Re: [digitalradio] Re: Airmail

2009-05-11 Thread Chuck Mayfield
Or, Scott, try Google with  airmail  agwpe   there are many links to 
answer your question several ways.
73,
Chuck AA5J

Gary wrote:


 Scott,

 Take a look here. Question #3015

 http://www.winlink.org/faq http://www.winlink.org/faq

 73,

 Gary N7XOO

 --- In digitalradio@yahoogroups.com 
 mailto:digitalradio%40yahoogroups.com, Scott firebug...@... wrote:
 
  OK, got a question here - and hopefully someone can point me in the
  right direction.
 
  I am using the AGW Packet Engine and Winpack for me packet radio
  operation - that is all working great. Now, I would like to add airmail
  into the mix - I have been told time and time again that you cannot use
  airmail with AGW, that you have to have an actual TNC - BUT I found the
  info on how to do that online about 2 years ago, and it worked great,
  unfortunately stupid me, I didn't save them or they got deleted, anyway
  they are gone, and I really would like to get that working here on my
  laptop. So if any of you have any idea how to do it, would you please
  let me know, or point to me where I can figure it out? I don't have
  much time online to search for stuff like that right now or I would sit
  down and start searching again.
 
  Thanks for any help, and if you need any more info, please let me know.
 
  Scott, W7SOT
 

 


Re: [digitalradio] There really is no flame war from my perspective OT OT OT OT TO

2009-04-02 Thread Chuck Mayfield
So, is this discussion off topic or what?  This must be the 50th time 
that I have had to delete this same discussion.  What say you give it a 
rest?

Please?

Chuck AA5J

Rick W wrote:

 Hi Stelios,

 The reason you may not have heard from others with their difficulties
 with Linux, is that they there are few who have even tried and those who
 have may not talk about it. I take the middle path, where I see the
 value of both OS's, but the value of Microsoft is still very large, at
 least here in the U.S. As Andy can tell you, I had a lot of trouble for
 several years with Linux not able to run my 22 Samsung SyncMaster
 225BW, particularly with my higher end AMD/Nvidia HP computer. I have
 been able to run openSolaris from a live disk, not that I would plan to
 move toward that OS, HI.

 They always tell you to make sure that you try the live disk so
 everything can be checked out to work properly. Then when it does not,
 they tell you to install the OS and do the various configurations,
 downloads of software, etc. to get it to work. Most people have no
 interest in doing that and never will. I have spent many, many hundreds
 of hours with Linux, partly because I was going to figure this out and
 get it to work. It has been quite expensive compared with Microsoft
 products because of books and some commercial software that I have
 bought to try and get a better understanding. But after considerable
 interfacing with support groups and even to the point of getting a
 commercial product sent to me from the company, I could not match
 Microsoft. I eventually realized that if techy types like me are having
 this much trouble, it just is not going to go anywhere with average
 users, and that includes ham users too, if they can't get something to
 work well. Not just getting by, but with good usability.

 More recently I have tried live disks of Mandriva One 2009, Ubuntu 8-10,
 openSUSE, fedora 10,and others and found that although I could get the
 resolution correct for the monitor from some (not all), on my lower end
 emachines computer (2.4 GHz/512 Meg RAM), the font rendering of all
 Linux that I have seen thus far is inferior to WinXP and Vista. And I
 have also found that Vista is better than WinXP. Some will outright deny
 it, but I have had some agree that, yes Linux is not quite as good with
 font rendering, but that doesn't bother them because they want the
 freedom from MS, etc. I don't have any problem with MS at all as long as
 the product works well and supports what I am doing with computers.

 I have a brother who is an administrator for a well known University
 system and he runs many Linux and MS servers and has no problem with
 either. When I mention the desktop, he laughs and says that he would
 never use Linux for that, although he might use Apple Mac OSX.

 For me, (not others perhaps, but for me), if I switch to another OS,
 there has to be a reason other than I hate someone. It just has to work
 as well as what I am currently using and have additional advantages.
 Linux may have advantages in terms of viruses and malware, however a
 prudent person will still run security software on any system. But most
 all the programs that people like to use on Linux, which are generally
 free as in beer and free as in speech, are also available on Microsoft
 OS's too. For casual users who need mostly the web and an office suite,
 they could use Firefox and Open Office on either platform. For those who
 have specialty interests, especially ham radio, then MS has the edge
 since the best ham software is often only available on Microsoft OS's.
 Sometimes the only software.

 Since Microsoft OS's are typically pre-installed on computers here in
 the U.S., I don't see any change coming soon where you would buy a
 computer without an OS. Even the eeePC which Linux had a lock on the
 market for many months, is now mostly MS. If it can not beat MS on that
 platform, when will it? I see Linux gaining momentum in developing
 nations and since they make up the majority of the world's population,
 that has to eventually cause the tide to shift toward Linux. But that
 could be a decade or two away here in the U.S?

 For PSKmail, my expectation is that you need a sort of critical mass
 of users. That can not happen here without running the client on
 Microsoft OS's. Even then there are competing systems depending upon
 what you want for capabilities. Even for those who are Linux averse, it
 is not unreasonable that someone who wants to run a server could get
 that to work. I know that I could do it, as at one time I had fldigi
 running under Linux. (It did take quite a bit of effort and tremendous
 help from Dave, W1HKJ who is simply outstanding with his support).

 One area that you mention with the use of ARM based computing, or other
 low cost, low power systems, has to be the strongest value of Linux at
 this time. It can scale up or down as needed and Microsoft can not match
 it on the low end.

 It will 

Re: [digitalradio] SL-1 with Ten Tec 540

2009-02-28 Thread Chuck Mayfield
Kim
My guess is that 20-30 watts out is all you will be able to get and have 
your signal remain linear.  Make sure you have zero ALC.

73,
Chuck AA5J

Kim wrote:

 I am using my new old Ten Tec 540 in digital mode. What I am finding
 is I am only able to get 20-30 watts out due to my sound card not
 providing enough gain in the audio (I get 100 watts in CW mode). I am
 using a manual ptt connection to the back of the radio.

 Will an SL-1 provide the umpf I need to get a better signal out? Or
 an interface from a different manufacturer?
 Thanks for your assistance.

 Kim AB7JK

 


Re: [digitalradio] Re: illinoisdigital group

2009-02-23 Thread Chuck Mayfield
I only wish Yahoo would find another sponser for the group.
What happened to all the good information in the files section?
What happened to all the good information in the posts?
Who actually owns the posts by group members?
Are we all to be punished?

John, Exactly how does one actually contact Yahoo??

Chuck AA5J

Rick W wrote:

 It sounds like either Mark is being dishonest with me, or your contact
 had inside information that he did not share with Mark.

 I too would think that Yahoo gave a warning, but at this point we just
 don't know.

 Don't bitch about Mark being reinstated as long as he stops his over
 promotion of digital. It is too bad that he could not channel his
 enthusiasm for digital in a more productive manner. It is rare to find
 many who really try to promote digital and while you might think it is a
 gain to be rid of him, I think that it is really more of a net loss.

 Talking about the stock market right now is depressing though. I wonder
 if we can ever recover from our current losses we already have, not to
 mention the possibility of further losses if we really do go into a
 depression. Never thought we would have something like this happen in my
 lifetime. But the checks and balances were all bought and sold by the
 rich it appears:( Pretty sad country we now live in.

 73,

 Rick, KV9U

 John Becker, WØJAB wrote:
  DIRECT MESSAGE -
 
  Rick
  He was warn many many times.
  People have been bitching at him for the last 2 years.
 
  I was myself was not told if yahoo gave any warning but
  one would think they did before taking any action.
  But what I do know is that they (yahoo) saw the same post
  going to some 43 list it opened eyes. The day he got booted
  my contact told me he would be removed that day.
 
  I for one talk to the corp office as a yahoo stock holder
  about 6 weeks ago. And if he is reinstated I'll be bitching
  with a very loud voice. And if he reinstated I will sell ALL
  of the close to 93K shares.
 
  You know what they say - money talks and bullshit walks.
  I put a hell of a lot of money into yahoo when I sold my
  company 3 years ago.
 
  John
 

 



Re: [digitalradio] RTTY Dilemma

2008-09-29 Thread Chuck Mayfield
Aha! I get the point.  I was thinking 'casual' and you were thinking 
'competitive'.  Sorry for the QRM. :-[

Michael Keane K1MK wrote:
 On 9/28/2008 9:04 PM, Chuck Mayfield wrote:

   
 Are you picking Nits? You actually want all the software developers
 except three to make modifications for 85 Hz?
 

 Of course not. It's be much more effective to ask those using software 
 with that sort of defect to refrain from generating inaccurate spots; or 
 learn how to set up the radios and software they're using according to 
 convention  :-)

   




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Re: [digitalradio] RTTY Dilemma

2008-09-28 Thread Chuck Mayfield
Rick,
Are you picking Nits? You actually want all the software developers 
except three to make modifications for 85 Hz?
Oh, say, does everyone know which is the Mark and which is the Space?
On twenty meters you are talking about the 5th and 6th decimal places. 
14.08 vs 14.080085 MHz.
Give me a break!!!

Chuck AA5J

Rick Ellison wrote:

 That should be 85hz not 86hz

 73's Rick N2AMG

 Yahoo:n2amg

 Aim:n2amg

 *From:* digitalradio@yahoogroups.com 
 [mailto:[EMAIL PROTECTED] *On Behalf Of *Rick Ellison
 *Sent:* September 28, 2008 8:39 PM
 *To:* digitalradio@yahoogroups.com
 *Subject:* [digitalradio] RTTY Dilemma

 After an email exchange with Joe W4TV about some support help he was 
 giving to a person using one of my gateways . He brought to my 
 attention on the way the frequency was being read and displayed RTTY. 
 If I wanted to place a spot on the correct frequency I would need to 
 place the actual frequency +/-86hz because this app I am connecting to 
 uses the center frequency as it’s marker. So I made the changes in the 
 code to compensate for that and spent since this morning clicking on 
 over a thousand spots (1225 to be exact) to see if it landed on the 
 correct spot in the waterfall. But what I found was a little more than 
 half(714) of the spots I clicked I was always off by the 85 hz I 
 adjusted for. If I just used the center frequency I was correct in 
 those spot’s placement. So I went and did some checking. Every digital 
 app that copied RTTY except for the 3 main contest 
 loggers(N1MM,Writelog,Win-Test), MMTTY in Stand-alone, and WinWarbler. 
 All use the center frequency even when spotting stations if they can 
 spot. Those mentioned all use the Mark Frequency when clicking on a 
 spot and placing the station in the waterfall.

 It is a long standing standard that The standard for BOTH amateur and 
 commercial FSK has ALWAYS been specify MARK with MARK being the 
 higher RF frequency and SPACKE being the lower RF frequency (e.g., 
 shift low).

 With all of the Digital Apps that use a center frequency When dealing 
 with RTTY should be using the mark frequency for their frequency 
 calculations not the center. Even tho USB has become the standard when 
 LSB always has been, The recorded frequency for logging and spotting 
 should be the Mark. If all of the software developers stuck to this 
 standard clicking on a spot would reduce additional tuning needed to 
 tune the off frequency stations.

 73's Rick N2AMG

 Yahoo:n2amg

 Aim:n2amg

  





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Re: [digitalradio] SignaLink USB Interface Reviewed in Popular Communiations, September 2008

2008-09-03 Thread Chuck Mayfield
Mark Thompson wrote:
 http://www.popular-communications.com/PC%20Highlights%20Sept%2008.html
 TECH SHOWCASE
 The SignaLink USB Interface—A Plug-And-Play Solution For Digital 
 Communications Modes
 by John Kasupski, KC2HMZ
  
 Anyone who has experimented with receiving digital format signals by radio 
 has undoubtedly experienced one or more of the difficulties that typically 
 arise when you set out to decode digital signals using a radio and computer. 
 Your sound card is incompatible with your software, or you don’t want it tied 
 up doing digital decoding. You have more than one radio you want to use and 
 don’t want to have to buy or build separate interfaces for each. Or perhaps 
 you just don’t want to pay a fortune for all the software you need in order 
 to decode the numerous digital modes that exist (with new ones seemingly 
 being invented daily). If this is the situation you’ve found yourself in, 
 you’ll find this article to be just what the doctor ordered.
 Earlier this year, I purchased a SignaLink USB interface (Photo A) from 
 Tigertronics in Grants Pass, Oregon. This device, which costs less than some 
 of the competing commercially available radio/computer interfaces ($104.95 if 
 ordered with a cable to fit Kenwood and ICOM radios using a 13-pin DIN 
 accessory port; $99.95 for everybody else), not only interfaces your computer 
 to any radio, it also contains its own built-in USB sound card. That means 
 that the sound card already in your computer is left free for whatever else 
 you want to do with it.

 How It Works And What You Get
 The SignaLink USB connects to your computer’s USB port and is powered from 
 the USB port so that no external power source is needed. All the necessary 
 cables come with the device, including the USB cable, the cable to interface 
 the SignaLink USB to your radio, and a mono cable to connect to radios that 
 don’t have receive audio on the mic or accessory jack. Additional cables can 
 be ordered if you have more than one radio and they don’t use the same cable.
 The mono cable can be used to connect the SignaLink USB to an external 
 speaker jack on a scanner or shortwave receiver, or if using a transceiver, 
 the connection is made using the radio cable. This can be accomplished using 
 a connection to a 4-pin round, 8-pin round, RJ-11, or RJ-45 mic connector, or 
 you may instead order the radio cable to connect to a data or accessory port 
 that uses a 5-pin DIN, 8-pin DIN, 13-pin DIN, or 6-pin mini-DIN connector. An 
 un-terminated cable for radios that use a different type of connector is also 
 available in case you have an unusual situation, such as wanting to build a 
 cable for a handheld radio.
 Also included with the device is a set of jumper wires that simply push into 
 a socket on the SignaLink USB’s circuit board. A software CD is also included 
 with the device and contains jumper settings for the most popular radios. 
 Settings for other radios can be determined by following the procedure in the 
 included manual, or by contacting the Tigertronics tech support staff.
  
 To read the entire article, subscribe to Popular Communications  
 http://unix8.sunserver.com/cq/Search.bok?category=Popular+Communications+Subscription+NEW+or+RENEWAL
  
 Digital Ham Group
 http://groups.yahoo.com/group/illinoisdigitalham/


   
   
I am sorta hesitant to enter this thread, so I will simply make the 
suggestion that the noise in the original post is not noise, but 
rather it is interference, i.e. signals caused by the electronics in the 
unit and not from external sources.

Please excuse this interruption

Chuck AA5J




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Re: [digitalradio] Fast ARQ Hardware

2008-08-29 Thread Chuck Mayfield
Tom Tcimpidis wrote:

 As an engineer who designed RF systems in a place far away and long ago,

 the cost of switching 100 watts of RF electronically as opposed to a 
 fast relay device is MUCH higher.

 Most Amateurs simply would not want to pay the price of fast 
 all-electronic switching when they

 don’t need it and it brings little to the table.

 Tom

 K6TGT/AAR9BD

  This is a sidebar to the current discussion but I've always been
 surprised at the amount of mechanical T/R switching that goes on in
 modern transceivers vs. a no moving parts approach.

  
How long ago was it Tom? What happens to the 100 watt output if the 1 
watt driver is electronically switched off? Is it switched off 
electronically? How much does it cost to switch a 1 watt exciter off???

AA5J




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Re: [digitalradio] AX.25 vs Something New

2008-08-08 Thread Chuck Mayfield - AA5J
Several modems on that link claim fx.25 compatibility; TNC-X comes to 
mind, but they all seem to have been developed for VHF/UHF use, so YMMV 
on HF.
Chuck AA5J
Rick W. wrote:

 I have not heard of anyone doing this, but it sounds like it could be an
 improvement. Is anyone on the group experimenting with such proposals?

 73,

 Rick, KV9U

 Chuck Mayfield - AA5J wrote:
  Bill Vodall WA7NWP wrote:
 
  Phil's paper is from many years ago but the reality is that there 
 was no
  further movement away from the legacy AX.25 equipment toward a new
  layer, much less toward a completely new protocol.
 
  There is some movement...
 
  Check out:
 
  FX.25 - Forward Error Correction Extension to AX.25 Link Protocol For
  Amateur Packet Radio (pdf file 138k)
 
  The FX.25 extension to AX.25 implements a Forward Error Correction
  (FEC) ?wrapper? around a standard AX.25 packet and is designed to
  supplement the existing AX.25 infrastructure without displacing it.
 
  http://www.stensat.org/Docs/FX-25_01_06.pdf 
 http://www.stensat.org/Docs/FX-25_01_06.pdf
  http://www.stensat.org/Docs/FX-25_01_06.pdf 
 http://www.stensat.org/Docs/FX-25_01_06.pdf
 
 
 
  ... and, perhaps this link
  http://www.stensat.org/projects/FX-25/FX-25_performance.htm, 
 http://www.stensat.org/projects/FX-25/FX-25_performance.htm,
  http://www.stensat.org/projects/FX-25/FX-25_performance.htm 
 http://www.stensat.org/projects/FX-25/FX-25_performance.htm
  but that was in 2006...
 
  Chuck AA5J
 

  



Re: [digitalradio] AX.25 vs Something New

2008-08-07 Thread Chuck Mayfield - AA5J
Bill Vodall WA7NWP wrote:

  Phil's paper is from many years ago but the reality is that there was no
  further movement away from the legacy AX.25 equipment toward a new
  layer, much less toward a completely new protocol.

 There is some movement...

 Check out:

 FX.25 - Forward Error Correction Extension to AX.25 Link Protocol For
 Amateur Packet Radio (pdf file 138k)

 The FX.25 extension to AX.25 implements a Forward Error Correction
 (FEC) ?wrapper? around a standard AX.25 packet and is designed to
 supplement the existing AX.25 infrastructure without displacing it.

 http://www.stensat.org/Docs/FX-25_01_06.pdf 
 http://www.stensat.org/Docs/FX-25_01_06.pdf

  
... and, perhaps this link 
http://www.stensat.org/projects/FX-25/FX-25_performance.htm, 
http://www.stensat.org/projects/FX-25/FX-25_performance.htm
but that was in 2006...

Chuck AA5J


Re: [digitalradio] AX.25 vs Something New

2008-08-06 Thread Chuck Mayfield - AA5J
Rud Merriam wrote:

 I suggest anyone interested in this topic start by reading
 http://citeseer.ist.psu.edu/cache/papers/cs/2504/http:zSzzSzpeople.qualcomm. 
 http://citeseer.ist.psu.edu/cache/papers/cs/2504/http:zSzzSzpeople.qualcomm.
 comzSzkarnzSzpaperszSznewlinkpaper.pdf/karn94toward.pdf by Phil Karn KA9Q.
 If anyone does not recognize his name or call then research him because he
 is an icon in amateur packet and digital communications. One of the
 experts.





  




I recognize him, Rud, but that link is gobbledegook to me. Can you 
resend it?

Chuck AA5J


Re: [digitalradio] AX.25 vs Something New

2008-08-06 Thread Chuck Mayfield - AA5J
Rud Merriam wrote:

 You mention protocol layers. Which model do you want to use for 
 discussion,
 OSI or the Internet model? Perhaps not a big question since layers 1  
 2 are
 the same but once we start moving up the stack they differ.

   



I have a problem with the formatting on this reflector.  Please excuse 
me for that.

My question, as an unenlightened retired engineer, is What difference 
does it make which model is used if the proposed changes are to Level 
1?  Apparently I don't speak the same language ...but can the same 
model(s) not be used with a differing Level 1 protocol?

Chuck AA5J


Re: [digitalradio] Re: CW - last resort?

2008-06-01 Thread Chuck Mayfield
Do not laugh.  It could come to pass that we (mankind) will need to 
reinvent spark gap.Who knows what evil lurks in the minds

Chuck AA5J

At 02:39 PM 6/1/2008, Jack Hamilton wrote:


On Sun, 01 Jun 2008 15:07:17 -0400, Paul L Schmidt, K9PS
mailto:k9ps%40arrl.net[EMAIL PROTECTED] said:
  Andrew O'Brien wrote:
   My reading of the message is that Morse code is authorized NOT
   mandated. It seems a reasonable decision for a organization often
   dependent on volunteers, if they want to use it.. let'em. MARS will
   continue to use MT63, ALE, PSK, and many other digital modes.
  
   Andy K3UK
  
 
  That's exactly the correct reading. Another tool for the toolbox.
 
  Digital modes (ranging in complexity from WL2K and ALE down to PSK31
  and RTTY) will carry the bulk of the traffic. But if the computer
  goes down and propagation stinks, CW certainly beats nothing.

I guess it's time for us all to learn how to build spark gap
transmitters, just in case.

--
Jack Hamilton
Sacramento, California
mailto:kd6ttl%40arrl.net[EMAIL PROTECTED]





Re: [digitalradio] 10MHz Ham Digi Band Research Survey Chart 10140-10150kHz

2008-04-13 Thread Chuck Mayfield
At 12:48 PM 4/12/2008, expeditionradio wrote:

New 10MHz Ham Digi Band Research Survey Chart
10140kHz to 10150kHz Digital/Auto Sub-Band
Click here:
http://hflink.com/bandplans/10mhz/http://hflink.com/bandplans/10mhz/

73 Bonnie VR2/KQ6XA
What was the question that was answered to make the chart?

V/R
Chuck AA5J 



Re: [digitalradio] April QST page 35

2008-03-25 Thread Chuck Mayfield - AA5J
Speaking of page 35,  Is anyone using Outpost with soundcard?

Chuck AA5J


Re: [digitalradio] RFI-Free PCs?

2008-03-23 Thread Chuck Mayfield - AA5J
Is your display LCD or CRT?
In my experience, CRT displays are sometimes a major source.



Re: [digitalradio] Re: RFSM 8000

2008-02-01 Thread Chuck Mayfield - AA5J
dmitry_d2d wrote:

 1. A few words about OFDM and serial tone modem.
 Let's find out how the fight between ISI and Doppler shift
 takes place in these systems. OFDM uses the great number of low
 speed channels so the symbol duration increases. While the
 duration of ISI is much smaller than symbol duration everything
 goes well. Consequently there is an aim to increase the number
 of channels ad infinitum BUT at the same time natural limitation
 takes place. It's just a Doppler shift effect. Hence there is
 always a compromise between ISI and Doppler shift. Moreover we
 should take into consideration a big peak factor which results
 in non-effective usage of power of transceiver. There are
 methods directed at improvement of peak-factor, but the most
 part of them makes the system characteristics worse.
 In case of serial tone modulation the fight ISI with Doppler
 is provided with adaptive algorithms. The more effective and
 faster they are the larger number of Doppler and ISI the modem
 can manage.
 As for RFSM it should be mentioned that now it includes
 rather efficient adaptive algorithms that work properly at a
 speed of 600(500) up to 4800(4000) bps (wide/narrow mode). To
 work at a speed 6400(5333) - 8000() much more compound
 algorithms are needed. In particular using turbo-equalization
 will improve noise proof feature at all rates.
 Therefore OFDM and serial tone modem can be more efficient
 in dependence on channel statement. In my opinion serial tone
 modem with effective adaptive algorithms is the most effective.
 We'd like to mention that under certain circumstances either
 serial tone or OFDM modem can fail to provide connection, for
 example, when the Doppler shift is extremely high (polar
 communications). In that case one should use the methods of
 spectrum spread that extending the symbol in time and
 frequency. Unfortunately the speed would not be high in this
 case.
 So the best way out is to measure the channel
 characteristics and choose the speed of transmission and
 modulation method according to them. The full adaptation of the
 all characteristics is required.

 2. About our users.
 The project RFSM-2400/8000 was initially aimed at
 organizations (not for HAMs)! (First version had no 0,3-2,7
 band, which is adapted for HAMs).
 Its prime value is that high-performance algorithm is used
 in it. Consequently only technical specialists of organizations
 where data (files, mail etc.) transmission through HF is needed
 can estimate the program at its true worth. They need the
 following: high speed of connection and data transmission. They
 are the FIRS GROUP OF OUR USERS. For example there are
 organizations (our users at the moment) who even haven't looked
 upon HAM -modems (little speed, instability, absence of files
 transmission in spite of excellent chat-exchange).
 If you are interested in RFSM as in a program for chat-
 exchange (or even for file transmitting but you do not need a
 high speed) and runner is not important for you:. You are the
 SECOND GROUP OF OUR USERS. $60 may be a pretty penny for this
 product for you.
 There is also not numerous GROUP OF USERS - THE THIRD ONE
 The representatives of this group are specialists in HF-
 radiocommunications and radioamateurs at the same time who is
 interested in algorithms of a high efficiency - the runner of
 the program. May be $60 is rather expensive for them but they
 can trial versions for free. They communicate with us suggesting
 interesting and moreover useful ideas. We really appreciate
 their advices and suggestions. Due to the THIRD GROUP the first
 version of RFSM has transformed in the product adopted for HAM.

 3 . There are several remarks on the open source codes.
 a) RFSM-2400 (and all the more RFSM-8000) is not just a
 dumb modem though such a rate is also possible (it was used in
 PSKMail). Our product is an accomplished system of communication
 that provides different types of services including
 receiving/transmitting e-mail on Internet.
 b) Speaking about OFDM it should be pointed out that we have
 got experience in such a kind of modulation and can remark that
 to construct this modem is incommensurably easier than Serial
 Tone Modem. But the modem of this kind doesn't compare with RFSM
 characteristics. If we were not be able to realize Mil-STD
 correctly and use OFDM in RFSM, we would not be sorry to
 distribute source codes.
 c) Philosophy. Professional free software is possible
 because qualified developer has been grown up by certain
 company. The buyers have already paid for software and
 progressive developer as well. Then at the same time free
 software appears (like RFSM-2400) - like an ad, to create an
 image or ease consumers' tasks. The fact that software is free
 is a result of successful sales of developer. However free
 software is not possible in fact. The bigger the quantity of it
 the poorer it's quality. So said Write on C++ for food ;)
 There is also rather INTERESTING free 

OT Re: [digitalradio] Data Defined

2008-01-23 Thread Chuck Mayfield - AA5J
Harry Wiliford wrote:

 [edit] Etymology
 The word data is the plural of Latin datum, neuter past participle of
 dare, to give, hence something given. The past participle of to
 give has been used for millennia, in the sense of a statement accepted
 at face value; one of the works of Euclid, circa 300 BC, was the
 Dedomena (in Latin, Data). In discussions of problems in geometry,
 mathematics, engineering, and so on, the terms givens and data are used
 interchangeably. Such usage is the origin of data as a concept in
 computer science: data are numbers, words, images, etc., accepted as
 they stand. Pronounced dey-tuh, dat-uh, or dah-tuh.

 Experimental data are data generated within the context of a scientific
 investigation.

 data are numbers, words, images, etc., accepted as they stand.
 Pronounced dey-tuh, dat-uh, or dah-tuh.
 73 de wb9iiv - Harry
 _,_._





















Wow!  All of a sudden, I feel enlightened.   Thanks, Harry.

Chuck - AA5J


Re: [digitalradio] Re: Trouble at mill RTTY contesters war with HFlink

2008-01-13 Thread Chuck Mayfield
This is getting ridiculous!  It takes me nearly 10 seconds to say
This is AA5J   Is the frequency in use?



Re: [digitalradio] Is Propnet/HF APRS legal in USA ? (was : Trouble at mill RTTY contesters war with HFlink

2008-01-13 Thread Chuck Mayfield
At 09:57 AM 1/13/2008, Rick wrote:
My preference would have been for those who want to operate these kinds
of modes to request an interpretation and if the finding was not to
their satisfaction, to petition the FCC for a rule change. They did not
do this and now some of us have had to take action and do it in their
place.


So, Rick, from whom did you get your mandate to take action?
It certainly was not me.  I don't even use any of those modes,
but I do not appreciate activists who have to take action when
nothing is necessarily wrong.  If you want to feel powerful,
why don't you run for office or something?

Don't take this personally, please.

73,
Chuck  AA5J 



Re: [digitalradio] Is Propnet/HF APRS legal in USA ? (was : Trouble at mill RTTY contesters war with HFlink

2008-01-13 Thread Chuck Mayfield
I certainly agree.  Now, given the FCC's position, why do we amateurs need all
the activist lawyers and lawyer-wannabes from our ranks sending 
queries to the FCC concerning
practices by other control operators?  We are all responsible for our 
own operations.   Right?

Chuck AA5J

At 10:14 AM 1/13/2008, kh6ty wrote:
The FCC's Bill Cross has already stated publicly, Your call sign, your
responsibility.

Skip KH6TY



Re: [digitalradio] Is Propnet/HF APRS legal in USA ? (was : Trouble at mill RTTY contesters war with HFlink

2008-01-13 Thread Chuck Mayfield
At 10:14 AM 1/13/2008, kh6ty wrote:
PropNet station, and that station *consistently*, and repetitively,
interferes with activity on that frequency, the presumption has to be that
the PropNet operator is either willfully transmitting on top of existing
activity, or lying about being at the control point.


Uh, Skip, how many times have you called another station that you 
could hear, but they did not come back to you, or came back to with a 
53 or so report?  Just because you can hear them, does not mean that 
they can hear you.  They KW when you are transmitting 25W. vbg

Chuck  AA5J




Re: [digitalradio] Is Propnet/HF APRS legal in USA ? (was : Trouble at mill RTTY contesters war with HFlink

2008-01-13 Thread Chuck Mayfield
Yes. Thank you for your very welcome explanation.  I guess someone 
has to stir the pot, but I was having fun in my ignorance and bliss.
I don't really want anyone to clarify that I can not do something 
that I have been doing, just because someone else did not understand 
the rules.  The people who are at FCC now, well most of them,  were 
not even there when the rules, well most of them, were written, and 
probably don't understand the English language any better than you 
and I.  So why stir the pot for a specific ruling unless you have 
some sort of agenda or are on some sort of power trip?

Yamamoto said I fear we have waken a sleeping giant after attacking 
Pearl Harbor.  Others have said Let a sleeping dog lie.  Many other 
sayings along those lines, might make one think that Don't stir the 
pot is also appropriate advice.  No one has received any citations 
for the actions you question in your list to the FCC.  Who are you after??

73, Chuck AA5J

At 01:12 PM 1/13/2008, Rick wrote:

All I can say is that your comment is extremely odd, Chuck, and are not
welcome by thinking hams and reasonable people. Some one has to take
action or nothing will change and we will continue to have absurd
arguments over each person's individual interpretation. Not a good
situation.

When you identify a problem in understanding a rule, and clearly there
is no question that a number of rules are at issue, and you contact ARRL
and ask for understanding, and they consider a rule to be unclear, what
else can a reasonable person do than ask those who are the rule
interpreters?

How could you possibly not agree with that? How could anyone not agree
with that other than a person with an extreme agenda?

As a long time instructor, I feel that of all people, I should know the
answer to most any Part 97 rule since I teach these rules in my classes.
If I don't understand it, how can I be expected to explain it to others?

It has nothing to do with any power trip. We all know the folks who are
involved in that!

Remember that even a lawyer can not help in such cases, unless they
happen to be the lawyer who is enforcing the rules. That is why you need
to find the person where the buck eventually stops and they can make an
interpretation. If you don't like their interpretation, you can petition
for a change.

As a professional consultant involved in environmental safety and health
for many years, I did this frequently. You don't just tell your clients
that no one really knows. It is not possible to just know the
interpretation of every rule as written in a regulation. You simply must
contact those who do the interpretation when you are in doubt.

Do you have a better understanding of why this is done in this manner?

73,

Rick, KV9U

Chuck Mayfield wrote:
  At 09:57 AM 1/13/2008, Rick wrote:
 
  My preference would have been for those who want to operate these kinds
  of modes to request an interpretation and if the finding was not to
  their satisfaction, to petition the FCC for a rule change. They did not
  do this and now some of us have had to take action and do it in their
  place.
 
 
 
  So, Rick, from whom did you get your mandate to take action?
  It certainly was not me. I don't even use any of those modes,
  but I do not appreciate activists who have to take action when
  nothing is necessarily wrong. If you want to feel powerful,
  why don't you run for office or something?
 
  Don't take this personally, please.
 
  73,
  Chuck AA5J
 
 


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Re: [digitalradio] Is Propnet/HF APRS legal in USA ? (was : Trouble at mill RTTY contesters war with HFlink

2008-01-13 Thread Chuck Mayfield
At 01:54 PM 1/13/2008, kh6ty wrote:

You obviously do not understand reproprocity principle and how it applies to
radio, Chuck, and in most cases the PropNet station is running less power
than others, or what is the point of using it to determining propagation?
Beacon stations also tend to run lower power for the same reason, so if you
can copy the Propnet station, 90% of the time it could hear you, IF it
listened.

You and I are almost the same age, so you surely must have heard the old
adage in ham radio, If you can hear'em, you can work'em. However, this is
only true if you are running as much power or ERP as the station you are
copying, and we are not talking about PropNet stations running 1 KW!

Oh, Skip.  Thank you for your very welcome feedback.  I forgot you 
always have a perfectly uniform reflecting medium between you and 
everyone else.  That is why you get perfect reciprocity all the 
time.   Well it doesn't always work that way for me.

Can we get back to technical discussions now and leave the rules 
enforcement for others?  



Re: [digitalradio] Re: Is Propnet/HF APRS legal in USA ? (was : Trouble at mill RTTY contesters war

2008-01-13 Thread Chuck Mayfield
 operator, then IMO it would be 
illegal operation of the ARS.  If the ARS is operated legally, then 
such operation would be functionally no different that a phone patch.


Jim
WA0LYK

--- In 
mailto:digitalradio%40yahoogroups.comdigitalradio@yahoogroups.com, 
Chuck Mayfield [EMAIL PROTECTED]
wrote:
 
  I certainly agree. Now, given the FCC's position, why do we
  amateurs need all the activist lawyers and lawyer-wannabes from our
  ranks sending queries to the FCC concerning practices by other
  control operators? We are all responsible for our own operations.
  Right?
 
  Chuck AA5J
 
  At 10:14 AM 1/13/2008, kh6ty wrote:
  The FCC's Bill Cross has already stated publicly, Your call sign,
  your responsibility.
  
  Skip KH6TY
 


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Re: [digitalradio] Re: Is Propnet/HF APRS legal in USA ? (was : Trouble at mill RTTY contesters war

2008-01-13 Thread Chuck Mayfield
Aw, pshaw.  I am sorry that I hurt your delicate sensitivities, 
Bill.  Get over it.  All this political and administrative bs has 
absolutely nothing to do with digitalradio.  It is one clique 
fighting with another clique.  One group is asking for clarification 
about the other group's operation.  How is that OK?

If you think that I am not allowed to express my opinion, then you 
prove my point.  However, I will not stand by without comment and get 
wet from your pissing contest.   And I will not stand by while less 
than 0.5 percent of the US amateur radio operators mucks around and 
potentially screws it up for the other 99.5 percent.  It was small 
groups of activists that got us in the incentive licensing fix, and 
it was small groups of activists that got us in the separation by 
bandwidth fix.  It will be this small group of activists that makes 
the next change happen.  I just hope the trend doesn't continue to 
worse and worse and worse.

Chuck AA5J


At 05:54 PM 1/13/2008, Bill McLaughlin wrote:

Ok, I admit it, I mandated Rick to ask questions.


Bull



But seriously, why the concern about asking for clarification? And
yes, it does seem personal.

73,

Bill N9DSJ

--- In 
mailto:digitalradio%40yahoogroups.comdigitalradio@yahoogroups.com, 
Chuck Mayfield [EMAIL PROTECTED]
wrote:
 
  At 09:57 AM 1/13/2008, Rick wrote:
  My preference would have been for those who want to operate these kinds
  of modes to request an interpretation and if the finding was not to
  their satisfaction, to petition the FCC for a rule change. They did not
  do this and now some of us have had to take action and do it in their
  place.
 
 
  So, Rick, from whom did you get your mandate to take action?
  It certainly was not me. I don't even use any of those modes,
  but I do not appreciate activists who have to take action when
  nothing is necessarily wrong. If you want to feel powerful,
  why don't you run for office or something?
 
  Don't take this personally, please.
 
  73,
  Chuck AA5J
 


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Re: [digitalradio] Is Propnet/HF APRS legal in USA ? (was : Trouble at mill RTTY contesters war with HFlink

2008-01-13 Thread Chuck Mayfield
At 04:36 PM 1/13/2008, Rick wrote:

Chuck,

Enough of your nonsense! Those of us who want integrity in the amateur
bands are doing our best. You clearly have guilt in what you are doing
and you fear that it will be an illegal activity. Your activities may be
interpreted as perfectly legal ... but they may not. You will just have
to wait until we find out.

Rick,

You have stooped to a very low personally insulting level here.
I am not doing anything.  I have no guilt whatsoever, except that I let
you spread your own brand of nonsense on too thickly before I protested.
You know very well that your questions are slanted against ALE and WINLINK.
Bonny didn't kick me off of any lists.  Are you doing this because 
she kicked you off hers?
You don't even know me.
You don't know what I do.
You don't know what I don't do.
How dare you drop that tripe on me?
Apparently you can dish it out but you cannot take it when
someone directly challenges your actions.





Re: [digitalradio] Is Propnet/HF APRS legal in USA ? (was : Trouble at mill RTTY contesters war with HFlink

2008-01-13 Thread Chuck Mayfield
Maybe it is nonsense.  It is certainly not worth any more effort on my part.
I hope you and Bonnie and the Winlink folks can one day see eye-to-eye.
I think all three groups are cliques and all are trying to have it their way.


Adios.

At 04:36 PM 1/13/2008, Rick wrote:

Chuck,

Enough of your nonsense! Those of us who want integrity in the amateur
bands are doing our best. You clearly have guilt in what you are doing
and you fear that it will be an illegal activity. Your activities may be
interpreted as perfectly legal ... but they may not. You will just have
to wait until we find out.

Chuck Mayfield wrote:
  Yes. Thank you for your very welcome explanation. I guess someone
  has to stir the pot, but I was having fun in my ignorance and bliss.
  I don't really want anyone to clarify that I can not do something
  that I have been doing, just because someone else did not understand
  the rules. The people who are at FCC now, well most of them, were
  not even there when the rules, well most of them, were written, and
  probably don't understand the English language any better than you
  and I. So why stir the pot for a specific ruling unless you have
  some sort of agenda or are on some sort of power trip?
 
  Yamamoto said I fear we have waken a sleeping giant after attacking
  Pearl Harbor. Others have said Let a sleeping dog lie. Many other
  sayings along those lines, might make one think that Don't stir the
  pot is also appropriate advice. No one has received any citations
  for the actions you question in your list to the FCC. Who are you after??
 
  73, Chuck AA5J
 


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Re: [digitalradio] Welcome to the Group

2008-01-13 Thread Chuck Mayfield
Howard,
Howdy, neighbor.
I have
* an ft857D that I have yet to use except 80m cw.
* computer-ft857  interface that I bought over the internet from BuxComm.
* a 25'-55' teletower.
* an 11 element 2 m antenna somewhere in the back yard
* the windoze version of NBEMS, and
* a toshiba laptop that should work
Problem is that none of it is hooked up yet.  If I can get it up 
soon, I would like to do some NBEMS experiments with you.
I agree that SSB would be best.
I'll see if I can get set up in the next couple of days.

Chuck AA5J



At 08:55 PM 1/13/2008, Howard Brown wrote:

Chuck,

I think it has all been said on the old topic so on to bigger and 
better things.  I think you are located within VHF range from my 
station (12 miles SW of Denton).  I am looking for stations to test 
the NBEMS package on VHF.  What are your digital interests?  This 
would need a sound card interface and it would be best if we used 
SSB but maybe FM would work too.

My VHF antenna is at 65 feet so I think I can make it over your way OK.

Howard K5HB

PS: Rick did an excellent review of an inexpensive sound card 
interface in message 25767 of this group recently.  I am using an 
old Rigblaster M8 that I got on Ebay.

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Re: [digitalradio] KANTRONICS UTU TERMINALS

2008-01-12 Thread Chuck Mayfield - AA5J
Hi Michael,
I used one of those many years ago with first a Commodore Pet and then 
an Osborne One.  My recollection is that the unit operates with any 
RS-232 terminal program and interfaces through the serial port.   Don't 
think it takes any special software.

Hope this helps.
73, Chuck - AA5J

Michael Mihailovic wrote:

 Hi i am new to this group and since joining learnt a lot great group.
 I need some help here i was given a kantronics universal terminal unit
 or the utu i am wondering has anyone used one i need some type of
 software to run it anyone got any ideas.
 Any help is appreciated.
 Thankyou
 Mike
 VK2OZ.

 _


Re: [digitalradio] Re: Pactor on 30 M

2008-01-06 Thread Chuck Mayfield
Try:  http://www.w1khj.com/NBEMS

CHUCK AA5J

At 01:02 PM 1/6/2008, Nick wrote:

Hello Haward,

Happy New Year!

Sorry, http://www.w1khj/NBEMShttp://www.w1khj/NBEMS is not a working link.

Server not found
Firefox can't find the server at www.w1khj.com 

73!

Sunday, January 06, 2008, 19:50:52, you wrote:

k Sent this email this morning:

k Good morning Charles,

k It is 12:26 PM on Sunday January 6, and you transmitted, calling to connect
k with WG3G on 10.138 in Pactor 1, over top of an ongoing test of the
k NarrowBand Emergency Messaging System that had been going on for half an
k hour. What we want to know is your boat's position at 12:20 PM on Sunday,
k January 6, or if you were in Patchogue NY, so we can figure out why you may
k not have seen any activity on the frequency before transmitting for WG3G.
k Your website says you do not have a cruising boat yet, so we don't know
k where you might have been. You were a solid S7 here in South Carolina. One
k of the stations also on the air is not too far away, in Fredonia, NY.

k We understand that accidents happen, but with six stations sharing the
k frequency, it is unlikely that you could not have copied any of them,
k especially since I copied you perfectly.

k Attached is a screen capture of the incident. Your signal is 
centered on the
k diamond and if you look hard you can see the PSK63 signal you covered up.

k We will be testing the NarrowBand Emergency Messaging System around this
k frequency in the coming days, so the frequency will often be occupied.

k You write on your web page that the hamming bug has bitten you. Since you
k already work Pactor, maybe you would like to participate in the test of the
k NBEMS. If so to to http://www.w1khj/NBEMShttp://www.w1khj/NBEMS 
for information and a link to
k download the software.

k We are looking forward to your helping us understand how this collision
k happened.

k 73, Skip KH6TY

--
Best regards,
Nick mailto:[EMAIL PROTECTED]

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Re: [digitalradio] Re: Pactor on 30 M

2008-01-06 Thread Chuck Mayfield
Yes, Skip.  My bad.  You are correct except for the . at the end of 
the link vbg
Sorry for the qrm...  that is little QRM, like psk31 is

73 Chuck   AA5J

 
  At 01:02 PM 1/6/2008, Nick wrote:
 
 Hello Haward,
 
 Happy New Year!
 
 Sorry, 
 http://www.w1khj/NBEMShttp://www.w1khj/NBEMShttp://www.w1khj/NBEMS 
 is not a working
 link.
 
 Server not found
 Firefox can't find the server at www.w1khj.com 
 
 73!
 
 Sunday, January 06, 2008, 19:50:52, you wrote:
 
 k Sent this email this morning:
 
 k Good morning Charles,
 
 k It is 12:26 PM on Sunday January 6, and you transmitted, calling to
 connect
 k with WG3G on 10.138 in Pactor 1, over top of an ongoing test of the
 k NarrowBand Emergency Messaging System that had been going on for half
 an
 k hour. What we want to know is your boat's position at 12:20 PM on
 Sunday,
 k January 6, or if you were in Patchogue NY, so we can figure out why you
 may
 k not have seen any activity on the frequency before transmitting for
 WG3G.
 k Your website says you do not have a cruising boat yet, so we don't know
 k where you might have been. You were a solid S7 here in South Carolina.
 One
 k of the stations also on the air is not too far away, in Fredonia, NY.
 
 k We understand that accidents happen, but with six stations sharing the
 k frequency, it is unlikely that you could not have copied any of them,
 k especially since I copied you perfectly.
 
 k Attached is a screen capture of the incident. Your signal is
 centered on the
 k diamond and if you look hard you can see the PSK63 signal you covered
 up.
 
 k We will be testing the NarrowBand Emergency Messaging System around
 this
 k frequency in the coming days, so the frequency will often be occupied.
 
 k You write on your web page that the hamming bug has bitten you. Since
 you
 k already work Pactor, maybe you would like to participate in the test of
 the
 k NBEMS. If so to to 
 http://www.w1khj/NBEMShttp://www.w1khj/NBEMShttp://www.w1khj/NBEMS
 for information and a link to
 k download the software.
 
 k We are looking forward to your helping us understand how this collision
 k happened.
 
 k 73, Skip KH6TY
 
 --
 Best regards,
 Nick mailto:[EMAIL PROTECTED]
 
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--

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Re: [digitalradio] Encomm error loading CD

2007-10-28 Thread Chuck Mayfield
Did you verify the MD5SUM on the .iso file?  I would expect a bad download.
It may be a pain, but I would suggest you download again if the 
MD5SUM does not compare.


Best regards,
Chuck  Mayfield

Success is the ability to go from failure to failure without losing 
your enthusiasm.
~ Sir Winston Churchill

  At 03:22 PM 10/28/2007, Dave 'Doc' Corio wrote:

 Problem is, I can't get to the desktop. Mine never completes 
 the boot process.

Tnx anyway es 73
Dave KB3MOW


Chuck - AA5J wrote:

I did not run into that exact situation, but after installing, there
were two icons on the desktop that had links that were broken.
Operating on memory, one was fldigi and the other was help. The
problem was reported as ... not found in /root. Both were in
directories within /root. You can fix that by right clicking the
icon in question and editing to the correct location.

73,
Chuck - AA5JAt 11:49 AM 10/28/2007, Dave wrote:

 Has anyone else come across the following error when loading Encomm
 from the CD, or have any idea of a fix for it? I downloaded the .iso
 file twice and burned two separate CD's with the same results from each
 
 Error, cannot find Puppy on 'cd' boot media.
 PUPMODE=1 PDEV1=
 Exited to initial-ramdisk(initramfs)commandline...
 (the Linux-guru can now debug. 'e3' editor is available)
 /bin/sh: can't access tty; job control turned off
 
 #_
 
 Tnx for any help
 Dave KB3MOW
 
 
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Re: [digitalradio] A tad off-topic - Excess coax

2007-10-28 Thread Chuck Mayfield
If it were my station, I would wrap it around a 3 to 4 inch form and 
lay it behind the operating table.  That would further limit RF noise 
and would do no harm to SWR.


Best regards,
Chuck  Mayfield

Neither a lofty degree of intelligence nor imagination nor both 
together go to the making of genius. Love, love, love, that is the 
soul of genius.
~ Wolfgang Amadeus Mozart

  At 11:45 AM 10/28/2007, Dave wrote:

Just put up a coax-fed Windom antenna and have about 15-20 feet of
excess coax. I'd prefer to keep the overall length of the coax, just
not sure if coiling it or laying it out flat would be better. I know
the older Windoms needed a tight coil of coax near the antenna, but the
1:1 balun in this one should negate that.

Any ideas on which might be better?

Tnx es 73
Dave
KB3MOW


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Re: [digitalradio] A tad off-topic - Excess coax

2007-10-28 Thread Chuck Mayfield

Very little. It is a fairly broadband 1:1 transformer at HF frequencies and
it forces the currents in the center conductor and shield to be equal.
The amount of power lost in such a choke balun is very small compared to
the power delivered to the load. See The ARRL Antenna Book 21, 26-21

73, de AA5J
At 06:02 PM 10/28/2007, Dave 'Doc' Corio wrote:

 Hi, Chuck. Since that is just about the exact dimension for a 
 choke balun from the original Windom design, would it have any 
 effect on the impedance? I suppose I could just wrap it up and see 
 for myself, but thought I should at least be nice enoough to 
 respond, since you took the time to answer my post.

Tnx!
Dave KB3MOW


Chuck Mayfield wrote:

If it were my station, I would wrap it around a 3 to 4 inch form and
lay it behind the operating table. That would further limit RF noise
and would do no harm to SWR.

Best regards,
Chuck Mayfield

Neither a lofty degree of intelligence nor imagination nor both
together go to the making of genius. Love, love, love, that is the
soul of genius.
~ Wolfgang Amadeus Mozart

At 11:45 AM 10/28/2007, Dave wrote:

 Just put up a coax-fed Windom antenna and have about 15-20 feet of
 excess coax. I'd prefer to keep the overall length of the coax, just
 not sure if coiling it or laying it out flat would be better. I know
 the older Windoms needed a tight coil of coax near the antenna, but the
 1:1 balun in this one should negate that.
 
 Any ideas on which might be better?
 
 Tnx es 73
 Dave
 KB3MOW
 
 
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 10/27/2007 11:02 AM





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Re: [digitalradio] Need to Expand the HF Auto Band Segments

2007-10-27 Thread Chuck Mayfield
I don't think 10% of each HF ham band is at all 
reasonable.  Perhaps 10% of each data b
and segment would be more reasonable.  Your suggestion for automatic 
sub bands would take an unreasonably large part of most data sub bands.
see my notes below in [brackets]]

73,
Chuck  Mayfield - AA5J

But keep up working on it Bonnie... since
Great works are performed, not by strength, but by perseverance.
~ Samuel Johnson


At 10:57 PM 10/16/2007, expeditionradio wrote:
//snip//
A reasonable suggestion is that automatic sub bands be approximately
10% of each HF ham band. In other words, if an HF band is 350kHz wide,
then at least 35kHz of it should be available as an automatic sub band
for standard 3kHz bandwidth signals.
//snip//
Here are some suggested expanded frequency ranges
for HF automatic band segments.
1805-1815 Worldwide
1990-2000 North America [20/200Khz = 10%]
3560-3610 North America
3590-3630 Worldwide [70/100Khz = 70%]
7100-7125kHz North America
7100-7110kHz Worldwide (in the new international band)
7035-7045kHz Worldwide  [35/125 = 28%
10140-10150 Worldwide [10/50 = 20%]
14085-14125kHz Worldwide (n 14099.5-14100.5 IARU beacon 
net)  [40/140 = 26.7%]
18100-18109.5kHz Worldwide  [ 9.5/42 = 22.6%]
21090-21135kHz Worldwide  [ 45/200 = 22.5%]
24920-24929.5kHz Worldwide   [ 9.5/40 = 23.75%]
28100-28199.5kHz Worldwide[ 99.5/300 = 33.17%]



Re: [digitalradio] Re: Need KAM Plus manual

2007-10-25 Thread Chuck Mayfield


At 02:13 PM 10/11/2007, n6vl wrote:
I was successful after calling Kantronics. The tech support guy
referred me to the mods.dk web site. I was able to get scanned PDFs
for a small donation.

73,

Steve N6VL




Steve,
I also have a KAM Plus with no manual.  I would be eternally grateful 
if you would forward a copy of the PDF.
Barring that, could you give me the URL to the mods.dk web site?

73,
Chuck, AA5J



Re: [digitalradio] Re: FCC and the unattended ALE/PACTOR lepers

2007-09-23 Thread Chuck Mayfield
Folks,
[mounting soapbox] when I was young, say 45 years ago, my brothers 
and I would be arguing.
One would say Dad, so and so is doing [whatever].
Dad would reply, Do you guys REALLY want me to come in there?

Look.  Government toleration of ham radio is good.
Government regulation of ham radio is ok.
Government over-regulation of ham radio is not so good.
Do we REALLY want the Government to CONTROL ham radio?

It is a HOBBY, after all.  sigh

Relax. Enjoy the hobby.
[dismounting soap box]

73,
Chuck - AA5J



Re: [digitalradio] Ham radio today and its roots. 'Hobby' was not top dog in the listing

2007-09-23 Thread Chuck Mayfield
At 02:04 PM 9/23/2007, WD8ARZ Comcast wrote:

Ham radio today is no doubt 'different' today than it was in the past.

But the past is our history.

Wasn't to many years ago that the purpose of ham radio had a listing in the
FCC rules.

Hobby wasn't the top one listed ..

73 from Bill - WD8ARZ

HEE HEE.  Yes that is right, Bill.  However, YMMV.

According to http://www2.arrl.org/news/features/2006/04/28/1/, and I quote:

Dave Bushong, KZ1O, believes that Amateur Radio is not just a single 
hobby or interest; it is comprised of many facets. Putting his 
beliefs where his Web is, Dave built the 
http://www.99hobbies.com/Ham Radio is 99 Hobbies Web site to show 
how diverse Amateur Radio is. The purpose of demonstrating ham 
radio's diversity is to encourage hams to try something new.

73, Chuck - AA6J [back to the radio room]




Re: [digitalradio] ARRL wake up ......

2007-04-28 Thread Chuck Mayfield
Bruce,
You might  want to post your rant to THE LEAGUE. You are preaching 
mostly to the choir here. HI HI

Chuck  AA5J

At 11:16 PM 4/27/2007, bruce mallon wrote:

OK

RM-11306 is on the back burner for now what will the
ARRL do next ?

Here is what they SHOULD do ...

ASK with a list of questions what MEMBERS want to do.


//yada yada snipped//

Bruce WA4GCH
Life Member for 30 years
on 6 since 1966



Re: [digitalradio] ADDITIONAL TIPS FOR USING JT65 IN WSJT VERSION 5.9.2

2007-04-06 Thread Chuck Mayfield
Try http://physics.princeton.edu/pulsar/K1JT/Documentation.htm

73, Chuck, AA5J

At 03:41 PM 4/6/2007, Jose A. Amador wrote:

  * TUTORIAL. Study the new tutorial at
  
 http://pulsar.princeton.edu/~joe/K1JT/Tutorial_590.txthttp://pulsar.princeton.edu/~joe/K1JT/Tutorial_590.txt

Got a 404 error on this link. Can someone tell the right one if not
already outdated ?

73,

Jose, CO2JA

__

V Conferencia Internacional de Energía 
Renovable, Ahorro de Energía y Educación Energética.
22 al 25 de mayo de 2007
Palacio de las Convenciones, Ciudad de la Habana, Cuba
http://www.cujae.edu.cu/eventos/cierhttp://www.cujae.edu.cu/eventos/cier

Participe en Universidad 2008.
11 al 15 de febrero del 2008.
Palacio de las Convenciones, Ciudad de la Habana, Cuba
http://www.universidad2008.cuhttp://www.universidad2008.cu




[digitalradio] Politics be gone

2007-03-26 Thread Chuck Mayfield
OK! I have come up with a way to ignore all this spam about politics, 
including; ARRL and FCC.
Rule: if header contains [digitalradio] And body contains (ARRL OR 
FCC) then delete_message.

Hopefully, I will not miss those messages that actually pertain to 
digitalradio.

73, Chuck AA5J



Re: [digitalradio] legal Mode guidelines

2007-03-18 Thread Chuck Mayfield
OK this is starting to look like character assassination.  Please 
excuse me while I still have my character
73, Chuck AA5J

At 01:12 PM 3/18/2007, kv9u wrote:

Bruce,

You have to understand that John and his group have (had?), very
different agendas than most hams, and that includes digitally oriented
hams. Hopefully, he is one of the few U.S. hams who publicly recommend
deliberately and knowingly violating Part 97 rules.

It seems to me that the most reasonable thing to do, when you do not
agree with the current rules, is to petition the FCC to have the rules
changed.

But you may expect a significant backlash if your requests are too
extreme. John's group also recommended to the ARRL Board of Directors that:

If bandwidth limits are required above 148 MHz, we recommend a 200 kHz
limit up to 225 MHz, 10 MHz limit up to 1300 MHz  a 45 MHz limit up
to 5,925 ... and no limit above 10,000 MHz.

http://www.conmicro.cx/~jmaynard/arrlhsmm.pdfhttp://www.conmicro.cx/~jmaynard/arrlhsmm.pdf

Needless to say, this may be part of the reason that the HSMM Working
Group was dissolved by the ARRL board. They also supported encryption on
amateur radio frequencies above 50 MHz.

http://www.qsl.net/kb9mwr/projects/wireless/hsmm.htmlhttp://www.qsl.net/kb9mwr/projects/wireless/hsmm.html

I don't feel that I am being unfair to say that these are things that
the overwhelming majority of hams would strongly oppose here in the U.S.

73,

Rick, KV9U

bruce mallon wrote:
  This is from the same guys that want to distroy 6
  meters with 200 khz wide signals?
 
  Nice very nice .
 
 
  --- John Champa mailto:k8ocl%40hotmail.com[EMAIL PROTECTED] wrote:
 
 
  Rod,
 
  I have NEVER heard of any Amateur being fined by the
  FCC
  for experimenting with a new mode...so what serious
  trouble?
  Radio experimenting is one of the reasons our
  service was established!
  Wouldn't that be just a bit counter-productive to be
  so heavy handed?
 
  I agree with LA4VNA. We have too many punk amateur
  barracks lawyers
  trying to muck around with the few of us still left
  trying to develop new
  technology. They're always writing That's illegal
  while they just sit on
  their fat b doing NOTHING else but trying to
  find something in the
  regs prohibiting everything new that comes down the
  road.
 
  Such folks are a cancer in what is otherwise a
  wonderful avocation!
 
  73,
  John
  K8OCL
 
 


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3/17/2007 12:33 PM



Re: [digitalradio] Re: What's with Boulder?

2007-03-12 Thread Chuck Mayfield
Aha!  You said it.  I looked up the WWV Time Codes at 
http://tf.nist.gov/stations/wwvtimecode.htm
and it shows DST indicator #2 and DST indicator #1 as part of the 
code stream.  When I used
to build my own LED readout station clock that used WWVB time codes, 
those bits were not there.
Hi Hi  (That was in 1974, if I remember correctly).

73, Chuck/AA5J
EOT

At 09:43 PM 3/11/2007, jgorman01 wrote:

My atomic clock changed right on time. I would have to look at the
manual, but the clock itself may have the software for DST. However,
WWV/B would have to put out a bit that says DST for the clock to have
known to change.

My clock does have time zone settings incorporated into the software.
I had to set that up initially.

Jim
WA0LYK

--- In 
mailto:digitalradio%40yahoogroups.comdigitalradio@yahoogroups.com, 
Chuck Mayfield [EMAIL PROTECTED]
wrote:
 
  Wait! WWV and WWVB transmit UTC time codes. There is absolutely no
  way for either station to 'know' in which time zone your atomic clock
  is located. So  How could they correct time for DST???
 
  Enlighten me please
 
  73, Chuck/AA5J
 
  At 09:00 PM 3/11/2007, Les Warriner wrote:
 
  Whoops. Yes, they do correct time for DST and standard time. My
  clocks, atomic clock controlled, changed at 1 AM EDT by gaining an
  hour. My UTC clock did not change - thankfully!!!
  
  At 04:45 PM 3/11/2007, you wrote:
  
  Hello There,
  
  WWV has always gone by UTC.
  UTC has no Daylight Savings Time period.
  They have leap seconds once in awhile.
  
  73 Gary WB6BNE
  
  - Original Message -
  From: mailto:[EMAIL PROTECTED]Walt DuBose
  To: 
 mailto:digitalradio@yahoogroups.commailto:digitalradio%40yahoogroups.comdigitalradio@yahoogroups.com
  Sent: Sunday, March 11, 2007 11:09 AM
  Subject: Re: [digitalradio] What's with Boulder?
  Andrew O'Brien wrote:
Hmm, not really ham radio related but my atomic clock just leap
forward an hour at 11.30PM Eastern Time (USA). Did WWV not have the
patience to wait until the official date and time ?
   
  It changes at sometime after midnight UCT.
  Walt/K5YFW
  
  No virus found in this incoming message.
  Checked by AVG Free Edition.
  Version: 7.5.446 / Virus Database: 268.18.8/718 - Release Date:
  3/11/2007 9:27 AM
 





Re: [digitalradio] What's with Boulder?

2007-03-11 Thread Chuck Mayfield
Wait!  WWV and WWVB transmit UTC time codes.  There is absolutely no 
way for either station to 'know' in which time zone your atomic clock 
is located.   So  How could they correct time for DST???

Enlighten me please

73, Chuck/AA5J

At 09:00 PM 3/11/2007, Les Warriner wrote:

Whoops.  Yes, they do correct time for DST and standard time.  My 
clocks, atomic clock controlled, changed at 1 AM EDT by gaining an 
hour.  My UTC clock did not change - thankfully!!!

At 04:45 PM 3/11/2007, you wrote:

Hello There,

WWV has always gone by UTC.
UTC has no Daylight Savings Time period.
They have leap seconds once in awhile.

73 Gary WB6BNE

- Original Message -
From: mailto:[EMAIL PROTECTED]Walt DuBose
To: mailto:digitalradio@yahoogroups.comdigitalradio@yahoogroups.com
Sent: Sunday, March 11, 2007 11:09 AM
Subject: Re: [digitalradio] What's with Boulder?
Andrew O'Brien wrote:
  Hmm, not really ham radio related but my atomic clock just leap
  forward an hour at 11.30PM Eastern Time (USA). Did WWV not have the
  patience to wait until the official date and time ?
 
It changes at sometime after midnight UCT.
Walt/K5YFW

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3/11/2007 9:27 AM



Re: [digitalradio] Bad PSK signals ?

2007-03-10 Thread Chuck Mayfield
Suggestion:  Don't wait for an OO. Look up his call at QRZ.com, get 
his phone number, give him a call and talk to him about the 
problem.  The op probably does not know that he is over-driving his audio.

Chuck AA5J

At 08:00 AM 3/10/2007, Andrew O'Brien wrote:

I was watching a bad PSK31 signal on 40M this morning, an IMD of -6
and harmonic waterfall 'trails all over my 3 Khz wide display. Do
official observers ever get involved in these cases ? Seems that
friendly pink slips might be useful here .

--
Andy K3UK



Re: [digitalradio] Re: 3580kHz-3600kHz Freq Coordination Info

2007-03-09 Thread Chuck Mayfield
I don't know that you have seen this link, so 
just in case you might be able to get an idea
http://www.winlink.org/Presentations/SCAMPspec.pdf
I KNOW that I could not develop anything based on 
it, but perhaps you or someone else on this reflector can.
Chuck AA5J

At 02:43 PM 3/9/2007, Rein Couperus wrote:
What a terrible waste of intellectual resources!

Sigh

Rein EA/PA0R/P

  -Ursprüngliche Nachricht-
  Von: digitalradio@yahoogroups.com
  Gesendet: 09.03.07 18:28:28
  An: digitalradio@yahoogroups.com
  Betreff: [digitalradio] Re: 3580kHz-3600kHz  Freq Coordination Info


 
  The only known implementation was on Windows, Rein, and it was closed
  source.
 
 73,
 
  Dave, AA6YQ
 
  --- In digitalradio@yahoogroups.com, Rein Couperus [EMAIL PROTECTED] 
  wrote:
  
  
The SCAMP busy detector has been around for several years.
   
  
   Is this available for Linux? Source code? GPL?
  
   Rein EA/PA0R/P
  
 
 
 
 
 
 
  Announce your digital  presence via our DX 
 Cluster telnet://cluster.dynalias.org
 
  Our other groups:
 
  http://groups.yahoo.com/group/dxlist/
  http://groups.yahoo.com/group/themixwgroup
  http://groups.yahoo.com/group/contesting
  http://groups.yahoo.com/group/wnyar
  http://groups.yahoo.com/group/Omnibus97
 
 
  Yahoo! Groups Links
 
 
 
 

--
http://pa0r.blogspirit.com




Announce your digital  presence via our DX 
Cluster telnet://cluster.dynalias.org

Our other groups:

http://groups.yahoo.com/group/dxlist/
http://groups.yahoo.com/group/themixwgroup
http://groups.yahoo.com/group/contesting
http://groups.yahoo.com/group/wnyar
http://groups.yahoo.com/group/Omnibus97


Yahoo! Groups Links





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Re: [digitalradio] Re: 3580kHz-3600kHz Freq Coordination Info

2007-03-08 Thread Chuck Mayfield
I agree with Joe on this point.  Amateur radio has always been self 
policing.  How can we self police the Pactor operators, automatic or 
manually controlled, when even if we spend the big bucks to acquire a 
pactor modem, we can not monitor their transmissions?  We can not 
even know whether the operator is even a ham.

Regards,
Chuck AA5J

At 03:41 PM 3/8/2007, Joe Ivey wrote:

I have yet to understand why the FCC allowed automatic stations on 
the ham bands in the first place. I hate to see ham radio being used 
as an internet email service that in 99% of the case the mail is not 
related to ham radio.

I think that 99% of the ham support handling emergency traffic and 
would stay clear of any frequency that was being used for such a 
purpose. A lot of people including hams do not really understand the 
term emergency traffic. Simply put it means the threat to life, 
injury. and property. 99.99% of all emergencies are confined to a 
general local area. It very rare that one needs to send traffic from 
the west coast to the east coast or Washington DC. Ham radio serves 
a great purpose in these cases and we as operators should help out 
when we are needed. But for someone out in his boat just wanting to 
check is email should not be allowed on the ham bands.

My 2 cents worth.

Joe
W4JSI



Re: [digitalradio] Re: 3580kHz-3600kHz Freq Coordination Info

2007-03-08 Thread Chuck Mayfield
A list moderator graciously corrected me.  Therefore, I retract the 
following erroneous statement:
It appears that SCS modems can copy WL2k ARQ transmissions even 
though the listener is not an addressee..
I stand corrected.

73,
Chuck AA5J

At 04:49 PM 3/8/2007, Chuck Mayfield wrote:
Amateur radio has always been self
policing. How can we self police the Pactor operators, automatic or
manually controlled, when even if we spend the big bucks to acquire a
pactor modem, we can not monitor their transmissions? We can not
even know whether the operator is even a ham.



Re: [Bulk] [digitalradio] Re: Detecting Digital Modes [Was: Newbie to DigitalRadio - Couple of Questions]

2007-02-08 Thread Chuck Mayfield - AA5J
Doc,
Try Google.


*HOKA* Electronic - The Netherlands - HF Data Decoder and Analyzer
http://www.hoka.com/

*HOKA* Electronic, HF Data Communications Consultant, Data Analyzer and 
Decoder.
www.*hoka*.com/ - 8kCached 
http://72.14.253.104/search?q=cache:yHpNNBnayzIJ:www.hoka.com/+hokahl=enct=clnkcd=1gl=usclient=firefox-a
 
- Similar pages 
http://www.google.com/search?hl=enclient=firefox-arls=org.mozilla:en-US:officialhs=90wq=related:www.hoka.com/












Re: [digitalradio] Re: FNpsk

2007-01-30 Thread Chuck Mayfield
At 03:27 AM 1/30/2007, Rein Couperus wrote:
Everybody with an HF trx and a laptop that has a CD drive and a 
soundcard can set up a server and connect it to the internet, 
provided the trx has reasonable fequency stability
.
We are planning to include HF forwarding capability in both client and server.
The user interface of the client is Evolution (like Outlook 
(C)Microsoft Company).
You write the messages in a normal mail client, and then press the 
send button.

Can you tell me what FNpsk capability is lacking in pskmail at 
present? (Just for our long term planning...)

73,

Rein EA/PA0R/P

Windows. :-}



73,
Chuck AA5J 



Re: [digitalradio] Re: FNpsk

2007-01-30 Thread Chuck Mayfield
At 01:25 PM 1/30/2007, Rein Couperus wrote:
M$ gives you windows, Linux gives you as many desktops as you like :))

Rein

Rein,
I am certainly not a fan of M$ or Windows, but M$ Windows is used by 
a VERY large percentage of ham radio operators who use computers.
FNPsk runs directly under windows.  That does not make it good, but 
that makes it accessible to a very large percentage of ham radio operators.

Best Regards,
Chuck, AA5J 



Re: [digitalradio] US Hams Codeless Feb 23

2007-01-20 Thread Chuck Mayfield
If I remember correctly, it is a CB 10 code for What is the time of day?
Being the sarcastic old bum that I am, I sometimes responded I would 
think that anyone who could afford a CB radio could also afford a 
timepiece. The time is 8:45 and you are late.

Chuck
AA5J

At 11:22 PM 1/19/2007, John Champa wrote:

Chuck,

Guess I am no longer fully qualified as a Ham (HI).

What is a 10-36?

Tnx,
John
K8OCL

Original Message Follows
From: Chuck Mayfield mailto:clmayfield%40verizon.net[EMAIL PROTECTED]
Reply-To: mailto:digitalradio%40yahoogroups.comdigitalradio@yahoogroups.com
To: mailto:digitalradio%40yahoogroups.comdigitalradio@yahoogroups.com
Subject: Re: [digitalradio] US Hams Codeless Feb 23
Date: Fri, 19 Jan 2007 18:30:22 -0600

At 05:07 PM 1/19/2007, Radioguy wrote:

 Codeless Amateur Radio Testing Regime Appears Set to Begin February 23
Yahoo, Good Buddy. Can I get a 10-36?

Chuck AA5J


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Re: [digitalradio] US Hams Codeless Feb 23

2007-01-20 Thread Chuck Mayfield
At 01:47 PM 1/20/2007, larry allen wrote:

Hi Danny..
The problem we are having is that most of our new hams don't seem to get
on the air...
We have more hams now than ever before yet our bands are quieter than they
have ever been, since the 60's at least
Larry ve3fxq

Look at the competition.  cell phones, text messaging, video phones,
instant messaging, e-mail, skype, etc. and a lot  of it world-wide, 
and some of
it free.

73
Chuck AA5J 



Re: [digitalradio] LinLink - LinLink List

2007-01-19 Thread Chuck Mayfield
At 11:28 AM 1/19/2007, DuBose Walt Civ AETC CONS/LGCA wrote:


You can subscribe to the LinLink E-Mail list at: 
http://www.wetnet.net/mailman/listinfo/linlink/http://www.wetnet.net/mailman/listinfo/linlink/

That's good Walt.  I thought I was subscribed to that linkink list, 
but the last message I received was 10/30/2006.
That is also the last message I can find in the archives.
Is the list still active?

Chuck
AA5J 



Re: [digitalradio] PSKMail

2007-01-12 Thread Chuck Mayfield
At 12:13 PM 1/12/2007, DuBose Walt Civ AETC CONS/LGCA wrote:

For some reason I can't get the latest information on PSKMail...actually
I think the pskmail.org URL and some others are being blocked. The last
I info I have is from Rein is dated Aug 2005.

Am I correct in that PSKMail is now using PSK125 and FLDigi?

I would appreciate direct E-Mail of specs attachments on PSK125 and
FLDigi sent to mailto:k5yfw%40arrl.net[EMAIL PROTECTED] as well as 
mailto:walt.dubose%40randolph.af.mil[EMAIL PROTECTED]

Txn  73,

Walt/K5YFW
It opens for me.  Here is what I see, along with two links.
This is the pskmail.org start page.
See the links menu on the left for further options.

The pskmail.org site has been set up to support the pskmail mode by 
offering centralized services to mobile users and server operators.

Use the Userlogin page to change your data record in the pskmail 
database. When your data is in the user database you can 
-theoretically- use any pskmail server to get your mail, as the 
server will collect the data from the database via the internet if it 
does not have a local record. You need a password to log in; you can 
get it by sending a mail to thinkcow at pskmail.org.

Use of these services for ham operators is free, but you are supposed 
to buy PA0R a beer when appropriate.


here are urls to the two links:
http://pskmail.org/userlogin.html
http://pskmail.wikispaces.org/

73, Chuck AA5J 



[digitalradio] Wassup?

2007-01-05 Thread Chuck Mayfield - AA5J
Did I get bounced or something?
I received my last [digitalradio] message at 6:12pm 1/4 .

Chuck AA5J


Re: [digitalradio] Re: LOTW Olivia, not a lot !

2007-01-03 Thread Chuck Mayfield - AA5J
mulveyraa2 wrote: -- In digitalradio@yahoogroups.com 
mailto:digitalradio%40yahoogroups.com, Chuck Mayfield - AA5J



 You're not reading the error message it gave you. It says that
 Call sign, DXCC Entity and QSO date range don't match up. Note the
 and. Your submission indicates that you've held AA5J continuously
 from 1945-11-01 to the present day. Your QRZ info indicates that you
 were born in 1941, and previously held the call WD5FBQ. So unless you
 were licenced as WD5FBQ before you were 4 years old, of course it's
 going to reject your submission.

 You can't just pick random dates. Callsigns get re-used over time,
 and if you're just picking dates out of a hat, you'll interfere with
 someone who legitimately held that call at some other time. If you
 enter your data as asked, LOTW is trivial to sign up for and use.

 - Rich























You may be right, Rich, but my callsign is good at QRZ. The address 
their matches the one at FCC,
I have been an ARRL member continuously since I was first licensed.  Are 
you licensed?  Why don't you use your call sign in your signature?  
Since you seem to know all about LOTW, perhaps you can tell me why there 
is a default start date of 1945 11 01 on that form?  Also, why are there 
not instructions on that form?

Chuck AA5J




Re: [digitalradio] New to PSK31 - advice please ??

2007-01-02 Thread Chuck Mayfield - AA5J

 Adrian,
  


I googled optoisolators Ireland and Radionics Ireland has them in stock.

73, Chuck, AA5J


Re: [digitalradio] LOTW Olivia, not a lot !

2007-01-02 Thread Chuck Mayfield - AA5J
Andrew O'Brien wrote:

 I'm surprised that of all the Olivia QSOs I have logged there are only
 5 verified via LOTW




I think I can understand why.  Why does it have to be so complicated to 
get a cert with lotw?

Chuck, aa5j

PS  I am debating whether or not it is more trouble than it is worth, 
since I do not chase dx.


Re: [digitalradio] LOTW Olivia, not a lot !

2007-01-02 Thread Chuck Mayfield - AA5J
Doc,
I don't agree with your last.

CW DATA AND RTTY are allowed by Extra Class licensees 7000-7125 and by 
General
and Advanced Class licensees 7025-7125. 

Chuck, AA5J


Re: [digitalradio] LOTW Olivia, not a lot !

2007-01-02 Thread Chuck Mayfield - AA5J
You are probably right, Danny.  However, I neither know nor care what 
DXCC Entity I am in and I got the following  back from the request:

Processing file 'AA5J.tq5'

2007-01-03 03:15:49 Started processing your New Certificate Request.
2007-01-03 03:15:49 For call sign: AA5J
2007-01-03 03:15:49   For DXCC Entity: UNITED STATES OF AMERICA (291)
2007-01-03 03:15:49   For QSOs not before: 1945-11-01 00:00:00
2007-01-03 03:15:49For QSOs not after: none
2007-01-03 03:15:50 Call sign, DXCC Entity and QSO date range don't match up
2007-01-03 03:15:50 **Your certificate request contains error(s); please 
correct and resubmit.
2007-01-03 03:15:50 See http://www.arrl.org/lotw/faq.html for more information.

I suppose next I will be bounced for the 1945 start date ...

73, AA5J



Danny Douglas wrote:

 You must consider the other ops who DO use LOTW. It is so much easier than
 buying/making, filling out, mailing QSL cards. Chuck it isnt rocket
 science, and once a member, very easy to update to insure you still 
 live in
 the same place, and have the same call, every couple of years. Doesnt
 matter if its DX or not. WAS is also using LOTW and VUCC is just 
 around the
 corner. One of these days, Worked ALL Counties will probably be there too,
 and Collin county would be important in that one also. You do NOT even 
 have
 to be an ARRL member to upload (just to use valuations for your own use).

 Danny Douglas N7DC
 ex WN5QMX ET2US WA5UKR ET3USA
 SV0WPP VS6DD N7DC/YV5 G5CTB all
 DX 2-6 years each
 .
 QSL LOTW-buro- direct
 As courtesy I upload to eQSL but if you
 use that - also pls upload to LOTW
 or hard card.

 moderator [EMAIL PROTECTED] 
 mailto:digital_modes%40yahoogroups.com
 moderator http://groups.yahoo.com/group/DXandTalk 
 http://groups.yahoo.com/group/DXandTalk
 - Original Message -
 From: Chuck Mayfield - AA5J [EMAIL PROTECTED] 
 mailto:clmayfield%40verizon.net
 To: digitalradio@yahoogroups.com mailto:digitalradio%40yahoogroups.com
 Sent: Tuesday, January 02, 2007 9:16 PM
 Subject: Re: [digitalradio] LOTW Olivia, not a lot !

  Andrew O'Brien wrote:
 
   I'm surprised that of all the Olivia QSOs I have logged there are only
   5 verified via LOTW
  
  
  
 
  I think I can understand why. Why does it have to be so complicated to
  get a cert with lotw?
 
  Chuck, aa5j
 
  PS I am debating whether or not it is more trouble than it is worth,
  since I do not chase dx.
 
 
  Suggested Calling/Beaconing Frequencies:
  17M: 18103.4
  20M: Primary:14.078.4 Secondary: 14.076.4 Digital Voice: 14236
  30M Primary:10.142 Secondary 10.144
  40M Region 2: 7073 Region 1/3: 7039
  80M Primary : 3583 Secondary: 3584.5
  Announce your presence via our DX Cluster 
 telnet://cluster.dynalias.org telnet://cluster.dynalias.org
 
 
  Yahoo! Groups Links
 
 
 
 
 
  --
  No virus found in this incoming message.
  Checked by AVG Free Edition.
  Version: 7.5.432 / Virus Database: 268.16.2/613 - Release Date: 1/1/2007
 2:50 PM
 
 

 



No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.16.3/614 - Release Date: 1/2/2007 2:58 
PM
  




Re: [digitalradio] Digital havoc with devices in car

2006-12-26 Thread Chuck Mayfield - AA5J

Robert Chudek - KØRC wrote:


Chuck,
 
I will venture a guess you are using a trial version of the software 
because that is what I am hearing the voice say in the file you posted.
 
73 de Bob - KØRC in MN
 
 


- Original Message -
*From:* Chuck Mayfield - AA5J mailto:[EMAIL PROTECTED]
*To:* digitalradio@yahoogroups.com
mailto:digitalradio@yahoogroups.com
*Sent:* Tuesday, December 26, 2006 2:48 PM
*Subject:* Re: [digitalradio] Digital havoc with devices in car

I recently downloaded and installed MixW2.17. The problem I am having
is an USB audio burst that appears periodically in (apparently)
both the
received and transmitted audio approximately once each four
seconds. I
disconnected from the sound card and from the radio and recorded a
sample into a wav file. Can anyone help me with this problem? I
attached the sample, but am not sure it will accompany this message.

73, Chuck AA5J





No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.15.28/604 - Release Date: 12/26/2006 
12:23 PM
 

Thanks, Bob.  You are exactly correct!  I thought I could at least *try* 
the trial version legally, but I guess I sprung a booby trap!  Drats! 
The web page said I should try the trial version before I buy the full 
version.

Do I really want to buy Mixw

73, Chuck


Re: [digitalradio] SSB mixed with Mixw output?

2006-12-26 Thread Chuck Mayfield - AA5J
Robert Chudek - KØRC wrote:

 Chuck,
  
 Well even with the new email header, the voice is still saying 
 Trial... Trial...  ;-)
  
 73 de Bob - KØRC in MN
  
  

 - Original Message -
 *From:* Chuck Mayfield - AA5J mailto:[EMAIL PROTECTED]
 *To:* digitalradio@yahoogroups.com
 mailto:digitalradio@yahoogroups.com
 *Sent:* Tuesday, December 26, 2006 3:09 PM
 *Subject:* Re: [digitalradio] SSB mixed with Mixw output?

 Sorry all. I should have changed the subject line on my last.

 I recently downloaded and installed MixW2.17. The problem I am having
 is an USB audio burst that appears periodically in (apparently)
 both the
 received and transmitted audio approximately once each four seconds. I
 disconnected from the sound card and from the radio and recorded a
 sample into a wav file. Can anyone help me with this problem? I
 attached the sample, but am not sure it will accompany this message.

 73, Chuck AA5J

 


HEE hee I thought it was say ing trash trash trash...
  




Re: [digitalradio] Digital havoc with devices in car

2006-12-26 Thread Chuck Mayfield - AA5J
Brett Owen Rees VK2TMG wrote:

 Hi Chuck,

 The attachment worked ok here for me. The sound seems to be saying 
 'trial' in a female voice. It sounds like a piece of applications 
 software or your driver is doing this. Have you tried killing off 
 processes using task manager to see if you can isolate what is causing 
 it?

 73,
 Brett


 -- 
 ===
 Brett Rees VK2TMG
 http://lisp.homeunix.net http://lisp.homeunix.net

 



Brett,
I think it must be encoded in the Trial software somewhere.  I hope it 
will not say Full every four seconds if I buy the Full version. Hmm?
What software does everyone use for digital?

73, Chuck AA5J


[digitalradio] 10 Khz signal

2006-12-21 Thread Chuck Mayfield - AA5J
What is the signal that occupies 3990 to 4000?


Re: [digitalradio] 10 Khz signal

2006-12-21 Thread Chuck Mayfield - AA5J
Robert McGwier wrote:

 Is it heard at night? Then I am going to guess that it is digital
 radio mondial broadcast.

 Bob
 N4HY

 Chuck Mayfield - AA5J wrote:
  What is the signal that occupies 3990 to 4000?
 
 

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

 



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Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.15.26/594 - Release Date: 12/20/2006 
3:54 PM
  

Yes. it is ther now as we speak...


Re: [digitalradio] Clarification : Establishing digital calling/beacon frequencies

2006-12-21 Thread Chuck Mayfield - AA5J
It seems to me that the IARU Region 2 bandplan should at least be 
consulted as part of the subject process..
See http://www.iaru-regionii.org/Region_2_HF_Band_Plan.html.

73 de AA5J

Danny Douglas wrote:

 As to the 160 meter band, I was taken aback by your comment about 
 operating
 digital outside of 1800- 1810 bandplan. Bandplans are arbitary and 
 there is
 NO force of law in them as far as I know- and are voluntary. Now - 
 subbands
 ARE of course the mandantory rules and are the subject of last weeks 
 changes
 in separating modes. The chart, put out just last week, of US Amateur 
 Bands
 shows the 160 band with NO partition at all, and indeed over in the Key,
 says of 160:
 CW,RTTY,DATA, PHONE, IMAGE The only note of distinction in this whole
 band comments that amateurs operating from 1900-2000 khz must not cause
 harmful inteference to the radiolocation service and are afforded no
 protection from radiolocation operators

 Where did you get the information that digital MUST stay within the 
 first 10
 kc. I would say there must be something wrong with that, or the chart the
 ARRL has supplied is incorrect, but I have other charts showing the same
 thing. That would be interesting, as I have been using PSK in several
 places on the band, but never below about 1.840, for a couple of years
 without any squwak from the FCC, or anyone else.

 As to 20 meters, you are correct that the majority of RTTY appears to be
 above 14080, but I have heard it as low as 14.074 on non-contest QSOs. 
 Give
 a contest and people go wild and you hear RTTY as low as 14.010, which is
 really irritating to a CW op. Most all of the PSK I have worked (128
 countries to date) have been on 20 meters, and all of it within the
 14.069-14.073 bandwidth. The other digital modes have all been around
 14.065 - 14.070. This is the reason I was recommending the lower side of
 PSK rather than just above it. I havent called CQ on the other modes, 
 above
 the PSK area, but typically when I have answered others they are below it.
 Right now, with such poor conditions I am hearing no digital signals 
 at all
 on 20. I have worked few digital stations (other than RTTY) on 15-10 so
 dont know how those separate out. Also have not been digitally active 
 on 80
 or 40 all that much either. Mostly, I look for DX and those dont afford me
 new ones very often. The 160 meter band is an exception there, as I
 figure that new ones should be easier on PSK than SSB or even CW- but so
 far that has not been the case, for really long distance ops. I just dont
 think enough people are using the band with PSK or other new digital 
 modes.

 Your last comment:  Perhaps it would not incur the wrath of the FCC if we
 operated
  voice and then also transmitted data and fax and image in between voice
  transmissions, but do it in the voice/image part of the band?
 would appear to be exactly what we should be doing. It would keep the 
 voice
 part out of the lower piece of the band and
 place both it and the images together - and as per my above - is totally
 legal according to the charts. I was hoping that would be what we 
 would see
 on the other bands as well, but guess that is still not to be.

 Danny Douglas N7DC
 ex WN5QMX ET2US WA5UKR ET3USA
 SV0WPP VS6DD N7DC/YV5 G5CTB all
 DX 2-6 years each
 .
 QSL LOTW-buro- direct
 As courtesty I upload to eQSL but if you
 use that - also pls upload to LOTW
 or hard card.

 moderator [EMAIL PROTECTED] 
 mailto:digital_modes%40yahoogroups.com

 



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3:54 PM
  




RE: [digitalradio] digital modes and THE RADIO

2006-09-21 Thread Chuck Mayfield
At 06:41 AM 9/21/2006, you wrote:

Rick,

Please explain group delays. I am unfamilar with that term in 
reference to transmitting equipment.

Walt/K5YFW
I am not Rick, but you can find the definition here: 
http://en.wikipedia.org/wiki/Group_delay


Regards,
Chuck AA5J 



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Re: [digitalradio] Re: Can You Call Another Ham On The Air? Right Now?

2006-08-26 Thread Chuck Mayfield
So what is techincal about this thread at this point.  Dave, you are 
wasting bandwidth here.
Can we get back on topic, please?

Chuck, AA5J

At 11:22 PM 8/25/2006, you wrote:

Amateur radio began with the randomness of chance QSOs -- you
remember CQ, don't you? Its not exactly honest to claim that
amateur radio is devolving from the style with which it began, has
used during all of its existence, and remains dominant to this day.

No one is saying you can't use ALE if you want to Bonnie, but don't
imply that anyone who doesn't is a dope.

73,

Dave, AA6YQ

--- In 
mailto:digitalradio%40yahoogroups.comdigitalradio@yahoogroups.com, 
expeditionradio
[EMAIL PROTECTED] wrote:
 
  Have you ever had a visitor to your ham shack... and they ask if you
  can call up another ham who they know?
 
  You sit there in front of a wall of impressive radio equipment and
  electronics...
 
  And you might be a little embarassed to answer... Well, I can't
  really just call them up like the telephone. or It is not that
easy.
 
  Can you call another ham on the air? Right now? How would you
actually
  go about calling another ham on the air?
 
  Have we lost sight of the most basic thing, about communication, to
be
  able to signal another ham that you want to talk with them?
 
  Has ham radio devolved into only randomness of chance QSOs?
 
  Bonnie KQ6XA
 


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Regards,
ChuckM mailto:[EMAIL PROTECTED]
-- 
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http://freepages.genealogy.rootsweb.com/~mayfield




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Re: [digitalradio] Re: Can You Call Another Ham On The Air? Right Now?

2006-08-26 Thread Chuck Mayfield
And I suppose that nit-picking every statement made by others on the reflector
is to be considered responsible behavior?  GIVE ME A BREAK!

73,

Chuck

At 01:19 PM 8/26/2006, you wrote:

Bonnie claimed that amateur radio had devolved to random QSOs. Since
amateur radio began with random QSOs and random QSOs remain a
significant component of amateur communications today, that claim is
false. If the original post was on topic, then correcting its factual
errors must also be on topic.

The premises and context on which we make technical decisions are
critical. Leaving errors and misrepresentations unchallenged would be
irresponsible.

73,

Dave, AA6YQ

--- In 
mailto:digitalradio%40yahoogroups.comdigitalradio@yahoogroups.com, 
Chuck Mayfield [EMAIL PROTECTED]
wrote:
 
  So what is techincal about this thread at this point. Dave, you
are
  wasting bandwidth here.
  Can we get back on topic, please?
 
  Chuck, AA5J
 
  At 11:22 PM 8/25/2006, you wrote:
 
  Amateur radio began with the randomness of chance QSOs -- you
  remember CQ, don't you? Its not exactly honest to claim that
  amateur radio is devolving from the style with which it began, has
  used during all of its existence, and remains dominant to this day.
  
  No one is saying you can't use ALE if you want to Bonnie, but don't
  imply that anyone who doesn't is a dope.
  
  73,
  
  Dave, AA6YQ
  
  --- In
  mailto:digitalradio%
40yahoogroups.commailto:digitalradio%40yahoogroups.comdigitalradio@yahoogroups.com,
 

  expeditionradio
  expeditionradio@ wrote:
   
Have you ever had a visitor to your ham shack... and they ask
if you
can call up another ham who they know?
   
You sit there in front of a wall of impressive radio equipment
and
electronics...
   
And you might be a little embarassed to answer... Well, I can't
really just call them up like the telephone. or It is not that
  easy.
   
Can you call another ham on the air? Right now? How would you
  actually
go about calling another ham on the air?
   
Have we lost sight of the most basic thing, about
communication, to
  be
able to signal another ham that you want to talk with them?
   
Has ham radio devolved into only randomness of chance QSOs?
   
Bonnie KQ6XA
   
  
  
  No virus found in this incoming message.
  Checked by AVG Free Edition.
  Version: 7.1.405 / Virus Database: 268.11.6/428 - Release Date:
8/25/2006
 
  Regards,
  ChuckM mailto:[EMAIL PROTECTED]
  --
  
 http://worldconnect.rootsweb.com/~clmayfieldhttp://worldconnect.rootsweb.com/~clmayfield
  http://freepages.genealogy.rootsweb.com/~mayfield
 



Regards,
ChuckM mailto:[EMAIL PROTECTED]
-- 
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Re: [digitalradio] Re: Best Mode for QRP?

2006-07-25 Thread Chuck Mayfield
At 08:59 AM 7/25/2006, you wrote:
Anyway where did that word [robustness] come from and when was it frist to
used?

Robust

Insensitivity of a process output to the variation of the process inputs.

Robust Process

A robust process is one that is operating at 6 sigma and is therefore 
resistant to defects. Robust processes exhibit very good short-term 
process capability (high short-term Z values) and a small Z shift value.

Robustness

The characteristic of the process output or response to be 
insensitive to the variation of the inputs. Setting the process 
targets using the process interactions increases the likelyhood of 
the process exhibiting robustness.

73,
Chuck AA5J  



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Re: [digitalradio] Re: Army MARS Implementing Winlink

2006-03-04 Thread Chuck Mayfield
At 07:07 AM 3/4/2006, Rein wrote:
The only thing you have to do to allow PSKmail access is to open WINLINK
for POP3. By the way, PSKmail works also with your own ISP,  so it
actually does not need WINLINK. You could use any Gmail account for
that, provided it is properly spam filtered.

I am not aware WINLINK folks are working on PSKmail access; they have
not contacted me.
73,
EA/PA0R/P - via pskmail server SM0RWO at 10.148 MHz -


Oh.  Maybe I was mistaken about it being PSKmail access.  (That has 
been more than 20 minutes ago :-)). It was some sort of soundcard access.
WINLINK already has POP3 access.  I bought a KAM PLUS radio modem and 
logged in to WINLINK 2000, using PACTOR 1.
Once I did that, I was issued a WINLINK address.  I no longer have 
that access, as for some reason, I can not get the modem to 
initialize any more.
However, my email address (if I remember correctly) was 
[EMAIL PROTECTED]  Don't remember if I could send mail from that 
address via POP3,
but I could certainly receive mail.

Thanks for the reply.


Regards,
ChuckM   - AA5J



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Re: [digitalradio] Re: ARRLWeb: Army MARS Implementing Winlink 2000 with Airmail Network

2006-03-03 Thread Chuck Mayfield
At 12:47 PM 3/3/2006, Tim wrote:
N6CRR,

I agree with you.

tim ab0wr

On Thursday 02 March 2006 23:15, N6CRR wrote:

//snip//
  Actually, I think is is a rather good development.
//snip//

I agree with you and Tim.  I also think WINLINK and WINLINK 2000 are 
good for amateur radio.  Maybe not for me, right now, because I can 
not afford to buy an expensive proprietary modem, but the WINLINK 
2000 folks are reported to be working on PSKMAIL client access to 
WINLINK 2000, which would open up use of the system to anyone with a 
radio and computer.   I can not visualize a better network to handle 
limited amounts of EMCOMM at reasonable speeds that can be accessed 
by anyone anywhere worldwide with a transceiver and computer with 
sound card.   Can anyone else?   If so, why has it not been at least 
mentioned on this reflector?


Regards,
ChuckM - AA5J mailto:[EMAIL PROTECTED]




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Re: [digitalradio] 160M DIGI OPS.....do as we say, not what we do

2006-02-28 Thread Chuck Mayfield
He who tries to inflict political statements on amateur radio is a DAMN FOOL.

73,
Chuck, AA5J

At 02:26 PM 2/26/2006, you wrote:
Its because the ARRL has gone nuts, like Bush.

73 de WB4M
Buddy


Regards,
ChuckM mailto:[EMAIL PROTECTED]
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Re: [digitalradio] Re: NTS and traffic handling and digital

2006-02-27 Thread Chuck Mayfield

Greetings,

As one who has been inactive in amateur radio emergency 
communications for several years, I heartily endorse the use of the 
Winlink system for EMCOMM.  The reasons are as follows:
Winlink 2000 tries to have 24/7 availability.  And mostly succeeds, 
through the use of Automatic / Semi-Automatic (call it what you will) 
responders, we are able to connect to the world from anywhere at 
any time, if we have the capability to connect to the Winlink 2000 
network.  They have stations that monitor most (all ?) bands that 
will let us get through under almost all conditions.  From my 
viewpoint, the important thing is communications.  If necessary, we 
can send messages to the control operators theirselves with 
instructions to connect a particular telephone number, etc. and I AM 
SURE they will carry out the task to get the emergency message 
through.  I have been inactive in NTS for several years, however in 
the several emergency situations I have been through, I would have 
been very happy to have a system equivalent to the Winlink 2000.  NTS 
was typically manned by hams like me, I worked full time.  I was not 
available 247 most of the time.  In response to the tornado that 
ripped through Wichita Falls, Texas, my employer saw fit to let me 
off for one day to support emergency communications, but for the most 
part, I was only available for the evening NTS nets.  I started the 
DFW Traffic Net on 146.88 and the Texas Slow speed CW net.  Served as 
one of the DFW representatives to the Texas Traffic net, RN5 Liaison 
and CAN Liasion.  We handled almost exclusively personal message, 
some 3rd party and some ham to others, except during 
emergencies.  But, when the chips were down, we had the capability to 
pass message traffic that mattered.  Whether we use HF, VHF, 
UHF,  Satellite, or magic, the key ingredient to emergency 
capabilities is training.  Untrained hams are part of the 
problem.  Trained hams are part of the solution.


Regards,
ChuckM  aa5j mailto:[EMAIL PROTECTED]




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Re: [digitalradio] Re: Digital TV (off topic)

2006-01-28 Thread Chuck Mayfield
As a former user of a BUD (big ugly dish) of 10' diameter and analog 
TV signals, I can say for sure that there is absolutely no comparison 
with respect to video quality between the broadcast quality (eg., 34 
dB SNR) video signal as received by the BUD and those transmitted by 
typical digital satellite providers such as Dish and DirectTV.  The 
analog signal wins hand over heels.   Now that almost all TV is sent 
digitally, the difference no longer stands out like it did back 
when.  The HDTV signals, however, are much better on either type of 
display than were the analog broadcast band quality 
pictures.   Except when the signal breaks up, for whatever reason 
into those gross digital blocks.  I have never been a fan of analog 
cable due to the p-poor quality control.  The SNR of most analog 
signals barely meets minimums at the user's TV set.

My 2 cents.

73,
Chuck, AA5J

At 12:25 PM 1/28/2006, you wrote:
I'm with Alan. When I went from analog cable to digital satellite, 
the difference has remarkable , even to old eyes.

The difference between digital satellite and HD satellite is not as 
great... still some but not as obvious. HD satellite approaches the quality
of a good DVD player. .
- Original Message -
From: mailto:[EMAIL PROTECTED]Alan NV8A
To: mailto:digitalradio@yahoogroups.comdigitalradio@yahoogroups.com
Sent: Saturday, January 28, 2006 11:27 AM
Subject: Re: [digitalradio] Re: Digital TV (off topic)

On 01/28/06 10:35 am kd4e wrote:

I like the idea of a widescreen TV and have begun looking around for
one.  For the life of me, I don't see the $5000 plasma screen
pictures (in stores) as a whole lot better than the picture I
currently get from my satellite provider (standard definition).  I
looked carefully at a 42 inch DTV and a 42 HDTV ,
 
  Why not buy a decent refurbished video projector for a fraction
  of the price?
 
with a $3000 price
diference, I could see NO difference.  The salemans said he saw a
big difference, maybe I am digitalblind.  Andy K3UK
 
  The saleman is, of course, seeing the display through his
  commission eyes.

I am not in the market for a big-screen TV, but I can even see the
difference between Standard-Definition analog and High-Definition
(1080i) digital programming on our 26 CRT TV.

Alan NV8A


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Re: [digitalradio] need cluster testers

2006-01-14 Thread Chuck Mayfield
Could not open connection to the host on port 23: Connect failed

Chuck - AA5J

At 07:30 PM 1/14/2006, you wrote:
If you have a chance to try connecting to

Telnet://cluster.dynalias.org

I would appreciate it.  I am not sure I fixed the problem but I have
at least got outgoing things such as Echolink working whereas earlier
it was not successfully port forwarded.

Andy.






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Re: [digitalradio] Re: need cluster testers

2006-01-14 Thread Chuck Mayfield
It works now.

Chuck AA5J

At 08:40 PM 1/14/2006, you wrote:
Just changed settings again...fire away

Andy K3UK

--- In digitalradio@yahoogroups.com, Chuck Mayfield
[EMAIL PROTECTED] wrote:
 
  Could not open connection to the host on port 23: Connect failed
 
  Chuck - AA5J
 
  At 07:30 PM 1/14/2006, you wrote:
  If you have a chance to try connecting to
  
  Telnet://cluster.dynalias.org
  
  I would appreciate it.  I am not sure I fixed the problem but I
have
  at least got outgoing things such as Echolink working whereas
earlier
  it was not successfully port forwarded.
  
  Andy.
  
  
  
  
  
  
  Need a Digital mode QSO? Connect to  66.24.209.78
  
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Re: [digitalradio] PCALE, Use of, With ca 1980 transceivers

2005-11-30 Thread Chuck Mayfield
I have been reading the mail here for some time.  Can a station using 
equipment that is not computer
controlled (e.g., Ten Tec Omni) use PCALE in any way?   I have been 
inactive in ham radio since the early 90's and have fallen way behind the 
power curve.

73,
Chuck AA5J 


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Re: [digitalradio] PCALE, Use of, With ca 1980 transceivers

2005-11-30 Thread Chuck Mayfield
Nope. It has no memory.  It was made in the USA, ca 1980's.

It does, however have a frequency dial, analog readout, of course.  But it 
does still work, it ain't broke,
and I am hesitant to replace it, what with my fixed retirement income and 
the price of new toys.

Chuck, AA5J


At 05:07 PM 11/30/05, you wrote:

Can it scan channels in memory ?


- Original Message -
From: Chuck Mayfield [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Wednesday, November 30, 2005 4:33 PM
Subject: Re: [digitalradio] PCALE, Use of, With ca 1980 transceivers


 I have been reading the mail here for some time.  Can a station using
  equipment that is not computer
  controlled (e.g., Ten Tec Omni) use PCALE in any way?   I have been
  inactive in ham radio since the early 90's and have fallen way behind the
  power curve.
 
  73,
  Chuck AA5J
 
 
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Re: [digitalradio] Re: The skinny on software timebombs

2005-10-26 Thread Chuck Mayfield
Hey guys!   We are downwind here.   Please stop pissing. :-)

Chuck, AA5J


At 01:52 PM 10/26/2005, you wrote:

 AA6YQ comments below

--- In digitalradio@yahoogroups.com, DuBose Walt Civ AETC CONS/LGCA
[EMAIL PROTECTED] wrote:

 snip

  I don't think any amount of signal bandwidth is going to allow
  telephone-quality voice connectivity between Boston and Sydney on
  the 10m band over the next couple of years.

Ya don't huh Dave?  How about the commercial HF DV communications
that already do this?  Well on 22 MHz, which isn't quite 10M.

 You made the outlandish claim that SDRs would enable HF
communications in the absence of propagation. I cited a 10m path
with no propagation as a counter-example. Your response that
communication is possible on a path with propagation (your 22 Mhz
example) is irrelevant to the discussion, and leaves your original
assertion unsubstantiated.


  SDRs are great, but they're just an implementation strategy. They
  aren't magic, but they do open a world of new possibilities for
  amateur experimentation. Given our limited HF frequency
  allocations, I'd rather we focused our innovation on doing more
  within the current bandwidth limitations.

Amateur experimentation?  Where have you been?  The commercial
folks are falling all over themselves doing this.  In fact, there
is a U.S. Military Standard that says all new multi-band radios
WILL BE SDR.

 You think that commercial firms and military suppliers have
exhausted all possibilities with SDR, eliminating all opportunity
for amateur experimentation? Seems unlikely, Walt.


  ...Given our limited HF frequency allocations, I'd rather we
  focused our innovation on doing more within the current bandwidth
  limitations.

So what are our current bandwidth limitations...say for data?  Part
97 says I can operate a data mode on 40M from 7.000 to 7.150 MHz
and as longas the mode doesn't run over 300 baud per carrier/tone,
I can use the whole 150 KHz available for the mode.

 Relative to 40m, §97.305(f)(3) says

Only a RTTY or data emission using a specified digital code listed
in §97.309(a) of this Part may be transmitted. The symbol rate must
not exceed 300 bauds, or for frequency-shift keying, the frequency
shift between mark and space must not exceed 1 kHz.

 If I understand this correctly, you're right: a non-FSK signal
whose symbol rate does not exceed 300 baud could consume 150 kHz of
bandwidth. Taking up half of the 40m band for one high-reliability
300 baud link seems rather antisocial. As I said, we should be
focusing on doing more with less -- not less with more.


  Look what Peter G3PLX did with 31 hz!

So tell me, in your opinion what did G3PLX do?

 Peter developed a modulation scheme that is easily implemented on
a PC and soundcard, that required no major changes to regulations or
band plans, and that enables worldwide communications with modest
transceivers, power levels, and antennas. Its uptake in the amateur
community exceeeds that of any new scheme since SSB, and it has
stimulated the development of many new soundcard-implementable
modes.


What kind of communications do you need for your 1) pleasure and 2)
to support emergency and/or disaster relief communications?  For me,
CW is just fine to meet my personal needs or perhaps MFSK16 or
MT63.  But to support the disaster communications work I volunteer
for, I need something 10-20 times faster than MT63 and just as
robust.

 Only 10-20 times faster, Walt? Why not 1000-2000 times faster?
Don't you need high-definition video with surround-sound audio?

 Its fine with me if you can convince the FCC to allocate some non-
amateur HF spectrum for wide-bandwidth amateur experimentation. My
point is that such signals are incompatible with the modest HF
allocations we have today, and should not be permitted there, the
apparent loophole in §97.305 notwithstanding.

  73,

  Dave, AA6YQ






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RE: [digitalradio] Winlink Scanning

2005-04-18 Thread Chuck Mayfield
to both the user and the spectrum to eliminate scanning so the user can
tell if a PMBO is available, or busy on an alternate scan frequency. In
the case of no scanning, it is CERTAIN he is not busy on an alternate
frequency, and if he is busy with a station you cannot detect, then when
he transmits his bursts, if you cannot hear that either, then you are
out of range, so you do not need to use up a frequency trying to connect
when there is no hope of making a connection. This keeps the frequency
free for for others to use, doesn't it?

-

Here is additional information from Steve:

---
Quote (k4cjx @ April 14 2005,08:23)
Regarding scanning. Most Winlink 2000 stations scan only two frequencies
per band. About 40 percent use more than one radio, so that they scan
only on the given band. Each scan takes approximately 2.4 to 3.0
seconds.

The purpose for scanning is to provide the user with a clear frequency
where possible.
Airmail reads the frequencies scanned by each station and ONLY CALLS for
3 seconds per frequency.

So, after calling for 3 seconds, and no connect what does Airmal do
then?


I still don't understand why there cannot be one station on each
frequency listening on a single frequency and not scanning two or three.
Please explain...

Thanks...

Skip KH6TY

--

I'd like to clearly understand this issue, so if anyone can explain,
please do so!

Additional information can be found at http://winlink.org/status/ under
CMBO traffic.

73, Skip KH6TY




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Re: [digitalradio] Re: Win Link

2005-04-13 Thread Chuck Mayfield
 coverage along the route (or so I'm
told).  A
number of members have problems hitting the net repeater in
the
weekly net.  Radio procedures are often amateurish.
 3. The WinLink concept is a noble effort but won't solve these
problems.  All of the justification of amateur radio
communications is based on the premise that all normal
communications will be wiped out.  Granted, that occasionally
happens (and makes the national news), but in the vast
majority of
incidents that occur, normal communications (phone,
Internet) are
much more effective.  Yet, the emergency communication
systems
being paid for (gov't grants) and set up in our local cities
are
usually amateur radio-based, with little attention to
supporting
communications via the Internet (which will usually be
available).
 4. With few exceptions, many of the advances in amateur digital
modes
are proprietary.  Proprietary hardware in the amateur
community
will never make it.  I applaud those who write software and
then
release it free to the amateur community (ironically, most
of the
good stuff comes from amateurs overseas).  However, almost
all of
those authors are missing the whole point of the open-source
software movement, by refusing to release source code under
the
GPL.  The software is usually released with the restriction
that
the software may only be used for amateur radio purposes.
Not
that I mind the restriction, but who in their right mind
thinks
that some commercial enterprise is going to steal some
amateur's
source code released under the GPL, and make it into a
commercial
product?  Our local RACES group tried to get the source code
to
ARESpack to no avail.  The source code for FNpack is also not
available.  It's not like there's much to a software package
like
ARESpack or FN pack;  after all, FNpack was written in Visual
BASIC, which NO professional programmer uses (and for good
reason).  If those who develop amateur radio software would
release the source code under the GPL, we'd see a *lot* of
improvement in many of these packages, and digital modes
would be
more widely used.
 
  -- Dean





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Re: [digitalradio] Re: Winlink

2005-04-12 Thread Chuck Mayfield
   of
favorable propagation between Stations B and D.  Station A does
  not
   hear
station C or D, station C does not hear stations A or B, but
   station B
hears station D.  Station D needs a detector that detects
  activity
   in the
bandwidth that will be occupied to prevent startup of the link,
  or
   station
C needs to be able to listen to the receiver output of station
D
  to
determine if the channel is occupied.
   
This is just one example.  This concern was known to the FCC in
   1995 when
PR Docket 94-59 was released.  The FCC stated:
First, the control operator of the station that is connected
to
   the
automatically controlled station must prevent the automatically
   controlled
station from causing interference.  Second, we are designating
   subbands to
which transmissions between tow automatically controlled
  stations
   are
confined.
   
So you can see from these statements there is no definition of
semi-automatic operation.  There are stations with a control
   operator, and
stations that are automatically controlled.  It is
  responsibility
   of the
control operator of the station that is connected to the
   automatically
controlled station to prevent the automatically controlled
   station from
causing interference.  Before the sound card mode explosion
  this
   was not
as big of a problem.  After the soundcard mode explosion,
   unattended
stations using PACTOR did not keep up with the times and
   incorporate the
tools necessary to allow the control operator that is connected
  to
   the
automatically controlled station to comply with the FCC rules.
  The
   FCC
also stated that  we also are confident in the ability of the
   amateur
service community to respond, as it has in the past to the
   challenge of
minimizing interference with novel technical and operational
   approaches to
the use of shared frequency bands.  You have to admit Steve,
  the
   WinLink
community has been dragged kicking and screaming in to the 21st
   century
realization that the bands and modes have changed, and no
longer
   are FSK
signals the only kids on the block.
   
73,
   
Mark N5RFX
   
   
At 05:40 AM 4/12/2005, you wrote:
   
Please explain hidden transmit effect with an example.
Please
explain how it is impossible for this also to occur with
control
operator presence.


Steve, k4cjx


--- In digitalradio@yahoogroups.com, Dave Bernstein
  [EMAIL PROTECTED]
wrote:
 
  I frequently make QSOs on contest weekends, and I am not a
  contester.
 
  Are there some contesters who call over in-progress QSOs?
  Yes.
   Does
  that make it ok for Winlink on Pactor to QRM in-progress
  QSOs?
  Absolutely not.
 
  Please explain how band planning by bandwidth will mitigate
  QRM
  caused by Winlink on Pactor due to the hidden transmitter
   effect.
 
 73,
 
 Dave, AA6YQ





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Chuck Mayfield




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Re: [digitalradio] linux

2005-02-21 Thread Chuck Mayfield


At 12:25 PM 2/21/2005, you wrote:


anyone have a link for download of the Knoppix live cd with the ham
programs built in that is in English ?

have the German version, but no fun to play with.

david/wd4kpd

Try starting it with knoppix lang=en

Regards,
Chuck - AA5J 


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