Re: [digitalradio] 30m 2.8KHz wide digital signal QRM
Hi Les, I can't say that I have heard any thing what you describe throughout the day, at the moment (18:40) there is a lot of noise around the frequences that you mention, one hell of a burst just happened. I will keep an ear open tomorrow on the band let you know if I hear anything. 73 Alan G3VLQ - Original Message - From: Les [EMAIL PROTECTED] To: digitalradio@yahoogroups.com Sent: Tuesday, October 23, 2007 4:13 PM Subject: [digitalradio] 30m 2.8KHz wide digital signal QRM Does anyone know who or what is responsible for the 2.8KHz wide digital signal currently operating around 10137.450KHz. The exchanges appear to take up to two minutes at a time and have a minutes break between each exchange. It is making operating between 10137.450KHz and 10140.200KHz impossible for long periods of time. Les G3VYZ Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/drsked/drsked.php Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.15.6/1086 - Release Date: 10/22/2007 19:57
Re: [digitalradio] Re: Need to Expand the HF Auto Band Segments
The point is that it is 24/7 emergency comms is not required or part of the amateur service. We over here have RAYNET which is not a un-attended automatic operation. You are welcome to your opinion, but the reality is, that we already have 24/7 access communications being provided on HF by automatic stations worldwide. And don't we know it !! Alan G3VLQ
Re: [digitalradio] New emcomm tool now available
Another one harping on about emergency services !!! I wonder if it is because they need to feel important ? - Original Message - From: [EMAIL PROTECTED] To: digitalradio@yahoogroups.com Sent: Thursday, October 18, 2007 3:13 PM Subject: [digitalradio] New emcomm tool now available Software for the Narrow Band Emergency Messaging System (NBEMS), is now available for testing. This system maximizes the use of radio amateurs for providing emergency communications. The system works with most soundcard-equipped computers and is completely contained on a Live CD (EMCpup), based on Puppy Linux (2.17), flarq (1.0) and fldigi (2.0), Every effort has been made to make the OS transparent to the user, so no Linux experience is required. The system has been in development for the past year and can be downloaded and burned to a CD from: http://www.w1hkj.com/emcpup.html under the link to the CD image. The goal of the NBEMS is just to be able to bridge a widescale disaster area of up to 100 miles, without any reliance on a centralized repeater network, or mailboxes, and use as little space as possible. NBEMS relies on the more traditional emergency message delivery and confirmation system (i.e. in person), by a receiving radio amateur, with message delivery by phone, Internet, cellphone SMS, or smoke signals, so urgent messages can never lie unnoticed in an email inbox. Since there ar e no automatically, or remotely controlled, transmissions used, the system can legally be used on any frequency where digital communications are allowed, but it is suggested to use a range of frequencies where PSK63 activity usually takes place, starting 2.5 KHz above the traditional PSK31 areas of operation on each band. Just 2.5 KHz of spectrum will be enough space for 25 PSK63 NBEMS stations, so all stations within range, that are within the IF passband of the typical SSB receiver, will be visible simultaneously on the waterfall display. As a result, it is simple for the station in the disaster area to pick a clear frequency or QSY if requested. PSK63 is fast enough for short messages, but if there are no immediately adjacent stations, and conditions permit, wider PSK125 or PSK250 can be used for increased delivery speed of long messages, attachments, or even small color images. The operator in the disaster zone simply transmits a unique beacon signal (which contain s his callsign). When a station outside the disaster zone (also equipped with NBEMS) notices the beacon signal and replies, a green diamond at each station will indicate when the two stations are connected, and the station callsigns will be displayed automatically. A beaconing station is easily identified by a unique appearance of its signal on the waterfall as a series of bursts. Two meters, where there is little QSB compared to HF, is recommended as the band of choice for normal emergency messaging in which a 100 mile range with small, portable, horizontally polarized, antennas is sufficient. In mountainous regions, or over longer distances, using larger NVIS antennas on HF can also be used, but sometimes with an increased delivery time due to additional automatic repeat requests. In either case, using VHF or NVIS HF, once a signal is discernable above the noise it will generally stay that way during the communication, so that multi-tone, weaker signal modes (which are wider and take up much more space), are not needed to fight QSB. Note that this is *not* an FM system, but a SSB system (for increased range) modulated by digital audio, and the convention for 2m SSB use is upper sideband with horizontally polarized antennas, not vertical antennas. Regular keyboard-to-keyboard, non-emergency communications, where error-free messaging is not essential, can be conducted with the same software using PSK63 or PSK31 - without using flarq. Many other keyboard-to-keyboard digital modes are also included with fldigi, as well as a logging program, rig control program, and a geodetic computer. To activate the NBEMS, the user simply inserts the NBEMS CD in his computer, reboots, and follows the instructions under the Emcomm desktop icon. Please give this system a try, encourage others to do so, and send any comments or questions to: [EMAIL PROTECTED] . nbsp; 73, NBEMS Development Team KH6TY, Skip and W1HKJ, Dave -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.15.0/1077 - Release Date: 10/18/2007 09:54
Re: [digitalradio] Re: Need to Expand the HF Auto Band Segments
Are you telling me that if US Amateurs didn't setup an amateur emmcom then no-one would get a licence ? When was that introduced ? I worked US amateurs long before this was thought of. Anyway, even if it is the case, why should it be inflicted on the rest of the amateur community? This reminds me of the hoo-ha when the CB'ers started over here in the 70's, they setup an emergency group (can't remember what it was called now), no-one asked them to do so it was quite unnecessary, as far as I know it was never used died out when the CB'ers faded into oblivion,but it made them feel important wanted,poor things, flying around on their motorbikes or cars with a sign on. Alan G3VLQ
Re: [digitalradio] Why Amateur EmComm?
That may be ok for you in the US for the FCC but don't expect other amateurs to be very pleased when these un-attended automatic stations open up on the frequency that they are using. As a license holder I can inflict almost anything I want on the entire amateur community within the scope of the regulations. If I and another ham want to put up a continuous exchange of digital communications 24/7 on a frequency we can do so. I am not inclined to do this Does not inclined to do this mean that you would do it if you felt inclined? Alan G3VLQ
Re: [digitalradio] Re: Introducing The Complete Bozo's Guide To HF JT65A
Andy, I have the version 5.9.6 r309 but I can't get a second waterfall ??? Alan G3VLQ - Original Message - From: Andrew O'Brien [EMAIL PROTECTED] To: digitalradio@yahoogroups.com Sent: Monday, April 09, 2007 11:36 AM Subject: [digitalradio] Re: Introducing The Complete Bozo's Guide To HF JT65A --- In digitalradio@yahoogroups.com, merv0728 [EMAIL PROTECTED] wrote: Andy, in your excellent explaination of this mode you say that if I click 'View/Specjt' I will get a second waterfall. I don't. What version are you using, I have the latest ? Alan G3VLQ I am using 5.9.6 , the SpecJT can also be invoked by pressing F10. In earlier versions they had a separate application, Spectran.exe Andy K3Uk 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: 7.5.446 / Virus Database: 269.0.0/752 - Release Date: 4/8/2007 20:34
Re: [digitalradio] Re: Introducing The Complete Bozo's Guide To HF JT65A
Hi John,thanks for the input. I think I might be confused, I thought Andy meant a second SPECJT Window. When I open WSJT it loads 3 windows, the Dos window,WSJT 6 Specjt, the SPECJT window is a different waterfall to the one Andy displayed in his article. It is a vertical scrolling display with Red time figures down the left hand side Green horizontal lines at each minute. I can't get my Print Screen to work for some reason so can't give a picture. 73 Alan G3VLQ
Re: [digitalradio] Re: 3580kHz-3600kHz Freq Coordination Info
I entirely agree with you Joe. As far as I know we don't have automatic sub bands here but we still get stomped on by Pactor 3 popping up on top of QSOs. The emergency traffic tale is just used to justify the use of these infernal automatic stations. Alan G3VLQ - Original Message - From: Joe Ivey To: digitalradio@yahoogroups.com Sent: Thursday, March 08, 2007 9:41 PM Subject: Re: [digitalradio] Re: 3580kHz-3600kHz Freq Coordination Info I have yet to understand why the FCC allowed automatic stations on the ham bands in the first place. I hate to see ham radio being used as an internet email service that in 99% of the case the mail is not related to ham radio. I think that 99% of the ham support handling emergency traffic and would stay clear of any frequency that was being used for such a purpose. A lot of people including hams do not really understand the term emergency traffic. Simply put it means the threat to life, injury. and property. 99.99% of all emergencies are confined to a general local area. It very rare that one needs to send traffic from the west coast to the east coast or Washington DC. Ham radio serves a great purpose in these cases and we as operators should help out when we are needed. But for someone out in his boat just wanting to check is email should not be allowed on the ham bands. My 2 cents worth. Joe W4JSI - Original Message - From: Jose A. Amador To: digitalradio@yahoogroups.com Sent: Thursday, March 08, 2007 1:41 PM Subject: Re: [digitalradio] Re: 3580kHz-3600kHz Freq Coordination Info Rich Mulvey wrote: Kurt wrote: I'm afraid that there is no simple solution to the problem of who is working what mode where. But each operator must be diligent to try as best possible not to QRM another signal on the portion of the band that they are working. If others are not hidden to him by distance or propagation. Walt and others this is the problem. We are required to check to make sure the freq is not busy and to not interfer with other communications, if we hear them. Big IF Yet WinLink is automatic and never checks before it starts transmitting. This has been said here more than enough times. Winlink response is triggered by a user who calls the station and most likely does not hear the others. So who is at fault the operator in qso on a certain freq, or the automatic station that comes on over the qso in progress. The automatic station is triggered to answer. Or should it remain silent, as if it were deaf to the calls because others are hidden to the station calling the Winlink station ? I wonder why someone would choose the frequency of such an automatic station to park on... ignorance (of published lists, I mean) would be the most likely excuse. Both attitudes should be questionable. Because ignorance does not excuse you of obeying laws, even those you don't know. Tell that to the policemanif he is a nice guy, he will let you go...he, he... didn't you know? C'mon... It has not the same weight, but it bears resemblance, at least to me. Simple logic would say that the automatic station is wrong, I would say simplistic logic, the victims logic. but it seems that FCC/ARRL/IARU if not others, do not care if the automatic station comes on over the stations already in qso. Triggered by someone hidden to those in QSOhow would he know? Being this is the digital radio, maybe somewhere down the road a programmer will get a program going that will listen before it transmits, but I guess I will continue to use the computer between my ears to make sure the freq is not busy. Even when you do that, there will be always some possible hidden station around you. How an arbitrary, even mistuned signal, could be positively identified from noise? What is a signal? What is noise? How would YOU program that? Or it should be some anti vox triggering the brakes even by the hint of a cat's meow ? Hey it's an old computer but still works great. Imagine if we were to be trashed as PC's are when we get two years oldughh !!! It's quite clear that automatic stations in the automatic sub-bands are not going away. But hey - let's try something truly radical: How about - wait for it, this is truly a novel idea - how about manually operated stations operate somewhere away from the automatic subbands? Guess this is a really novel idea, a big discovery for quite a few. I know, I know, just because there are *wide* swaths of practically unused frequencies that are legally available for use for digital modes doesn't mean that they're any fun to use. It's *much* more entertaining to work *within* the
Re: [digitalradio] Europe and IARU Region 1 Auto Sub-Bands
Hi Bonnie, I stand corrected but :- Unmanned transmitting stations: IARU member societies are requested to limit this activity on the HF bands. It is recommended that any unmanned transmitting stations on HF shall only be activated under operator control except for beacons agreed with the IARU Region 1 beacon coordinator, or specially licensed experimental stations. Alan - Original Message - From: expeditionradio [EMAIL PROTECTED] To: digitalradio@yahoogroups.com Sent: Friday, March 09, 2007 2:51 PM Subject: [digitalradio] Europe and IARU Region 1 Auto Sub-Bands Alan Tindal G3VLQ wrote: As far as I know we don't have automatic sub bands here but we still get stomped on by Pactor 3 popping up on top of QSOs. Hi Alan, The 80 metres auto sub-band for IARU Region 1 is 3590kHz to 3620kHz. (europe/africa/mideast/russia) automatically controlled data stations, unattended It is 10kHz bigger than the 80m auto sub-band for USA. You can view the IARU Region 1 bandplan at http://www.hflink.com/bandplans/region1_bandplan.pdf 73---Bonnie KQ6XA Yahoo! Groups 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: 7.5.446 / Virus Database: 268.18.8/714 - Release Date: 3/8/2007 10:58
Re: [digitalradio] Re: SignaLink USB
Hi Simon, I presume from what you say that you have ordered the new USB Signalink and would like to know what you were told about the necessary cables, were you told that the price included the cables or you had to buy the cables seperately ? The dealer I spoke to regarding this said the cables were extra but from the Tigertronics site I understood that the price is inclusive of cables. Alan G3VLQ - Original Message - From: Simon Brown [EMAIL PROTECTED] To: digitalradio@yahoogroups.com Sent: Thursday, January 18, 2007 7:20 PM Subject: Re: [digitalradio] Re: SignaLink USB Has anyone found out what the soundcard chip is? I'll have one in a few weeks and am interested in the performance. Simon Brown, HB9DRV (GD4ELI March 2nd - 12th 2006) - Original Message - From: adhollander61 [EMAIL PROTECTED] While we're on the topic of the SignaLink USB, has anybody tested it out yet under Linux? I know the page on the SignaLink site doesn't list Linux as being supported, but if the USB sound interface in the unit is standard enough, it might well work. 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: 7.5.410 / Virus Database: 268.16.14/636 - Release Date: 1/18/2007
Re: [digitalradio] Re: Trends in Frequencies for 40m Digi Keyboarding
Well Bonnie I don't know why your not hearing digi activity down at 7.030 - 7.040. In a half hour listening down on those frequencies I copied 24 different callsigns, in this part of the world all the digi activity is between those frequencies. 73 Alan G3VLQ - Original Message - From: Roger J. Buffington [EMAIL PROTECTED] To: digitalradio@yahoogroups.com Sent: Wednesday, January 03, 2007 3:19 AM Subject: Re: [digitalradio] Re: Trends in Frequencies for 40m Digi Keyboarding expeditionradio wrote: Considering USA's recent diminishment of the data subband segment on 40 meters, the projected increase in the number of Extra operators, the declining use of morse CW in the world, and the increasing use of digital keyboarding, the trend is heading toward more digital keyboarding being used in USA in the 7020kHz-7040kHz part of the 40m band, especially for DXing. This is compatible with bandplans and actual use of digi keyboarding in the rest of the world. The newer keyboarding modes are able to decode better than -13dB SNR, so this makes low power DXing a reality for the average USA ham on 40 meters. Throughout most of the world, 7040-7100kHz is filled with QRO SSB. The SSB QRM makes 7040-7100kHz somewhat uncompatible with low power and weak signal digi keyboarding DXing. 73 Bonnie KQ6XA The above is news to me. I rarely hear any digital signals on 40M much below 7.065. The bulk of keyboard digital activity seems to take place from about 7.069-7.075 or so. If there is a trend towards digital qsos down around 7020-7040 it is not discernible. It is true that SSB from countries that permit it around 7070 is sometimes a problem, but I sure haven't noticed a trend towards USA ham using the digi modes moving down around 7020-7040. de Roger W6VZV Suggested Calling/Beaconing Frequencies: 17M: 18103.4 20M: Primary:14.078.4 Secondary: 14.076.4 Digital Voice: 14236 30M Primary:10.142 Secondary 10.144 40M Region 2: 7073 Region 1/3: 7039 80M Primary : 3583 Secondary: 3584.5 Announce your presence via our DX Cluster telnet://cluster.dynalias.org Yahoo! Groups Links -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.409 / Virus Database: 268.16.2/613 - Release Date: 1/1/2007
