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RFI from Switched power supply
Hi all,
I have the (incredible fast and reliable) Verizon fiber optic into the house for my internet connection. So far so good. However at the access point there is a battery backup unit for the fiber-Copper converter. This battery unit is kept charged by a powersupply that makes an ENOURMOUS amount of RFI that radiates onto the (15 feet) lead into the unit and from there into the shack. (S6) Does anybody have any suggestions on how to silence this? Or... a suggestion for a cheap and 'quiet' powersupply? (It's output is a regular 12v) 73 Rob KE7KZN |
RFI from Switched power supply
wrote ...
I have the (incredible fast and reliable) Verizon fiber optic into the house for my internet connection. So far so good. However at the access point there is a battery backup unit for the fiber-Copper converter. This battery unit is kept charged by a powersupply that makes an ENOURMOUS amount of RFI that radiates onto the (15 feet) lead into the unit and from there into the shack. (S6) Does anybody have any suggestions on how to silence this? Or... a suggestion for a cheap and 'quiet' powersupply? (It's output is a regular 12v) You could likely find a linear (old-fashioned 60Hz transformer) "wall-wart" power supply at Radio Shack (and the appropriate connector/adapter to fit your equipment). I have FIOS in my neighborhood, but haven't signed up yet. I'm going to give up waiting for the WiMax broadband wireless network service and just go with FIOS. Richard KE7GKP (down the street at Intel) |
RFI from Switched power supply
In article . com,
wrote: Hi all, I have the (incredible fast and reliable) Verizon fiber optic into the house for my internet connection. So far so good. However at the access point there is a battery backup unit for the fiber-Copper converter. This battery unit is kept charged by a powersupply that makes an ENOURMOUS amount of RFI that radiates onto the (15 feet) lead into the unit and from there into the shack. (S6) Does anybody have any suggestions on how to silence this? Or... a suggestion for a cheap and 'quiet' powersupply? (It's output is a regular 12v) You could try ferrite beads on the wires. YMMV. Or just bitch to Verizon. -- Rich Greenberg N Ft Myers, FL, USA richgr atsign panix.com + 1 239 543 1353 Eastern time. N6LRT I speak for myself & my dogs only. VM'er since CP-67 Canines:Val, Red, Shasta & Casey (RIP), Red & Zero, Siberians Owner:Chinook-L Retired at the beach Asst Owner:Sibernet-L |
RFI from Switched power supply
On 28 Feb 2007 14:30:08 -0500, Richard Crowley wrote in :
wrote ... I have the (incredible fast and reliable) Verizon fiber optic into the house for my internet connection. So far so good. However at the access point there is a battery backup unit for the fiber-Copper converter. This battery unit is kept charged by a powersupply that makes an ENOURMOUS amount of RFI that radiates onto the (15 feet) lead into the unit and from there into the shack. (S6) Does anybody have any suggestions on how to silence this? Or... a suggestion for a cheap and 'quiet' powersupply? (It's output is a regular 12v) You could likely find a linear (old-fashioned 60Hz transformer) "wall-wart" power supply at Radio Shack (and the appropriate connector/adapter to fit your equipment). I have FIOS in my neighborhood, but haven't signed up yet. I'm going to give up waiting for the WiMax broadband wireless network service and just go with FIOS. Seems to me that their power supply is interfering with a licensed service, and that it's Verizon's problem to solve. In addition, if you do anything to their hardware, however well-intentioned and skillful you are, you're giving them an excuse to blame any of your future problems on you. At least they *have* a battery backup for their FIOS. -- Mike Andrews, W5EGO Tired old sysadmin |
RFI from Switched power supply
Hi everyone:
"Mike Andrews" wrote in message ... On 28 Feb 2007 14:30:08 -0500, Richard Crowley wrote in : wrote ... I have the (incredible fast and reliable) Verizon fiber optic into the house for my internet connection. So far so good. However at the access point there is a battery backup unit for the fiber-Copper converter. This battery unit is kept charged by a powersupply that makes an ENOURMOUS amount of RFI that radiates onto the (15 feet) lead into the unit and from there into the shack. (S6) Does anybody have any suggestions on how to silence this? Or... a suggestion for a cheap and 'quiet' powersupply? (It's output is a regular 12v) Seems to me that their power supply is interfering with a licensed service, and that it's Verizon's problem to solve. In addition, if you do anything to their hardware, however well-intentioned and skillful you are, you're giving them an excuse to blame any of your future problems on you. I'm afraid I have to respectfully disagree Mike. While it's EASY to blame Verizon and accuse them of interfering with a licensed service, you're forgetting one thing. Their technicians, just like that of any major broadband provider (Be it Verizon, Time-Warner, Comcast, QWORST, etc),.ARE NOT trained to handle Ham Radio Operators as customers nor are they trained to customize the installation so it doesn't interfere with Amateur Radio. They are only required to troubleshoot (Or at least attempt to) problems with the equipment and/or anything it's connected to. If no problems exist within the equipment or anything it's connected to, then the problem(s) lie with the Ham station itself. That can only be corrected by the Ham. Richard....Did you do a full diagnostic on your station to see if the problem might somehow be in your Ham equipment that might be receiving excessive amounts of RF, thus causing the problem? At least they *have* a battery backup for their FIOS. This may be true Mike, but as I said IF the problem is not with the provider's equipment and/or anything it's connected to, then Richard is the one with the problem and only he can solve it. Verizon can't do a thing about problems with his Ham station because, again assuming there are no problems with Verizon's equipment or anything it's connected to, they're not responsible. Just my $.02 worth :D Cheers & 73 :D Pat Cook, KB0OXD Denver, Colorado WEBSITE - http://www.qsl.net/kb0oxd/ **NEW VIDEO SECTION - http://www.qsl.net/kb0oxd/cybershacktv/ |
RFI from Switched power supply
On 28 Feb 2007 22:58:35 -0500, Pat Cook wrote in :
Hi everyone: "Mike Andrews" wrote in message ... On 28 Feb 2007 14:30:08 -0500, Richard Crowley wrote in : wrote ... I have the (incredible fast and reliable) Verizon fiber optic into the house for my internet connection. So far so good. However at the access point there is a battery backup unit for the fiber-Copper converter. This battery unit is kept charged by a powersupply that makes an ENOURMOUS amount of RFI that radiates onto the (15 feet) lead into the unit and from there into the shack. (S6) Does anybody have any suggestions on how to silence this? Or... a suggestion for a cheap and 'quiet' powersupply? (It's output is a regular 12v) Seems to me that their power supply is interfering with a licensed service, and that it's Verizon's problem to solve. In addition, if you do anything to their hardware, however well-intentioned and skillful you are, you're giving them an excuse to blame any of your future problems on you. I'm afraid I have to respectfully disagree Mike. While it's EASY to blame Verizon and accuse them of interfering with a licensed service, you're forgetting one thing. Their technicians, just like that of any major broadband provider (Be it Verizon, Time-Warner, Comcast, QWORST, etc),.ARE NOT trained to handle Ham Radio Operators as customers nor are they trained to customize the installation so it doesn't interfere with Amateur Radio. They are only required to troubleshoot (Or at least attempt to) problems with the equipment and/or anything it's connected to. If no problems exist within the equipment or anything it's connected to, then the problem(s) lie with the Ham station itself. That can only be corrected by the Ham. Richard....Did you do a full diagnostic on your station to see if the problem might somehow be in your Ham equipment that might be receiving excessive amounts of RF, thus causing the problem? At least they *have* a battery backup for their FIOS. This may be true Mike, but as I said IF the problem is not with the provider's equipment and/or anything it's connected to, then Richard is the one with the problem and only he can solve it. Verizon can't do a thing about problems with his Ham station because, again assuming there are no problems with Verizon's equipment or anything it's connected to, they're not responsible. Just my $.02 worth :D "Assuming there's no problem with Verizon's equipment ... ." Richard wrote explicitly that there *was* something wrong with it -- that "his battery unit is kept charged by a powersupply that makes an ENOURMOUS amount of RFI that radiates onto the (15 feet) lead into the unit and from there into the shack. (S6)" Looks like it's not justifiable to assume that there's no problem with Verizon's equipment. Ah, but ... The FCC sends out enforcement letters to folks with noise generators -- unintentional radiators -- with some frequency. The ones I've seen have included fence chargers with problems, aquarium heaters, televisions that were leaking signal, power line transformers and insulators, and a great many more classes of sources. If it's Verizon's equipment, then it's Verizon's problem, and a letter to them -- outlining the problem and suggesting that they do something to fix it before a letter gets sent to the FCC -- probably should be sent. And, of course, it is not Richard's equipment, but Verizon's equipment. While their run-of-the-mill techs may not be qualified to deal with this, VZ will have some higher-level techs who *are* so qualified. VZ is *required* to not interfere, just as the folks with the aquarium heater, the folks with the bad fence chargers, the folks with the leaky TVs, and the folks operating the power transmission system are required to not interfere. The enforcement letters tell them what will happen if they continue to interfere, and it's generally pretty pricey. If the power supply is radiating enough to interfere, then it's also radiating enough that VZ is required to fix the problem. Whether they have techs trained to do so isn't germane to the issue; the FCC has in the past just told the folks responsible for the interference to stop it. Or else. Period. -- Mike Andrews, W5EGO Tired old sysadmin |
RFI from Switched power supply
Thanks guys!
I'm going to play with some filters and beads. See if that works first. I agree that it actually is Verizon's problem (and I will inform them when I can't get it resolved.) but I want to see if I can avoid the headace of trying to explain them the issue. $5 worth of filter/beads might not be so badly spend if it works. Oh by the way... found out that the powersupply is 48V! (my bad!) |
RFI from Switched power supply
On 1 Mar 2007 01:19:20 -0500, "Mike Andrews"
wrote: VZ is *required* to not interfere, just as the folks with the aquarium heater, the folks with the bad fence chargers, the folks with the leaky TVs, and the folks operating the power transmission system are required to not interfere. The enforcement letters tell them what will happen if they continue to interfere, and it's generally pretty pricey. And on a practical point, Verizon would rather spend the $100 in labor and $10 in equipment costs to solve the problem to avoid having their name "flagged" in regulatory enforcement files and have it pop up when they apply for something really important such as rule exemptions or rate increases! If it were me, I would run a good heavy fused lead to my 12V station battery and leave the charger unplugged and disconnected. That's something the average installation tech can understand. -- 73 de K2ASP - Phil Kane From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon e-mail: k2asp [at] arrl [dot] net |
RFI from Switched power supply
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