[digitalradio] MICROHAMS DIGITAL CONFERENCE IN REDMOND, WA
Lots of good Digital Radio content at the Microhams Digital Conference. It's the weekend before DCC so if you're coming out to the Pacific Northwest, come a little early and check this out. 73 Bill - WA7NWP REGISTRATION NOW OPEN FOR THE MICROHAMS DIGITAL CONFERENCE IN REDMOND, WA, SEPTEMBER 18, 2010. Registration is now open for the 2010 MicroHAMS Digital Conference. The 2010 MDC will be held on Saturday, September 18, 2010 from 08:00 (registration opens) to 17:00 on the Microsoft campus at one of their excellent conference facilities. Because the MDC is being held on Microsoft property, advance registration is recommended - not only is space limited, but there are only a limited number of same-day registrations available. Registration is $25 in advance (includes lunch) and can be performed online at http://www.microhams.com/registration/. The MicroHAMS Digital Conference is an official ARRL Conference. Presentations at the MicroHAMS Digital Conference draw heavily from local presenters to reflect both local interests and local Amateur Radio Digital technology development. Presentations from past MDCs are linked from the MicroHAMS web page - http://www.microhams.com. 2010 MicroHAMS Digital Conference speakers currently scheduled: Jeremy McDermond NH6Z discussing High Performance Software Defined Radio (HPSDR) software being ported to run natively on latest versions (including underlying OS and graphical user interface technology) of Apple Mac OS. Stewart Kantor, CEO of Full Spectrum Networks, which makes a Mobile WiMAX system called FullMAX that adapted for use on VHF and UHF spectrum. FullMAX capabilities encompass all Amateur Radio bands 50 MHz through 928 MHz with no modification, leading to the exciting potential of plug and play TRUE broadband (mobile!) wireless capability on Amateur Radio frequencies. Stewart will explain how they adapted Mobile WiMAX technology, normally operated on frequencies such as 2.5 GHz (Clearwire), to VHF / UHF spectrum, including challenges such as narrowing the occupied channel of Mobile WiMAX to as little as 200 KHz. Andy Ruschak KK7TR will discuss the use of P25 and digital voice in general in Amateur Radio. Andy will explain about the attributes of P25 (the interoperable standard for digital two-way radio for public safety) that are of particular interest for Amateur Radio operations, including potential interoperability, when needed, with public safety P25 systems. Lyle Johnson KK7P's presentations are unfailingly fascinating, ranging from his experiences helping to found TAPR and the US Amateur Packet Radio movement, to hands-on development of hardware that has flown on a number of Amateur Satellites, to embedded Digital Signal Processor (DSP) technology, most recently for the Electraft series of HF radios. Dan Smith KK7DS, the father of the D-RATS software (which some consider a primary reason to deploy Icom's D-STAR digital radio systems) will be speaking on the latest developments in D-STAR (including the rapidly-evolving non-Icom D-STAR ecosystem) and integrating D-RATS with Winlink. Ward Silver N0AX will be our official ARRL speaker. Ward is the author of numerous books relating to Amateur Radio, most famously, Ham Radio for Dummies, one of the most accessible treatments of Amateur Radio as a whole for readers not previously exposed to Amateur Radio. In keeping with the Digital focus of the MDC, Ward will speak on Protocols, Modulations, and Modes. The cost of lunch is included with registration and is provided on site. By popular demand, the 2010 MDC has more space allocated to show and tell tables, and the 90-minute lunch period is specifically UNstructured to allow ample time for individual discussion and visiting the various show and tell tables. In addition a series of blog posts have been created to provide insight into the organization and planning process of the conference - http://www.microhams.com/digitalconference/. To answer a Frequently Asked Question about the scheduling of the MicroHAMS Digital Conference, due to unavoidable scheduling conflicts, the MicroHAMS Digital Conference, normally held in the Spring, was rescheduled to the Fall. After the MDC was scheduled and announced, the ARRL and TAPR Digital Communications Conference was announced for both the weekend following the MDC (September 24-26), and that it would be held in nearby Vancouver WA (Portland, OR metro area). As this announcement is written, only a loose outline of the ARRL and TAPR DCC is available. The presentations and overall focus of the two conferences, though outwardly similar, have quite different focus. The Microhams Digital Conference tends to focus more on Seattle-area technology developments and developers; the ARRL and TAPR Digital Communications Conference presentations can be slightly more academic / formal paper presentation, along with a more national and international focus. In the view of the MicroHAMS Digital Conference organizers
Re: [digitalradio] Re: ROS, legal in USA?
We want to be able to use the mode on HF, but it is not our decision, but our FCC's decision, for whatever reasons they currently think are valid. Fortunately, it may work well on VHF and HF, so I plan to find out. Might this give some wider data on UHF? 20KHz? 50 KHz? Would it be limited by more then the soundcard and RF platform? Bill - WA7NWP
[digitalradio] 3.580 is a busy frequency?
Isn't 3.580 MHz about the busiest digital channel on 80 meters due to the proliferation of cheap crystals? I'm about to suggest it's not a good spot for more wl2k testing, which could be totally agile across the data portion of the band, and I'd like to make sure I get my facts right. Bill - WA7NWP
Re: [digitalradio] cognitive radio systems;?
I first heard of cognitive radio systems when efforts were underway to make use of the 'white space' in the television broadcast bands. The whole idea is to make more efficient use the the spectrum by putting situational awareness in to the client device. One example we're discussing is how to use the repeater channels (over allocated - under used) for data when the repeaters aren't in use. Cognitive radios could learn which channels had the least use and make more use of them. There are issues to be resolved but the concept is promising at the very least. Yes - ham radio has never been so alive. We have incredible tools (toys) there but for the using. 73 Bill - WA7NWP
Re: [digitalradio] USA Novice-Tech operations on 10M?
James, everyone used to play there because of the old rules. It would seem logical to use the same portion of the band as one uses on other bands , .070 for basic PSK operations. PSKMAIL and other digital stuff may be a little further up so as to avoid CW operations. This is a server and we should really get all servers in the unattended sections of the band... (And we need to get much more 'unattended' room.) Bill - WA7NWP
Re: [digitalradio] Re: QRV RFSM-8000 tonight
Bonnie, Thanks for the info. That does open it up for some preliminary testing... Bill, WA7NWP USA you can use it on every ham band, MF, HF, VHF, UHF, etc. Just be sure you are in the correct band segment for image comms. And be sure your transmission's content is image. 73 Bonnie VR2/KQ6XA Bill WA7NWP wrote: So what would be the lowest band we could use it on? 10 meters? 6 meters? Higher?
Re: [digitalradio] Re: QRV RFSM-8000 tonight
So what would be the lowest band we could use it on? 10 meters? 6 meters? Higher? Bill, WA7NWP On Mon, Oct 12, 2009 at 4:19 PM, obrienaj aobri...@stny.rr.com wrote: Thanks Patrick, I guess we will have to lobby for some changes. Andy --- In digitalradio@yahoogroups.com, Patrick Lindecker f6...@... wrote: Hello Andy, If RFSM-8000 derives from MIL-STD-188-110A (implemented in Multipsk), it is not legal in USA because the speed modulation is equal to 2400 bauds with a limit of 300 bauds in USA (you can't TX in 110A in USA). It is really a shame. Note: even if the (useful) bit speed is equal to 75 bps, the modulation remains at 2400 bauds.
Re: [digitalradio] Overnight 7080 MH list
Lots of familiar calls in there. What mode was this? FYI from FN02hk 7080 2009/09/30 08:35:30 K7EK 2009/09/30 07:32:06 AF5T 2009/09/30 06:35:00 W0RLI 2009/09/30 06:29:31 WB6YTE 2009/09/30 06:24:37 W7BO 2009/09/30 05:47:20 KG4VUB 2009/09/30 04:35:37 VE3VAI 2009/09/30 04:28:42 KD7PAJ 2009/09/30 03:59:20 W9IB 2009/09/30 03:49:55 W7DMR 2009/09/30 01:28:21 N1CPE 2009/09/30 01:24:25 N9DSJ
Re: [digitalradio] Re: An open letter: W1AW and 80m psk31 interference
Why is the code practice sessons even needed now ? In 1955 very few probably had tape recorders or an easy method to get perfect code practice. Now you can get a computer for almost nothing Ah but radio is what this is all about. There's just something special about doing it over it the air.. If there wasn't, why would we be doing any of this as it's all so quick and easy simply with computers and the net... 73 Bill - WA7NWP
Re: [digitalradio] Re: An open letter: W1AW and 80m psk31 interference
Allow me to throw in one more thought... I believe we'd all be better off if the machines were segregated from the humans. This is an extension of the current flawed attended/unattended scheme. Let's keep one segment of an Amateur allocation reserved for all the manual usage and put the machines in what we used to call the unattended segment. Given that concept, the code practice sessions would be moved to the machine segment of the band... 73 Bill - WA7NWP On Fri, Sep 25, 2009 at 7:51 AM, Bill V WA7NWP wa7...@gmail.com wrote: Why is the code practice sessons even needed now ? In 1955 very few probably had tape recorders or an easy method to get perfect code practice. Now you can get a computer for almost nothing Ah but radio is what this is all about. There's just something special about doing it over it the air.. If there wasn't, why would we be doing any of this as it's all so quick and easy simply with computers and the net... 73 Bill - WA7NWP
Re: [digitalradio] Re: An open letter: W1AW and 80m psk31 interference(A dissent)
Maybe I haven't been paying attention, but what is it that makes 3580 a sacred gathering place for PSK? Why isn't it 070 like it is on some other bands? Why can't we just QSY to get away from W1AW? Many home brew low power rigs, psk included, use the standard and very cheap 3.579 TV color burst crystal. 73 Bill
Re: [digitalradio] 20M RS ID mode hunt, outcome
FWIW I am progressing very well with my SDR console, so start saving for a SDR receiver because I'll add RSID reception to the console, this means you'll be able to monitor a whole band (or bands) for RSID signals in a few months. Just a receiver? I'm really excited by all the opportunities here - both with the ability to watch more of the bands as well as being able to experiment with faster data on wider bandwidths. It just keeps getting better and better.. 73 Bill - WA7NWP
Re: [digitalradio] 20M RS ID mode hunt, outcome
Thanks for the signal report. I'll try to make some calls on the 30 meters this weekend via MT63 on 30 meters. Will post on ur shed page. So - for basic RSID hunting with HRD, would these be the main frequencies to monitor? 3.580 7.070 10.140 14.072 I've been raving about how cool RSID is to my friends for weeks but I have yet to actually capture one on my own. Thanks, Bill - WA7NWP
Re: [digitalradio] QRV WINMOR
I am QRV WINMOR testing RMS beta on 7080 VFO Andy K3UK RSID?
Re: [digitalradio] Re: More on RS ID ... the pleasure of
Yes, using Commander, I set the dwell time for scanning to just 3 seconds. I am scanning four 3Khz segments over 12 seconds. I may miss a few RS IDs but it should be interesting. Does a log file get created with the time's and freqs of RS-ID's heard?
Re: [digitalradio] Software defined receivers, versus transceivers, for digital modes ?
The goal is also for DM780 to take data from the SDR console and use it to display / monitor up to 200kHz of bandwidth. Lets not forget the opportunities here to even transmit with wider bandwidths then before. There are likely both weak signal and faster data realms here we can finally begin to explore... For a starter, how about a 10 KHz version of the QPSKx25 mode... 73 Bill - WA7NWP
Re: [digitalradio] The ARQ Advantage?
AX25 allows several stations to operate within a bit of spectrum wide enough for one. For example, up to a dozen Q15x25 stations can operate within one 1k to 3k ( depending on how you scale the modems ) slice of spectrum. ARQ modes that do not operate under AX25 are incapable of this, and so are far less spectrally efficient, If spectral efficient means bytes per spectrum (kilohertz maybe) per time - then it's far more efficient to time multiplex where stations take turns passing traffic rather then trying to simultaneously use the spectrum. That's the same reason we all have home run 100 base T networks and switches on our personal networks instead of hubs or coax... The overhead and problems of sharing a channel are throughput killers.. 73 DE Charles, N5PVL More later... Bill - WA7NWP
Re: [digitalradio] The best of all features - SdR
What do you think such a mode would be used for, Bill? The latest brainstorming is a community mesh network. Put a little box in the attic with Ethernet on one side and an antenna on the other.Build a whole VPN with video, vip, whatever.. Given the bits the options are endless. If the price is reasonable many hams in any neighborhood would participate. I have increasing doubts about what hams really want with new modes or capabilities. It does not seem to be improved speeds or accuracy based on what they actually use, compared to what is actually available right now. There's some impressive activity on the SDR front. Given more RF bits we'd see a lot of the old guard come back to play.. The current 1200/9600/56000 was getting long in the tooth in the mid 90's. It's time to breakloose There has to be some purpose for having a higher speeds. Also, there seems to be no exceptions where a higher speed leads to greatly improved robustness. Even the fastest modes that can adjust for conditions, generally revert to a minimal number of tones, with a good example being Pactor 3. How far can you expect an ultra wide bandwidth mode to propagate? Ultrawide ? Ultra wide is megahertz... 100's of kilohertz is barely getting beyond 90's.. In the real world anyway. We already have relatively high speed modes that don't even require a ham license. Yup and getting better by the week.. You are not going to be able to run 192 kHz modes on 2 meters and lower without some kind of STA here in the U.S. Or permanent change to the archaic rules we operate under now. Given the readily available technology - the changes will happen. The only interest might be FSTV. Or lets throw some QAM256 on it and do real video... I turned on my Comcast digital cable yesterday and the change is way impressive. I have done some experimenting on 2.4 GHz with WiFi type image transmissions from a portable set up to a laptop computer, but it is not very compelling. Range is way too short unless heroic measures are taken.. This is, believe it or not, the best time for ham radio. Technologies and the hardware to use it have never been better. Rick, KV9U Bill Bill V WA7NWP wrote: If we could get access to 192 KHz with a special sound card and some minimal hardware - couldn't we really open up the high speed data possibilities. Something simple to get on any band from 10 through 220 MHz would be way cool! Bill - WA7NWP
Re: [digitalradio] The best of all features - SdR
For information, with the last version of Multipsk (4.14), you can decode 48 KHz (for standard sound cards) up to 192 KHz (with specific sound cards) if you have a SdR. If we could get access to 192 KHz with a special sound card and some minimal hardware - couldn't we really open up the high speed data possibilities. Something simple to get on any band from 10 through 220 MHz would be way cool! Bill - WA7NWP
Re: [digitalradio] SCS PTC with P3 Uses ?
Over the past couple of weeks I have been testing a SCS PTC2 usb modem with a pactor3 license, and have come away amazed and humbled by what this thing can do. Thanks for sharing this John. Since I have only a passing interest in emcomms, how is a SCS PTC2 with P3 for just basic ham communications? It'll be interesting to see what external hooks, if any, will be present with Winmor. With the SCS TNC's we can do UUCP (basic Linux) or even TCP communications on HF. I'm doing a bit of dreaming about the next significant radio toy. SCS TNC or ID1?I think there's far more ham opportunities with a P3 TNC -- specially now that JNOS supports the hardware. 73 Bill - WA7NWP
Re: [digitalradio] AX.25 vs Something New
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
[digitalradio] Shoutcast of PSK31 - 14.070
Has anybody set up a Shoutcast or similar Internet radio feed of a psk radio channel like 14.070? I wonder how the latency and jitter on an TCP/IP audio feed would be tolerated. 73 Bill - WA7NWP
Re: [digitalradio] Re: The sorry state of VHF/UHF Packet
On Nov 29, 2007 11:37 AM, Rud Merriam k5rud@ Which radio? The Kenwood D710.They've supposedly fixed the issues with the D700 and, if true, we have a dual band frequency agile 9k6 and 1200 baud data radio. Unfortunately the current premier packet data application, Airmail 2000, doesn't support KISS and the D710 supports only KISS for binary data. There may be some other data mode I don't know of -- but we can be fairly certain the 710 doesn't do Kantronics host mode which is what Airmail uses for normal TNC communications. Bill - WA7NWP
Re: [digitalradio] Re: The sorry state of VHF/UHF Packet
My point is that the packet radio cannot prosper if all of our _amateur radio_ applications are closed source. Closed source or open source is a non-issue. What matters is if the software is well supported with good engineering principles.An open source package with no support is far less useful then a closed source program with good support. Likewise the OS choice of Windows, *Nix or MAC is far less of an issue today then it was. I'm sending this message from Linux - running in a Virtual PC on an XP-Pro system. Linux on windows, windows on Linux, - it's all possible today. 9600 is minimum speed I've run megabytes of TCP/IP traffic through a 1200 baud connection and that's still my focus. Slow - sure but as long as the expectations and requirements fit - it works just fine. 9600 off the shelf We may finally have the first off the shelf 9600 baud data radio. It's been on the market for a couple months and still nobody has given it a good test. ampr.org - 44 net. Stuck in the early 90's - see http://www.no-ip.com or http://en.wikipedia.org/wiki/Hamachi for modern replacements. Time for the days 3rd cup of coffee eh? 73 Bill - WA7NWP
Re: [digitalradio] Re: Amateur Radio in Disasters/What we really need
Being in Oregon, there is little need for Tornado watchers! However, SHOULD something like that occur, without having to stay by the radio or terminal 24/7, is there a program that allows for or provides ALARMS that are audible to alert a network of Packet stations? APRS can easily to this. It's simply a matter of configuring the stations and establishing some processes. Since you're in Oregon, check out: http://www.nwaprs.info 73 Bill - WA7NWP
Re: [digitalradio] ARRL wake up ......
NO ONE wants to hamper experimenting but at the same time no one should want to crush other older modes ... No one wants to crush the older modes -- but they can't block moving to new modes and that's what's happening now. Sadly NO ONE beleves that somehow our fearless leaders in Newinton are not up to something And the ARRL came over as tring to do just that with 90% of 2 major bands being opened for 1% of all hams. I don't believe they're up to something sinister. Quite the opposite I believe the recent actions would be far less then what we Amateurs need to survive and thrive in modern times. The problem with the current support of a certain digital message trafficing system isn't that it's being supported, but that it has significant technical shortcomings. Also the ARRL folks should build a real system of their own, not piggy back on another system. Now back to radio .. That is a good plan.. Bill, WA7NWP
Re: [digitalradio] Re: ARRL wake up ......
Could you enlighten us on just exactly what modes are being blocked by the current regulations. What bands do these modes operate on? What is the purpose of the blocked modes? That's a big part of the problem with the previous proposal. It created new blocks we don't have today. The ARRL stated that very wide multi-tone modems ARE allowed under current regulations and I guess I'm just not educated enough to know that implementation of some better modes are being blocked. Heck, pactor 3 only operates at 100 baud. Does SCS have an even better modem that works at something over 300 baud? I don't know about SCS -- that's not the point. The critical issue is not to purposely burden ourselves with arbitrary restrictions not based on technology. Keeping tomorrows 20 KHz or 50 KHz soundcard modes off the bands with todays rules is not a good thing. My fantasy is for the Fairy Godmother to wave her magic wand and carve (some?) of the bands into 3 pieces. One for narrow and manual modes. One piece for legacy medium bandwidth voice modes. The remaining piece would be completely open. A place where anything goes where we can experiment and advance the art. It's good to dream! 73 Bill - WA7NWP Jim WA0LYK
Re: [digitalradio] Re: Report of the ARRL Ad Hoc HF Digital Committee Dissenting
There was no detection available when the rules were implemented (1995?). That is the reason for the automatic areas. It was primarily intended for fully automatic stations, such as the Winlink system (perhaps the is still true for the NTS/D system which continues to use the old Winlink software), and for AX.25 store and forward. There was detection..The automatic areas were set up for packet and that's always had carrier sense or even audio presence detection. It was the same automatic vs manual station issue then. The whole idea was if you swim with the sharks (operate within the automatic stations segment) then don't whine when you get a toe bit off. This would still be a good solution. 1/3 the band for narrow museum modes. 1/3 for voice modes and 1/3 for modern progressive modes with no rules or bandwidth limits and let technology rule. 73 Bill - WA7NWP
Re: [digitalradio] legal Mode guidelines
This is from the same guys that want to distroy 6 meters with 200 khz wide signals? Not destroy it - save it... Amateur Radio used to be technology leaders. Today its the last bastion of otherwise obsolete 'museum modes' like AM, CW and ATV while the real world technologies of digital wide band modes are exploding. Not that having a place for museum modes is bad -- we just shouldn't hold on to them at the expense of the future. I'm assuming everybody here does know that 6 meters is encompassed by BPL.. 73 Bill - WA7NWP
Re: [digitalradio] Re: Digital via Fldigi Puppy [Was: Falling into the Vista trap]
Does the kernel AX25 packet stack work with Puppy? If so, any how-to pages for setting it up? Thanks, Bill - WA7NWP On 3/2/07, kd4e [EMAIL PROTECTED] wrote: Wow! I already use Puppy Linux for everything, office, Internet, GPS, etc. and now a simple-to-install Ham digital app.
Re: [digitalradio] Re: HF Packet BBS?
Bill, What you have left is noisy HF. So this is the time to try PSKMail. Its only (ONLY???) 200 WPM user throughput but 100% error free and even under the very worst conditions, 25-50 WPM? What is WPM? Bytes per second is a fixed measure. Assuming 5 bytes plus a space that's 6 bytes per word. 200 wpm is 1200 bytes per minute? Or 1200/60 120/6 or 20 bytes per second. About 200 bits per second. That's not bad for HF but it looks like the PC-ALE package is much faster. Don't forget that since this is based on standard TCP/IP technologies, it's easy to connect PSKmail to JNOS to Airmail to the rest of the world.. They're all building blocks. Hmmm. Does the PC-ALE messaging talk TCP/IP standards? I wonder if it would be possible to use PC-ALE to automatically send a compressed bundle of UUCP Email... Bill
Re: [digitalradio] Re: HF Packet BBS?
A couple comments on KV9U's notes... (one is Jose) KV9U wrote: When you are using xNOS aren't you also needing to be using TCP/IP with considerable overhead? From what I have understood, using xNOS on a 1200 baud system is not really practical although at 9600 baud it is OK. The beauty of xNOS is that you can choose. You can use the TCP/IP with it's more overhead and better routing or you can use the more efficient legacy FBB/W0RLI BBS forwarding technology. You can route the messages any way you want. 1200 works ok as long as you have a good RF path and keep the messages from getting too big. Sometimes, bad setups with miserable antennas and bad parameters took a bigger toll than the TCPIP overhead... Yup. - given good RF, like a regenerating repeater, you can move lots of traffic even at 1200 baud. With the IP numbered system, such as the amateur radio 44 IP numbers, you have to register your specific address with a central authority, although I have never quite understood how it is used. You would need to go to your areas AMPRNET Coordinator:) Totally not needed for any *nos work. It's been a big distraction from the important stuff of passing messages on the air. Just treat the RF like you do a home LAN and use the 192.168 numbers. When you have a real Internet presence, use no-ip.com or other dynamic dns service to publish it. If you had JNOS, what speeds were you running it at and why did it discontinue operation? Discontinue? Just looking for time to get it ported to a WRT54G or NSLU2 JNOS and TCPIP, or Linux, have not become POPULAR because they are not really plug and play to work at low speeds, you have to know what you are doing. The learning curve is steep and it is really not for the faint of heart. That is the truth. Not worth the effort for most folks in this era of web portals and you-tubes. 73 Bill
Re: [digitalradio] Re: External hard drives?
The solution I would propose is to purchase a new drive Could try a Virtual PC disk image on the thumb drive. Then everyting is installed there and it's a simple file to delete when you're done. http://www.microsoft.com/windows/virtualpc/default.mspx
Re: [digitalradio] Re: USA: No Advanced Digital HF Data Comms
I will also ask the question again: If we had the ability to send high speed digital data on HF, what would we be sending to each other that we don't do now? Anything. Everything. There's no 'technical' reason we don't do everything on HF. Discussion groups like this, pictures, favorite songs, audio/video snapshots. WL2K is right in one sense that it's good to offload as much as possible to the Internet as soon as possible. On the other hand, the Land Line Lid folks were right that putting traffic to the Internet stifles innovation and technology. My stock question again: What would have to change to make what we do (Amateur Radio - digital) interesting and relevant to the typical Jr High School computer hobbiest? We can talk forever about A1C's and X0Z's but in 10 or 20 years it's going to be that Jr Hi generation that's doing what ever is being done. 73 Bill - WA7NWP
Re: [digitalradio] Re: FCC Failure FCC Success
kd4e wrote: [EMAIL PROTECTED] wrote: There does seem to be a near consensus of radio amateurs that Pactor 3 simply does not belong on the amateur bands. If that is true then BPL has won. What, please, do BPL and P3 have in common? Both are of value to their users and thus the community in general. If we holders of the amateur frequencies don't use them to bring significant value to the community, we will have little reason to say BPL shouldn't be using them. (Other than frequent and well-founded complaints about QRMing other spectrum users?) That's an organizational issue and has nothing to do with the technologies at hand. P3 is a mode that is best utilized on dedicated spectrum vs multi-mode shared spectrum. It is more suitable to commercial, public service, and maritime communications and there is tons of spectrum assigned to those services. It does not play well with others. Sure it does if the organization is done right. Of course it's not reasonable to expect CW, PSK31(etc) and P3 to exist in the same 10 KHz of a band segment. How about something like: 3.5 - 3.6 MHz - .5 KHz modes 3.6 - 3.65 MHz - Extra voice 3.65 - 3.75 MHz - completely open - P3, 50 KHz data, etc. 3.75 - 4.00 MHz - more voice One good technique to judge the value of something is to put a dollar tag on it. What would happen to the amateur frequencies if we had to pay 1 penny per kiloherz per minute... A 10 minute AM transmission 8 KHz wide would cost 10 * 8 * 1 or 80 cents... A 2 KHz SSB transmission would be 20 cents. PSK31 and CW would take .1 KHz so look at the cost savings there. We have to be relevant - to current technology, to the community and to todays Jr Hi students. 500 Hz data doesn't fit any of those. 73 Bill - WA7NWP
Re: [digitalradio] pactor via sound card?
Hello all, Does anyone know of a way to both copy and transmit on pactor? I need to put together a small digital station with just the xcvr and laptop. I don't need another box!!! Get a SCS P3 box.. If you're doing anything beyond pure recreation with it that's the way to go. It's a small box. Will be using it to send E-mail back from the wilds of Peru this summer if all goes well. With a little luck I'll be consuming Inca Kola at the in-laws in Lima this summer.. 73 Bill - WA7NWP
Re: [digitalradio] Re: FCC Failure
There does seem to be a near consensus of radio amateurs that Pactor 3 simply does not belong on the amateur bands. If that is true then BPL has won. P3 is a good first step towards modern communications technologies. A mouse going SQUEAK SQUEAK SQUEAK. He's making lots and lots of racket. The Mr Mouse sees with a big chunck of cheese. Mr Mouse thinks it's the best bonanza ever and all that SQUEAKING was worth it. Does he have time to be surprised when the trap snaps shut with a SNAP! Will we hams have time to be surprised when the trap Snaps with you're not using modern 'useful' technologies with the frequencies. BPL is... Could it be a conspiracy? Bill
Re: [digitalradio] Re: Don't ignore proposals/local HF net successes
Unlike other modes, digital can offer time shifting through such things as BBS store and forward capabilities that allow you to check in when it is convenient for you. The downside of this is that you lose the comaraderie that develops on CW and voice nets. Amateur Radio Digital has an incredible IRC/IM clone called the Convers server system. Unfortunately it's been essentially lost in the fuss of all the other technologies. A few of us are using it out here on a more regular bases and finding that goes a long ways towards increasing the comaraderie quotient. 73 Bill - WA7NWP Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) * To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [digitalradio] Don't ignore proposals/local HF net successes
It's not only the current users that are important but the future users. What about the potential amateurs in Jr High School. How do we make the bands useful for them? I suggest the question is not if they will be using them in the future, but under which regulations - Part 97 or Part 15. Bill - WA7NWP You still don't get it it's not me you need to be talking to go post this on 6 meter user groups websites and see if they agree with you . The segment 50.5 - 51 is too small. Remember we need something 200 kHz wide to achieve the data rate objective for the test per Shannon's Rule. To get to 240 kbps with OFDM modulation we need 200 kHz of bandwidth. Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) * To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[digitalradio] Waterfall 2d
I made my first Digipan/psk31 QSO last night in several years. It was the first one ever on 40 meters. It's good to be back. One feature request that seemed to jump out at me was the selection of historical info on the waterfall screen. Currently we can select where on the X axis to decode -- but everything down the display is past and gone. Lots of bright yellow bursts of transmissions that would be interesting to replay and see what the contained. Do any of the waterfall based applications keep a buffer of the received audio so it's possible to look back at the various tracks showing on the display? Thanks, Bill - WA7NWP Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) * To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [digitalradio] PSKmail
At the moment I can also see servers connected in Vancouver and Corinth, Tennessee, but it is unknown what frequencies they are using at the moment. Any more info available about these servers? Vancouver BC or WA? (Confusing eh?) Thanks Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) * To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [digitalradio] Re: The Internet is Unreliable for Amateur RadioService Emergency Communications
Maybe you should go read RFC 822 -- SMTP, which is the mail transport used on the internet, is NOT reliable, never was, never will be guaranteed delivery. Maybe in the future there will be yet another protocol for sending email that IS reliable and guaranteed delivery, but SMTP isn't it! Lets make a little wager. I'll guarantee this message gets to the list using the supposedly unreliable SMTP technology. I'll guarantee it for X dollars that it works. Now - for what value of Y dollars will anybody here guarantee me that it doesn't work? Do we lose one message in a hundred? A thousand? It's all statistics... Now who'd like to take the same odds on the same number and same size NTS messages? CW? SMTP isn't perfect, but it's pretty incredible -- specially if all the backup mechanisms (MX records and SMTP gateways) are correctly set up. If anybody is still reading these rants, here's a digital radio question. I saw an Amateur Radio booth at a state fair yesterday. Very well done and I was very impressed. But - they had a code key up front and a fancy Icom 756 Pro radio next to a computer monitor with a simple web page. Wouldn't a Ham Radio Deluxe or similar program on 14.070 have made an impressive display? Is there a better wizzy program? 73 Bill - WA7NWP Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) * To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [digitalradio] Re: ARQ sound card modes - Eurorpeans
Any particular reason you think that European hams will be the ones developing the ARQ sound card modes? Maybe because they don't have the restrictive 1980's ARRL regulations we're forced to operate under.. 73 Bill - WA7NWP Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) * To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [digitalradio] Re: ARQ sound card modes - Eurorpeans
What ARRL regulations are those? Same old discussion. If the ARRL Regulation by Bandwidth proposal is accepted, I'd be able to run 8 KHz AM (which, of course, has it's place) but I wouldn't be able to do 6 KHz or 9 KHz or 12 Khz data... One of those two modes was availabe in the 1950's. The other is available today. Guess which one would be allowed? Maybe it's time we started charging for transmission time on the air. One penny per kilohertz per minute should about put things in perspective. :-) or !:-) 73 Bill - WA7NWP Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) * To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [digitalradio] Re: The Internet is Unreliable for Amateur RadioService Emergency Communications
I have a friend who lives 142 miles (as the crow flies) southeast of me. He can send me an E-Mail at say 10:00 local asking me to get on 40M for a QSO at 15:00. Sometimes I don't get the E-Mail until well after the Skd time...and sometimes not at all because his E-Mail service bounces his E-Mail back because it says it won't send E-Mail to my E-Mail server. I call this unreliable. However, we can QSO on 75/40M from dawn to dusk and into the night. I call that reliable. My HF radio antenna is low and in the trees. I can't talk across the country reliable on 75 M in the evening... Does that make HF broken? No - my equipment is not configured properly. Same for Email - if it takes more then a few minutes for the Email message to get from one station to another, then you're using the equivalent of a dipole on the ground. The system is not tuned for optimal operation. For casual use it's fine. For time critical use it's broken. It's the pieces that need to be fixed - not the overall system. Bill - WA7NWP Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) * To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [digitalradio] Re: ARQ sound card modes
You hit the nail right on the head. people also need to remember that, when the power, land line and cell phone towers along with the internet fail due to a catastrophe Ham Radio will always be there and be able to get through. So the folks that hate to spend $300 on a TNC are going to be more capable then the system built commercially with $billions and $billions? While there's actually a bit of wisdom in that approach, folks too often overlook just how robust the existing infrastructure is -- and how much has gone into fixing it and the emergency response capabilities. Bill - WA7NWP Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) * To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [digitalradio] Re: ALE QRM is minimal
that symbol rate, its to high, it exceeds the 300 symbol/sec limit per FCC Part 97. Why would the symbol rate be an issue in the regulations? Why would anything like that matter if the data is constrained by bandwidth? Or is the basis of the our rules are holding you back statements by the FCC. Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [digitalradio] Re: The Internet is Unreliable for Amateur RadioService Emergency Communications
I agree that the intenet can very unreliable. Of course so can HF communications: If the Internet is so unreliable, how come all that spam gets to me? Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [digitalradio] New Mode proposal Jamtor Iv
Please feel free to add to the list of helpful features which should be incorporated into Jamtor™ at some point in the future. How about some real world 21st century RF modes using 9 KHz or 12 KHz data channels? None of those 1980's restrictions using mere 3 KHz. from: http://www.rockwellcollins.com/ecat/gs/MDM_Q9604.html?smenu=101 --- Rockwell Collins' MDM-Q9604 high-speed four-channel HF data modem is capable of transmitting data over a standard 3 kHz SSB (Single Sideband) at 9600 bps or a 6 kHz ISB (Independent Sideband) at 19200 bps. In addition, the MDM-Q9604 features three-channel (9 kHz bandwidth) and four-channel (12 kHz bandwidth) operation providing data rates up to 64000 bps in the four-channel mode. --- Oh wait - you're kidding aren't you... Seriously - there is, and must be, room for everybody and everything. Narrow band, SSB voice grade and a jungle area for real modern experimentation. Our true strength is in our diversity... 73 Bill - WA7NWP Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion) Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [digitalradio] JNOS and Linux for the digital ham
More in a bit. Right now here's a couple links. But you know it is not getting traction when you go to a NOS group and find that one with 15 members has 11 messages over a four year period of time! and the other with 29 members has 25 messages over a 4 year period of time! The basic JNOS discussion and announcements are on the NOS-BBS list which was taken over by TAPR last year: https://lists.tapr.org/cgi-bin/mailman/listinfo/nos-bbs The latest work being done by Maiko is documented on his site at: http://www.langelaar.net/projects/jnos2 73 Bill - WA7NWP The K3UK DIGITAL MODES SPOTTING CLUSTER AT telnet://208.15.25.196/ Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [digitalradio] Re: Question about HF-email
My picture was using Ham Radio in emergency situations, or in remote locations - ships at sea, mountain tops, jungle settings, etc. Sure, we have Satellite Phone these days. But that's not like sending one email communiqu to a group (of say 20 people). And I figure providing communications, including email, via ham radio, make the service/hobby a little less obscure. That's essentially what Winlink is... A great introduction is to download and run the Airmail program. H F or VHF. Clients and servers. Internet or Radio. It's a good first step regardless where you end up going. Note that it'll also work peer-to-peer so you don't need the Winlink infrastructure if you're experimenting with some friends. http://www.airmail2000.com/ 73, Bill - WA7NWP PS. For the JNOS discussion folks.. Take JNOS2, cut out most the of BBS code and most of the servers. Compile it so it's a native windows applications. What do you have? I suggest airmail. The K3UK DIGITAL MODES SPOTTING CLUSTER AT telnet://208.15.25.196/ Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [digitalradio] Question about HF-email
What I have never understood is why we can not develop a system whereby HF (or for that matter VHF/UHF) stations can gateway into the internet via some basic system that does not itself require a complicated and fragile internet system. It is probably not possible since the routing issues are the major stumbling block and require a server system such as the Winlink 2000 approach. But that makes for very fragile system that can fail, when failure could be a serious issue during an actual emergency. But there may be no alternative. We've been doing that for many years with JNOS and Linux... It's certainly nothing new. Setting it up is a bit of a battle but it's not hard, just takes some time to work through all the little challenges. The new support in JNOS2 for HF pactor is fills a big hole.. Bill - WA7NWP The K3UK DIGITAL MODES SPOTTING CLUSTER AT telnet://208.15.25.196/ Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
