Re: [WISPA] harmful RFI from ethernet to HAM RADIO?
Separate the runs from each other by at least 12 inchs and if they cross make it at a 90 degree angle. That is standard NSC spec for isolating secure lines from crosstalk, but works for any kind of spurious radiation. Shielded cable will work as well but this will be a quick fix. Phil On Sun, Mar 29, 2009 at 11:17 PM, Marlon K. Schafer o...@odessaoffice.comwrote: I've seen this happen too. It's funny, if we plug the computer right into the radio it goes away. Use a router and it's back. We're just going to replace the cat 5 with shielded cable and see what happens. marlon - Original Message - From: e...@wisp-router.com To: WISPA General List wireless@wispa.org Sent: Sunday, March 29, 2009 9:24 PM Subject: Re: [WISPA] harmful RFI from ethernet to HAM RADIO? Yes that would be ethernet. Gets some cable ferrules and put on the ethernet right next to the radio another right at the exit from the poe and another right as cat5 cable goes into poe and finally one right where the cat5 cable goes into switch and computer. Might also consider using heavy outdoor rated shielded cat5 cabling between poe and unit. /Eje Sent via BlackBerry from T-Mobile -Original Message- From: Kurt Fankhauser k...@wavelinc.com Date: Sun, 29 Mar 2009 23:56:12 To: 'WISPA General List'wireless@wispa.org Subject: [WISPA] harmful RFI from ethernet to HAM RADIO? Has anyone else here ever been co-located on a tower with a HAM radio (144-148mhz) VHF repeater or perhaps even a commercial system in the 150mhz band and gotten complaints that your Ethernet cable is causing them interference on their repeater? We are trying to locate the source of noise on an amateur radio repeater system locally and last time I went up on grain leg there was a whole lot of Ethernet cabling strung everywhere and I've read some links such as these. http://www.hamuniverse.com/linksys.html that apparently some brands of equipment give out much more spurious emissions than others. Also how did you work with the radio people to solve it? Seems to only be apparent in the VHF band. Kurt Fankhauser WAVELINC P.O. Box 126 Bucyrus, OH 44820 419-562-6405 www.wavelinc.com WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] harmful RFI from ethernet to HAM RADIO?
This happens right in my house. Since installing lots of extra ethernet wiring, my ability to scan in the 2m and 150mhz areas has definitely been hindered by all the off noisy channels. It happened because I haven't bothered to use shielded cat5 at home. At tower sites, we use shielded only. We have many situations where we are colocated with VHF and HAM gear and have no problems because we use shielded cables and metal equipment enclosures. We have one site with probably 25 ethernet devices adjacent to a VHF AIS receiver that is picking things up distant ships at sensitivities of -115dbm or so. On Sun, Mar 29, 2009 at 11:56:12PM -0400, Kurt Fankhauser wrote: Has anyone else here ever been co-located on a tower with a HAM radio (144-148mhz) VHF repeater or perhaps even a commercial system in the 150mhz band and gotten complaints that your Ethernet cable is causing them interference on their repeater? We are trying to locate the source of noise on an amateur radio repeater system locally and last time I went up on grain leg there was a whole lot of Ethernet cabling strung everywhere and I've read some links such as these. http://www.hamuniverse.com/linksys.html that apparently some brands of equipment give out much more spurious emissions than others. Also how did you work with the radio people to solve it? Seems to only be apparent in the VHF band. Kurt Fankhauser WAVELINC P.O. Box 126 Bucyrus, OH 44820 419-562-6405 www.wavelinc.com -- /* Jason Philbrook | Midcoast Internet Solutions - Wireless and DSL KB1IOJ| Broadband Internet Access, Dialup, and Hosting http://f64.nu/ | for Midcoast Mainehttp://www.midcoast.com/ */ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] Malicious damage
Is malicious damage to a tower a federal offense if I have government agencies using my service to send and receive email and data? Thanx NGL WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Malicious damage
I believe it would be an offense to do so to a site with an FCC licensed public safety transmitter. If you are only using unlicensed gear and they use your unlicensed network I believe that is not the case. Now I'm not a lawyer, so to get a proper answer to this you should consult one :-) Thank You, Brian Webster -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org]on Behalf Of NGL Sent: Monday, March 30, 2009 11:21 AM To: wireless@wispa.org Subject: [WISPA] Malicious damage Is malicious damage to a tower a federal offense if I have government agencies using my service to send and receive email and data? Thanx NGL WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Malicious damage
I am talking about physical damage i.e.: stolen components, broken solar panels etc. Not use of the system. Thanx NGL -- From: Brian Webster bwebs...@wirelessmapping.com Sent: Monday, March 30, 2009 9:10 AM To: WISPA General List wireless@wispa.org Subject: Re: [WISPA] Malicious damage I believe it would be an offense to do so to a site with an FCC licensed public safety transmitter. If you are only using unlicensed gear and they use your unlicensed network I believe that is not the case. Now I'm not a lawyer, so to get a proper answer to this you should consult one :-) Thank You, Brian Webster -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org]on Behalf Of NGL Sent: Monday, March 30, 2009 11:21 AM To: wireless@wispa.org Subject: [WISPA] Malicious damage Is malicious damage to a tower a federal offense if I have government agencies using my service to send and receive email and data? Thanx NGL WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] 24ghz links
Thanks everyone for the great input on 24Ghz. Randy Tom DeReggi wrote: Because there is no reason to buy a license for a link that is getting deployed to a customer pre-existing site for 6 months, until they move to their new office location. Because I was able to install the order within 24hours of the day the order was placed from inventory, and gained an extra month of revenue ($2000) from the customer that I wouldn't have had if I waited for a Freq Cord, and the manufacturer's 20-30 day lead time to get me gear. However, with that said From my experience, CTI's lead time on Freq Coords had been amazingly fast, and CTI sure did make it easy buying 23Ghz. I think most people will choose 23Ghz, most of the time, when there is time to do it, without financial trade off. Most broadband customers will sign an order, prior to the min 1 month cancellation notice they need to give their old broadband provider, where revenue for the new provider won't come in until 30 days out any ways, so there is usually time to plan. It all depends on the situation. But in this case... 24Ghz UL put $4000 extra dollars in my pocket. Tom DeReggi RapidDSL Wireless, Inc IntAirNet- Fixed Wireless Broadband - Original Message - From: Charles Wu c...@cticonnect.com To: WISPA General List wireless@wispa.org Sent: Sunday, March 29, 2009 8:41 AM Subject: Re: [WISPA] 24ghz links It's my understanding that 24 GHz is priced pretty close to 23 GHz (~$10-15k / link depending on antennas / configuration / etc) -- so unless you're in the Canada, I don't see why anyone wouldn't just pay the extra $2k to get a FCC license -Charles -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Scott Carullo Sent: Saturday, March 28, 2009 6:20 PM To: WISPA General List Subject: Re: [WISPA] 24ghz links Whats the price for this link? Scott Carullo Brevard Wireless 321-205-1100 x102 Original Message From: Tom DeReggi wirelessn...@rapiddsl.net Sent: Saturday, March 28, 2009 12:43 PM To: WISPA General List wireless@wispa.org Subject: Re: [WISPA] 24ghz links I am now. I learned that yesterday, after reading manual, and some list discussion on members list. Yes, the problem was I had the radios set to same polarity, and with 24Ghz one side needs to be vert and the other horizonal, because they send and receive on different pols. Thanks. Tom DeReggi RapidDSL Wireless, Inc IntAirNet- Fixed Wireless Broadband - Original Message - From: Gino Villarini g...@aeronetpr.com To: WISPA General List wireless@wispa.org Sent: Saturday, March 28, 2009 6:32 AM Subject: Re: [WISPA] 24ghz links Are you cross polarizing? Gino A. Villarini g...@aeronetpr.com Aeronet Wireless Broadband Corp. tel 787.273.4143 fax 787.273.4145 -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Tom DeReggi Sent: Friday, March 27, 2009 5:32 PM To: WISPA General List Subject: Re: [WISPA] 24ghz links Randy, 24Ghz is sometimes thought of as interference free, based on its approximate 1.5 degree beamwidth at 2ft, and about 2.6 degree beamwidth at 1ft dish. The dragonwave works on 40mhz channels and allows setting to one of two channels sets (A 24078500 tx and 24173829 rx, or B 124126170 tx 24221500 rx) And then you have polarity diversity. The antennas have about a -68 F/B ratio, so getting channel reuse at a tower is pretty doable. Currently there is not alot of noise out there, because there weren't a lot of products out there, and most people that were willing to spend the money for high end gear, were willing to buy 23Ghz licenses. But it doesn't mean its going to stay that way. For us it has worked pretty well. I will say... I've had a hard time getting one of my 24Ghz links Dragonwave links to reach target RSSI, I'm about 15db off. I think its a problem with one of the antennas, but I haven't figured it out yet. With 1-5db low power, its less forgiving on the link budget, if something is wrong to hurt the link budget. Rain fade is high. Tom DeReggi RapidDSL Wireless, Inc IntAirNet- Fixed Wireless Broadband - Original Message - From: Randy Cosby dco...@infowest.com To: wireless@wispa.org Sent: Friday, March 27, 2009 4:08 PM Subject: [WISPA] 24ghz links I'm considering a 24ghz link for a 3 mile shot. The path calcs all work fine for our use, climate, etc. I'm interested in hearing first from anyone who has used 24 gigahertz radios (dragonwave most likely). Have you had any interference issues? Any recommendations on what to check for besides the clear LOS before putting something like this
Re: [WISPA] Malicious damage
What I am saying is that until there is an FCC licensed user on the site there is no federal jurisdiction. Thank You, Brian Webster -Original Message- From: NGL [mailto:n...@ngl.net] Sent: Monday, March 30, 2009 12:19 PM To: bwebs...@wirelessmapping.com; WISPA General List Subject: Re: [WISPA] Malicious damage I am talking about physical damage i.e.: stolen components, broken solar panels etc. Not use of the system. Thanx NGL -- From: Brian Webster bwebs...@wirelessmapping.com Sent: Monday, March 30, 2009 9:10 AM To: WISPA General List wireless@wispa.org Subject: Re: [WISPA] Malicious damage I believe it would be an offense to do so to a site with an FCC licensed public safety transmitter. If you are only using unlicensed gear and they use your unlicensed network I believe that is not the case. Now I'm not a lawyer, so to get a proper answer to this you should consult one :-) Thank You, Brian Webster -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org]on Behalf Of NGL Sent: Monday, March 30, 2009 11:21 AM To: wireless@wispa.org Subject: [WISPA] Malicious damage Is malicious damage to a tower a federal offense if I have government agencies using my service to send and receive email and data? Thanx NGL -- -- WISPA Wants You! Join today! http://signup.wispa.org/ -- -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- -- WISPA Wants You! Join today! http://signup.wispa.org/ -- -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] harmful RFI from ethernet to HAM RADIO?
I went through this issue with a ham repeater at a mountain top tower. The repeater would key up and never let go as it saw some signal it thought was a user. I was in a metal cargo container and the repeater was in a frame building 20 feet away. I could turn off the ethernet switch and the interference would go away. I could leave the switch powered up and remove all the cat 5 cables to it and the interference would go away. It appears the ethernet switch was mixing several RF sources and emitting a sum or difference of the two (or more). I tried Ferrite rings on all cat 5 cables, shielded cable etc. Nothing really worked that well. Finally I moved 100' away to a different building on a different tower and no one is complaining now. Spacial separation seems to have fixed it. Kurt Fankhauser wrote: Has anyone else here ever been co-located on a tower with a HAM radio (144-148mhz) VHF repeater or perhaps even a commercial system in the 150mhz band and gotten complaints that your Ethernet cable is causing them interference on their repeater? We are trying to locate the source of noise on an amateur radio repeater system locally and last time I went up on grain leg there was a whole lot of Ethernet cabling strung everywhere and I've read some links such as these. http://www.hamuniverse.com/linksys.html that apparently some brands of equipment give out much more spurious emissions than others. Also how did you work with the radio people to solve it? Seems to only be apparent in the VHF band. Kurt Fankhauser WAVELINC P.O. Box 126 Bucyrus, OH 44820 419-562-6405 www.wavelinc.com WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] Kinda OT: Network Inventory Tracking.
I am getting to the point where I need a central system that lets me track the network and records changes. For example something to put in Sites and what Equipment is at each site, then if I move a device from one site to another it logs that. If I make a change to a device it logs what that change was, etc. Any recommendations? - Matt WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] harmful RFI from ethernet to HAM RADIO?
Most ethernet ports are keyed by a 25MHz crystal. What you and others describe is harmonics interference from this crystal. Which is common unfortunately especially on poe based equipment. Sometimes in bad cases you have to as well put ferruls on the power cable to the switch/poe injector as well as multiple ferruls at each end of every cat5 cable used. /Eje Sent via BlackBerry from T-Mobile -Original Message- From: Gary Garrett ggarr...@nidaho.net Date: Mon, 30 Mar 2009 11:09:06 To: WISPA General Listwireless@wispa.org Subject: Re: [WISPA] harmful RFI from ethernet to HAM RADIO? I went through this issue with a ham repeater at a mountain top tower. The repeater would key up and never let go as it saw some signal it thought was a user. I was in a metal cargo container and the repeater was in a frame building 20 feet away. I could turn off the ethernet switch and the interference would go away. I could leave the switch powered up and remove all the cat 5 cables to it and the interference would go away. It appears the ethernet switch was mixing several RF sources and emitting a sum or difference of the two (or more). I tried Ferrite rings on all cat 5 cables, shielded cable etc. Nothing really worked that well. Finally I moved 100' away to a different building on a different tower and no one is complaining now. Spacial separation seems to have fixed it. Kurt Fankhauser wrote: Has anyone else here ever been co-located on a tower with a HAM radio (144-148mhz) VHF repeater or perhaps even a commercial system in the 150mhz band and gotten complaints that your Ethernet cable is causing them interference on their repeater? We are trying to locate the source of noise on an amateur radio repeater system locally and last time I went up on grain leg there was a whole lot of Ethernet cabling strung everywhere and I've read some links such as these. http://www.hamuniverse.com/linksys.html that apparently some brands of equipment give out much more spurious emissions than others. Also how did you work with the radio people to solve it? Seems to only be apparent in the VHF band. Kurt Fankhauser WAVELINC P.O. Box 126 Bucyrus, OH 44820 419-562-6405 www.wavelinc.com WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] Prairie i-net
Does anybody have a personal contact at Prairie in Iowa? I have a semi-urgent need... Michael Prachar - COO Voice: (1) 402-392-7502 PST (GMT -8 Hrs.) Fax: (1) 402-392-7585 (Anytime) mi...@rapidlink.com WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Prairie i-net
Michael, The President's name is Craig Hiemstra, although I have never met him. Respectfully, Rick Harnish -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Mike Prachar Sent: Monday, March 30, 2009 6:45 PM To: WISPA General List Subject: [WISPA] Prairie i-net Importance: High Does anybody have a personal contact at Prairie in Iowa? I have a semi-urgent need... Michael Prachar - COO Voice: (1) 402-392-7502 PST (GMT -8 Hrs.) Fax: (1) 402-392-7585 (Anytime) mi...@rapidlink.com WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/