who  replied to my query and for Andy
 High Peak is North Derbyshire where it usually rains :-(
 

I often have to drive through the High Peaks to get across the Pennines 
from my home in Bolsover.  Through places with names like 
Chappel-en-le-Frith and Dove Holes.

Beautiful at some times of the year, however driving rain and fog on the 
tops are not so much fun...

Dave (G0DJA)




Suggested frequencies for calling CQ with experimental digital modes =
3584,10147, 14074 USB on your dial plus 1000Hz on waterfall.

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Re: [digitalradio] Which radio ?

2009-11-23 Thread Ted Wager
Dave Ackrill wrote:
 Ted Wager wrote:

   
 Thanks to all who  replied to my query and for Andy
 High Peak is North Derbyshire where it usually rains :-(

 

 I often have to drive through the High Peaks to get across the Pennines 
 from my home in Bolsover.  Through places with names like 
 Chappel-en-le-Frith and Dove Holes.

 Beautiful at some times of the year, however driving rain and fog on the 
 tops are not so much fun...

 Dave (G0DJA)



   
Ok Dave
Dove Holes is a terrible place..Very bleak...I live in New Mills  off 
the a6..We are at the 800ft level so quite unlikely to flood..Hopefully..

-- 
Regards
 Ted Wager
  High Peak UK





Suggested frequencies for calling CQ with experimental digital modes =
3584,10147, 14074 USB on your dial plus 1000Hz on waterfall.

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Re: [digitalradio] 13 pin DIN plug switch box?

2009-11-23 Thread Gary A. Hinton
Hello Tony,

Your not going to find one of those type of boxes. They just don't exist.
You can build one easily. Go to your local thrift shop and pick up a RS232
switch box use for switching printers used in the past. It contains the 
switch
that you need and the box.also. Buy a pair of 13 pin Din receptacles, plug,
wire and some solder. Can't be much easier than that.

73 Gary WB6BNE

 
  - Original Message - 
  From: Tony 
  To: digitalradio@yahoogroups.com 
  Sent: Sunday, November 22, 2009 8:45 PM
  Subject: [digitalradio] 13 pin DIN plug switch box?




  All, 

  Does anyone know where I can find a 13 pin DIN plug switch box? I use the 
ACC2 socket on my Kenwood TS2000 to run sound card modes and connect my Kam 
Plus TNC. A switch would come in handy.

  Tony -K2MO 

  

[digitalradio] Disinformation about ALE by N5PVL Re: Getting serious about ALE / LID factor

2009-11-23 Thread expeditionradio
Charles, 

Your constant efforts to spread disinformation about ALE use in ham radio shows 
how little you know about how hams are using ALE.

If you are really concerned about lids on HF, start with the #1 primary source 
of QRM: contesters.

Bonnie VR2/KQ6XA

--- In digitalradio@yahoogroups.com, Charles Brabham n5...@... wrote: 
 The system was not designed for use on amateur 
 radio's shared spectrum, and that is why it's use 
 is not appropriate there.  



Re: [digitalradio] Disinformation about ALE by N5PVL Re: Getting serious about ALE / LID factor

2009-11-23 Thread Charles Brabham
Bonnie:

I have not spread any disinformation about ALE anywhere. 

Take your personal attacks elsewhere. You bore me.


73 DE Charles Brabham, N5PVL

Prefer to use radio for your amateur radio communications? - Stop by at 
HamRadioNet.Org !

http://www.hamradionet.org


  - Original Message - 
  From: expeditionradio 
  To: digitalradio@yahoogroups.com 
  Sent: Monday, November 23, 2009 9:23 AM
  Subject: [digitalradio] Disinformation about ALE by N5PVL Re: Getting serious 
about ALE / LID factor



  Charles, 

  Your constant efforts to spread disinformation about ALE use in ham radio 
shows how little you know about how hams are using ALE.

  If you are really concerned about lids on HF, start with the #1 primary 
source of QRM: contesters.

  Bonnie VR2/KQ6XA

  --- In digitalradio@yahoogroups.com, Charles Brabham n5...@... wrote: 
   The system was not designed for use on amateur 
   radio's shared spectrum, and that is why it's use 
   is not appropriate there. 



  

Re: [digitalradio] Disinformation about ALE by N5PVL Re: Getting serious about ALE / LID factor

2009-11-23 Thread Rick Karlquist
   Charles,

   Your constant efforts to spread disinformation about ALE use in ham
 radio shows how little you know about how hams are using ALE.

   If you are really concerned about lids on HF, start with the #1 primary
 source of QRM: contesters.

   Bonnie VR2/KQ6XA


That reminds me.  During the CW Sweepstakes 2 weeks ago, I was trying
to operate on ~7030 and bursts of RTTY-sounding stuff kept coming
on the frequency for 5 or 10 seconds every once in a while.
Is that ALE?  Why am I as a contester QRM and that stuff is not QRM?

Rick N6RK



Re: [digitalradio] Disinformation about ALE by N5PVL Re: Getting serious about ALE / LID factor

2009-11-23 Thread John Becker, WØJAB
OK all put a stop to this.

John, W0JAB
moderator



Re: [digitalradio] 13 pin DIN plug switch box?

2009-11-23 Thread James French
I would go with a db-25 printer switch that way you have access to all pins
even if they are not all used.

If you can become a member of one of your local Freecycle mail groups, you
post that your looking for a couple. I did that a month ago and was given
two units to use. Plans are for them to be used to switch between radios so
as to use one microphone for all and save the other microphones as spares.

James W8ISS
=
 On Monday 23 November 2009 11:06:03 Gary A. Hinton wrote:
 Hello Tony,
 
 Your not going to find one of those type of boxes. They just don't exist.
 You can build one easily. Go to your local thrift shop and pick up a RS232
 switch box use for switching printers used in the past. It contains the 
 switch
 that you need and the box.also. Buy a pair of 13 pin Din receptacles, 
 plug,
 wire and some solder. Can't be much easier than that.
 
 73 Gary WB6BNE
 
  
   - Original Message - 
   From: Tony 
   To: digitalradio@yahoogroups.com 
   Sent: Sunday, November 22, 2009 8:45 PM
   Subject: [digitalradio] 13 pin DIN plug switch box?
 
 
 
 
   All, 
 
   Does anyone know where I can find a 13 pin DIN plug switch box? I use the 
 ACC2 socket on my Kenwood TS2000 to run sound card modes and connect my Kam 
 Plus TNC. A switch would come in handy.
 
   Tony -K2MO 
 
   




Suggested frequencies for calling CQ with experimental digital modes =
3584,10147, 14074 USB on your dial plus 1000Hz on waterfall.

Announce your digital presence via our Interactive Sked Pages at
http://www.obriensweb.com/sked
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Re: [digitalradio] Re: Getting serious about ALE for non-encomm digital hamming

2009-11-23 Thread Patrick Lindecker
Hello,

 One way would do it. To use an analogy, you ring the phone and the 
 operator decides if he wants to pick up. With RSID, Call
OK I see the analogy.

 By the way, is there currently a mechanism for monitoring the 3KHz 
 passband for a certain Call ID and only alarming on that?
Yes there are several options (monitoring, automatic spot...). The covered 
bandwidth can be 2.5, 3.3, 4.3 or 44 KHz on a SdR.
I have modified a bit the Call ID source to integrate a small message ID 
(possibility to send small messages (9 characters max)  readable on the 
waterfall).

73
Patrick

- Original Message - 
From: aa777888athotmaildotcom aa777...@hotmail.com
To: digitalradio@yahoogroups.com
Sent: Monday, November 23, 2009 12:51 PM
Subject: [digitalradio] Re: Getting serious about ALE for non-encomm digital 
hamming




 --- In digitalradio@yahoogroups.com, Patrick Lindecker f6...@... 
 wrote:

 Hello,

  Once an effective, simple and robust SELCAL standard is developed 
  (again
  IMHO it should be a logical extension of the existing RSID and Call ID
  standards) it could eventually be parlayed into a more modern and
  effective variant of ALE. By using
 RR for the nice SELCAL idea. I'm not sure it would be very easy if you 
 need
 a symetrical acknowledgment. If it is only a one way transmission without
 any double acknowledgment it is much more easy. RS ID and CALL ID are 
 public
 sources. So...

 One way would do it. To use an analogy, you ring the phone and the 
 operator decides if he wants to pick up. With RSID, Call ID and SELCAL 
 combined the called station would know he's being called, who's calling 
 and on what mode and freq. Just like RSID, allow the alert to be ignored 
 or allow the alert to cause the station to be put on the right mode and 
 freq. Just like RSID the operator answers manually.

 By the way, is there currently a mechanism for monitoring the 3KHz 
 passband for a certain Call ID and only alarming on that?




 

 Suggested frequencies for calling CQ with experimental digital modes =
 3584,10147, 14074 USB on your dial plus 1000Hz on waterfall.

 Announce your digital presence via our Interactive Sked Pages at
 http://www.obriensweb.com/sked
 Yahoo! Groups Links



 



Re: [digitalradio] Disinformation about ALE by N5PVL Re: Getting serious about ALE / LID factor

2009-11-23 Thread DANNY DOUGLAS
Bonnie, sitting on the side, I see both sides of this.  You, on one hand, 
always appear to be pushing expansion of new modes (which is good in some 
respect - that's what makes for advancements in science), but on the other 
hand, you appear to always want to push other users away, with broader bands, 
higher speeds, and be dammed with any mode you do not want to use.  I haven't 
been reading much of your output this past year, because I truly got tired of 
seeing that, particularly when you seem to just ignore the expense of present 
users.  I would like to remind you that many of us have, over and over, been 
the victim of some digital mode popping up on a busy frequency, and driving us 
off.  You could make a great contribution to acceptance of these new modes, if 
you would just step up and agree that it happens, and that the contributors 
(program writers) should write in for busy frequency checking of the bands, 
before transmitting their own  signal.  We already require this of 
CW/SSB/RTTY/PSK etc. users.  Why should a user of these higher-newer modes not 
be held to the same requirements?  With your knowledge and experience you can 
make a great contribution here, but really need to help cut back on the push to 
allow interference to others, for advancement to techonology.  Please give 
this some thought.  And by the way, contesters are a very main reason for 
advancement of technology in antennas and hardware - and they have been here a 
long time.  ( I agree, they too should be limited to set sub-bands within the 
spectrum, but that is unlikely to happen because the sponsors are quite 
unwilling to accept the facts of their interference to other users).  
Danny Douglas
N7DC
ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB
All 2 years or more (except Novice). Short stints at:  DA/PA/SU/HZ/7X/DU
CR9/7Y/KH7/5A/GW/GM/F
Pls QSL direct, buro, or LOTW preferred,
I Do not use, but as a courtesy do upload to eQSL for those who do.  
Moderator
DXandTALK
http://groups.yahoo.com/group/DXandTalk
Digital_modes
http://groups.yahoo.com/group/digital_modes/?yguid=341090159

  - Original Message - 
  From: expeditionradio 
  To: digitalradio@yahoogroups.com 
  Sent: Monday, November 23, 2009 10:23 AM
  Subject: [digitalradio] Disinformation about ALE by N5PVL Re: Getting serious 
about ALE / LID factor



  Charles, 

  Your constant efforts to spread disinformation about ALE use in ham radio 
shows how little you know about how hams are using ALE.

  If you are really concerned about lids on HF, start with the #1 primary 
source of QRM: contesters.

  Bonnie VR2/KQ6XA

  --- In digitalradio@yahoogroups.com, Charles Brabham n5...@... wrote: 
   The system was not designed for use on amateur 
   radio's shared spectrum, and that is why it's use 
   is not appropriate there. 



  

Re: [digitalradio] 13 pin DIN plug switch box?

2009-11-23 Thread Rick Karlquist
Gary A. Hinton wrote:
 Hello Tony,

 Your not going to find one of those type of boxes. They just don't
 exist.
 You can build one easily. Go to your local thrift shop and pick up a
 RS232
 switch box use for switching printers used in the past. It contains
 the switch
 that you need and the box.also. Buy a pair of 13 pin Din receptacles,
 plug,
 wire and some solder. Can't be much easier than that.

 73 Gary WB6BNE


A viable approach, however, I have decided for my station to make
everything controllable from the computer.  So instead of mechanical
switches, I always use relays.  I also convert all connectors to
D-subminiature or 3 conductor 3.5 mm stereo jacks.  So what I would do is
buy a cable with a 13 pin DIN plug on it and wire a DB-25 to the other
end.  The box would have a DB-25 and two DE-9's.  The DE-9's would
connect to the ancillary equipment (assuming that no individual piece of
equipment needs more than 9 of the 13 pins).  The control for the
relay bank would be via a 3 conductor 3.5 mm jack.  I can get cheap
3.5 mm patch cables and D-sub cables at the swap meet.

Rick N6RK



Re: [digitalradio] Disinformation about ALE by N5PVL Re: Getting serious about ALE / LID factor

2009-11-23 Thread Dave Ackrill
DANNY DOUGLAS wrote:
 Bonnie, sitting on the side, I see both sides of this.  You, on one hand, 
 always appear to be pushing expansion of new modes
   - Original Message - 
   From: expeditionradio 

   If you are really concerned about lids on HF, start with the #1 primary 
 source of QRM: contesters.

I'm no fan of the way in which many contest stations seem to use, and 
abuse, the band plans, but neither am I a fan of digital modes that, 
maybe unintentionally at times, trample upon other legitimate users of 
the bands either...

Unfortunately, legislating against either abuse is both unlikely to work 
and probably impossible to implement.

Personally, I would like the organisers of the various contests to 
enforce their own rules against persistent offenders.  However, 
experience over many years suggests that they either will not, or dare 
not, do this, which begs the question why have the rules?

I would prefer that the DX community did not trample on top of people at 
times, and listen before they transmitted and I would like the Band 
Police to not transmit over the top of what they think should, or should 
not, be done on a frequency.

I would also like the ALE and digital community to recognise that they 
share the bands with everyone else and are not immune from the 'listen 
before use' rule either.

However, these are just my 'would like to have' and are obviously not 
shared by the majority, as they do not happen.

Dave (G0DJA)


[digitalradio] 7030 QRM

2009-11-23 Thread Andy obrien
Rick, not likely .  ALE mostly uses

 7040500
 7065000
 7099500
 7102000
 7110500
 7185500
 7296000

With 7102 in North America as the one with digital data signals.

Andy K3UK


On Mon, Nov 23, 2009 at 2:15 PM, Rick Karlquist rich...@karlquist.comwrote:



  Charles,
 
  Your constant efforts to spread disinformation about ALE use in ham
  radio shows how little you know about how hams are using ALE.
 
  If you are really concerned about lids on HF, start with the #1 primary
  source of QRM: contesters.
 
  Bonnie VR2/KQ6XA
 

 That reminds me. During the CW Sweepstakes 2 weeks ago, I was trying
 to operate on ~7030 and bursts of RTTY-sounding stuff kept coming
 on the frequency for 5 or 10 seconds every once in a while.
 Is that ALE? Why am I as a contester QRM and that stuff is not QRM?

 Rick N6RK

  



[digitalradio] Moderator comments : Listen-Don't listen

2009-11-23 Thread Andy obrien
Before we go down the path of debating listen first or not.  I will
remind folks that most of the argument has been stated before.  Aside
from the legalities of the issue, there are camps that strongly
advocate that every hams should also listen first and not transmit if
the frequency is busy, and those that feel some modes have such short
initial identifying bursts that listening first is not necessary , and
perhaps antiquated.  I think we should acknowledge both viewpoints,
without dragging the issue on and on.  What I do feel needs pointing
out is that if you take the first position, that one should always
check a frequency and inquire if it is free, logical would dictate
that this applies to all aspects of hams radio including contests.  A
contester that calls CQ Contest without QRL is as guilty as an ALE
or Packet station.  Since I am a contester, I might argue that
although the frequency is crowed, I think my signal can fit next to
others without undue QRM.  That might not be that much different than
a Propnet station that fires up 32 hz away from me.  I may think it
annoying but they might feel I should be able to operate with a close
neighbour.

Feel free to share your opinion on the matter but do so with respect
for other opinions.  In the scheme of things , whether one believes in
QRL first or not, does not make the person with contrary views in to
a evil dastardly person.  We just differ.

Andy K3UK


Re: [digitalradio] 7030 QRM

2009-11-23 Thread Rick Karlquist
Andy obrien wrote:
 Rick, not likely .  ALE mostly uses

  7040500
  7065000
  7099500
  7102000
  7110500
  7185500
  7296000

Actually, now that I think about it, I was trying to use
7040.

Rick N6RK



Re: [digitalradio] Disinformation about ALE by N5PVL Re: Getting serious about ALE / LID factor

2009-11-23 Thread Andy obrien
Good point Skip, in this modern era with cabrillo files, it should be easy
to do.



On Mon, Nov 23, 2009 at 6:37 PM, KH6TY kh...@comcast.net wrote:



 There are VHF contests that are limited to only certain bands out of all
 available. There are HF contests for just phone, or CW or RTTY, so it should
 be no problem for HF contest sponsors to only allow credit for Q's made
 between certain frequencies on each band. That would be on the honor system,
 or might require logging a certain frequency instead of just a band, but
 maybe that would be a way to reserve some space for other activities (IF
 there could be agreement on what space to reserve!:-) ).

 Just a thought...

 Skip KH6TY





Re: [digitalradio] 7030 QRM

2009-11-23 Thread Andy obrien
I'm still guessing it was not ALE.


On Mon, Nov 23, 2009 at 6:44 PM, Rick Karlquist rich...@karlquist.comwrote:



 Andy obrien wrote:
  Rick, not likely . ALE mostly uses
 
  7040500
  7065000
  7099500
  7102000
  7110500
  7185500
  7296000

 Actually, now that I think about it, I was trying to use
 7040.

 Rick N6RK

  



Re: [digitalradio] Disinformation about ALE by N5PVL Re: Getting serious about ALE / LID factor

2009-11-23 Thread Kurt Tuttle
Wow another rant. I don't care for contesting, but they are not the only QRM on 
the band. ALE can be, Winlids for sure but wait lets bring up cw and ssb, and 
of course AM, this is even during a contest. QRM is a way of life, get over it.
 
KT
 
 


--- On Mon, 11/23/09, expeditionradio expeditionra...@yahoo.com wrote:


From: expeditionradio expeditionra...@yahoo.com
Subject: [digitalradio] Disinformation about ALE by N5PVL Re: Getting serious 
about ALE / LID factor
To: digitalradio@yahoogroups.com
Date: Monday, November 23, 2009, 10:23 AM


  



Charles, 

Your constant efforts to spread disinformation about ALE use in ham radio shows 
how little you know about how hams are using ALE.

If you are really concerned about lids on HF, start with the #1 primary source 
of QRM: contesters.

Bonnie VR2/KQ6XA

--- In digitalradio@ yahoogroups. com, Charles Brabham n5...@... wrote: 
 The system was not designed for use on amateur 
 radio's shared spectrum, and that is why it's use 
 is not appropriate there. 









  

Re: [digitalradio] 13 pin DIN plug switch box?

2009-11-23 Thread Randy Hall
I built a box with lots on RCA jacks and got the 13P DIN breakout cable from
MFJ. Add a couple of switches and be all set. Using the MFJ cable saves from
having to solder pins on the high density 13 P DIN connector.

LDG also sells a breakout box.

Randy
K7AGE


Re: [digitalradio] Moderator comments : Listen-Don't listen

2009-11-23 Thread Andy obrien
On Mon, Nov 23, 2009 at 6:57 PM, KH6TY kh...@comcast.net wrote:



 Andy,

 I must respectfully disagree. A contester who calls CQ Contest is usually 
 doing it on a frequency that is clear at the moment (at least at his 
 location). If you think you can fit between signals, you have already 
 determined that space is clear, have you not?

 All this is quite different from an automated Propnet station, or ALE 
 sounding, that has made no determination at all.

After consideration, I acknowledge your point...it is different.

Andy K3UK


Re: [digitalradio] Moderator comments : Listen-Don't listen

2009-11-23 Thread Andy obrien
 Unattended stations make no attempt to share at all, but assume the
frequency is theirs whenever they want it, and actually they never
know if it were clear or not, as they can just automatically transmit
again until they are successful. This undermines the principle of
shared frequencies, which is what Charles was trying to point out.

 Skip KH6TY




but not ALE all stations (I can't speak for Propnet) are unattended..
I was in my shack at each sounding yesterday.  Also, my ALE software
pauses a scan and suddenly says listening for a few seconds before
it transmits.  It rarely prevents a transmit if the frequency is busy,
 but my brain causes a quick glance at the waterfall  when I hear a
scan stop (my rig makes a noise)  and I can simply stop a transmit if
the frequency is busy.  The interesting thing is that the ALE data
frequencies  rarely busy .   As I type this there is a Pactor station
squawking away about 1500 Hz away but I went HOURS yesterday without
having to stop an ALE transmit .

Andy  K3UK


Re: [digitalradio] 13 pin DIN plug switch box?

2009-11-23 Thread Andy obrien
I want one too!

On Sun, Nov 22, 2009 at 10:45 PM, Tony d...@optonline.net wrote:



 All,

 Does anyone know where I can find a 13 pin DIN plug switch box? I use the
 ACC2 socket on my Kenwood TS2000 to run sound card modes and connect my Kam
 Plus TNC. A switch would come in handy.

 Tony -K2MO
  
   Rep d...@optonline.net?subject=13+pin+din+plug+switch+box?



Re: [digitalradio] Moderator comments : Listen-Don't listen

2009-11-23 Thread Rick Karlquist
Andy obrien wrote:
 Before we go down the path of debating listen first or not.  I will
 remind folks that most of the argument has been stated before.  Aside
 from the legalities of the issue, there are camps that strongly
 advocate that every hams should also listen first and not transmit if
 the frequency is busy, and those that feel some modes have such short
 initial identifying bursts that listening first is not necessary , and
 perhaps antiquated.  I think we should acknowledge both viewpoints,

I would note that the noises on 7040 drove me off that frequency,
and I suspect drove everyone else off that frequency, since the
whole band was wall to wall signals except for that frequency.
Any RF source that can hold a frequency like 7040 during a major contest
cannot be considered inconsequential or de minimus as the lawyers
like to say.

Rick N6RK



Re: [digitalradio] 7030 QRM

2009-11-23 Thread Dave Ackrill
OK,

I give up.

You don't seem able to make room for everyone.

So, I'll sign out of all the WSPR and WSJT modes and will not recognise 
any of your modes.
In the round, you may decide that I'm not worth worrying about.

However, I will tell anyone who cares to ask about why I decided to tell 
people why WSPR and WSJT were not modes that seemed to be ones that I use...





Suggested frequencies for calling CQ with experimental digital modes =
3584,10147, 14074 USB on your dial plus 1000Hz on waterfall.

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[digitalradio] Re: Moderator comments : Listen-Don't listen

2009-11-23 Thread expeditionradio
 Skip KH6TY wrote:
 A contester who calls CQ Contest is usually doing 
 it on a frequency that is clear at the moment 

Hi Skip,

What planet do you live on?  :)
I want to live there in that mythical land, 
where all contesters get to transmit on 
clear frequencies. 

Don't get me wrong, I am not anti contest, in 
fact, far from it. I was once a very active 
and avid contester. 

From experience, I can say without any doubt that 
successful contesting primarily boils down to 
who can QRM better and talk over top of all the 
other stations better. That is why the most successful 
contesters use high-powered amplifiers and large 
antenna arrays. 

The same goes for DX pileups. Basically, a pileup 
is simply a contest where the number of possible contacts 
is 1 and the number of possible multipliers is 1. 

Everyone who enters the pileup contest is trying to 
out-QRM the other entrants, or in FCC parlance... 
to harmfully interfere with, the other contestants 
in the pileup contest. They are trying to keep the other 
stations from working the target station, in favor of 
themselves. Louder, stronger, QRMer.

Anyone who has listened or participated in 
contests knows that there will be QRM generated 
by the contest, and QRM/interference is 
just all part of the game.

In fact, when you think about it, really... living 
with QRM and interference is part of life on HF. 

Bonnie VR2/KQ6XA



[digitalradio] Re: HF International Automatic Subbands

2009-11-23 Thread expeditionradio
 I would also like the ALE and digital community to 
 recognise that they share the bands with everyone else  
 Dave (G0DJA) 

Hi Dave,

While I can't speak for the whole digital community, 
I can probably speak with some authority for 
the ALE community... 

ALE operators have been sharing the ham bands 
for many many years without harmful interference. 
This is primarily due to the way that ALE has been 
adapted to amateur radio by hams, a protocol adaption 
known as ham-friendly ALE. 

99% of ALE operation is in organised emcomm networks 
and 99% of the organised networks are operating in the 
internationally recogised HF automatic sub-bands, 
where automatic modes have been in use for many years. 

73 Bonnie VR2/KQ6XA
 



[digitalradio] Re: Moderator comments : Listen-Don't listen

2009-11-23 Thread aa6yq
Bonnie your argument is some contesters and DXers QRM ongoing QSOs, so 
therefore its ok for ALL unattended stations to QRM ongoing QSOs. This is poor 
engineering; when we automate things, the idea is to automate good practice, 
not bad practice. You don't see anyone designing autopilots that can become 
disoriented, do you?

And by the way, most DXers in a pileup do not seek to QRM each other, as that 
guarantees they won't be clearly heard by the DX -- even when using a powerful 
station. The idea is to seek clear spots in the pileup into which to drop your 
call so you can more likely be heard by the DX. This is particularly true in 
digital mode pileups.

73,

Dave, AA6YQ

--- In digitalradio@yahoogroups.com, expeditionradio expeditionra...@... 
wrote:

  Skip KH6TY wrote:
  A contester who calls CQ Contest is usually doing 
  it on a frequency that is clear at the moment 
 
 Hi Skip,
 
 What planet do you live on?  :)
 I want to live there in that mythical land, 
 where all contesters get to transmit on 
 clear frequencies. 
 
 Don't get me wrong, I am not anti contest, in 
 fact, far from it. I was once a very active 
 and avid contester. 
 
 From experience, I can say without any doubt that 
 successful contesting primarily boils down to 
 who can QRM better and talk over top of all the 
 other stations better. That is why the most successful 
 contesters use high-powered amplifiers and large 
 antenna arrays. 
 
 The same goes for DX pileups. Basically, a pileup 
 is simply a contest where the number of possible contacts 
 is 1 and the number of possible multipliers is 1. 
 
 Everyone who enters the pileup contest is trying to 
 out-QRM the other entrants, or in FCC parlance... 
 to harmfully interfere with, the other contestants 
 in the pileup contest. They are trying to keep the other 
 stations from working the target station, in favor of 
 themselves. Louder, stronger, QRMer.
 
 Anyone who has listened or participated in 
 contests knows that there will be QRM generated 
 by the contest, and QRM/interference is 
 just all part of the game.
 
 In fact, when you think about it, really... living 
 with QRM and interference is part of life on HF. 
 
 Bonnie VR2/KQ6XA





Re: [digitalradio] 13 pin DIN plug switch box?

2009-11-23 Thread Don Rand
Look at the MFJ-1272B/M TNC Microphone Switch.  I have no idea if it is what 
you are looking for, or if it would work, but

Don

KA5DON

[digitalradio] Re: HF International Automatic Subbands

2009-11-23 Thread aa6yq
During an emergency, no one has a problem ceding frequencies to emcomm 
stations; its like heading for the shoulder when you hear an ambulance while 
driving.

When there's no emergency underway, however, the automatic bands are 
available to all amateur stations, not just unattended stations. Its no more 
acceptable for unattended stations to QRM ongoing QSOs in the automatic bands 
than it is to QRM them anywhere else within the amateur spectrum.

   73,

   Dave, AA6YQ

--- In digitalradio@yahoogroups.com, expeditionradio expeditionra...@... 
wrote:

  I would also like the ALE and digital community to 
  recognise that they share the bands with everyone else  
  Dave (G0DJA) 
 
 Hi Dave,
 
 While I can't speak for the whole digital community, 
 I can probably speak with some authority for 
 the ALE community... 
 
 ALE operators have been sharing the ham bands 
 for many many years without harmful interference. 
 This is primarily due to the way that ALE has been 
 adapted to amateur radio by hams, a protocol adaption 
 known as ham-friendly ALE. 
 
 99% of ALE operation is in organised emcomm networks 
 and 99% of the organised networks are operating in the 
 internationally recogised HF automatic sub-bands, 
 where automatic modes have been in use for many years. 
 
 73 Bonnie VR2/KQ6XA





Re: [digitalradio] Re: HF International Automatic Subbands

2009-11-23 Thread David Struebel
Bonnie,

Just a point... I don't believe the HF automatic sub bands are internationally 
recognized.

To my knowledge it is only the FCC in the US that has set up these automatic 
control sub bands.

73 Dave WB2FTX
  - Original Message - 
  From: expeditionradio 
  To: digitalradio@yahoogroups.com 
  Sent: Monday, November 23, 2009 7:21 PM
  Subject: [digitalradio] Re: HF International Automatic Subbands



   I would also like the ALE and digital community to 
   recognise that they share the bands with everyone else 
   Dave (G0DJA) 

  Hi Dave,

  While I can't speak for the whole digital community, 
  I can probably speak with some authority for 
  the ALE community... 

  ALE operators have been sharing the ham bands 
  for many many years without harmful interference. 
  This is primarily due to the way that ALE has been 
  adapted to amateur radio by hams, a protocol adaption 
  known as ham-friendly ALE. 

  99% of ALE operation is in organised emcomm networks 
  and 99% of the organised networks are operating in the 
  internationally recogised HF automatic sub-bands, 
  where automatic modes have been in use for many years. 

  73 Bonnie VR2/KQ6XA




  


--



  No virus found in this incoming message.
  Checked by AVG - www.avg.com 
  Version: 9.0.709 / Virus Database: 270.14.79/2522 - Release Date: 11/23/09 
14:45:00


Re: [digitalradio] Re: HF International Automatic Subbands

2009-11-23 Thread Andy obrien
 When there's no emergency underway, however, the automatic bands are 
 available to all amateur stations, not just unattended stations. Its no more 
 acceptable for unattended stations to QRM ongoing QSOs in the automatic 
 bands than it is to QRM them anywhere else within the amateur spectrum.

 73,

 Dave, AA6YQ



Excuse me for being so dumb, Dave...  what is the purpose for allowing
unattended stations in a specific part of a band if they have to
listen to make sure a frequency is clear?  I don't get it.  Also, am
I wrong in thinking  that unattended versus automatic means the
same thing?


Hmm, in thinking back to the days that all this may have started,
packet days,   I remember that my TNC would not transmit a packet if
the TNC detected another station, it would wait a second or two.  is
this the difference , that unattended with busy detect is fine ?

Andy K3UK


Re: [digitalradio] Re: HF International Automatic Subbands

2009-11-23 Thread Charles Brabham
I agree 100% - and I operate an automated Packet station in one of the 
sub-bands. 

Fairly often, on weekends I see a good deal of RTTY contest activity there, and 
the RTTY guys have proven to be good nieghbors.

I use MixW as an HF Packet modem, which allows me to open up a second or third 
window in RTTY mode and read the mail during the contests. Seeing how much fun 
those guys have, I've decided that if I ever get into contesting, it will be in 
RTTY mode first.


73 DE Charles Brabham, N5PVL

Prefer to use radio for your amateur radio communications? - Stop by at 
HamRadioNet.Org !

http://www.hamradionet.org

  - Original Message - 
  From: aa6yq 
  To: digitalradio@yahoogroups.com 
  Sent: Monday, November 23, 2009 7:34 PM
  Subject: [digitalradio] Re: HF International Automatic Subbands



  During an emergency, no one has a problem ceding frequencies to emcomm 
stations; its like heading for the shoulder when you hear an ambulance while 
driving.

  When there's no emergency underway, however, the automatic bands are 
available to all amateur stations, not just unattended stations. Its no more 
acceptable for unattended stations to QRM ongoing QSOs in the automatic bands 
than it is to QRM them anywhere else within the amateur spectrum.

  73,

  Dave, AA6YQ

  --- In digitalradio@yahoogroups.com, expeditionradio expeditionra...@... 
wrote:
  
I would also like the ALE and digital community to 
recognise that they share the bands with everyone else 
Dave (G0DJA) 
   
   Hi Dave,
   
   While I can't speak for the whole digital community, 
   I can probably speak with some authority for 
   the ALE community... 
   
   ALE operators have been sharing the ham bands 
   for many many years without harmful interference. 
   This is primarily due to the way that ALE has been 
   adapted to amateur radio by hams, a protocol adaption 
   known as ham-friendly ALE. 
   
   99% of ALE operation is in organised emcomm networks 
   and 99% of the organised networks are operating in the 
   internationally recogised HF automatic sub-bands, 
   where automatic modes have been in use for many years. 
   
   73 Bonnie VR2/KQ6XA
  



  

[digitalradio] Dx pile ups..

2009-11-23 Thread obrienaj
Bonnie said

the same goes for DX pileups. Basically, a pileup
is simply a contest where the number of possible contacts
is 1 and the number of possible multipliers is 1.

Everyone who enters the pileup contest is trying to
out-QRM the other entrants, or in FCC parlance...
to harmfully interfere with, the other contestants
in the pileup contest. They are trying to keep the other
stations from working the target station, in favor of
themselves. Louder, stronger, QRMer.

Surely Bonnie is correct in this?  Not ALL DXers , but the vast majority are 
doing what Bonnie describes when responding to a QRZ.  If I hear  P5DX QRZ?, 
then I hear November Seven Delta... starting a call and throw in Kilo Three 
Uniform Kilo on top of the 7  station (Danny) , Bonnie is correct that I have 
QRM'd him.  I guess the difference is that this is accepted and actually 
encouraged.

I still remember my utter shock when a new ham reading the ARRL handbook about 
DXing, and how a DX station would listen on incrementally different QRG and NOT 
tell you exactly where.  The book explained that the art of DXing was to 
determine the DX station's methods and skillfully figure out where he would be  
listening.  In Bonnie's context, this would be encouraging lots of QRM .

Skip's earlier point would be that this still differs from unattendned 
transmissions  but I think Bonnie's point is that the result is not that much 
difference.  Cue Bonnie with comments about goose and gander...

Andy K3UK






[digitalradio] Re: HF International Automatic Subbands

2009-11-23 Thread aa6yq
My recollection is that the discussions leading to the creation of the 
automatic sub-bands included expressions of the same concerns that continue to 
surface here: an operator in California who activates an unattended station in 
Denver can't know that the unattended station will QRM an ongoing QSO between 
stations in Chicago and Dallas because the operator in California hears neither 
of those stations. The FCC's solution to this problem was to

1. remind amateurs that they are expected to solve technical problems like this 
one

2. confine automatic operation above a specified baud rate to the automatic 
sub-bands

As has been pointed out here too many times, viable busy frequency detectors 
have indeed been developed, but they have unfortunately not been widely 
deployed. Perhaps Winmor will user in a new age of enlightenment. 

Your ALE setup is automatic, but its only unattended if its operating while you 
aren't in control.

 73,

 Dave, AA6YQ



--- In digitalradio@yahoogroups.com, Andy obrien k3uka...@... wrote:

  When there's no emergency underway, however, the automatic bands are 
  available to all amateur stations, not just unattended stations. Its no 
  more acceptable for unattended stations to QRM ongoing QSOs in the 
  automatic bands than it is to QRM them anywhere else within the amateur 
  spectrum.
 
  73,
 
  Dave, AA6YQ
 
 
 
 Excuse me for being so dumb, Dave...  what is the purpose for allowing
 unattended stations in a specific part of a band if they have to
 listen to make sure a frequency is clear?  I don't get it.  Also, am
 I wrong in thinking  that unattended versus automatic means the
 same thing?
 
 
 Hmm, in thinking back to the days that all this may have started,
 packet days,   I remember that my TNC would not transmit a packet if
 the TNC detected another station, it would wait a second or two.  is
 this the difference , that unattended with busy detect is fine ?
 
 Andy K3UK





RE: [digitalradio] Dx pile ups..

2009-11-23 Thread Dave AA6YQ
In a DX pileup, calling on the same frequency that someone else is calling
generally results in neither of you getting through, particularly if you are
using a digital mode. The idea is to

1. understand the range of frequencies in which the DX station is listening

2. crop your callsign into a hole in this range so that it will more
likely be heard clearly

In lighter pileups, the DX station may exhibit a pattern  -- .e.g. moving up
500 hz after each RTTY QSO. Astute DXers learn this pattern, anticipate the
next frequency, and call there. However, this only works when there aren't
too many astute DXers. Spectrum scopes have made it much easier to rapidly
detect such patterns, turning the anticipated next frequency into a zoo. As
a result, many DX stations have abandoned the pattern method; instead, they
randomly look for stations in the clear across the range in which they are
operating.

No DXer should participate in a pileup if doing so would QRM an ongoing QSO.
In my experience, politely asking the participants in the ongoing QSO to
move almost always yields a polite and positive response.

   73,

Dave, AA6YQ

-Original Message-
From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com]on
Behalf Of obrienaj
Sent: Monday, November 23, 2009 9:17 PM
To: digitalradio@yahoogroups.com
Subject: [digitalradio] Dx pile ups..



Bonnie said

the same goes for DX pileups. Basically, a pileup
is simply a contest where the number of possible contacts
is 1 and the number of possible multipliers is 1.

Everyone who enters the pileup contest is trying to
out-QRM the other entrants, or in FCC parlance...
to harmfully interfere with, the other contestants
in the pileup contest. They are trying to keep the other
stations from working the target station, in favor of
themselves. Louder, stronger, QRMer.

Surely Bonnie is correct in this? Not ALL DXers , but the vast majority are
doing what Bonnie describes when responding to a QRZ. If I hear  P5DX
QRZ?, then I hear November Seven Delta... starting a call and throw in
Kilo Three Uniform Kilo on top of the 7 station (Danny) , Bonnie is
correct that I have QRM'd him. I guess the difference is that this is
accepted and actually encouraged.

I still remember my utter shock when a new ham reading the ARRL handbook
about DXing, and how a DX station would listen on incrementally different
QRG and NOT tell you exactly where. The book explained that the art of
DXing was to determine the DX station's methods and skillfully figure out
where he would be listening. In Bonnie's context, this would be encouraging
lots of QRM .

Skip's earlier point would be that this still differs from unattendned
transmissions but I think Bonnie's point is that the result is not that much
difference. Cue Bonnie with comments about goose and gander...

Andy K3UK






[digitalradio] Digital busy detect

2009-11-23 Thread Charles Brabham
Packet radio gets by with a simple carrier detect, PACTOR can only detect other 
PACTOR stations, and from what I can tell, ALE has no busy detection at all.

Several years ago I took a serious look at automated busy detection, and always 
ran across the same stone wall:

A more sophisticated busy detect that can usually tell the difference between 
noise and a human activity like speech or digital transmissions is possible - 
BUT - only after the software has a fairly long audio sample to work with, and 
can look back upon that sample. 

It can't do this instantly, or even very quickly unless you have a 
supercomputer to work with.

If it listens to a long sample and a new signal comes in toward the end of that 
sample, that new signal may or may not end up being identified.

This is a terrible thing to have to report, but Packet's carrier detect is the 
most effective and sophisticated automatic signal detection scheme we currently 
have at our disposal. - It detects more kinds of activity *right then* than 
anything else that hams are currently using.

There are lots of signals that carrier detect will not detect - but it is still 
the best thing out there, that can automatically detect and act in ( more or 
less ) real-time.

The human ear works better, detecting signal intelligence and differentiating 
it from noise far better than any automated detection system. Period.

Better still is the human eye, looking at a properly set up waterfall display 
that will show you recognizable patterns in the waterfall image that you may 
not be able to register just by listening.

One thing to ponder is why carrier detect, developed over twenty-five years ago 
is not utilized by PACTOR or ALE, both allegedly more advanced than Packet. My 
feeling on this is that if they cannot detect signals as well as Packet does, 
then which mode is more advanced, more suitible for use on the ham bands?

That is really an unfair question in the case of PACTOR III and ALE, niether 
one of which was designed or ever intended for use within shared amateur radio 
spectrum, in the first place. It is not the square peg's fault that it will not 
fit in the round hole.

In the end, if we are not operating an automated station, then a waterfall 
display in combination with speaker audio is the most effective and useful busy 
detection system we have at our disposal, and this will almost certainly 
continue to be the case for a very long time.

For real-time automated busy detection, carrier detect is highly likely to be 
the best thing at our disposal - again for a very long time.

The Reed-Soloman ID system is a great step ahead for digital operation. It is 
not really useful as a real-time busy-detect, but it does give us a first step 
on something that may eventually take us there. As standards and hardware 
evolve over the years, we may eventually embed information into our data 
streams that can be instantly recognized as 'busy' by our software. - It may 
even approach the speed of carrier detect, and work with all modes.

But don't hold your breath, it's not right around the corner.


73 DE Charles Brabham, N5PVL

Prefer to use radio for your amateur radio communications? - Stop by at 
HamRadioNet.Org !

http://www.hamradionet.org






RE: [digitalradio] Re: HF International Automatic Subbands

2009-11-23 Thread John Bradley
This is true that only the FCC has set up automatic sub-bands.

 

Most other countries adhere to the RECOMMENDATIONS of the IARU with respect
to where and how to operate but these do not

carry the force of law.  This, and years of good operating practices has
defined band operations. 

 

In Canada, amateurs are limited to a maximum power output, and a maximum
bandwidth (6khz) except on 30M where it is 1khz bandwidth. Even with the
freedom to operate any mode anywhere, the vast majority of operators more or
less follow the established band plans. 

 

John

VE5MU

 

From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On
Behalf Of David Struebel
Sent: Monday, November 23, 2009 7:50 PM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] Re: HF International Automatic Subbands

 

  

Bonnie,

 

Just a point... I don't believe the HF automatic sub bands are
internationally recognized.

 

To my knowledge it is only the FCC in the US that has set up these automatic
control sub bands.

 

73 Dave WB2FTX

- Original Message - 

From: expeditionradio mailto:expeditionra...@yahoo.com  

To: digitalradio@yahoogroups.com 

Sent: Monday, November 23, 2009 7:21 PM

Subject: [digitalradio] Re: HF International Automatic Subbands

 

  

 I would also like the ALE and digital community to 
 recognise that they share the bands with everyone else 
 Dave (G0DJA) 

Hi Dave,

While I can't speak for the whole digital community, 
I can probably speak with some authority for 
the ALE community... 

ALE operators have been sharing the ham bands 
for many many years without harmful interference. 
This is primarily due to the way that ALE has been 
adapted to amateur radio by hams, a protocol adaption 
known as ham-friendly ALE. 

99% of ALE operation is in organised emcomm networks 
and 99% of the organised networks are operating in the 
internationally recogised HF automatic sub-bands, 
where automatic modes have been in use for many years. 

73 Bonnie VR2/KQ6XA



  _  


No virus found in this incoming message.
Checked by AVG - www.avg.com 
Version: 9.0.709 / Virus Database: 270.14.79/2522 - Release Date: 11/23/09
14:45:00





RE: [digitalradio] Digital busy detect

2009-11-23 Thread Dave AA6YQ
Did you evaluate the busy frequency detector in Scamp, Charles?

Have you evaluated the busy frequency detector in Winmor?

73,

Dave, AA6YQ

-Original Message-
From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com]on
Behalf Of Charles Brabham
Sent: Monday, November 23, 2009 9:55 PM
To: digitalradio@yahoogroups.com
Subject: [digitalradio] Digital busy detect




Packet radio gets by with a simple carrier detect, PACTOR can only detect
other PACTOR stations, and from what I can tell, ALE has no busy detection
at all.

Several years ago I took a serious look at automated busy detection, and
always ran across the same stone wall:

A more sophisticated busy detect that can usually tell the difference
between noise and a human activity like speech or digital transmissions is
possible - BUT - only after the software has a fairly long audio sample to
work with, and can look back upon that sample.

It can't do this instantly, or even very quickly unless you have a
supercomputer to work with.

If it listens to a long sample and a new signal comes in toward the end of
that sample, that new signal may or may not end up being identified.

This is a terrible thing to have to report, but Packet's carrier detect is
the most effective and sophisticated automatic signal detection scheme we
currently have at our disposal. - It detects more kinds of activity *right
then* than anything else that hams are currently using.

There are lots of signals that carrier detect will not detect - but it is
still the best thing out there, that can automatically detect and act in (
more or less ) real-time.

The human ear works better, detecting signal intelligence and
differentiating it from noise far better than any automated detection
system. Period.

Better still is the human eye, looking at a properly set up waterfall
display that will show you recognizable patterns in the waterfall image that
you may not be able to register just by listening.

One thing to ponder is why carrier detect, developed over twenty-five years
ago is not utilized by PACTOR or ALE, both allegedly more advanced than
Packet. My feeling on this is that if they cannot detect signals as well as
Packet does, then which mode is more advanced, more suitible for use on the
ham bands?

That is really an unfair question in the case of PACTOR III and ALE, niether
one of which was designed or ever intended for use within shared amateur
radio spectrum, in the first place. It is not the square peg's fault that it
will not fit in the round hole.

In the end, if we are not operating an automated station, then a waterfall
display in combination with speaker audio is the most effective and useful
busy detection system we have at our disposal, and this will almost
certainly continue to be the case for a very long time.

For real-time automated busy detection, carrier detect is highly likely to
be the best thing at our disposal - again for a very long time.

The Reed-Soloman ID system is a great step ahead for digital operation. It
is not really useful as a real-time busy-detect, but it does give us a first
step on something that may eventually take us there. As standards and
hardware evolve over the years, we may eventually embed information into our
data streams that can be instantly recognized as 'busy' by our software. -
It may even approach the speed of carrier detect, and work with all modes.

But don't hold your breath, it's not right around the corner.


73 DE Charles Brabham, N5PVL

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