RE: [digitalradio] Contest again
Anyone at any time can sponsor a contest. It does not take up that much of the banc but it does take a lot of the RTTY portion if you are going to use that. Some like it and some don't but that is the way it is. Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' EN34rb Hierro Candente, Batir de repente -Original Message- From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of Steinar Aanesland Sent: Sunday, January 18, 2009 6:07 AM To: digitalradio@yahoogroups.com Subject: [digitalradio] Contest again Arrrgh! RTTY contest again :( How is the rules for organizing a contest ? Can everyone (clubs or individuals) , on their one, decide to block a big part of the band? LA5VNA Steinar Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Yahoo! Groups Links
RE: [digitalradio] Icom Cat Cable Driver?
I assume that program soes automatically the tyupe of thing I was talking about. It is good that such a program exists, it surely makes it easier J Glad you got it going and GL. Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' EN34rb Hierro Candente, Batir de repente From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Tony Sent: Saturday, November 22, 2008 12:24 AM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] Icom Cat Cable Driver? Gil, Thanks for the info. Solved the problem using a program called Unknown Device Identifier. See link below. http://www.zhangduo.com/udi.html Tony, K2MO rojomn wrote: If you have not tried it yet , give it a try. In many cases the driver will be in XP or the generic driver built in will work. If not, and if you don't get information from plugging in the cable you may just be out of luck. Remember that often you can plug the cable and it will identify itself to windows and you can see it using Control Panel and or System Information. If you determine the ID you probably can download a driver. Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' EN34rb Hierro Candente, Batir de repente -Original Message- From: digitalradio@yahoogroups.com mailto:digitalradio%40yahoogroups.com [mailto:digitalradio@yahoogroups.com mailto:digitalradio%40yahoogroups.com ] On Behalf Of Tony Sent: Friday, November 21, 2008 7:41 PM To: digitalradio@yahoogroups.com mailto:digitalradio%40yahoogroups.com Subject: [digitalradio] Icom Cat Cable Driver? All, Have a USB CAT cable for an Icom 706MkIIG and need the driver for it. There's no name on the cable so I have no idea who the manufacturer is. Is there a generic driver I can use? Running Windows XP. Thanks, Tony, K2MO Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Yahoo! Groups Links
RE: [digitalradio] Finally coming in to the Blackberry age... Ham apps ?
Your chances would have been better with an iPhone which has an open development interface. I see nothing of that sort for BlackBerry. Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' EN34rb Hierro Candente, Batir de repente From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Andrew O'Brien Sent: Saturday, November 22, 2008 9:09 AM To: DIGITALRADIO Subject: [digitalradio] Finally coming in to the Blackberry age... Ham apps ? After years of being the one in the family to get the hand-me-down cell phones, I got tired and picked up a Blackberry Storm yesterday.My contract has no limits on data transferred. Blackberries stay connected to the Internet . So, what amateur radio uses can I get out of a smart phone? I see some people here posting from their Blackberry, any tips for email managing ? How about various amateur radio alerts, rare DX, propagation news, via a smart phone?? Of course, it would be nice to see a digital mode use for these phones but i assume that is a few years away. -- Andy K3UK
RE: [digitalradio] Icom Cat Cable Driver?
If you have not tried it yet , give it a try. In many cases the driver will be in XP or the generic driver built in will work. If not, and if you don't get information from plugging in the cable you may just be out of luck. Remember that often you can plug the cable and it will identify itself to windows and you can see it using Control Panel and or System Information. If you determine the ID you probably can download a driver. Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' EN34rb Hierro Candente, Batir de repente -Original Message- From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Tony Sent: Friday, November 21, 2008 7:41 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] Icom Cat Cable Driver? All, Have a USB CAT cable for an Icom 706MkIIG and need the driver for it. There's no name on the cable so I have no idea who the manufacturer is. Is there a generic driver I can use? Running Windows XP. Thanks, Tony, K2MO Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Yahoo! Groups Links
RE: [digitalradio] Re: New Hams and New Digital Technology
HEAR HEAR! Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' EN34rb Hierro Candente, Batir de repente -Original Message- From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Dave Bernstein Sent: Saturday, June 21, 2008 1:48 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] Re: New Hams and New Digital Technology AA6YQ comments below --- In digitalradio@yahoogroups.com, expeditionradio [EMAIL PROTECTED] wrote: Dave, AA6YQ wrote, The amateur radio's community rapidly adopted PSK31 once panoramic reception on soundcard-equipped PCs became available. When the dogs don't like the dogfood, its a mistake to blame the dogs... A more accurate ham radio dogfood analogy would go like this: I went to feed the puppies and a pack of old wolves attacked me along the way. I ended up in the hospital, and the starving puppies were eaten by the wolves. Most innovative new ideas are vigorously attacked, Bonnie -- unless they are so obviously flawed or irrelevant that they are just ignored. In the domain of engineering, these attacks are an essential part of the process by initial concepts become pragmatic solutions. The successful innovator not only tolerates such criticism, he or she actively solicits it. In today's web 2.0 speak, this is the wisdom of crowds; 50 years ago, it was if you can't stand the heat, get out of the kitchen. Let's face it, the majority of ham radio is still stuck in the mid 20th Century. Simply put, PSK31 is a flavor of RTTY: same keyboarding concept, but weaker signals. Adding an esoteric feature like your example of panoramic reception software to spice up an old recipe is cute. But, it isn't a significantly different method of operation... still RTTY :) This paragraph exposes a passel of personal prejudices, Bonnie. It also contains a solid helping of guilt by association, reminiscent of Professor Howard Hill's warning against the game of Pool which starts with P which rhymes with T which stands for Trouble. Just because PSK31 offers real-time keyboard-to-keyboard QSOs doesn't mean that its users are stuck in the 1950s any more than the use of cellphones for real-time voice communication means that most of the world's population is stuck in the 1920s. Your dismisal of panoramic reception as cute misses a critical point. Peter G3PLX's initial PSK31 implementations -- the first of which required special purpose hardware, and the second of which ran on a PC but was difficult to use -- achieved little in the way of adoption. It was the addition of panoramic reception that pushed PSK31 past the tipping point of broadscale adoption. Would the addition of panoramic reception to RTTY have pushed RTTY into broad scale usage? Probably not (we can discuss this on another thread, if there's interest). The non-linear positive results generated from an effective implementation of just the right ideas are sought after in many domains; the Douglas DC3 aircraft is a oft-cited example of the same effect in aeronautics. Anyone interested in the acceptance of innovative new ideas for broad acceptance by the amateur radio community would be well served to understand this effect, rather than write off an essential ingredient as cute. But, to see this as a mode or software creation issue, is missing the point totally. The real issue is not what digital modes we operate or bring out or what features are in the software we use, or how existing hams are using modes. The important thing is: How we can change what has heretofore been considered socially acceptable in the ham community: bad public attitudes toward creative new and useful technology paradigms. You mistake criticism of new ideas for bad attitude. The rapid adoption of PSK31 by the amateur community proves that it presents no impenetrable obstacles to the uptake of good ideas and useful technologies when implemented in a useable manner. However, bad ideas and flaws in good ideas will be mercilessly exposed, -- as they must be if the process of innovation is to succeed. A blatant example was what we saw with abolition of morse testing. If the old morse test wasn't enough to scare away the first generation of computer-raised youngsters, then the next generation of web kids was turned off by the vitriol spewed by those who fought to keep ham radio locked in the 19th Century. Yes, wistfullness can be a problem. Normally this dies off with each generation of users, but licensing requirements can prolong the agony by an extra generation. It means that new innovations must be incrementally more useful and valuable to overcome generational friction. PSK met this challenge, and SDR appears to be well on its way. Hand-wringing over the fact that it isn't as easy as it ought to be is a distraction from the work at
RE: [digitalradio] USB - RS232 adapter for Vista 64bit?
Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' Hierro Candente, Batir de repente -Original Message- From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Rick Sent: Friday, May 09, 2008 8:45 AM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] USB - RS232 adapter for Vista 64bit? Hi Peter, The Prolific company seems to make a very large number of these adapters that are then branded with different companies names. The old (large and expensive) Radio Shack USB adapter (about $40 here in the U.S.) was from this company. I am sure these products are available world wide. The older adapters may not have new drivers developed for Vista, but when I purchased a recent design, that has the electronics built in to the 9 pin connector, it came with a mini disk with drivers. This worked FB for XP, but when I tried to use it for Vista, the computer would reject the attempt to load the disk. I was quite concerned at first, until I realized that Vista automatically identifies this product and no driver is even needed. One of the nice features of Vista that at least some may not be aware. This is called plug and play and works for XP too. The reason you needed the disk for XP is that XP had no built in driver or the disk had a newer better one. MANY devices can be added to an XP system without adding any drivers. This adapter cost me around $20 including shipping. I have seen them advertised for as low as $12 plus shipping and are much better for portability. Some of them may have very short cables, barely over a foot long, so for rig control you will likely need a few additional feet of extension cable for the RS-232 side. I think that Linux also supports many of these adapters, but I currently removed Linux yet again from my computers as it just can not compete with XP for practical use with ham programs, and definitely can not compete with Vista when it comes to the highest quality font and image rendering on my systems. Incidentally, I burnedan iso from the new OpenSolaris Live and that seemed much better than Linux variants in terms of image quality. Even could handle my high end HP tower with Nvidia chipset. But then again, the problem is that I could not run my ham software, which is something I am really not willing to give up. 73, Rick, KV9U Peter Frenning [OZ1PIF] wrote: My new LapTop (Zepto 6625WD), like most new ones, has no RS232 port, so, in order to PTT my radio (FT-847 - no VOX!), I need an USB to RS232 adapter. The one I have (Belkin F5U103V) has no Vista 64bit support (no drivers available and none planned that I know of). Anybody in similar jam with a tested solution? It wouldn't hurt if was also supported by Ubuntu Linux either. Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Check our other Yahoo Groups http://groups.yahoo.com/group/dxlist/ http://groups.yahoo.com/group/contesting http://groups.yahoo.com/group/themixwgroup Yahoo! Groups Links
RE: [digitalradio] Re: 30 Meter QRP Weekend April 19th 20th
How true. The 10 MHz region is the only place with strong signals lately. WWV is 10 over 9 but only here. Everything else is barely moving the meter. Sunspots come on down ! Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' Hierro Candente, Batir de repente -Original Message- From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of kh6ty Sent: Friday, April 11, 2008 1:09 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] Re: 30 Meter QRP Weekend April 19th 20th If everyone who thought 30m was dead just called CQ, that opinion might change very quickly! Try it! It is a time-honored technique! ;-) 73, Skip KH6TY Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Check our other Yahoo Groups http://groups.yahoo.com/group/dxlist/ http://groups.yahoo.com/group/contesting http://groups.yahoo.com/group/themixwgroup Yahoo! Groups Links
RE: [digitalradio] Amp for sale on Ebay
It does not give dimensions but looks larger than the old Collins KW1. I wonder if it has a plate modulator? Where do y0 get the truck to haul it? Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' Hierro Candente, Batir de repente -Original Message- From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of bruce mallon Sent: Friday, April 11, 2008 1:44 PM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] Amp for sale on Ebay how about 11 ? LOL It's only 35 miles north of me but my wife would KILL me if I came home with THAT . --- Robert Chudek - K0RC [EMAIL PROTECTED] wrote: I wonder if it covers the 30-meter band? 73 de Bob - KØRC in MN - Original Message - From: John Becker, WØJAB To: digitalradio@yahoogroups.com Sent: Friday, April 11, 2008 12:57 PM Subject: [digitalradio] Amp for sale on Ebay Item # 170209454193 __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Check our other Yahoo Groups http://groups.yahoo.com/group/dxlist/ http://groups.yahoo.com/group/contesting http://groups.yahoo.com/group/themixwgroup Yahoo! Groups Links
RE: [digitalradio] Re: TCVR and frequency stability.
What software are you using for this? Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' Hierro Candente, Batir de repente -Original Message- From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Geir Aarnes Sent: Monday, April 07, 2008 1:42 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] Re: TCVR and frequency stability. Hello Omar I did some more testing this afternoon. And the FT-2000 are pretty stable the first one and half hour from cold. But when the cooling fan kicks in it begins to wobble in frequency. Have a look at these screen captures I took. From cold - http://home.lyse.net/rhesusminus/Images/capt268.jpg and so forth - http://home.lyse.net/rhesusminus/Images/capt282.jpg 73 de LA6TPA Geir Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Check our other Yahoo Groups http://groups.yahoo.com/group/dxlist/ http://groups.yahoo.com/group/contesting http://groups.yahoo.com/group/themixwgroup Yahoo! Groups Links
RE: [digitalradio] TCVR and frequency stability.
I guess so? Oh well, asi es la vida. Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' Hierro Candente, Batir de repente -Original Message- From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Jose A. Amador Sent: Saturday, April 05, 2008 9:51 PM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] TCVR and frequency stability. Maybe I have been lucky to have seen it both ways before. 73, Jose, CO2JA --- rojomn wrote: I was confused because I have always seen XCVR as the abbreviation so did not connect it with your explicit mention. Thanks for the tip. Gil, W0MN Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Check our other Yahoo Groups http://groups.yahoo.com/group/dxlist/ http://groups.yahoo.com/group/contesting http://groups.yahoo.com/group/themixwgroup Yahoo! Groups Links
RE: [digitalradio] TCVR and frequency stability.
What IS TCVR and where is it found? There is no reference left in your post. Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' Hierro Candente, Batir de repente -Original Message- From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of la6tpa Sent: Wednesday, April 02, 2008 2:30 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] TCVR and frequency stability. I did some simple visual measurements regarding frequency stability in my transceivers. Seeing all the WSPR signals drifting up and down on my screen, I wanted to know how my own gear performed. Checking receivers visually against wwv at 10mhz I found that my little IC-7000 out performs my FT- 2000 by a clear margin. Both having a factory tolerance of ±0,5 ppm the FT-2000 drifts approximately ±0,4 ppm in 15 minutes period. But with the IC-7000 I can't see any deviation in frequency at all. Using 200Hz span in spectralab and the frame of another window as a ruler. I cross checked both radios with two different computers and audio interfaces. 73 de LA6TPA Geir Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Check our other Yahoo Groups http://groups.yahoo.com/group/dxlist/ http://groups.yahoo.com/group/contesting http://groups.yahoo.com/group/themixwgroup Yahoo! Groups Links
RE: [digitalradio] TCVR and frequency stability.
I was confused because I have always seen XCVR as the abbreviation so did not connect it with your explicit mention. Thanks for the tip. Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' Hierro Candente, Batir de repente -Original Message- From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Jose A. Amador Sent: Saturday, April 05, 2008 8:35 PM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] TCVR and frequency stability. Gil, TCVR means (T)rans(C)ei(V)e(R). It explicitly says transceiver in the second line of the message body. 73, Jose, CO2JA == rojomn wrote: What IS TCVR and where is it found? There is no reference left in your post. Gil, W0MN http://webpages.charter.net/gbaron http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' Hierro Candente, Batir de repente -Original Message- From: digitalradio@yahoogroups.com Sent: Wednesday, April 02, 2008 2:30 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] TCVR and frequency stability. I did some simple visual measurements regarding frequency stability in my transceivers. snip 73 de LA6TPA Geir Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Check our other Yahoo Groups http://groups.yahoo.com/group/dxlist/ http://groups.yahoo.com/group/contesting http://groups.yahoo.com/group/themixwgroup Yahoo! Groups Links
RE: [digitalradio] Re: Vista
The only real issue I see frequently is for users of MMTTY and PsKcore that want to use other than the default sound card. In Vista they cannot. Other than that I see no problems. Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' Hierro Candente, Batir de repente _ From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Ronald Collins Sent: Thursday, March 27, 2008 1:21 PM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] Re: Vista Well let's see, Vista does duplex sound, as a matter of fact I use it every day the games I play online in the games voip capability. Also it depends on if your sound card or hardware supports it. For the last year I have not had any issues with using any software on Vista Ultimate which is what i'm using as long as it's 32 bit. Some people are still stuck in the DOS days. I've seen people claim that Vista can't do this can't do that and all they are doing is repeating word of mouth. Heck i've seen most of the people who claim bad experiences with it, never even tried the OS. I still have a version of Pacterm 1.5 that runs stable as can be on Vista. So people unless you actually tried the operating system to see if it handled everything ok, because you will all get a different answer from every person you talk to especially those with biases about certain software from the get go. R Collins
RE: [digitalradio] Vista
The real problem is not the main part of Vista. The problem is that they did not make it backward compatible, especially for the sound interface. Everything else works fairly well. I am glad they came out with the Virtualization that allows programs that were not written to rules that were always there still work. Now as for the sound interface. I think that it is an abomination. It was a cave in to the RIAA and MPAA that brought us this. How many other devices have been broken up and virtualized to look like more than one? This is what is causes the biggest problem for programs that need both an input and an output. MMTTY, PsKCore, and I don't know how many others. I agree with you that we have to live with it and that XP will one day be gone. I am using and liking Vista for the most part but it is a real pain that the sound interface (In this case the API) was changed with no way to go back. I think that stinks. IBM would never get away with that. I worked there 25 years in OS and we never stuck a user with a new interface that did not preserve backward compatibility. OTOH people should realize some nice things they are getting. Number one is that Networking is a non issue for most with Vista. How much easier can it be than Start / Connect To USB is improved and works more reliably. The user interface is beautiful and faster. And on and on But until the sound issue is reslved by coders fixing their code or new coders writng replacements, it is going to be an issue for amateur radio digitsl prgrams. Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' Hierro Candente, Batir de repente -Original Message- From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of n7zxp Sent: Thursday, March 27, 2008 2:39 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] Vista I have been sitting here reading all this things about Vista. Now lets go back to when XP was new. Everyone said and wrote all this stuff about XP. Before that it was Win98 and so on. I am heavy into the computer industry and a programmer. Most all of the people that write all this neg about Vista have no idea about what they are talking about. Vista is a good program and is superior to XP. If people take the time to update drivers and software that is normaly free they would have no problems. But they would rather grip. I run MANY Ham related programs and have updated and no problems. The one's that are not updated yet are being worked on by the software makers. The amount of work involved in a new OS is behond the comprihention of most all people. If you think this is wrong sit down right now and write a program that will play a simple card game. Now imagine what goes into a program as complex as Vista or XP. As far as he goverment goes they are happy with Vista as they are he one's who requested to have all the security features in the Vista. Do you really think Bill Gates makes a new OS and does not talk to them as for as what they want. Think people... No matter who makes a new program knows it will have bugs. They turn it lose on the public becouse instead of having just the Microsoft crew give reports they have the world. When people give reports on the OS they mke changes. Thats what a update is. If they did not do it this way we would all be using DOS. Would that not be fun. My suggestion for those that cant come of age is to devise and write the code for a program that is just for Ham programs. That will keep you busy for the next 5 years and that is if you can write code. So stop gripping and learn the program becouse XP will be gone in a few years and then a new OS will out and this will all start again. Lane, N7ZXP Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Check our other Yahoo Groups http://groups.yahoo.com/group/dxlist/ http://groups.yahoo.com/group/contesting http://groups.yahoo.com/group/themixwgroup Yahoo! Groups Links
RE: [digitalradio] Re: Vista
Nobody could have said it better Dave. You have put it exactly where it belongs. The change in the sound APIs that limits the use of PSKCORE and MMTTY is similarly cut-and-dried and indefensible violation of upward compatibility. This paragraph of yours really says it all. Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' Hierro Candente, Batir de repente -Original Message- From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Dave Bernstein Sent: Friday, March 28, 2008 7:59 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] Re: Vista AA6YQ comments below --- In digitalradio@yahoogroups.com, n7zxp [EMAIL PROTECTED] wrote: SNIPPED
RE: [digitalradio] RFI-Free PCs?
If you can run your radio on battery then kill the entire house at the main. If it is still there then you are in trouble. If it stops do a binary search for the circuit. Turn on Half and if not then turn that off and turn on half of the other half, etc.. When you find the circuit you are on you r way. I think it is outside the house. Does it stop if you remove the antenna? That can also give some hints. Gil, W0MN http://webpages.charter.net/gbaron N 44.082147 W 92.513085 1050' Hierro Candente, Batir de repente _ From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Rodney Sent: Saturday, March 22, 2008 10:26 AM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] RFI-Free PCs? Bill, I haven't been following this thread, but THANKS! You've answered several questions that I had! Now I have a question: I have an 11-meter rig in my shack (Sorry guys, but I started in CB LONG before I became a Ham and that was in 1981) that has HALF SCALE noise! I also have the same problem with my 10-meter rig! So basically, they are both useless! I've turned off all my cordless phones, computers and anything else I can think of that would cause this, but it still exists. I live in a residential area so there are houses all around me. I'm HOPING that the problem is in MY house and not in someone else's house, that way I can locate and fix the problem! Any ideas on WHAT could be generating this noise? Rod KC7CJO Bill Turner [EMAIL PROTECTED] wrote: ORIGINAL MESSAGE: On Fri, 21 Mar 2008 23:17:22 -0400, Tony [EMAIL PROTECTED] mailto:DXDX%40optonline.net net wrote: Need to replace the PC in the shack and would like to find something that's RFI-free out of the box. REPLY FOLLOWS What kind of RFI? RFI caused by the computer and picked up by your receiver or RFI caused by your transmitter and picked up by your computer? A couple of general observations: The first kind is caused mostly by the monitor, not the computer. Going to an LCD monitor, as you are, will cure most of that kind. The second is more difficult, but try to have the computer and transmitter physically close together with the two chassis bonded together with a short ground wire. Without that bonding wire, your interconnecting wiring creates a sort of small loop antenna. The bonding wire shorts it out. And best of all, if you can, is keep your antenna as far away from your equipment as possible, and use coax feedline instead of open wire. Use a balun at the junction of antenna and feedline to prevent current from flowing on the outside of the coax. Such current flows as a result of unbalance in the antenna system and is a major cause of RF-in-the-shack syndrome, which in turn is a major cause of computer RFI. 73, Bill W6WRT _ Never miss a thing. Make Yahoo http://us.rd.yahoo.com/evt=51438/*http://www.yahoo.com/r/hs your homepage.
