Re: [digitalradio] Re: SDR Info request
Something like this ... https://www.changedetection.com/ ve3bdr From: Ted Antanaitis Sent: Tuesday, July 27, 2010 1:18 AM To: digitalradio@yahoogroups.com Subject: [digitalradio] Re: SDR Info request Softrock receiver and transceiver kits are ordered from this web site: http://www.kb9yig.com/ The kits sell fast when announced. Often tips when they will be available are posted on the Softrock40 group. Or you could use an automatic monitoring program to alert when the web page changes. Good luck, Ted WA7ZZB
Re: [digitalradio] Ubuntu - thank you
On Thu, Jul 29, 2010 at 12:22 AM, J. Moen j...@jwmoen.com wrote: I think you got some great answers, with the general theme that Linux is an excellent operating system AND people have written native Linux ham programs that also are excellent. Bottom line -- hams will be more than happy running Linux as their prime operating system. There was one replier who felt the need to denigrate Windows (You will be rewarded with inexpensive secure software that is very robust and stable. Something you never had with Windows and it's what makes Linux great.) That part is kind of hard to understand. My Win XP SP3 machine has never crashed, not even once over these many years. At work, our Vista machines never go down, except when Building Maintenance decides to cut power to the mains. And I have used wonderfully robust Windows programs for many years. You are either very lucky, very careful or you have serious malware and virus protection running on those machines. In the 1990's RainForestPuppy disclosed a vulnerability in all versions of Windows that was so severe that Microsoft had no choice but to respond with an operating system that literally could not run almost all previously written Windows software. That operating system was Vista. It's third incantation is Windows 7 (I count the second version as Vista SP2, the first version of Vista that actually was stable at all). It looks like Microsoft may have gotten it right with Windows 7. I like it a lot, but all previous versions of Windows were either buggy or rife with vulnerabilities, like needing to run with administrator privilege to install and run most software. It's not a secret that Windows systems are swiss cheese because of this whole group of issues. Closing our eyes to these problems doesn't make them go away. Running Windows without third party malware or virus protection will lead you to a disaster in a short amount of time. This is common knowledge. When you talk to people that are not experts in running computers, I bet you suggest to them to make sure their computer protected with virus and malware protection and that they are up to date and run often. None of this is necessary with Linux. I make my living supporting Windows systems for a Fortune 50 company. Tens of thousands of them. Yes, we keep them generally stable. But not without the cost of serious firewalling, malware detection, virus protection and policy administration. And even then, when a Windows system becomes unstable, our second line of defense after a few minutes of troubleshooting is to wipe the drive and reinstall, then reinstate just the data. We do this because it takes far too long to troubleshoot arcane issues and often simply wastes time. This is virtually never done on our Linux systems. The fact that Windows is both stable and robust does not mean I think Linux isn't. In fact, since I first read about Unix in 1977 and in the 80s played with various PC ports of Unix, and later Linux over the years, it's been fascinating to see this platform flourish and grow. It IS an excellent operating system. I'm glad you've had great luck with windows. My experience, as well as most everyone who runs Windows, is that without external support, it will fall down quickly and become a victim of malware or viruses. And if you run with administrative privileges, you have opened the door for anything that attacks you as a user to also attack the entire system. The very design of Unix and Linux prevents this kind of issue. But you did get the general point that expecting Linux or any other operating system to act like Windows is a poor stance that will make that operating system disappoint you because it doesn't meet your preconceived outcome.
AW: [digitalradio] Re: ROS v 4.8.X not spamming cluster - NOT
Marc . i agree that jose is as dummy . if you see his behaviour in some situations I do not wanna defend him (AS I DO NOT LIKE HIDDEN FUNCTIONS TOO) I just like the new mode as it works so well I just like experimenting with new toys That's all Sure it would be way easier if he had a lis and if he knew better how to invoke new stuff to the crowd I often asked him about some things that could be made better . but he has his own thoughts Some things in the soft came from my ideas (example distance calculation) It was ME that sent several dozen mails to users that I have seen in the cluster . just to tell them to shut the autospot off Days before it was ME that wrote how to stop the spotting with a firewall (in versions before there was no switch) Just to make pressure on jose to make that switch available . So I have some same thoughts as you and some are different If I see a pactor station in waterfall I do qsy . others may think ros does it even if there is some other mode on the qrg and send ontop of the pactor station but that's the fault of the user .. not of the developer I just hope that after some time ALL users shut off the spotting Just because I do not want that more and more cluster sysops block ros-spots Sending ontop other stations is not okay . agree 100x100 Jose made 3 qrg on 20m band to give more users a chance . As this mode goes around the blue marble with a few watts he programmed the 3 qrg on 20m Now we have only a few hundred users (yet) so when there are a few thousands the 3 qrg are a must I think Time will show it ... I see only low traffic on 115 most is on 103 and 112 so time will show if the third is needed If I look in the bandplan I see that automatic stations is upper limit 112 so maybe we shoud use the lower qrg for (low power)beaconing with ros and only 115 for keyboard to keyboard qsos Marc you said only one qrg on 20 for sstv??? I see traffic on 14230 as centre of activity . but also on 233, 236, 240(digi) Same story but other mode ... most traffic is on 230 in sstv .. As it is on 103 for ros And if there is more users on air or other modes using 103 I (and others) qsy to 112 and 115 Like the sstv gang is doing . traffic on 230 . move to 233 or 236 changing one's motives and mindset is a completely different matter... Right and well said Marc .. Not easy to change joses mind in some cases .. Sometimes friendly asking helps . sometimes you have to give him a kick in his back hi hi (see the sent mails by me as such a kick) I do not know him very well . just had some emails with him and I also do not like all he does . But now we have to live with what we have . just make it wise . Wait if there are other stations ... stay cool . I can wait if there is other traffic . as I know I can work the world with this mode there is no time pressure for me I worked vk4 with a few watts and so there is no next goal for me (so I often only monitor now) But others are new and so they are experimenting like I did in the first weeks 73 Sigi
[digitalradio] Hellschreiber Path Simulations
All, It's interesting to see how the various Hellschreiber modes print in the noise. There is a noticeable difference in contrast and character definition which is likely to affect the overall readability over HF. The disparity seems more apparent on-air than it does under the controlled environment of the path simulator. The image below (see link) illustrates the different characteristics of each mode after being subjected to the same level of white noise over a simulated channel. This is purely a sensitivity test - it does not show the affect of HF distortion. Hellschreiber comparison - http://www14.zippyshare.com/v/42533726/file.html Click image to enlarge. Test Software: IZ8BLY's Hellscreiber Path Simulation: White Noise -6db SNR Tony -K2MO
Re: [digitalradio] Hellschreiber Path Simulations
All, I received a couple of emails regarding the size of the Hellschreiber comparison image - the link below should make it easier to see. http://www14.zippyshare.com/v/42533726/file.html - click on the image to enlarge. Tony -K2MO On 7/29/2010 5:01 PM, Tony wrote: All, It's interesting to see how the various Hellschreiber modes print in the noise. There is a noticeable difference in contrast and character definition which is likely to affect the overall readability over HF. The disparity seems more apparent on-air than it does under the controlled environment of the path simulator. The image below (see link) illustrates the different characteristics of each mode after being subjected to the same level of white noise over a simulated channel. This is purely a sensitivity test - it does not show the affect of HF distortion. Hellschreiber comparison - http://www14.zippyshare.com/v/42533726/file.html Click image to enlarge. Test Software: IZ8BLY's Hellscreiber Path Simulation: White Noise -6db SNR Tony -K2MO __ Information from ESET NOD32 Antivirus, version of virus signature database 5324 (20100729) __ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
[digitalradio] TARA 2010 Grid Dip PSK-RTTY Shindig Contest
The Troy Amateur Radio Association (TARA) is pleased to announce the 8th annual running of its Grid Dip PSK-RTTY Shindig contest on 7 August 2010. Please see http://www.n2ty.org/seasons/tara_grid_rules.html for contest details. This is a unique HF (plus 6 meters) contest combining Grid Square multipliers and PSK-RTTY. 73, Tony Heatwole, N3FX
[digitalradio] PSKmail: jPSKmail-0.5.4 installers now available a
PSKmail: jPSKmail-0.5.4 installers now available at http://www.crusefalk.se/jpskmailinstall/ , including the new scanner ( http://pskmail.wikispaces.com/Client_scanning ). jPSKmail installers
