[digitalradio] Newbie to DigitalRadio - Couple of Questions
Hi All, My name is Kevin, ZL1KFM. I am starting to get back into digital modes after a number of years away from it. Before was mainly on VHF packet. Back then I had a AEA PK-232 multimode modem. Back then I loved this unit for it's many features. One of the features I liked was the ability to have the PK-232 decide what the digital signal was, Packet, Amtor, Rtty etc. Today I am using MixW, and Ham Radio Deluxe, which are great software packages, and have just recently downloaded Hamscope (But haven't tried it yet). But none of these have the feature to allow it to search and decide the type of digital mode it is. Maybe it's the number of different digital modes now out there that make this feature unusable, but is there something out there, or could it be added? Why I ask this is listerning around, I hear what I believe to be a Rtty, PSK or the others (listerned to the tones from some of the web sites) and I can not for the life of me to get them to decode. I even change the modes as it goes to see if this helps, in most cases I am unable to see anything. My success rate s about 20-25% I am using a Kenwood TS-480S, and using the Data connection for RX and TX to the computer. I get a good pattern on the waterfall, and can see strong signals when there. Anyway I will keep trying to get it working, then I will try my hand at transmitting. Thanks for any help you can send my way. Will hopefully get it working 100% soon. Regards Kevin, ZL1KFM
Re: [digitalradio] Newbie to DigitalRadio - Couple of Questions
Hello Kevin, But none of these have the feature to allow it to search and decide the type of digital mode it is. This question is classical and the answer must be always the same. For a precise type of modulation, you could extract some characteristics (speed, shift...). But there is not only one type of modulation nor only one type of coding. You can find BPSK, QPSK, MPSK (as for MT63) MFSK (Olivia...), OOK, IFK (Domino) Transmission can be analogical or digital. This problem of recognition is extremely complex. Perhaps in 50 years, with powerful neuronal computers, you will have programs which will tell you what modes will be on the band, but for instance it is impossible. Moreover, it would be a lot of work and enginners, and only a company could do this. Now, in Ham radio, we have in several programs (Fldigi, Multipsk) video ID (you see the name of the mode in the waterfall) or RS (Reed Solomon) ID (Identifier) which permits to identify a mode and its frequency (available with Multipsk). But of course you need to send previously to the transmission either the video or the RS ID. 73 Patrick - Original Message - From: Kevin To: digitalradio@yahoogroups.com Sent: Thursday, February 08, 2007 9:13 PM Subject: [digitalradio] Newbie to DigitalRadio - Couple of Questions Hi All, My name is Kevin, ZL1KFM. I am starting to get back into digital modes after a number of years away from it. Before was mainly on VHF packet. Back then I had a AEA PK-232 multimode modem. Back then I loved this unit for it's many features. One of the features I liked was the ability to have the PK-232 decide what the digital signal was, Packet, Amtor, Rtty etc. Today I am using MixW, and Ham Radio Deluxe, which are great software packages, and have just recently downloaded Hamscope (But haven't tried it yet). But none of these have the feature to allow it to search and decide the type of digital mode it is. Maybe it's the number of different digital modes now out there that make this feature unusable, but is there something out there, or could it be added? Why I ask this is listerning around, I hear what I believe to be a Rtty, PSK or the others (listerned to the tones from some of the web sites) and I can not for the life of me to get them to decode. I even change the modes as it goes to see if this helps, in most cases I am unable to see anything. My success rate s about 20-25% I am using a Kenwood TS-480S, and using the Data connection for RX and TX to the computer. I get a good pattern on the waterfall, and can see strong signals when there. Anyway I will keep trying to get it working, then I will try my hand at transmitting. Thanks for any help you can send my way. Will hopefully get it working 100% soon. Regards Kevin, ZL1KFM
[digitalradio] Re: Detecting Digital Modes [Was: Newbie to DigitalRadio - Couple of Questions]
All, HOKA program can detect a lot of digital modes. Regards, Lev (aa2aj) HOKA? What is it and where may it be found, please? -- Thanks! 73, doc, KD4E ~~ Projects: http://ham-macguyver.bibleseven.com Personal: http://bibleseven.com ~~
Re: [digitalradio] Newbie to DigitalRadio - Couple of Questions
Hi! Taken from HOKA Website: ** *CODE300-32 Standard Version € 4.500,00 Euro* Package include • Code300-32 Software on CD ROM • Printed user manual • Security key • 6 months free software update • 24 months warranty on hard- and software. *CODE300-32 Tool Kit for standard Version € 1.000,00 Euro * Package include o Serial output via RS232, o Bit stream Output in MIL modes o Editing of all code tables o Two channel audio input by LAN o Extra 6 months free software update Available from stock I think it's a bit pricey for amateur use! Regards On 2/8/07, Lev Slutsman [EMAIL PROTECTED] wrote: All, HOKA program can detect a lot of digital modes. Regards, Lev (aa2aj) *Patrick Lindecker [EMAIL PROTECTED]* wrote: Hello Kevin, But none of these have the feature to allow it to search and decide the type of digital mode it is. This question is classical and the answer must be always the same. For a precise type of modulation, you could extract some characteristics (speed, shift...). But there is not only one type of modulation nor only one type of coding. You can find BPSK, QPSK, MPSK (as for MT63) MFSK (Olivia...), OOK, IFK (Domino) Transmission can be analogical or digital. This problem of recognition is extremely complex. Perhaps in 50 years, with powerful neuronal computers, you will have programs which will tell you what modes will be on the band, but for instance it is impossible. Moreover, it would be a lot of work and enginners, and only a company could do this. Now, in Ham radio, we have in several programs (Fldigi, Multipsk) video ID (you see the name of the mode in the waterfall) or RS (Reed Solomon) ID (Identifier) which permits to identify a mode and its frequency (available with Multipsk). But of course you need to send previously to the transmission either the video or the RS ID. 73 Patrick - Original Message - *From:* Kevin [EMAIL PROTECTED] *To:* digitalradio@yahoogroups.com *Sent:* Thursday, February 08, 2007 9:13 PM *Subject:* [digitalradio] Newbie to DigitalRadio - Couple of Questions Hi All, My name is Kevin, ZL1KFM. I am starting to get back into digital modes after a number of years away from it. Before was mainly on VHF packet. Back then I had a AEA PK-232 multimode modem. Back then I loved this unit for it's many features. One of the features I liked was the ability to have the PK-232 decide what the digital signal was, Packet, Amtor, Rtty etc. Today I am using MixW, and Ham Radio Deluxe, which are great software packages, and have just recently downloaded Hamscope (But haven't tried it yet). But none of these have the feature to allow it to search and decide the type of digital mode it is. Maybe it's the number of different digital modes now out there that make this feature unusable, but is there something out there, or could it be added? Why I ask this is listerning around, I hear what I believe to be a Rtty, PSK or the others (listerned to the tones from some of the web sites) and I can not for the life of me to get them to decode. I even change the modes as it goes to see if this helps, in most cases I am unable to see anything. My success rate s about 20-25% I am using a Kenwood TS-480S, and using the Data connection for RX and TX to the computer. I get a good pattern on the waterfall, and can see strong signals when there. Anyway I will keep trying to get it working, then I will try my hand at transmitting. Thanks for any help you can send my way. Will hopefully get it working 100% soon. Regards Kevin, ZL1KFM -- The fish are biting. Get more visitorshttp://us.rd.yahoo.com/evt=49679/*http://searchmarketing.yahoo.com/arp/sponsoredsearch_v2.php?o=US2140cmp=Yahooctv=Q107Taglines=Ys2=EMb=50on your site using Yahoo! Search Marketing. -- Cumprimentos Salomão Fresco CT2IRJ If it works... dont fix it! Esta mensagem foi escrita com electrões 100% reciclados.
Re: [digitalradio] Newbie to DigitalRadio - Couple of Questions
The best way to identify the various audio sounds of the digital modes is to listen to examples on the internet: http://www.bcar.us/Digital%20Signals.htm#loran-c or http://www.kb9ukd.com/digital/ Then you can get some idea at least of the various modes and how they sound. Some modes have many different speeds, e.g., Olivia, DominoEX, etc., and I can not always be sure what speed they are running at. If both stations are using Multipsk, it is possible to turn on the RS ID for either transmitting or detection of an RS ID. If an RS ID signal transmits in the passband and you have the RS ID detection turned on, you will be moved close to zero beat and the mode will change to match the type of signal. If you use the Video ID, a FAX transmission will be made that crudely shows the mode and speed. I find the Video ID to be difficult to read at times. As time goes on, you will get much more adept at knowing the mode and maybe the speed, but sometimes you will not be able to decode something because you have not matched the speed, mode, and even sometimes whether it might be reversed tones. 73, Rick, KV9U Kevin wrote: I am starting to get back into digital modes after a number of years away from it. Before was mainly on VHF packet. Back then I had a AEA PK-232 multimode modem. Back then I loved this unit for it's many features. One of the features I liked was the ability to have the PK-232 decide what the digital signal was, Packet, Amtor, Rtty etc. Today I am using MixW, and Ham Radio Deluxe, which are great software packages, and have just recently downloaded Hamscope (But haven't tried it yet). But none of these have the feature to allow it to search and decide the type of digital mode it is. Maybe it's the number of different digital modes now out there that make this feature unusable, but is there something out there, or could it be added? Why I ask this is listerning around, I hear what I believe to be a Rtty, PSK or the others (listerned to the tones from some of the web sites) and I can not for the life of me to get them to decode. I even change the modes as it goes to see if this helps, in most cases I am unable to see anything. My success rate s about 20-25% I am using a Kenwood TS-480S, and using the Data connection for RX and TX to the computer. I get a good pattern on the waterfall, and can see strong signals when there. Anyway I will keep trying to get it working, then I will try my hand at transmitting. Thanks for any help you can send my way. Will hopefully get it working 100% soon. Regards Kevin, ZL1KFM
Re: [Bulk] [digitalradio] Re: Detecting Digital Modes [Was: Newbie to DigitalRadio - Couple of Questions]
Doc, Try Google. *HOKA* Electronic - The Netherlands - HF Data Decoder and Analyzer http://www.hoka.com/ *HOKA* Electronic, HF Data Communications Consultant, Data Analyzer and Decoder. www.*hoka*.com/ - 8kCached http://72.14.253.104/search?q=cache:yHpNNBnayzIJ:www.hoka.com/+hokahl=enct=clnkcd=1gl=usclient=firefox-a - Similar pages http://www.google.com/search?hl=enclient=firefox-arls=org.mozilla:en-US:officialhs=90wq=related:www.hoka.com/
[digitalradio] Re: Detecting Digital Modes
I use http://clusty.com and get the same results, when I am not racing against darkness during an outside project! I was preparing some stuff for HamCation and lacked the time to do a Clusty search. Besides, since someone posted the acronym it was fair to ask them to define it! :-) Chuck Mayfield - AA5J wrote: Doc, Try Google. *HOKA* Electronic - The Netherlands - HF Data Decoder and Analyzer http://www.hoka.com/ *HOKA* Electronic, HF Data Communications Consultant, Data Analyzer and Decoder. www.*hoka*.com/ - 8kCached http://72.14.253.104/search?q=cache:yHpNNBnayzIJ:www.hoka.com/+hokahl=enct=clnkcd=1gl=usclient=firefox-a - Similar pages http://www.google.com/search?hl=enclient=firefox-arls=org.mozilla:en-US:officialhs=90wq=related:www.hoka.com/ -- Thanks! 73, doc, KD4E ~~ Projects: http://ham-macguyver.bibleseven.com Personal: http://bibleseven.com ~~
Re: [digitalradio] Re: Detecting Digital Modes [Was: Newbie to DigitalRadio - Couple of Questions]
HOKA is compony that developes multi mode software decoder. Just search on HOKA and you get the info. Regards, Lev kd4e [EMAIL PROTECTED] wrote: All, HOKA program can detect a lot of digital modes. Regards, Lev (aa2aj) HOKA? What is it and where may it be found, please? -- Thanks! 73, doc, KD4E ~~ Projects: http://ham-macguyver.bibleseven.com Personal: http://bibleseven.com ~~ - Now that's room service! Choose from over 150,000 hotels in 45,000 destinations on Yahoo! Travel to find your fit.
[digitalradio] PSKMail Live CD
I finally got a copy of the Live CD which came from http://sharon.esrac.ele.tue.nl/pub/linux/ham/pskmail/ I couldn't get the ones on the other mirror servers to work. This is great. I now need to run it on this PC and fix the CD drive on the another PC I have, a Dell GX-150, and run it on that CD. I can't wait until I can get my computer connected to my RigBlaster and get on-the-air at least with Fldigi. FLdigi seems so simple to run and I think when I spend more time on PSKMail, it will also be nice. Thanks to Rein and all those who helped him on PSKMail and to Dave and his helpers on Fldigi...this is super software. Is there room to put the OpenOffice word processor on the Live CD and an OpenSource spreadsheet? Thanks 73, Walt/K5YFW
[digitalradio] W3SZ
Does anyone know the E-Mail address of W3SZ? I have been looking at the DSP SDR rig control and would like to know if it will control the SDR-1000 and if so, are there any special steps other than on his W3SZ web site. Thanks 73, Walt/K5YFW
[digitalradio] High speed Morse?
Just wondering if anybody here knows anything about high speed Morse. Seems like it was used in the 1940s, maybe earlier and later, sending Morse at speeds of 500 wpm or so. Transmission was from punched paper tape, and reception was on ink recorders; then operators transcribed the received messages to hard copy. The ARRL handbooks in the '40s and '50s had ads in the back for T. R. McElroy Co., and their line of keyers and ink recorders and other accessories. I'd like to know more about who used the technology, when and where it was used, modulation method, how much power, and what caused it to go into non-use. There is a little bit about it in the online book The Art and Skill of Radio Telegraphy where it was said to be used between the Army HQ station WAR and the various Army headquarters in 1940 or so.
Re: [digitalradio] High speed Morse?
Yes, the army and other services did use high speed Morse even into the early to mid 60s. I was a manual Morse operator, and the boys in the next room had the auto morse. They received with the same equipment we did, except in our case we used a Mill (all caps typewriter) and they had a paper tape with ink recorders that ran along like this -_--__- etc. (looked like squared off sine waves. The ops then sat and used the same Mills we did, to transcribe into letters. Sometimes I wondered if I made the right decision, passing manual morse copy at 30 wpm at school. The other guys just had to pass 5 wpm and they knew enough to transcribe from paper. HI. I cant speak for the power used in the transmissions, but back then 500 W to 1.5 KW were typical transmitters used at embassies and military stations, and it was just straight CW keying. Many governments in Africa and Asia, at that time, were still using Morse transmissions of this type, in all types of diplomatic and military transmissions. As Teletype became more and more available, it quickly slipped out of favor, even tho TTY was slower in transmission times, the messges got thru without the additional translatiions. Danny Douglas N7DC ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB all DX 2-6 years each . QSL LOTW-buro- direct As courtesy I upload to eQSL but if you use that - also pls upload to LOTW or hard card. moderator [EMAIL PROTECTED] moderator http://groups.yahoo.com/group/DXandTalk - Original Message - From: jhaynesatalumni [EMAIL PROTECTED] To: digitalradio@yahoogroups.com Sent: Thursday, February 08, 2007 10:43 PM Subject: [digitalradio] High speed Morse? Just wondering if anybody here knows anything about high speed Morse. Seems like it was used in the 1940s, maybe earlier and later, sending Morse at speeds of 500 wpm or so. Transmission was from punched paper tape, and reception was on ink recorders; then operators transcribed the received messages to hard copy. The ARRL handbooks in the '40s and '50s had ads in the back for T. R. McElroy Co., and their line of keyers and ink recorders and other accessories. I'd like to know more about who used the technology, when and where it was used, modulation method, how much power, and what caused it to go into non-use. There is a little bit about it in the online book The Art and Skill of Radio Telegraphy where it was said to be used between the Army HQ station WAR and the various Army headquarters in 1940 or so. Announce your digital presence via our DX Cluster telnet://cluster.dynalias.org Our other groups: http://groups.yahoo.com/group/dxlist/ http://groups.yahoo.com/group/themixwgroup http://groups.yahoo.com/group/contesting http://groups.yahoo.com/group/wnyar http://groups.yahoo.com/group/Omnibus97 Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.17.30/674 - Release Date: 2/7/2007 3:33 PM
[digitalradio] Re: High speed Morse?
Hi, Probably does not answer your question but high speed CW is still used alot for meteor scatter on vhf...moreso in Europe than in the US and Canada as it has been overshadowed by the various WSJT modes...I never used it but remember some extremely high speeds being used...perhaps recorded in some manner and decoded later? A net- search of hsms or high speed meteor scatter should get some hits if interested. I remember also a few using relatively high speed CW on HF with early computers back in the now-long-forgotten digital experimental days of the 80's...it worked well, better than our ASCII attempts hi 73 Bill N9DSJ --- In digitalradio@yahoogroups.com, jhaynesatalumni [EMAIL PROTECTED] wrote: Just wondering if anybody here knows anything about high speed Morse. Seems like it was used in the 1940s, maybe earlier and later, sending Morse at speeds of 500 wpm or so. Transmission was from punched paper tape, and reception was on ink recorders; then operators transcribed the received messages to hard copy. The ARRL handbooks in the '40s and '50s had ads in the back for T. R. McElroy Co., and their line of keyers and ink recorders and other accessories. I'd like to know more about who used the technology, when and where it was used, modulation method, how much power, and what caused it to go into non-use. There is a little bit about it in the online book The Art and Skill of Radio Telegraphy where it was said to be used between the Army HQ station WAR and the various Army headquarters in 1940 or so.
