Re: [digitalradio] Has anyone looked into FPGA-based digital modes?

2008-08-06 Thread Walt DuBose
Rick W. wrote: > Hi Paul, > > Sounds like you might be getting caught up with some of your other work > and can devote some time again to digital modes:) For those who are not > aware, it was Paul's paper on ARQ concepts that lead to development of > several current uses of ham radio ARQ modes.

Re: [digitalradio] How to -- FDMDV Digital Voice Over HF

2008-06-02 Thread Walt DuBose
Relater issue. It seems that AORmight be getting out of the DV hardware business...at least on the amateur radio market. Will this help foster software DV or cause transceiver manufacturers to want to build DV into their transceivers just as some have done with PSK31? 73, Walt/K5YFW Tony wr

Re: [digitalradio] Group - Ham Software for Linux ???

2008-03-26 Thread Walt DuBose
I don't know, I'm on the [EMAIL PROTECTED] group and there are 10-40 messages a day and sometimes only 1 or 2. 73, Walt/K5YFW Jose Amador wrote: > I subscribed to linuxhams back around 1996 or so, and was very useful on > my start with linux, packet and associated stuff. > > At some point I

Re: [digitalradio] April QST page 35

2008-03-25 Thread Walt DuBose
ECM is the Linux, FlDigi/FLARQ/Syspeed suite. Walt/K5YFW Jeff Moore wrote: > Walt, > > What's ECM ??? > > Jeff Moore -- KE7ACY > Deschutes County ARES > Bend, Oregon > CN94ic > > ----- Original Message - > From: Walt DuBose > > >

Re: [digitalradio] April QST page 35

2008-03-25 Thread Walt DuBose
Please allow me to make one comment on Skip's response. I have been the "operator on duty" in a number situations with the Air Force (especially during Desert Sheild) where where we were handling Priority and Classified message traffic. Also, I have been in the same situation working in NDMS c

Re: [digitalradio] Re: Keeping NBEMS in mind

2008-03-03 Thread Walt DuBose
Skip, We do plan on using HD, NVIS antennas and data modes as long as they are faster than I can receive CW (about 15 WPM accurately. The noise level is what is so high after a hurricane...and it stays that way for 2-4 days. Walt/K5YFW kh6ty wrote: > In that case, it will be necessary to sw

Re: [digitalradio] Re: Keeping NBEMS in mind

2008-03-03 Thread Walt DuBose
Not only are EOC's that far away, but when a hurricane hits the Gulf Coast, you can have all communications interrupted for much more than 100 miles. 73, Walt/K5YFW John Bradley wrote: > on occasion less than 100 miles on VHF and sometimes as little as 30 miles > on 80M HF > > > > I disagr

Re: [digitalradio] Some thoughts on antenna polarization for emergency use

2008-03-01 Thread Walt DuBose
Moving on to mode/throughput, let me put on my Incident Commander cap... As an incident commander, I would rather have a printed/written message than one delivered verbally. If I know that you have a digital print system, I would want that and especially if you tell me its error free. The thi

[digitalradio] RTTY Standard

2008-02-11 Thread Walt DuBose
What are the current RTTY standards for baud and shift? Tnx & 73, Walk/K5YFW

Re: [digitalradio] RFI source found - sort of

2008-01-31 Thread Walt DuBose
Do you have power lines running underground and a transformer box near one of the three houses? How about a watersoftner in one of the houses. Also look for INternet monitoring of electrical power loops (meters), light poles...even if they are off during the day their keep-alive/on-off circuit

Re: [digitalradio] 30 Meter digital

2007-12-21 Thread Walt DuBose
Andrew O'Brien wrote: > I was reading the 30M Digital Group web page ( > http://www.30meterdigital.org/ ) and thinking a bit... Much of what > is posted there makes sense to many of the people that are avid users > of the digitalradio Yahoo group. The band is not crowded with > contests, there

Re: [digitalradio] Re: Winlink Can Be Reliable in Emergencies

2007-12-20 Thread Walt DuBose
on the internet for information on > comparing 6, 2, and 10 meter operation on FM and SSB as well as > horizontal vs vertical polarization, but did not come up with much. This > may be one of those things we will have to do revisit ourselves. > Recently, some anecdotal experiences wer

Re: [digitalradio] Re: Winlink Can Be Reliable in Emergencies

2007-12-19 Thread Walt DuBose
Ric, You have discovered the lost band...6M. Well for that matter 10M and 6M FM. Going back to my LMR (at the time just commercial 2-way radio) dispatch days, motorola had a formula that said two stations running 30 watts at 30 ft could operate 30 miles. 15 miles to a mobile and that was in t

Re: [digitalradio] Re: Winlink Can Be Reliable in Emergencies

2007-12-19 Thread Walt DuBose
Rud Merriam wrote: [Stuff Deleted] > I also think more use of VHF for covering NVIS distances is possible. A > nearby digi can connect at times to a Winlink Telpac node in Austin. That is > a distance of 130 or more miles. Since local use of NVIS would be to reach > the state EOC in Austin it is a

Re: [digitalradio] Re: Winlink Can Be Reliable in Emergencies

2007-12-19 Thread Walt DuBose
>>emergencies and homeland security to support whatever position they wish >>to champion. When the real thing occurs and the established >>infrastructure fails and amateur radio is needed, you can bet it will be >>with basic modes. >> >> >> >>Walt

Re: [digitalradio] Re: Winlink Can Be Reliable in Emergencies

2007-12-18 Thread Walt DuBose
Roger J. Buffington wrote: > Demetre SV1UY wrote: > > >> Well, >> >> Do we really need contests, ragchewing, voice qsos, voice nets, cw >> qsos, cw nets, on HF? Realy it all depends on what each individual >> wants to do! Your millage might vary! It's a hobby OM! Each guys >> pleasure might be so

[digitalradio] Dual Boot on Acer Aspire]

2007-12-05 Thread Walt DuBose
I have found that the Ubuntu LiveCD (6.x) loads nicely on my new Acer Aspire. The Aspire has an "C" drive of 90 GB with MS on it and a "D" Drive (named Data) with 70 GB formatted. I would like to load Ubuntu (latest) on the 70 GB part. now and eventually reformat the "C" drive with MS on it for

Re: [digitalradio] Re: The sorry state of VHF/UHF Packet

2007-11-29 Thread Walt DuBose
Bill, I also would be interested in a 9600 BAUD/BPS radio/TNC or 9600 TNC. As you, I ran a bunch of TCP/IP at 1200 baud after I ran 1200 baud packet and even a Packet BBS for several years. When I went to 19.2 KBPS, I forgot 1200 baud packet and have not returned. Since then the 19.2 KBPS gro

Re: [digitalradio] PSKmail (was Re: VHF digital setup)

2007-11-08 Thread Walt DuBose
See if this isn't what you want. http://sharon.esrac.ele.tue.nl/pub/linux/ham/pskmail/ 73, Walt/K5YFW ' jhaynesatalumni wrote: > --- In digitalradio@yahoogroups.com, Rein Couperus <[EMAIL PROTECTED]> wrote: > >>You need pskmail version 0.5.4 to enjoy PSK250 arq. >>http://pa0r.blogspirit.com >>

Re: [digitalradio] RE: QEX Article on HF Digital Propagation

2007-10-25 Thread Walt DuBose
"trick" is finding just how much of you signal you are going to give to FEC vs user data and how hard do you want to enforce ARQ. 73, Walt/K5YFW Walt DuBose wrote: > Rud Merriam wrote: > >>After a comment off list from Demeter I checked the Pactor specifications. >>It us

Re: [digitalradio] RE: QEX Article on HF Digital Propagation

2007-10-25 Thread Walt DuBose
Rud Merriam wrote: > After a comment off list from Demeter I checked the Pactor specifications. > It uses DBPSK or DQPSK. > > Why do the reports about Pactor indicate it is more robust than the QEX > article would indicate? > > > Rud Merriam K5RUD > ARES AEC Montgomery County, TX > http://The

Re: [digitalradio] Comments on Communicational and Technology from CA

2007-10-25 Thread Walt DuBose
Rud Merriam wrote: > http://www.networkworld.com/community/node/20911 > > > > Rud Merriam K5RUD > ARES AEC Montgomery County, TX > http://TheHamNetwork.net > > I am a great beliver is using WiFi under Part 97 as well as Part 15. When I need that extra little boost of power I opt for operat

Re: [digitalradio] Let me understand

2007-10-18 Thread Walt DuBose
Brian A wrote: > The digital systems being proposed for emergency use require a rig > with antenna, a computer with soundcard and functional software. Also > an operator trained with the protocol in use. Right? > > My perception of emergency situations is that just having a > rig/antenna available

Re: [digitalradio] Pskmail............... lack of stations

2007-09-10 Thread Walt DuBose
John Becker, WØJAB wrote: > If I recall this pskmail is a ARQ type program with > a TX RX timing close to Amtor and Pactor. If this is > correct, will it still work with this timing? The last > time a Amtor type linux program come out it could > not do any better then 37.6% of what a TNC did > ru

Re: [digitalradio] Pskmail............... lack of stations

2007-09-10 Thread Walt DuBose
John Bradley wrote: > > The purpose of PSkmail is to give portable and mobile users a wormhole to > the internet. > > 73, > > Rein PA0R > > > I guess, from my point of view, PSK mail won't really take off until it is > written for windows as well as Linnux. > > Despite the linnux user's best

Re: [digitalradio] Pskmail............... lack of stations

2007-09-10 Thread Walt DuBose
Rick wrote: > And down the road, there would be nothing stopping the use of the open > MIL-STD/FED-STD/STANAG protocols for higher speeds. It is possible that > even the U.S. could someday use the high speed single tone modems on > HFwith a change in FCC regulations. And maybe they really work w

Re: [digitalradio] A.L.E., VHS and Betamax

2007-06-19 Thread Walt DuBose
meone that you want to > communicate with and seems to meet your objectives. > > 73, > > Rick, KV9U > > > Walt DuBose wrote: > >>I don't see the current ALE as being anywhere close to the desires of >>amateurs...however, it IS a good start. >> >>

Re: [digitalradio] A.L.E., VHS and Betamax

2007-06-18 Thread Walt DuBose
Andrew O'Brien wrote: > I wonder if ALE for amateur radio use is in danger of demise as the > result of varying formats, similar to the old video tape format saga. > The public's demand for a method of recording video was such that one > format survived and the industry flourished. With ALE th

Re: [digitalradio] Re: HFLINK Comments to ARRL on Development of New HF Digital Comm Protocols]

2007-06-05 Thread Walt DuBose
t; Similarly, there won't be one protocol that can support every > possible application for moving bits over RF. > > 73, > > Dave, AA6YQ > > --- In digitalradio@ yahoogroups. com > <mailto:digitalradio%40yahoogroups.com>, Walt DuBose <[EMAIL PROTECTED]

Re: [digitalradio] HFLINK Comments to ARRL on Development of New HF Digital Comm Protocols]

2007-06-04 Thread Walt DuBose
You are 100% correct Rick. There have been many, including myself who have encouraged the League to seek input from its members. Some was started when the League started its little surveys on the web and now expanding by asking for technical input. So let's put on our "thinking caps" and tell

Re: [digitalradio] Re: 6 meters digital

2007-06-04 Thread Walt DuBose
bruce mallon wrote: > > > Bonnie > > NO ONE IS AFTER 6 METERS Seriously...you think not? Open it to commercial/industrial/law enforcement under shat is it Part 90? and see how fast and how many Motorola sells 100 watt radios to businesses and law enforcement. Perhaps not in NYC...but in the

Re: [digitalradio] HFLINK Comments to ARRL on Development of New HF Digital Comm Protocols]

2007-06-01 Thread Walt DuBose
ave been hesitant to comment on the ARRL seeking comments on a new HF digital protocol...but let's look again at what they ask... I. Comments from amateurs concerning development of an open-source (non-proprietary) data communications protocol suitable for use by radio amateurs over high-frequency

[digitalradio] Activity on 20M

2007-06-01 Thread Walt DuBose
Copied some nice signals on 20M this afternoon... KZ1Z on Fell Hell (good signal from Gary but no response to his CQ) K4VIG (Gary) PSK63 ~13:55 CDT (good signal) CO2IZ PSK63 ~14:05 CDT (good signal) in QSO with UT5JAB (I couldn't copy him) Transceiver ICOM IC-746PRO in USB with 2.4 kHz filter

Re: [digitalradio] Broadband Antennas for HF Scanning ALE

2007-04-05 Thread Walt DuBose
tem, Patent #7151497. > > http://www.uspto.gov/web/patents/patog/week51/OG/html/1313-3/US07151497-20061219.html > > or > > http://shorterlink.com/?1OASQ3 > > Bonnie KQ6XA > > --- In digitalradio@yahoogroups.com, Walt DuBose <[EMAIL PROTECTED]> wrote: > &

Re: [digitalradio] ALE

2007-04-04 Thread Walt DuBose
expeditionradio wrote: > Since I put up a new broadband antenna, > my ALE station is on now 24/7 > all stations are invited to link. > > Netcall: HFL > Transceiver: IC-F7000 > Antenna: Broadband Dipole > Power: 50W > Location: Near San Francisco, CA, USA > > Scanning: > 3596.0 > 3996.0 > 7065.

Re: [digitalradio] K3UK On Understanding JT65A for HF.

2007-04-04 Thread Walt DuBose
Andrew O'Brien wrote: > I'm getting many public and private emails from around the world about > JT65A. Some seem to think I'm involved with the software and how it > was to be used for HF. I'm no expert and have only about 40% of the > software mastered at the moment. I have no more clue about H

Re: [digitalradio] Re: W1CDO's station

2007-04-02 Thread Walt DuBose
expeditionradio wrote: > --- In digitalradio@yahoogroups.com, "Andrew O'Brien" > <[EMAIL PROTECTED]> wrote: > >>I worked W1CDO via JT65A, check the station info at >>http://www.qrz.com/w1cdo >> >>Wow! >> > > > > On 01 January 2007, while I was running 20W to a backpack whip antenna > Pedestri

Re: [digitalradio] FCC Announcement

2007-03-31 Thread Walt DuBose
Every few years this Arpil Fool's Day joke is added to. I remember the first time it appeared (many years ago)...it only contained the information about licenses on "serial" boxes. Hi Hi Walt/K5YFW Chris wrote: > I thought this was to be announced on April 1st.73...Bob C. WU9Q > > Andre

Re: [digitalradio] Re: Report of the ARRL Ad Hoc HF Digital Committee Dissenting

2007-03-26 Thread Walt DuBose
Dave, In the ARRL's defense, when they looked at WinLink at their Board Meeting, there was nothing else on the technology front that could do what WinLink was doing. And until PSKMail came out, there WAS NOTHING to equal WinLink. So if everyone "hates" WinLink, why don't we see hundreds of PSK

Re: [digitalradio] Re: Tearing Down USA's Data Wall (300 symbols/second)

2007-03-25 Thread Walt DuBose
what I had > thought was 3.5 kHz and now is recommending 3.0 kHz, then doesn't that > suggest there must be some kind of board policy change from several > years ago? > > 73, > > Rick, KV9U > > > Walt DuBose wrote: > >>Bonnie, >> >&

Re: [digitalradio] Re: Tearing Down USA's Data Wall (300 symbols/second)

2007-03-25 Thread Walt DuBose
But is 1471 such a large number given that there are about 500,000 active amateur radio operators in the U.S. and more than 200,000 on HF? If there were 10 times the number of responses, then the Board might listen. 73, Walt/K5YFW Dave Bernstein wrote: > Re: " Truthfully from what I hear from

Re: [digitalradio] Re: Tearing Down USA's Data Wall (300 symbols/second)

2007-03-25 Thread Walt DuBose
Bonnie, I do think the time is right; but, I think it has been for several years. I truly believe that to just say we need more bandwidth without showing why we have not case or change to change the League's position. Show then in as simple terms as possible why more bandwidth is needed or why

Re: [digitalradio] "legal Mode" guidelines

2007-03-18 Thread Walt DuBose
ling John's code won't handle more than 100 kHz > anyway! (HI) But that still is ~140 kbps. Sure beats AX.25! > And the ground wave range on 222 MHz is as good as on 2M too! > > 73, > John > K8OCL > > Original Message Follows > From: Walt DuBose

Re: [digitalradio] "legal Mode" guidelines

2007-03-18 Thread Walt DuBose
Perhaps at the time but I think the after the Board meeting in January and with a new President thinking on his own, things may be changing...I think are changing. I think we kicked them in the back side and woke up some of the OFs. John Champa wrote: > PS - Rick is correct about one item. Th

Re: [digitalradio] "legal Mode" guidelines

2007-03-18 Thread Walt DuBose
Rick, You are not in possession of all the facts. The HSMM was chartered to find out what it would take to do high speed data and other modes on frequencies above HF. The report showed what bandwidth we believe would be necessary to accomplish the task. The HSMM Working Group's Basic Charter

Re: [digitalradio] What's with Boulder?

2007-03-11 Thread Walt DuBose
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

Re: [digitalradio] Re: Bad PSK signals & linears

2007-03-11 Thread Walt DuBose
gt; > - Original Message - > *From:* Walt DuBose <mailto:[EMAIL PROTECTED]> > *To:* digitalradio@yahoogroups.com > <mailto:digitalradio@yahoogroups.com> > *Sent:* Saturday, March 10, 2007 8:10 PM > *Subject:* [digitalradio] Re: Bad PSK signa

[digitalradio] Re: Bad PSK signals & linears

2007-03-10 Thread Walt DuBose
Ok, here's a question I don't know how to answer since I don't have the experience. Let's say I am running my IC-746PRO on PSK31 and passing disaster relief traffic in and out of a disaster area. If the station I am working on the other end can't decode me and I am also having trouble decodin

[digitalradio] Audio Output

2007-02-25 Thread Walt DuBose
One of my sound cards has only one output jack and a mic and line input jacks. I would like to use a simple splitter cable on the output, one to the speakers and one to the AF output on the ACC1 plug of my IC-746. Will this likely cause a problem using Fldigi or PSKMail? Thanks & 73, Walt/K5YF

Re: [digitalradio] 144.???? Rtty

2007-02-25 Thread Walt DuBose
I found that VHF ASCII to be just as good a mode as RTTY and it provided for better print without switching between caps and numbers. I ran VHF ASCII at 300 BAUD and 1200 baudbut that was 20 years ago. Walt/K5YFW va7s wrote: > just curious anyone interested in trying vhf rtty > > > Ian

[digitalradio] Data Mode Activity

2007-02-23 Thread Walt DuBose
I'm hearing/seeing very little ( virtually no) data transmissions on 80/40/30/20M tonight (00:00-03:30). Walt/K5YFW

[digitalradio] Te-Tec Jupiter

2007-02-11 Thread Walt DuBose
Is anyone on the list using a Ten-Tec Juliter? If so, I would be interested in its performance on sound card digital modes. Tnx & 73, Walt/K5YFW

Re: [digitalradio] Re: [pskmail] Re: Live CD

2007-02-10 Thread Walt DuBose
ote: >> >>>tor 2007-02-08 klockan 21:14 -0600 skrev Walt DuBose: >>> >>> >>>>I finally got a copy of the Live CD which came from >>>>http://sharon.esrac.ele.tue.nl/pub/linux/ham/pskmail/ I couldn't get the >>>>ones

[digitalradio] Re: [pskmail] Re: Live CD

2007-02-10 Thread Walt DuBose
Per Crusefalk wrote: > tor 2007-02-08 klockan 21:14 -0600 skrev Walt DuBose: > >>I finally got a copy of the Live CD which came from >>http://sharon.esrac.ele.tue.nl/pub/linux/ham/pskmail/ I couldn't get the >>ones >>on the other mirror servers to work. >

[digitalradio] W3SZ

2007-02-08 Thread Walt DuBose
Does anyone know the E-Mail address of W3SZ? I have been looking at the DSP SDR rig control and would like to know if it will control the SDR-1000 and if so, are there any special steps other than on his W3SZ web site. Thanks & 73, Walt/K5YFW

[digitalradio] PSKMail Live CD

2007-02-08 Thread Walt DuBose
I finally got a copy of the Live CD which came from http://sharon.esrac.ele.tue.nl/pub/linux/ham/pskmail/ I couldn't get the ones on the other mirror servers to work. This is great. I now need to run it on this PC and fix the CD drive on the another PC I have, a Dell GX-150, and run it on that

Re: [digitalradio] Linux software

2007-02-06 Thread Walt DuBose
Maybe not so much in the U.S. but many in Europe and elsewhere in the world they do. Walt/K5YFW Leigh L Klotz, Jr. wrote: > I think gmfsk does mt63 so it shouldn't be hard for fldigi to do it. > Does anybody but MARS use it? > Leigh/WA5ZNU > > > > Announce your digital presence via our DX

[digitalradio] Windows Vista Ultimate

2007-02-04 Thread Walt DuBose
Please check out "windows Vista Ultimate" at http://www.degredo.net/ You may find that you want to load it. 73, Walt/K5YFW

Re: [digitalradio] Re: SDR-1000

2007-02-04 Thread Walt DuBose
That would be a good reason to install Puppy but as I understand it, Puppy is limited in that most don't consider it a "full" distribution. Walt/K5YFW kd4e wrote: >>Maybe this is a dumb question, but once someone compiles a program for >>Linux and includes the dependencies, wouldn't this be eas

Re: [digitalradio] Re: SDR-1000

2007-02-04 Thread Walt DuBose
e dependencies, wouldn't this be easily shared >>between users? >> >>Can't they then put this in their depository for that particular Linux >>distribution? >> >>Even if you don't have it in your particular universe can't you use a >>program

Re: [digitalradio] Re: SDR-1000

2007-02-04 Thread Walt DuBose
their depository for that particular Linux > distribution? > > Even if you don't have it in your particular universe can't you use a > program from the multiverse. Even converting it from one of the package > managers to another package manager that fits your Linux distribution?

Re: [digitalradio] Re: SDR-1000

2007-02-03 Thread Walt DuBose
ications. I am counting on everyone's individual talents be they programmer, builder, operator, etc to work in concert to being amateur radio into the leading edge of communications in the 21st Century and especially in the HF data transmission area. 73, Walt/K5YFW Frank Brickle wrote: >

[digitalradio] SDR-1000

2007-02-03 Thread Walt DuBose
I looked at the SDR-1000 web site thinking again about buying an SDR-1000 because the owner said it could be run with Linux. But the link (http://kb.flex-radio.com/Article.aspx?id=10104) points you to "jDttSP - Linux Console Software Downloadlink" (http://dttsp.sourceforge.net/cvs.html) "DttS

Re: [digitalradio] Re: FNpsk

2007-01-31 Thread Walt DuBose
r coding: > > Thus 1200 bps ~ 1200 wpm. > > But because of overhead, I usually round a byte up to a nice even 10 > bits so I would agree with using a slower value such as your 120 cps. > > Seem reasonable? > > 73, > > Rick, KV9U > > > > > Walt DuB

Re: [digitalradio] Re: FNpsk

2007-01-31 Thread Walt DuBose
So is 1200 baud = 1200 bps and 1200 bps (1200 / 8) = 120 cps? If so then 120 cps (120 / 6) = 20 wps X 60 sec. or 1200 WPM. That's over 1.5 pages per minute. (Page = 72-76 characters X 60 - 66 lines per page.) Walt/K5YFW Chris Jewell wrote: > Walt DuBose writes: > > How can 12

Re: [digitalradio] Re: FNpsk

2007-01-31 Thread Walt DuBose
other coding: > > Thus 1200 bps ~ 1200 wpm. > > But because of overhead, I usually round a byte up to a nice even 10 > bits so I would agree with using a slower value such as your 120 cps. > > Seem reasonable? > > 73, > > Rick, KV9U > > > > > Walt

Re: [digitalradio] PSK on AM and you get two sidebands for diversity

2007-01-31 Thread Walt DuBose
If you place different data on either sideband, its ISB which is illegal or if not now, may be in the near future. However, if detecting either sideband independently does not produce separate data streams, then its not ISB. DSB would only double the information of one sideband so you would wan

Re: [digitalradio] Re: FNpsk

2007-01-31 Thread Walt DuBose
digital SSTV programs. > > Anyone else have more real world numbers? > > 73, > > Rick, KV9U > > > Walt DuBose wrote: > > >>Here is an interesting question... >> >>What is the user throughput in WPM or CPS (what you see on your monitor) in >&

Re: [digitalradio] ARRL TTF Report

2007-01-31 Thread Walt DuBose
Well the $10,000 was just a number I suppose put up for informal discussion an HF data mode/mode challange project. As I learned, not necessarly a single $10,000 prize since there are always administrative costs such as evaluating the entries. Also you might have a prize for the runner up. I

[digitalradio] Zero Modulation Doppler Tone

2007-01-30 Thread Walt DuBose
I was exchanging E-mails with one of the individuals who was initially involved in writing the MIL-STD that created multine tone modems and the use of a single tone with no modulation in PSK modes to track and correct for doppler shift. They could not understand why "hams" did not just add anoth

Re: [digitalradio] Re: FNpsk

2007-01-30 Thread Walt DuBose
James Wilson wrote: > > > Whats wrong with service packs and AV and security hot fixes? Us > networking guys have to stay in business. > > Seriously though I would recommend using Linux over MS. This recent > daylight savings time issue shows how Microsoft can be heavy handed. > Basically you

Re: [digitalradio] Re: FNpsk

2007-01-30 Thread Walt DuBose
Here is an interesting question... What is the user throughput in WPM or CPS (what you see on your monitor) in 1200 baud AX.25 and the 190-200 WPM user throughput of PSK125? I have send many, many pure SMTP messages using sendmail over AX.25 KISS mode with a NOS stack. I have also worked wi

Re: [digitalradio] Re: FNpsk

2007-01-29 Thread Walt DuBose
Andrew O'Brien wrote: > > > --- In digitalradio@ yahoogroups. com > <mailto:digitalradio%40yahoogroups.com>, Walt DuBose <[EMAIL PROTECTED]> > wrote: > > > > Can someone tell me about FNPSK? > > > > Thanks & 73, > > &g

Re: [digitalradio] FNpsk

2007-01-29 Thread Walt DuBose
iption of FNpsk. Walt/K5YFW Jim Orcheson wrote: > > > Walt, > > Did you try Google? (193 hits) > > Jim VA3JNO > > Walt DuBose wrote: > > > > > > Can someone tell me about FNPSK? > > > > Thanks & 73, > > > > Walt/K5YFW > >

[digitalradio] FNpsk

2007-01-28 Thread Walt DuBose
Can someone tell me about FNPSK? Thanks & 73, Walt/K5YFW

Re: [digitalradio] ALE CQ and ALE GPRS Re: SDRs Open Possibility for 18kHz Bandwidth HF Data?

2007-01-25 Thread Walt DuBose
I was pulling your leg...ALE is good for calling nets and having individuals on standby and not bothering them until you have something for them. But I like calling CQ... CQ CQ CQ this is K5YFW Kilo Five Yankee Foxttot Whiskey K5YFW Kiss Five Young Friendly Women calling CQ 40 and standing

Re: [digitalradio] SDRs Open Possibility for 18kHz Bandwidth HF Data?

2007-01-24 Thread Walt DuBose
I am going to top post...so flame me. Hi Hi. Bob, I'm over 65, been a ham for almost 50 years dropped out of engineering to become a political scientist and somehow or the other became a program manager for ADPE (automatic data processing equipment and systems...can you say computer?). I will

[digitalradio] ARRL to offer $10,00 prize for HF modem

2007-01-24 Thread Walt DuBose
ntrate at work. So tonight I will NOT sleep and tomorrow I will be useless at work. 73 and CUL, Walt/K5YFW Original Message Subject: Re: [Fwd: [pskmail] Re: BBS for emergency communications] Date: Mon, 22 Jan 2007 21:59:13 -0600 (CST) From: Coy Day <[EMAIL PROTECTED]&g

Re: [digitalradio] PSK Modes

2007-01-24 Thread Walt DuBose
milar timing for ARQ. How about 0.5 > seconds pause between transmissions and awaiting an ACK or NAK or > control signal? With right control signals you could change the length > of time for the packet burst. But for starters, maybe just a simple > packet size. > > 73, >

Re: [digitalradio] PSK Modes

2007-01-23 Thread Walt DuBose
Nino, That was kind of my thought...interesting about the Chip64 decoder...I will have to study the mode more. In my post I did day that it was a 100 mile path but did not stipulate that is was all over land. Also, unless you live in an area where the ground conductivity changes a large amou

Re: [digitalradio] PSK Modes

2007-01-23 Thread Walt DuBose
Please allow me to make some comments based on research done here in San Antonio. As some may know, SouthWest Research Institute is located here in San Antonio and has done work on high baud rate modes with very poor SNRs. Also they are part of the current project that is "flying" a space craf

Re: [digitalradio] IICOM IC-735

2007-01-21 Thread Walt DuBose
> - Original Message - > *From:* k5yfw > *To:* digitalradio@ yahoogroups. com > > *Sent:* Sunday, January 21, 2007 5:41 PM > *Subject:* [digitalradio] IICOM IC-735 > > Is anyone using an ICOM IC-7