RE: [AMRadio] Telephone Wiring RFI Treatment
Try www.sandman.com. Best site I know of for telephone related anything! Also make sure you still have your twisted pair leads twisted all the way up to their terminations and no phone wiring running parallel to power lines, TV & satellite cables, etc. Any place you have to cross other wiring with phone lines, run them perpendicular to each other. Said another way, make sure telephone lines are run with up-to-date Category 3 or better twisted pair wire and cross other wires and cables at 90 degree angles. Best Regards, Steve White, W5SAW SW Commercial Electronics mailto:[EMAIL PROTECTED] "Whenever we're afraid, it's because we don't know enough. If we understood enough, we would never be afraid." -- Earl Nightingale -Original Message- From: Mike Duke, K5XU [mailto:[EMAIL PROTECTED] Sent: Sunday, December 17, 2006 12:57 PM To: Discussion of AM Radio Subject: [AMRadio] Telephone Wiring RFI Treatment Here's one for those wishing a break from the current hot topic! I need to do some maintenance on the telephone wiring in my house in order to cure a hum that is now constant on all phones. While I'm at it, I'd like to take appropriate measures to eliminate, or at least reduce the rfi that occurs whenever I operate on 80 or 40 meters with any mode. Which ferrite beads or filtering should I use, and should I place any such devices on the house side of the entry box rather than, or in addition to at the connection point for each phone? The rfi was present before the hum appeared, so I doubt curing the hum will cure the rfi, although it certainly might at least reduce it. Mike Duke, K5XU American Council of Blind Radio Amateurs __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
[AMRadio] Coto Coil information
Anyone have a Coto Coil catalog, datasheet, or price list scanned? I've got a knob which I believe is Coto but I can't be sure. Will be grateful for ANY information or pictures of Coto Coil. 73, Mark W1EOF __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] the 3600 - 3635 spectrum
Regardless, I am grateful for whomever initiated this action, both at the FCC and within our ranks. Merry Christmas Dave, W3ST Publisher of the Collins Journal Secretary to the Collins Radio Association www.collinsra.com - the CRA Website Now with PayPal CRA Nets: 3.805 Mhz every Monday at 8 PM EST and 14.253 Mhz every Saturday at 12 Noon EST Collins Chatroom - Daily at 4 PM EST on 14.285 Mhz - Original Message - From: "Jack Schmidling" <[EMAIL PROTECTED]> To: "Discussion of AM Radio in the Amateur Service" Sent: Sunday, December 17, 2006 6:52 PM Subject: Re: [AMRadio] the 3600 - 3635 spectrum david knepper wrote: I am really tired of all the grumbling. Thank goodness they did not take any frequencies from us and you know that they could. Let's be pleased for what we got. Before we bang our heads on the ground groveling, keep in mind that these people owe their jobs to taxpayers (that's us). This is not a gift from god, it is the government doing what it should for a change. js -- PHOTO OF THE WEEK: http://schmidling.com/pow.htm Astronomy, Beer, Cheese, Fiber,Gems, Sausage,Silver http://schmidling.com __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Telephone Wiring RFI Treatment
Mike - I was successful getting rid of RF in my desktop computer speakers by using a split ferrite core choke from MFJ by wrapping about four turns of the speaker leads around the choke then closing the choke. Never have rf into the computer speakers now when using any rig or even when using my SB-200 at full power. It's worth a try. 73, Larry KC8JX --- [EMAIL PROTECTED] wrote: > Since the problem is only there on 40 meters, one or both speaker leads may > be resonant at the frequency used. Try ferrite cores on the leads or change > the lead length making sure they are nor resonant on any of the ham bands you > use. 73, John, W4AWM > Mike W3slk wrote: > My problem with this has always been keeping RF out of the computer speakers > on 40M. Its the only band I seem to have RF problems with and it comes > regardless whether I'm running low power or QRO. Any suggestions would be > greatly appreciated. Mod-U-Lator, Mike(y) W3SLK __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Telephone Wiring RFI Treatment
Since the problem is only there on 40 meters, one or both speaker leads may be resonant at the frequency used. Try ferrite cores on the leads or change the lead length making sure they are nor resonant on any of the ham bands you use. 73, John, W4AWM << My problem with this has always been keeping RF out of the computer speakers on 40M. Its the only band I seem to have RF problems with... >> __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Telephone Wiring RFI Treatment
My problem with this has always been keeping RF out of the computer speakers on 40M. Its the only band I seem to have RF problems with and it comes regardless whether I'm running low power or QRO. Any suggestions would be greatly appreciated. Mod-U-Lator, Mike(y) W3SLK __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] Telephone Wiring RFI Treatment
At work, we've had some success with K-Com filters, both wired and plug-in. -- Original message -- From: "Mike Duke, K5XU" <[EMAIL PROTECTED]> > Here's one for those wishing a break from the current hot topic! > > I need to do some maintenance on the telephone wiring in my house in order > to cure a hum that is now constant on all phones. > > While I'm at it, I'd like to take appropriate measures to eliminate, or at > least reduce the rfi that occurs whenever I operate on 80 or 40 meters with > any mode. > > > Which ferrite beads or filtering should I use, and should I place any such > devices on the house side of the entry box rather than, or in addition to at > the connection point for each phone? > > The rfi was present before the hum appeared, so I doubt curing the hum will > cure the rfi, although it certainly might at least reduce it. > > > > Mike Duke, K5XU > American Council of Blind Radio Amateurs > > > __ > AMRadio mailing list > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Partner Website: http://www.amfone.net > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:AMRadio@mailman.qth.net __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] the 3600 - 3635 spectrum
david knepper wrote: I am really tired of all the grumbling. Thank goodness they did not take any frequencies from us and you know that they could. Let's be pleased for what we got. Before we bang our heads on the ground groveling, keep in mind that these people owe their jobs to taxpayers (that's us). This is not a gift from god, it is the government doing what it should for a change. js -- PHOTO OF THE WEEK: http://schmidling.com/pow.htm Astronomy, Beer, Cheese, Fiber,Gems, Sausage,Silver http://schmidling.com __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] the 3600 - 3635 spectrum
Perhaps, we should send a nice thank you card to members of the FCC for this swift and decisive decision. I am really tired of all the grumbling. Thank goodness they did not take any frequencies from us and you know that they could. Let's be pleased for what we got. Merry Christmas Dave, W3ST Publisher of the Collins Journal Secretary to the Collins Radio Association www.collinsra.com - the CRA Website Now with PayPal CRA Nets: 3.805 Mhz every Monday at 8 PM EST and 14.253 Mhz every Saturday at 12 Noon EST Collins Chatroom - Daily at 4 PM EST on 14.285 Mhz - Original Message - From: "Geoff/W5OMR" <[EMAIL PROTECTED]> To: "Discussion of AM Radio in the Amateur Service" Sent: Saturday, December 16, 2006 11:37 AM Subject: Re: [AMRadio] the 3600 - 3635 spectrum crawfish wrote: I didn't see what was wrong with 5 w.p.m. for Generals and above. Oh, well, the dumbing down of America continues... Joe W4AAB Exactly. })-;} __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] RE:Telephone Wiring RFI Treatment
Please excuse the spelling typos. I just came in from working on my G5RV and checked the mail. Wanted to get the answer back asap. Well, back to the roof. The high SWR was caused by a broken lead where the ladder line connects to the antenna. Could not be seen from the ground. I checked the balun yesterday and was up there ready to replace the whole antenna today. When I pulled it down, I found the problem so I am headed back up there with the trusty Bernz 0 Matic torch. 73, John, W4AWM __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] RE:Telephone Wiring RFI Treatment
Hi Mike, The hum on your phone line is most likely caused by a ground somewhere in the system. If you have revently installed wiring, there should be a test jack where the lines come in from outside. Disconnect the plastic plyg from this jack which isolates your inside telephone wiring. Plug a separate phone into this jack and listen. If the hum is there, the problem is outside your home and you shoule call the phone company for service. If it disappears, the problem is inside your house. If you are paying for inside wiring service which you shoule be able to detirmnine from your bill, the phone company service will fix it for free. If you are not paying for service, you will have to find it yourself or pay the price to the phone company to find the problem for you which is not exactly cheap. If you want to find it yourself, oner thing to check is the wall outlets. Remove them from the wall and determine if there is a greenish blue oxide on the connector. This sometimes happens when the connector gets damp from condensation or a leak in the insulation somewhere. If you find this problem, do not bother trying to clean the connector. The problem will return soon. It is better to just replace it with a new one. As far as RFI, there is a very good filter sold by an outfit that advertises in QST. They are expensive and you will probably need one for each phone, bit my experience is that they will solve most problems. You can also go the ferrite bead route on the leads behind the wall or try with one of the larger ferrite units that snaps apart and you then wrap several turns of the cable from the wall to the phone around it and snap it closed. This also work in some instances and are far cheaper that the filters I first mentioned. Good luck and let us know what you find. 73 and Top of the Season to you, John, W4AWM __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] RE:Telephone Wiring RFI Treatment
Bill, Thanks for the reminder about checking the devices before going into the wiring. Unfortunately, I've done that already. __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
[AMRadio] RE:Telephone Wiring RFI Treatment
Hi Mike, I have had hum in the phone lines here on several occasions. When it shows up, I begin un-plugging devices on the phone line one at a time until I find the source. This has, in the past, found a device that was causing the problem. One time the phone company had to replace the service box on the outside of the house. It was so old the service man could not believe that it still worked! It had screw in fuses for line protection. He ended up replacing the service line from the pole. The worst case I had required me to replace the line that runs underground in a PVC pipe to my workshop. The line came out all wet so I used my shop vac to pull air through the pipe for about 2 hours. When the pipe was dry, I replaced the line and the hum was gone. Good Luck! Bill KA8WTK __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
[AMRadio] Telephone Wiring RFI Treatment
Here's one for those wishing a break from the current hot topic! I need to do some maintenance on the telephone wiring in my house in order to cure a hum that is now constant on all phones. While I'm at it, I'd like to take appropriate measures to eliminate, or at least reduce the rfi that occurs whenever I operate on 80 or 40 meters with any mode. Which ferrite beads or filtering should I use, and should I place any such devices on the house side of the entry box rather than, or in addition to at the connection point for each phone? The rfi was present before the hum appeared, so I doubt curing the hum will cure the rfi, although it certainly might at least reduce it. Mike Duke, K5XU American Council of Blind Radio Amateurs __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] FCC ADDRESSES ARRL PETITION FOR RECONSIDERATION, NO-CODE PROPOSAL
At 05:23 AM 12/17/2006 -0500, you wrote: ARRL's term "Automatically controlled" is just a euphemism for "Unattended Robot Jammer" when it comes to Pator / Winlink stations. Brian there are a bunch of them now from 3560 to 3600. they never cared if they were manned or unmanned anyway. man i need to get back on AM in a big way. a T -series transmitter would be nice hi hi. hummm wonder if i could trade a in box ts 950sd for one installed at my qth . now the next questions do they do CW ? Merry Christmas to all 73 Tony __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
Re: [AMRadio] FCC ADDRESSES ARRL PETITION FOR RECONSIDERATION, NO-CODE PROPOSAL
Bry Carling wrote: ARRL's term "Automatically controlled" is just a euphemism for "Unattended Robot Jammer" when it comes to Pator / Winlink stations. Does anyone know if they are they still banned on HF under the new rules, due to their wide signal? Oor have they petitioned to remove that change too? Oh, c'mon, Brian.. a little common sense tells you that they -are-. If they weren't, then the R&O wouldn't need to include them now would it? You're smarter than that... aren't you? -- 73 __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net
[AMRadio] FCC ADDRESSES ARRL PETITION FOR RECONSIDERATION, NO-CODE PROPOSAL
ARRL's term "Automatically controlled" is just a euphemism for "Unattended Robot Jammer" when it comes to Pator / Winlink stations. Does anyone know if they are they still banned on HF under the new rules, due to their wide signal? Oor have they petitioned to remove that change too? > FCC MODIFIES AMATEUR RADIO SERVICE RULES, > > ELIMINATING MORSE CODE EXAM REQUIREMENTS AND > > ADDRESSING ARRL PETITION FOR RECONSIDERATION > > Washington, D.C. - Today, the Federal Communications Commission (FCC) > adopted a > > Report and Order and Order on Reconsideration (Order) that modifies the > rules for the Amateur > > Radio Service by revising the examination requirements for obtaining a > General Class or > > Amateur Extra Class amateur radio operator license and revising the > operating privileges for > > Technician Class licensees. In addition, the Order resolves a petition filed > by the American > > Radio Relay League, Inc. (ARRL) for partial reconsideration of an FCC Order > on amateur > > service rules released on October 10, 2006. > > The current amateur service operator license structure contains three > classes of amateur > > radio operator licenses: Technician Class, General Class, and Amateur Extra > Class. General > > Class and Amateur Extra Class licensees are permitted to operate in Amateur > bands below 30 > > MHz, while the introductory Technician Class licensees are only permitted to > operate in bands > > above 30 MHz. Prior to today's action, the FCC, in accordance with > international radio > > regulations, required applicants for General Class and Amateur Extra Class > operator licenses to > > pass a five words-per-minute Morse code examination. Today's Order > eliminates that > > requirement for General and Amateur Extra licensees. This change reflects > revisions to > > international radio regulations made at the International Telecommunication > Union's 2003 > > World Radio Conference (WRC-03), which authorized each country to determine > whether to > > require that individuals demonstrate Morse code proficiency in order to > qualify for an amateur > > radio license with transmitting privileges on frequencies below 30 MHz. This > change eliminates > > an unnecessary regulatory burden that may discourage current amateur radio > operators from > > advancing their skills and participating more fully in the benefits of > amateur radio. > > Today's Order also revises the operating privileges for Technician Class > licensees by > > eliminating a disparity in the operating privileges for the Technician Class > and Technician Plus > > Class licensees. Technician Class licensees are authorized operating > privileges on all amateur > > frequencies above 30 MHz. The Technician Plus Class license, which is an > operator license > > class that existed prior the FCC's simplification of the amateur license > structure in 1999 and was > > grandfathered after that time, authorized operating privileges on all > amateur frequencies above > > 30 MHz, as well as frequency segments in four HF bands (below 30 MHz) after > the successful > > completion of a Morse code examination. With today's elimination of the > Morse code exam > > requirements, the FCC concluded that the disparity between the operating > privileges of > > Technician Class licensees and Technician Plus Class licensees should not be > retained. > > 2 > > Therefore, the FCC, in today's action, afforded Technician and Technician > Plus licensees > > identical operating privileges. > > Finally, today's Order resolved a petition filed by the ARRL for partial > reconsideration of > > an FCC Order released on October 10, 2006 (FCC 06-149). In this Order, the > FCC authorized > > amateur stations to transmit voice communications on additional frequencies > in certain amateur > > service bands, including the 75 meter (m) band, which is authorized only for > certain wideband > > voice and image communications. The ARRL argued that the 75 m band should > not have been > > expanded below 3635 kHz, in order to protect automatically controlled > digital stations operating > > in the 3620-3635 kHz portion of the 80 m band. The FCC concluded that these > stations can be > > protected by providing alternate spectrum in the 3585-3600 kHz frequency > segment. > > Action by the Commission on December 15, 2006, by Report and Order and Order > on > > Reconsideration. Chairman Martin and Commissioners Copps, Adelstein, Tate, > and McDowell. > > For additional information, contact William Cross at (202) 418-0691 or > [EMAIL PROTECTED] > > WT Docket Nos. 04-140 and 05-235. > > http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-269012A1.pdf > __ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailt
