[digitalradio] SSTV, DV, MS, other demonstration modes for field day
Well, Field Day is fast approaching, and I'm sure many of us are going to be running, at the very least, some keyboard digital modes during the event. Perhaps now would be a good time to plan the use of some demonstration modes, each worth 302 points for a single logged QSO (one-shot 300 point bonus for each mode, plus 2 points for a non-voice QSO). SSTV is good, but 14.230, as bad as it is on a normal day, is absolutely unusable on FD. I suggest the use of the MFSK16 pic mode. I will be preparing a picture of our FD site to send, and will say have pix? during the exchange while running MFSK16. For wide SSTV, you might try 28.680 or 21.340, which are the 14.230 equivalents on 15 and 10 meters. Does anyone else think it may be possible to claim a separate 300 point bonus for regular, MFSK and digital SSTV if contacts are made with all three? For those of you who will have VHF stations, once you've worked everyone on 6 meter phone, maybe some meteor scatter could be attempted. I don't think PJC can be legally used to set up contacts, so everything will have to be random and uncoordinated. I guess the thing to do will be to call on 50.260 and 144.140 with the U/D method, though I'd imagine those frequencies will fill up fast. We'll have to come up with some other possibilities. Like above, I'm wondering if FSK441 and JT6M can be claimed separately... It might be fun to try digital voice, though I can see it being especially difficult to pull off. There will be no open space on 20 meters, 15 may be too long to get a good signal within the US, and 10 may have too much QSB. WinDRM would probably be the way to go, since I highly doubt anyone will be bringing along an AOR modem. And finally, I'm wondering if we can claim a bonus for hacking together a soundcard interface on-site? Probably not, but would be fun anyway... Anyway, I will be running various modes on 40, 20 and 10 meters using my own call (as a GOTA station). On and off, I'll be running MFSK16 trying to find stations to exchange pics with. -Joe, N8FQ
[digitalradio] ALE Re: other demonstration modes for field day
Well, Field Day is fast approaching, and I'm sure many of us are going to be running, at the very least, some keyboard digital modes during the event. Perhaps now would be a good time to plan the use of some demonstration modes, each worth 302 points -Joe, N8FQ Hi Joe, Feel free to connect with my ALE station on field day. You can probably link with it on 14109.5 kHz USB or one of the other ALE channels. Send me an AMD message. Bonnie KQ6XA
Re: [digitalradio] ALE Re: other demonstration modes for field day
Joe, Bonnie, et al. I have been invited to conduct three digital demo modes on Field Day for the Union City Wireless Association. I plan on using ALE, Olivia, and JT65A, using the call sign W3CG. Andy K3UK On 6/1/07, expeditionradio [EMAIL PROTECTED] wrote: Well, Field Day is fast approaching, and I'm sure many of us are going to be running, at the very least, some keyboard digital modes during the event. Perhaps now would be a good time to plan the use of some demonstration modes, each worth 302 points -Joe, N8FQ Hi Joe, Feel free to connect with my ALE station on field day. You can probably link with it on 14109.5 kHz USB or one of the other ALE channels. Send me an AMD message. Bonnie KQ6XA
[digitalradio] Re: Comments to ARRL on New Digi Protocols
Rick, We have four parallel efforts right now. One is to adapt PSKmail for better TTY operation as opposed to mailbox operations, another is to embed ARQ in fldigi, another is to rewrite FMpsk to improve decoding and orient it more toward decentralized Emcomm communications, and lastly, to write a new program using VB.net (I just received my free copy!) with the PocketDigi code and add ARQ and form handling to that. We are furtherest along with the PSKmail modification at the moment. Our own tests confirm that DominoEX is the best choice for performance, especially on HF using NVIS antennas, but the latency of DominoEX requires a modification of the ARQ protocol (probably multiple SOH in each frame) to overcome that. In addition, DominoEx is much wider, and therefore fewer signals can occupy the same passband for multichannel display. When you add ARQ, the multipath problems we experience sometimes with PSK63 on VHF are negated by just repeating frames and this works well in practice because the multipath cancellations are short-lived and throughput is therefore not reduced very often. Even DEX/FEC is not the answer, as only ARQ will guarantee completely error-free transfers. Note that a single wrong digit in a phone number can render an entire message useless! Our Linux effort is directed at adding fldigi or PSKmail on a live CD using Puppy Linux. Several of our VHF net members, including myself, already use Puppy Linux with fldigi as a live CD on Windows machines on our twice-weekly net, and there have been no problems at all. This helps compensate for not having a Windows application, but not completely, as there still are hardware recognition problems with all Linux distros that have already been solved under Windows, so a Windows version is still planned. Although our focus is on VHF applications, what we are doing is also applicable to HF, of course, and especially using DominoEX, but we just have not had enough time yet to test a modified protocol with DominoEX for HF use. I got as far as showing why the PSKmail guys were never able to link using DominoEx, even though it is included in fldigi and PSKmail. Once we have completed our demonstration application for VHF, we will turn our attention to the HF application. Practically, our VHF net members prefer PSK63 over DominoEx because it is easier to manually tune, even though DominoEX has a broad mistuning tolerance. There is also a significant improvement in using horizontal polarization compared to vertical polarization (RCA established this years ago for TV and that is why TV signals are horizontally polarized). Then, using PSK63 instead of FM results in another huge improvement in range. There will be a QST constructions article in coming months for a horizontally-polarized 2m antenna that equals the performance of a 5-element beam, but over a 160 degree beamwidth and is bi-directional in addition. Using this antenna, I am able to work over 100 miles to a 5-element beam over flat country. So, the comparison in range to FM repeaters is somewhat like comparing apples to oranges. All this may seem strange, but we are trying hard to think outside the bun! ;-) 2a. Re: Comments to ARRL on New Digi Protocols Posted by: Rick [EMAIL PROTECTED] kv9u Date: Thu May 31, 2007 7:14 am ((PDT)) Skip, Sounds really interesting. Isn't much of this is available right now with Linux, on PSKmail? However it is not available on MS Windows OS which is what 95+% of hams use worldwide for now. It would seem that adoption will be low until we have cross platform capability.
Re: [digitalradio] Re: Here's a silly thought
--- Danny Douglas [EMAIL PROTECTED] wrote: Give it up Erik. Money talks, and talks louder than anyone else. Some PSK operators are no different that the guys on 80 meters, talking across town, using linears so they can drown out everyone else on the band. Danny . I have lived in Florida for more that 35 years. Could you tell me where Podunk city Fl is ? This question comes up on a regular bases and we here have seen SEMINOLE Fl described as a PODUNK or worse yet as god's new waiting room a title St. Petersburg had for decades. Hu I wonder if PODUNK Fl has its own grid square ? Bruce SEMINOLE Fl. Grid square EL-87 Be a better Globetrotter. Get better travel answers from someone who knows. Yahoo! Answers - Check it out. http://answers.yahoo.com/dir/?link=listsid=396545469
Re: [digitalradio] Re: The Signalink and psk-31
--- alazia2003 [EMAIL PROTECTED] wrote: You will only get my SignaLink USB by prying it from my cold dead fingers! You have THAT right. I'm going to build a small machine just for the card I removed the sound blaster for the test and all problems went away but i need it to run everything else in this shack and Internet. It teamed up with the TS-2000 should make a good pair on 6 and 2 this next year right now i can switch from the FT-100 to the IC-706 to the TS-2000 on either band with ONE switch and run all 3 if i need to at the same time. now if the sunspots would only get going. Bruce Get the free Yahoo! toolbar and rest assured with the added security of spyware protection. http://new.toolbar.yahoo.com/toolbar/features/norton/index.php
[digitalradio] Digital Pentathlon - 2007... this weekend. 50 watts is limit of maximal output power.
Digital Pentathlon - 2007 Participants : Any licensed amateur radio operators are invited to take part in the 3-d Digital Pentathlon competition. Date and time: Digital Pentathlon contains 5 stages of a mode. PSK (BPSK63) mode will run from 1800 UTC to 2200 UTC on June,1 2007 MFSK (MFSK16) mode will run from 1800 UTC to 2200 UTC on June,8 2007 Olivia (500hz/16 tones) mode will run from 1800 UTC to 2200 UTC on June,15 2007 Hellschreiber (Feldhell) mode will run from 1800 UTC to 2200 UTC on June,22 2007 THROB (4 throb/sec) mode will run from 1800 UTC to 2200 UTC on June,29 2007 Bands: Operation is limited to special digital parts of the next amateur bands: 3.5, 7, 14, 21 and 28 MHz. 3585-3595, 7035-7039, 14073-14077 (14103-14108 - Olivia), 21073-21077 (21103-21108 - Olivia), 28073-28075 (28103-28108 - Olivia) Each station may be worked only once per band during an each stage of a mode. Setup for Olivia: 500 Hz / 16 tones. 50 watts is limit of maximal output power. Exchange: Call CQ DigiPen Both station must exchange during a QSO the next information: Serial number - WW_loc - Power(Examples: 001-KO85MM-5 002-JN25AB-35). S/n of each mode begin from 001. Scoring: Each QSO score counts by formula: distance / (P1 * P2) Distance between both stations (km) count by WW-locators P1 and P2 - powers of 1-st and 2-nd stations (watts) Certificates: Winner's awards will be sent to the first, second and third place stagewinners and total 5 modes winners. All awards will be sent by e-mail as jpeg file with the resolution suitable for good quality printing in A4 size. (abt 2MB by e-mail) Each participant who will take part in 5 stages of modes and sent complete logs with no less 10 QSOs in each mode will be enrolled in DQSO Club as a member and will get the certificate with his membership number. Logs: All logs have to be sent before July, 30 2007 The separate logs must be sent for each mode. All logs must contain the following information to be considered for entry: Your name, callsign, QSO data, ww-locator, e-mail address, your claimed score. We will accept only electronic logs in standart Cabrillo format. E-logs are sent to: DQSO Club with your callsign in the message subject.
Re: [digitalradio] Re: Here's a silly thought.
Wow, Brian, there's a lot of very good information in your post, my problem is that there is so much good fact, that it would be easy, too easy, to accept it all at face value. In my mind, I have a few issues, and I'll address them in line, though I really do think that parts your post should be the basis for a faq entry or a wiki or something. Comments below: 73, Erik N7HMS IRLP Node 3804 445.975 Simp PL103.5 Emails sent directly to this address instead of going through a yahoo group are automatically processed as junk mail, so I never see them. If you want to email me directly, try 'mycall' at 12bars dot com, thanks. Brian Kassel wrote: Guys: I have found that *MANY*, but not all, so-called Wide signals on PSK modes are caused by several things being overlooked at the *RECEIVE* end of the QSO. If adjusted properly, most newer radios should handle 50-100W signals providing of course that the transmitted signal is indeed clean to start with. Agreed, if you're saying well adjusted and operated modern receivers should handle being in reasonably close proximity to adjacent stations running 50 - 100 watts. That is not the issue, though, the issue is the need to run 50 - 100 watts (actually the issue I had was someone running 400 watts, but lets not let that interrupt the discourse) to maintain reliable communications. There are indeed plenty of bad signals on the air, but just running higher powers, or big antennas is not the cause by itself. Absolutely agree here, I know I can put out a terrible signal with my IC-703 at 2 watts into an MP-1, I can also put out a perfect signal with the same setup, and work stations 1,000's of miles away. Try to: Turn of AGC if possible, use RF gain to adjust signals. This will allow your receiver to have greater dynamic range. Use a Notch filter if available. Turn off the preamp, switch in the attenuator, especially on bands below about 30M. Absolutely agree, this is the part that really should be in a faq or wiki. I'm not real keen on the attenuator bit, but then that could just be my experience with the attenuators in my rigs, I find that I get better printing if I let the computer audio software handle this, but then it could be my rigs. If the above doesn't work, try a better sound card. When strong signals are encountered, this is where the more inexpensive models start to fold up. Why is that folks will spend many thousands on a fine rig, only to use a $15 sound card? In Digital modes, the sound card is an integral part of the RX chain. Sorry, this is where I really have to take issue. I can see why you think so reading a little ahead into your post. About the only amateur radio application that the generic modern sound card is not up to the task of handling is SDR. This is especially true when working with modern up to date software. About the only deficiency inherent in the common hardware is the problem of receive and transmit audio not being precisely aligned with each other. I honestly can't think of a modern version of any digital mode software that doesn't have an alignment or sound card setup functionality that either manually or automatically takes care of this deficiency for the operator. It is however very important that you go through the alignment process if your software of choice doesn't do it for you. If your software can't adjust for this, upgrade your software. The base software requirement for digital mode operation is a nominal sample rate of 11025 samples per sec. It's all the current software can take advantage of, and unless you are using a sound card as part of a sdr receiver, any fancier or more advanced features are just not taken advantage of by any of the software we use. That said, there are always some exceptions, certain old laptops and motherboard built-ins do have problems, strictly speaking, these issues are a matter of integration into the motherboard and the OS, not an issue with the base audio hardware's capabilities. The bottom line, is that unless you are planning to run an sdr receiver, any modern $20.00 add-on sound card that is supported by your operating system of choice will do a fine job. Please realize that distortion can occur in either the TX or the *RX* of any signal. Many hams don't realize that this basic fact about analog signals. Typically, in many cases, the cause of a wide appearing signal is in the transmitter. I get wide reports frequently. However, I monitor my output with a spectrum analyzer, and have done on the air tests to confirm that my signal is not running worse than -20 IMD, often much better than that. In fact it usually runs better than -25 DB. I run the SDR-1000 software defined radio at 5W (well below the 100W rating), a D-44 professional sound card, and an Ameritron ALS-500M amplifier (rated at 600W out) to get 50 -100W out. This is much more power than
Re: [digitalradio] Re: Comments to ARRL on New Digi Protocols
--- Skip KH6TY [EMAIL PROTECTED] wrote: There will be a QST constructions article in coming months for a horizontally- polarized 2m antenna that equals the performance of a 5-element beam, Usable on SSB ... ?? I have worked New York state from tampabay on USB with stacked ku4ab squailos. Bruce Looking for a deal? Find great prices on flights and hotels with Yahoo! FareChase. http://farechase.yahoo.com/
[digitalradio] VHF PSK63/DominoEX Toronto-Buffalo-Erie-Cleveland-Detroit
I am encouraged by Skip Teller's continued experiments with PSK63, DominoEx, NIVIS antennae and VHF propagation. I believe the Illinois digital group has also had similar success. I note that Skip's net reports good results over flat land, to a range of 100 miles. It occurred to me that many flat-land paths in my region are associated with Lake Erie of Lake Ontario and include large populated cities like Toronto, Buffalo, Rochester, Erie, Cleveland and Detroit. Is anyone from these cities interested in replicated some of Skip's effort and trying a weekly PSK63 and/or DominoEX net? I recall from past postings by Skip that he had specific instructions on how net stations reported to Net Control and pointed their antennas. I will review these past posts. I think I am in a good location that could reach Buffalo, Toronto, Cleveland and Detroit on 2m Please let me know if you are interested.
[digitalradio] june contest
for the contest will have: 6/2/222/432/1296MS on 6/2/222 and JT65A for all bands not in it for the pointsso email all you wish for a sked david/wd4kpd/fm15mm
[digitalradio] grid map
anyone have an idea how to convert a grid square map into a spreadsheed. would like to make each grid equal to one cell in Excell. if you know of a program that does this please let me know. david/wd4kpd/fm15 6/2/222/432/1296
[digitalradio] Re: Comments to ARRL on New Digi Protocols
Skip, we applaud your efforts and are happy to see the cross platform work. Please consider RealBasic as a tool instead of VB.net. With MS there is no such thing as 'free' or 'cross platform. With RealBasic you can code cross platform and there is no charge for the Linux version. Either way, we follow your work with great interest. PLease keep us posted. Howard K5HB --- In digitalradio@yahoogroups.com, Skip KH6TY [EMAIL PROTECTED] wrote: Rick, We have four parallel efforts right now. One is to adapt PSKmail for better TTY operation as opposed to mailbox operations, another is to embed ARQ in fldigi, another is to rewrite FMpsk to improve decoding and orient it more toward decentralized Emcomm communications, and lastly, to write a new program using VB.net (I just received my free copy!) with the PocketDigi code and add ARQ and form handling to that. We are furtherest along with the PSKmail modification at the moment. Our own tests confirm that DominoEX is the best choice for performance, especially on HF using NVIS antennas, but the latency of DominoEX requires a modification of the ARQ protocol (probably multiple SOH in each frame) to overcome that. In addition, DominoEx is much wider, and therefore fewer signals can occupy the same passband for multichannel display. When you add ARQ, the multipath problems we experience sometimes with PSK63 on VHF are negated by just repeating frames and this works well in practice because the multipath cancellations are short-lived and throughput is therefore not reduced very often. Even DEX/FEC is not the answer, as only ARQ will guarantee completely error-free transfers. Note that a single wrong digit in a phone number can render an entire message useless! Our Linux effort is directed at adding fldigi or PSKmail on a live CD using Puppy Linux. Several of our VHF net members, including myself, already use Puppy Linux with fldigi as a live CD on Windows machines on our twice-weekly net, and there have been no problems at all. This helps compensate for not having a Windows application, but not completely, as there still are hardware recognition problems with all Linux distros that have already been solved under Windows, so a Windows version is still planned. Although our focus is on VHF applications, what we are doing is also applicable to HF, of course, and especially using DominoEX, but we just have not had enough time yet to test a modified protocol with DominoEX for HF use. I got as far as showing why the PSKmail guys were never able to link using DominoEx, even though it is included in fldigi and PSKmail. Once we have completed our demonstration application for VHF, we will turn our attention to the HF application. Practically, our VHF net members prefer PSK63 over DominoEx because it is easier to manually tune, even though DominoEX has a broad mistuning tolerance. There is also a significant improvement in using horizontal polarization compared to vertical polarization (RCA established this years ago for TV and that is why TV signals are horizontally polarized). Then, using PSK63 instead of FM results in another huge improvement in range. There will be a QST constructions article in coming months for a horizontally-polarized 2m antenna that equals the performance of a 5-element beam, but over a 160 degree beamwidth and is bi-directional in addition. Using this antenna, I am able to work over 100 miles to a 5-element beam over flat country. So, the comparison in range to FM repeaters is somewhat like comparing apples to oranges. All this may seem strange, but we are trying hard to think outside the bun! ;-) 2a. Re: Comments to ARRL on New Digi Protocols Posted by: Rick [EMAIL PROTECTED] kv9u Date: Thu May 31, 2007 7:14 am ((PDT)) Skip, Sounds really interesting. Isn't much of this is available right now with Linux, on PSKmail? However it is not available on MS Windows OS which is what 95+% of hams use worldwide for now. It would seem that adoption will be low until we have cross platform capability.
[digitalradio] Re: [wsjtgroup] grid map
Dave, does this meet your need? http://www.nlrs.org/W0JT/ContestStationLocator.xls On 6/1/07, David Michael Gaytkko [EMAIL PROTECTED] wrote: anyone have an idea how to convert a grid square map into a spreadsheed. would like to make each grid equal to one cell in Excell. if you know of a program that does this please let me know. david/wd4kpd/fm15 6/2/222/432/1296
Re: [digitalradio] Re: Comments to ARRL on New Digi Protocols
- Original Message - From: Howard Brown [EMAIL PROTECTED] Please consider RealBasic as a tool instead of VB.net. With MS there is no such thing as 'free' or 'cross platform. For free software from Microsoft there is - http://msdn.microsoft.com/vstudio/express/ I have written a lot of software using the free versions, I have now purchased the full version. Simon HB9DRV
[digitalradio] Re: Here's a silly thought.
Erik: Thanks for the well-thought out reply, you make excellent points. Comments below --- In digitalradio@yahoogroups.com, list email filter [EMAIL PROTECTED] wrote: Wow, Brian, there's a lot of very good information in your post, my problem is that there is so much good fact, that it would be easy, too easy, to accept it all at face value. In my mind, I have a few issues, and I'll address them in line, though I really do think that parts your post should be the basis for a faq entry or a wiki or something. Comments below: 73, Erik N7HMS IRLP Node 3804 445.975 Simp PL103.5 Emails sent directly to this address instead of going through a yahoo group are automatically processed as junk mail, so I never see them. If you want to email me directly, try 'mycall' at 12bars dot com, thanks. Brian Kassel wrote: Guys: I have found that *MANY*, but not all, so-called Wide signals on PSK modes are caused by several things being overlooked at the *RECEIVE* end of the QSO. If adjusted properly, most newer radios should handle 50-100W signals providing of course that the transmitted signal is indeed clean to start with. Agreed, if you're saying well adjusted and operated modern receivers should handle being in reasonably close proximity to adjacent stations running 50 - 100 watts. That is not the issue, though, the issue is the need to run 50 - 100 watts (actually the issue I had was someone running 400 watts, but lets not let that interrupt the discourse) to maintain reliable communications. There are indeed plenty of bad signals on the air, but just running higher powers, or big antennas is not the cause by itself. Absolutely agree here, I know I can put out a terrible signal with my IC-703 at 2 watts into an MP-1, I can also put out a perfect signal with the same setup, and work stations 1,000's of miles away. Try to: Turn of AGC if possible, use RF gain to adjust signals. This will allow your receiver to have greater dynamic range. Use a Notch filter if available. Turn off the preamp, switch in the attenuator, especially on bands below about 30M. Absolutely agree, this is the part that really should be in a faq or wiki. I'm not real keen on the attenuator bit, but then that could just be my experience with the attenuators in my rigs, I find that I get better printing if I let the computer audio software handle this, but then it could be my rigs. If the above doesn't work, try a better sound card. When strong signals are encountered, this is where the more inexpensive models start to fold up. Why is that folks will spend many thousands on a fine rig, only to use a $15 sound card? In Digital modes, the sound card is an integral part of the RX chain. Sorry, this is where I really have to take issue. I can see why you think so reading a little ahead into your post. About the only amateur radio application that the generic modern sound card is not up to the task of handling is SDR. This is especially true when working with modern up to date software. About the only deficiency inherent in the common hardware is the problem of receive and transmit audio not being precisely aligned with each other. I honestly can't think of a modern version of any digital mode software that doesn't have an alignment or sound card setup functionality that either manually or automatically takes care of this deficiency for the operator. It is however very important that you go through the alignment process if your software of choice doesn't do it for you. If your software can't adjust for this, upgrade your software. The base software requirement for digital mode operation is a nominal sample rate of 11025 samples per sec. It's all the current software can take advantage of, and unless you are using a sound card as part of a sdr receiver, any fancier or more advanced features are just not taken advantage of by any of the software we use. That said, there are always some exceptions, certain old laptops and motherboard built-ins do have problems, strictly speaking, these issues are a matter of integration into the motherboard and the OS, not an issue with the base audio hardware's capabilities. The bottom line, is that unless you are planning to run an sdr receiver, any modern $20.00 add-on sound card that is supported by your operating system of choice will do a fine job. I probably didn't quite go into enough detail on this point. Certainly reading the recent QST article that compared various popular sound cards shoes that there is indeed not much difference as far as sensitivity and other parameters. I think though from the standpoints of dynamic range and overload, the so-called professional cards fare somewhat better. However all things considered, money is much better spent in the RF RX side. I must note that since switching to the SDR-1000/Delta 66 route, about 6 months ago, I have
Re: [digitalradio] Re: Comments to ARRL on New Digi Protocols
On 6/1/07, Howard Brown [EMAIL PROTECTED] wrote: Please consider RealBasic as a tool instead of VB.net. With MS there is no such thing as 'free' or 'cross platform. With RealBasic you can code cross platform and there is no charge for the Linux version. Howard, Actually, with the .NET environment, this isn't quite true. .NET has a lot of standards associated with it; an open-source project called Mono is reimplementing all these standards. The result is an open-source C# compiler and .NET runtime environment. I'm not sure that there is the same level of support for VB.NET as there is for C#, but people are working on it. Check out http://www.mono-project.com/ 73, -chris N2YYZ
[digitalradio] RE: JT65A HF query/observations
Hi all, Yes, I can see how JT65A is great when signals are weak, but almost all JT65A contacts here in Europe are between EU stations. I have seen the occasional JA station, and one or two ZS stations, but trying to get to work them is almost impossible due to the number of stations that call them. Also, some folk seem to be using quite high power - ie more than 100 watts. I try to keep my JT65A contacts to less than 25 watts. I also agree with Brian K3KO again regarding trying to make contact when signals are really weak. If you can't spot anything on the waterfall, it can be really hard to ensure that anyone CQ'ing falls into the passband. I did some monitoring the other day, and had TU 73 appear on the screen, but I just could not see where it had found that in the +/- 600Hz!!! That meant I wasn't able to click on the tracks and follow the remainder of the QSO. Perhaps there is a way to do this? And what exactly do you put in your log for an RST?? 73 de Phil GU0SUP
Re: [digitalradio] Re: Comments to ARRL on New Digi Protocols
I recently tried the Express version. It was not able to recognize a real .net
project. Take a look at RealBasic, it is cross platform. VB.net is not.
Howard K5HB
- Original Message
From: Simon Brown [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Friday, June 1, 2007 11:48:34 AM
Subject: Re: [digitalradio] Re: Comments to ARRL on New Digi Protocols
- Original Message -
From: Howard Brown [EMAIL PROTECTED]
Please consider RealBasic as a tool instead of VB.net. With MS there
is no such thing as 'free' or 'cross platform.
For free software from Microsoft there is -
http://msdn. microsoft. com/vstudio/ express/
I have written a lot of software using the free versions, I have now
purchased the full version.
Simon HB9DRV
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Re: [digitalradio] Re: Comments to ARRL on New Digi Protocols
Thanks, I did look at mono. It may be important someday but not yet.
Why not use a cross platform tool instead?
Howard K5HB
- Original Message
From: Chris Danis [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Friday, June 1, 2007 12:21:51 PM
Subject: Re: [digitalradio] Re: Comments to ARRL on New Digi Protocols
On 6/1/07, Howard Brown [EMAIL PROTECTED] wrote:
Please consider RealBasic as a tool instead of VB.net. With MS there
is no such thing as 'free' or 'cross platform. With RealBasic you can
code cross platform and there is no charge for the Linux version.
Howard,
Actually, with the .NET environment, this isn't quite true. .NET has
a lot of standards associated with it; an open-source project called
Mono is reimplementing all these standards. The result is an
open-source C# compiler and .NET runtime environment. I'm not sure
that there is the same level of support for VB.NET as there is for C#,
but people are working on it.
Check out http://www.mono- project.com/
73,
-chris N2YYZ
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Re: [digitalradio] RE: JT65A HF query/observations
Phil, One of the columns shown in the WSJT main window (where signals are decoded) is DF. This stands for delta frequency and displays how many Hz +/- you must tune to be exactly on top of the decoded station. As for logging RST, I always use OOO. It's weird for HF, yes, but is the standard signal report exchange for moonbounce. 73. -chris N2YYZ
[digitalradio] Dead US Veteran/Ham question
A little different from the usual questions... Curt KA2SLC, a former active member of this group, is now a Silent Key. His body remains unclaimed by family. I have been told he is a U.S. veteran, does anyone know of a veteran's groups that might assist in getting a veteran a decent burial? Andy K3UK
RE: [digitalradio] Dead US Veteran/Ham question
http://www.amvets.org/ Original Message Follows From: Andrew O'Brien [EMAIL PROTECTED] Reply-To: digitalradio@yahoogroups.com To: digitalradio@yahoogroups.com Subject: [digitalradio] Dead US Veteran/Ham question Date: Fri, 1 Jun 2007 16:37:15 -0400 A little different from the usual questions... Curt KA2SLC, a former active member of this group, is now a Silent Key. His body remains unclaimed by family. I have been told he is a U.S. veteran, does anyone know of a veteran's groups that might assist in getting a veteran a decent burial? Andy K3UK
Re: [digitalradio] Dead US Veteran/Ham question
All I can tell you is to contact the local VFW and they might know who to contact. Rod KC7CJO USAF, RET Andrew O'Brien [EMAIL PROTECTED] wrote: A little different from the usual questions... Curt KA2SLC, a former active member of this group, is now a Silent Key. His body remains unclaimed by family. I have been told he is a U.S. veteran, does anyone know of a veteran's groups that might assist in getting a veteran a decent burial? Andy K3UK - TV dinner still cooling? Check out Tonight's Picks on Yahoo! TV.
Re: [digitalradio] Dead US Veteran/Ham question
I searched the American Legion for Service Officers in
New York and got:
FOR CLAIMS
JOHN W KAVANAGH
AMERICAN LEGION DEPT SVC OFF
245 W HOUSTON ST RM 315A
NEW YORK, NY 10014
PHONE: 212-807-3066
FAX: 212-807-4029
EMAIL:
[EMAIL PROTECTED]
ANTHONY DRUZBIK JR
AMERICAN LEGION DEPT SVC OFF
130 S ELMWOOD AVE STE 614
BUFFALO, NY 14202-2479
PHONE: 716-857-3361
FAX: 716-857-3488
EMAIL:
[EMAIL PROTECTED]
Maybe they can be of service?
Howard K5HB
PS: KA2SLC is listed in New York
- Original Message
From: Andrew O'Brien [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Friday, June 1, 2007 3:37:15 PM
Subject: [digitalradio] Dead US Veteran/Ham question
A little different from the usual questions...
Curt KA2SLC, a former active member of this group, is now a Silent
Key. His body remains unclaimed by family. I have been told he is a
U.S. veteran, does anyone know of a veteran's groups that might
assist in getting a veteran a decent burial?
Andy K3UK
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Re: [digitalradio] Dead US Veteran/Ham question
Thanks. It seems that since he never joined some of the veteran's organizations, he is ineligible for their assistance in this regard. Andy K3UK On 6/1/07, Howard Brown [EMAIL PROTECTED] wrote: I searched the American Legion for Service Officers in New York and got: *FOR CLAIMS* *JOHN W KAVANAGH* AMERICAN LEGION DEPT SVC OFF 245 W HOUSTON ST RM 315A NEW YORK, NY 10014 PHONE: 212-807-3066 FAX: 212-807-4029 EMAIL: [EMAIL PROTECTED] *ANTHONY DRUZBIK JR* AMERICAN LEGION DEPT SVC OFF 130 S ELMWOOD AVE STE 614 BUFFALO, NY 14202-2479 PHONE: 716-857-3361 FAX: 716-857-3488 EMAIL: [EMAIL PROTECTED] Maybe they can be of service? Howard K5HB PS: KA2SLC is listed in New York - Original Message From: Andrew O'Brien [EMAIL PROTECTED] To: digitalradio@yahoogroups.com Sent: Friday, June 1, 2007 3:37:15 PM Subject: [digitalradio] Dead US Veteran/Ham question A little different from the usual questions... Curt KA2SLC, a former active member of this group, is now a Silent Key. His body remains unclaimed by family. I have been told he is a U.S. veteran, does anyone know of a veteran's groups that might assist in getting a veteran a decent burial? Andy K3UK
Re: [digitalradio] Dead US Veteran/Ham question
I may be wrong but I think the American Legion will try to help any veteran,
member or not.
Howard
- Original Message
From: Andrew O'Brien [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Friday, June 1, 2007 6:22:54 PM
Subject: Re: [digitalradio] Dead US Veteran/Ham question
Thanks. It seems that since he never joined some of the
veteran's organizations, he is ineligible for their assistance in this regard.
Andy K3UK
On 6/1/07,
Howard Brown [EMAIL PROTECTED] wrote:
I searched the American Legion for Service Officers in
New York and got:
FOR CLAIMS
JOHN W KAVANAGH
AMERICAN LEGION DEPT SVC OFF
245 W HOUSTON ST RM 315A
NEW YORK, NY 10014
PHONE: 212-807-3066
FAX: 212-807-4029
EMAIL:
[EMAIL PROTECTED]
ANTHONY DRUZBIK JR
AMERICAN LEGION DEPT SVC OFF
130 S ELMWOOD AVE STE 614
BUFFALO, NY 14202-2479
PHONE: 716-857-3361
FAX: 716-857-3488
EMAIL:
[EMAIL PROTECTED]
Maybe they can be of service?
Howard K5HB
PS: KA2SLC is listed in New York
- Original Message
From: Andrew O'Brien [EMAIL PROTECTED]
To:
digitalradio@ yahoogroups. com
Sent: Friday, June 1, 2007 3:37:15 PM
Subject: [digitalradio] Dead US Veteran/Ham question
A little different from the usual questions...
Curt KA2SLC, a former active member of this group, is now a Silent
Key. His body remains unclaimed by family. I have been told he is a
U.S. veteran, does anyone know of a veteran's groups that might
assist in getting a veteran a decent burial?
Andy K3UK
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[digitalradio] Amateur Radio Technology Day - Saturday 2 June - California
AM-TECH-DAY - Saturday 2 June 2007 - CALIFORNIA Amateur Radio Technology Day is an open monthly event for ham radio, technology, portable operation, a watering hole for all hams, and a great meeting place for hams in California. This month includes presentations on Software Defined Radio, and WSJT weak signal modes. Everyone is welcome, attendance is free. Picnic tables for radio set ups... trees and lawns for antennas... forums and presentations in the auditorium. Food: Grilled hot dogs, kabobs, donuts, drinks, snacks, etc. 73---Bonnie KQ6XA AM-TECH-DAY Location: SLAC - Near Palo Alto CA, USA Talk in: N6NFI Repeater: 145.230- PL=100 WEBSITE for Am-tech Day: http://www.fars.k6ya.org/amtechday/ There are usually several portable and backpack HF stations set up at Amateur Radio Technology Day. It is the perfect chance to meet other HFpackers in person, see new equipment, exchange new ideas, tell stories, and operate radios. The presentations on all kinds of ham radio subjects in the academic-style auditorium are always interesting. We set up radios on the picnic tables and put up antennas in the trees or temporary poles in the grassy area. We can put our radios on the tables just inside the building's patio doors and run feedlines (100ft to 200ft coax) out to the normal antenna areas. MAP: http://www.fars.k6ya.org/amtechday/images/slacmap.png GOOGLE EARTH: http://www.hfpack.com/qth/AMTECHDAY.kmz N 37.419830 W 122.204568 Am Tech Day Panofsky Auditorium Presentations SDR-1000 FLEX-5000 Software Defined Radios 1:00 PM Rick Huisman, N6DQ Rick will revisit and review the operation capabilities of the FlexRadio corporations Software Defined Radio, the SDR-1000. Additionally, he will demonstrate the remote control ability of the rig by operating the unit, located in his San Carlos shack, from the Panofski Auditorium at SLAC. The new FLEX-5000 series of Software Defined Radios will also be reviewed with images and data initially supplied to participants at the recent Dayton Amateur Radio Convention. Learn about both radios from someone with years of practical experience working with FlexRadio products. WSJT Digital Modes (Weak Signal Communication by K1JT) Round Table Discussion 2:00 PM Dave Hartzell, N0TDG With a strong interest in WSJT, Dave presents an overview of the subject through an introduction using slides and software, then works as a moderator for a round table discussion on the subject with the participants in the audience. Gain the maximum collective knowledge of the subject by sharing your digital experiences with of those from this on-site group, or just come and listen. Some of the elements involved in WSJT include FSK 441, JT6M, JT 65, and EME Echo.
Re: [digitalradio] Dead US Veteran/Ham question
Call your local VFW or American Legion Post. They would have a Service Officer who can help. Thank you for your concern. Sam Cook, AC0OK, Milan, MO Vietnam Veteran, VFW Life Member Andrew O'Brien wrote: A little different from the usual questions... Curt KA2SLC, a former active member of this group, is now a Silent Key. His body remains unclaimed by family. I have been told he is a U.S. veteran, does anyone know of a veteran's groups that might assist in getting a veteran a decent burial? Andy K3UK
[digitalradio] re: Here's a silly thought.
My expericnce, I run any where from 15 to 45 watts on psk31 about 85% of the time and when the bands are poor or the dx seems to be pointed the wrong direction I crank my power in about 5 to 10 watts steps untill they either hear me or I run out of power lol. I have peaked 150 watts psk31 on 20 m at 4 am central time trying to work a dx that was 10 over 9 here but i was 22 to 33 at his qth, after i raised power, he didn't hear me at all untill i broke 100 watts and got 50% copy after 150 watts. -- Matthew A. Chambers, W1JEQ ARES Official Emergency Station NEMO ARC Activities Director Macon ARC and ARRL Member since 2003 Quoting Peter G. Viscarola [EMAIL PROTECTED]: A perennially interesting topic. I hope the more experienced operators here aren't sick to death of discussing it yet, and are willing to give me some guidance. Absolutely spot on Erick. That is one reason that we try to tell new people, on the digital bands, to start with as few watts as they can. Agreed. One should ALWAYS use as few watts as possible to establish reliable communications. There is just no reason to run 100 watts ( and I expect some run more) on the PSK, etc. digital modes. Everytime I say that though, someone jumps in the Wl I'm far from an expert, OK? I've only a few months and a few hundred QSOs experience in digital modes. And I realize that there are lots of folks who've gotten DXCC running QRP to a wire hanging out their window (I just read about a JA ham who works 500 milliwatts to a dipole on his 11th floor balcony). BUT... I can tell you from experience that when I'm in a contest, or trying to crack a DX pileup, putting 40W into my dipole often just doesn't do it. Often I can hear the DX, but they can't hear ME. Or I get repeated QRZ de... replies. Even on PSK31. OTOH, if I crank to 85W or 100W or so, the DX can hear me, I get the QSO, and my IMD meter still reads around -30db. Say it's only 3dB difference if you like, but I've repeatedly seen better results in contests and pileups with 80W than 40W. This is PARTICULARLY true with RTTY, where I've cranked it up to a couple of hundred watts when necessary. Let me hasten to add: I certainly DO NOT want to be an discourteous operator, and I ONLY wish to operate my station in accordance with best practices. Seriously. So, how does one reconcile the oft-repeated mantra only run 25W or 40W with my experience? Am I *really* bothering my fellow hams, or operating outside the bounds of acceptable practice, if I crank my PSK31 output to 85W to get a new one, when my signal is clean and my measured IMD is low? If my (strong but clean) signal captures somebody's AGC should they not simply narrow/change their IF bandwidth to eliminate the strong signal (heck, when in a PSK31 QSO I often narrow down to 50Hz just for this purpose). If they see sidebands due to receiver overload or lack of sound card dynamic range, is that a problem with MY station? I'm not trying to be argumentative here, rather I'm curious about other people's experiences and advice. de Peter K1PGV
[digitalradio] Activity on 20M
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 and using Fldigi 1.34. Antenna was an Inverted V st 25 ft. 73, Walt/K5YFW
Re: [digitalradio] Activity on 20M
Nice catches ! Andy. On 6/1/07, Walt DuBose [EMAIL PROTECTED] wrote: 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 and using Fldigi 1.34. Antenna was an Inverted V st 25 ft. 73, Walt/K5YFW
Re: [digitalradio] HFLINK Comments to ARRL on Development of New HF Digital Comm Protocols]
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 (HF) fading paths. This is not a Request for Proposals (RFP). II. Access Method: Is Orthogonal Frequency-Division Multiplexing (OFDM) the best candidate technology, or should other competitive technologies be considered? III. Data Rate and Bandwidth: What data rates/throughputs are achievable at various bandwidths up to 3 kHz bandwidth? IV. Adaptivity: What adaptive features should be considered, such as automatic adjustment of transmitter power, modulation waveform and coding, in order to maximize throughput and efficiency in two-way contacts? V. Robustness: What is achievable for reliable operation at power levels typical in the Amateur Radio Service and low signal/noise and interference ratios? VI. Error control: What are the appropriate applications of error control suitable for HF channels? For example, how should Repeat reQuest (ARQ) and Forward Error Control (FEC) be applied to two-way contacts and one-to-many (roundtable and bulletin) transmissions? VII. Activity Detection: What is an effective method of determining whether a frequency is busy prior to transmission? VIII. Operating System: What operating systems (such as Windows or Linux) are appropriate for Amateur Radio use with this protocol? IX. Hardware: What practical and affordable hardware platforms are suitable for amateur stations? Consider the use of personal computers with or without sound cards. Provide any information about the need for an additional box if needed. Did Bonnie's response answer these questions? Some of the response did and did very well. However, the first paragraph of the ARRL's message was...This is not a Request for Proposals (RFP). The recommendation of a specific protocol or set of protocols was not what was requested. As the college professor told his student during a test...just answer the question. We get to the point where we want to design what the airplane should look like and then determine what it can do and many times it doesn't meet our real needs. I would appear that a set of design goals or specification goals need to be defined meet the needs of amateur radio...an open-source (non-proprietary) data communications protocol suitable for use by radio amateurs over high-frequency (HF) fading paths. A desired format would be to specifically re-state the ARRL's question, provide current data/capabilities and then based on an assessment of current and future preceived capabilities, determine what future capabilities might be possible and if they might meet the needs of the amateur radio communnity. Too ofter those who deal consistantly with businesses/industry and governments are asked for request for proposals (RFP) and the government federal government is guilty of this...ask or seems to ask for an RFP when in realitity they are looking for a request for information (RFI). I believe that the ARRL is actually asking for the latter. The question may be do we want to go with what is currently available with its benefits and drawbacks (positive/negative attributes) or start with a clean slate? Since there is no need for adoption of a specific mode(s) to meet an ungent need, then we might well be advised to determine what our (amateur radio's) real needs are and start afresh...design from the bottom up...not the top down. 73, Walt/K5YFW bruce mallon wrote: OK so what we have here is a failure to communicate ? --- expeditionradio [EMAIL PROTECTED] wrote: Please click here to read the HFLINK recommendation comments: http://www.hflink.com/arrl/ Background On 22 Feb 2007, the ARRL announced that it seeks comments from amateurs concerning development of an open-source, non-proprietary, data communications protocol suitable for use by radio amateurs over HF fading paths. ARRL's announcement was discussed at length in the HFLINK Forum and via private correspondence. On 15 May 2007, HFLINK respectfully submitted comments in response to ARRL's announcement. Read on the web: http://www.hflink.com/arrl/ Regards, Bonnie Crystal KQ6XA HFLINK Founder
Re: [digitalradio] Dead US Veteran/Ham question
Andy, Did someone tell you that from the American Legion? Contacting the Service Officer is a good suggestion made earlier. We will help ANY veteran as much as we can although in this case there would be legal implications from local government. We along with other veterans organizations provide military honors at funerals. You do not have to be a member of the organization. The American Legion is an organization Chartered by Congress and has certain duties to carry out in support of veterans. Rick, KV9U Member and Officer of my local Post Andrew O'Brien wrote: Thanks. It seems that since he never joined some of the veteran's organizations, he is ineligible for their assistance in this regard. Andy K3UK
Re: [digitalradio] Dead US Veteran/Ham question
Rick, A local ham contacted the Veterans Affairs office in this county. Several hams in my local area are checking all the suggestions we have received so far, we also have a call in to our local Congressperson. Meanwhile, a ham well known to this group has emailed me privately and offered to cover the costs . We will explore options via veterans groups over the weekend but will take up this generous offer from a digitalradio member , pending review of the arrangements, if no other options are found. Andy K3UK On 6/2/07, Rick [EMAIL PROTECTED] wrote: Andy, Did someone tell you that from the American Legion? Contacting the Service Officer is a good suggestion made earlier. We will help ANY veteran as much as we can although in this case there would be legal implications from local government. We along with other veterans organizations provide military honors at funerals. You do not have to be a member of the organization. The American Legion is an organization Chartered by Congress and has certain duties to carry out in support of veterans. Rick, KV9U Member and Officer of my local Post Andrew O'Brien wrote: Thanks. It seems that since he never joined some of the veteran's organizations, he is ineligible for their assistance in this regard. Andy K3UK
