Re: [Repeater-Builder] 900 MHz WISP on repeater tower?
Make the WISP secondary to the primary user which would be your repeater or any future amateur projects. No interference or they have to abandon the site. Take their money if it works out, lose the money if they cause problems and terminate the contract. Mike WBØGOA --- On Wed, 1/21/09, AJ aj.grant...@gmail.com wrote: From: AJ aj.grant...@gmail.com Subject: Re: [Repeater-Builder] 900 MHz WISP on repeater tower? To: Repeater-Builder@yahoogroups.com Date: Wednesday, January 21, 2009, 3:41 PM And scratch out the chance of ever making friends with any other amateur in the area that has deployed, or is thinking of deploying, a 902 MHz ham repeater... The 900 MHz ISM crap makes the 902 Amateur band in a lot of the country almost unusable... We actually had a WISP removed from our site due to the noise floor they stirred up with their certified Motorola gear... Right of first refusal is rather helpful in these cases. 73s, AJ, K6LOR On Wed, Jan 21, 2009 at 2:37 PM, Mike Lyon mike.l...@gmail. com wrote: Find out what gear they are using. Make sure it's FCC certified. If you have a spectrum analyzer, or have access to one, have them fire up the gear and make sure it doesn't have any spurious spikes within the 440 and 2m ham band. -Mike On Wed, Jan 21, 2009 at 1:34 PM, Paul N1BUG paul_n1...@verizon. net wrote: I could use a little help here. I have a repeater tower with 2 meter and 440 repeater on it. I have been contacted by a wireless internet service provider about putting some 900 MHz stuff on my tower. The deal they are offering is attractive but I'm wondering if there would be interference issues between their stuff and my repeaters. I'm going to be setting up a meeting to discuss technical aspects of the proposed system, but I have no experience or knowledge in this area and am not sure what questions I should be asking them. Any suggestions or advice? Thanks! Paul N1BUG
RE: [Repeater-Builder] 900 MHz WISP on repeater tower?
Paul, I have a set up on my tower like your thinking of doing. I have a 2 meter and 440 machine. The wireless 900 MHz antenna is on the very top position of the tower. ( I let them have the top so they could take all the lighting hits) Under that about 15 feet are the 2 meter and 440 antennas across from one another. A ways below that is a 2.6 gig microwave link. All the equipment is located in in the same building. To date we have had no issues. Some where I think I might have a current picture if your interested in seeing it. If this happens make sure you deal for some internet at the site for yourself! works great for connection at the site for echolink. Mike KA2NDW -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com]on Behalf Of Paul N1BUG Sent: Wednesday, January 21, 2009 4:35 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] 900 MHz WISP on repeater tower? I could use a little help here. I have a repeater tower with 2 meter and 440 repeater on it. I have been contacted by a wireless internet service provider about putting some 900 MHz stuff on my tower. The deal they are offering is attractive but I'm wondering if there would be interference issues between their stuff and my repeaters. I'm going to be setting up a meeting to discuss technical aspects of the proposed system, but I have no experience or knowledge in this area and am not sure what questions I should be asking them. Any suggestions or advice? Thanks! Paul N1BUG
Re: [Repeater-Builder] 900 MHz WISP on repeater tower?
Kevin Custer wrote: Ethernet cabling should be of the shielded type and bonded at one end to earth. If they are putting up a 900 MHz access point, will it be sectorized? If yes, how many sectors (how many transmitters)? What frequencies and bandwidths on 900 (20 MHz) (10 MHz) (5 MHz) ? How is the input bandwidth being delivered? Fiber, DSL, wireless link on another band (2.4 GHz) (5.3 GHz) (5.8 GHz)? What kind of antenna system... 3 - 120 degree sectors, 1 - omni? What kind of equipment (Alveron) (Motorola) (home-made) (don't laugh, I build my own) Answering the above will give me an idea of what you can expect. Thanks Kevin, that gives me some questions to ask them! I do know the input bandwidth would be via 5.8 GHz wireless link and they would be using Motorola Canopy equipment. I will ask about the rest... I failed to mention I have reason to expect they will be putting equipment in the immediate vicinity of my repeaters one way or another... either on my tower or on an adjacent tower. Paul
[Repeater-Builder] 900 MHz WISP on repeater tower?
I could use a little help here. I have a repeater tower with 2 meter and 440 repeater on it. I have been contacted by a wireless internet service provider about putting some 900 MHz stuff on my tower. The deal they are offering is attractive but I'm wondering if there would be interference issues between their stuff and my repeaters. I'm going to be setting up a meeting to discuss technical aspects of the proposed system, but I have no experience or knowledge in this area and am not sure what questions I should be asking them. Any suggestions or advice? Thanks! Paul N1BUG
Re: [Repeater-Builder] 900 MHz WISP on repeater tower?
Find out what gear they are using. Make sure it's FCC certified. If you have a spectrum analyzer, or have access to one, have them fire up the gear and make sure it doesn't have any spurious spikes within the 440 and 2m ham band. -Mike On Wed, Jan 21, 2009 at 1:34 PM, Paul N1BUG paul_n1...@verizon.net wrote: I could use a little help here. I have a repeater tower with 2 meter and 440 repeater on it. I have been contacted by a wireless internet service provider about putting some 900 MHz stuff on my tower. The deal they are offering is attractive but I'm wondering if there would be interference issues between their stuff and my repeaters. I'm going to be setting up a meeting to discuss technical aspects of the proposed system, but I have no experience or knowledge in this area and am not sure what questions I should be asking them. Any suggestions or advice? Thanks! Paul N1BUG
Re: [Repeater-Builder] 900 MHz WISP on repeater tower?
And scratch out the chance of ever making friends with any other amateur in the area that has deployed, or is thinking of deploying, a 902 MHz ham repeater... The 900 MHz ISM crap makes the 902 Amateur band in a lot of the country almost unusable... We actually had a WISP removed from our site due to the noise floor they stirred up with their certified Motorola gear... Right of first refusal is rather helpful in these cases. 73s, AJ, K6LOR On Wed, Jan 21, 2009 at 2:37 PM, Mike Lyon mike.l...@gmail.com wrote: Find out what gear they are using. Make sure it's FCC certified. If you have a spectrum analyzer, or have access to one, have them fire up the gear and make sure it doesn't have any spurious spikes within the 440 and 2m ham band. -Mike On Wed, Jan 21, 2009 at 1:34 PM, Paul N1BUG paul_n1...@verizon.netwrote: I could use a little help here. I have a repeater tower with 2 meter and 440 repeater on it. I have been contacted by a wireless internet service provider about putting some 900 MHz stuff on my tower. The deal they are offering is attractive but I'm wondering if there would be interference issues between their stuff and my repeaters. I'm going to be setting up a meeting to discuss technical aspects of the proposed system, but I have no experience or knowledge in this area and am not sure what questions I should be asking them. Any suggestions or advice? Thanks! Paul N1BUG
Re: [Repeater-Builder] 900 MHz WISP on repeater tower?
I have a remote receiver site at a 900 mHz distribution point where the 2.4 gHz baseband is distributed down on 900 mHz and the noise is really bad. I can't copy my repeater to test the remote receiver till I walk about 200 ft from the tower where the 900 mHz stuff is located. I have a GE Mastr II remote receiver with the squelch set as tight as it will go to squelch out the digital noise. During the squelch tail before the PL squelch closes it sounds just like a packet station in the receiver. We are looking for another site for that remote, as the site with the 900 mHz stuff is unusable. 73 - Jim W5ZIT --- On Wed, 1/21/09, Paul N1BUG paul_n1...@verizon.net wrote: From: Paul N1BUG paul_n1...@verizon.net Subject: [Repeater-Builder] 900 MHz WISP on repeater tower? To: Repeater-Builder@yahoogroups.com Date: Wednesday, January 21, 2009, 3:34 PM I could use a little help here. I have a repeater tower with 2 meter and 440 repeater on it. I have been contacted by a wireless internet service provider about putting some 900 MHz stuff on my tower. The deal they are offering is attractive but I'm wondering if there would be interference issues between their stuff and my repeaters. I'm going to be setting up a meeting to discuss technical aspects of the proposed system, but I have no experience or knowledge in this area and am not sure what questions I should be asking them. Any suggestions or advice? Thanks! Paul N1BUG
Re: [Repeater-Builder] 900 MHz WISP on repeater tower?
On Wed, 21 Jan 2009, Jim Brown wrote: I have a remote receiver site at a 900 mHz distribution point where the 2.4 gHz baseband is distributed down on 900 mHz and the noise is really bad.? I can't copy my repeater to test the remote receiver till I walk about 200 ft from the tower where the 900 mHz stuff is located. I have a GE Mastr II remote receiver with the squelch set as tight as it will go to squelch out the digital noise.? During the squelch tail before the PL squelch closes it sounds just like a packet station in the receiver. We are looking for another site for that remote, as the site with the 900 mHz stuff is unusable. So much for shall not cause interference. After seeing a comment fly by on a list about protecting some portion of the 2.4GHz band from noise for amateur satellite use, I realized proactive protection from hams is pointless. The reason is that we can protect the band from ourselves, but not from Part 15 devices without FCC litigation. And that would make us exceptionally bad neighbors. Maybe a line needs to be drawn. Some services may coexist peacefully. OFDM and weak signal, perhaps not. -- Kris Kirby, KE4AHR k...@catonic.us But remember, with no superpowers comes no responsibility. --rly
RE: [Repeater-Builder] 900 MHz WISP on repeater tower?
Paul, Like Mike had said find out what gear is going to be used. Make sure it is type accepted and get the frequencies for RX TX if it is duplex and if it is simplex. Make sure they use a high quality band pass filter after the transmitter. Assuming that the wireless internet company wanting to provide service for your local area around the tower. You are sitting in a good seat now since they most likely will give you a broadband connection and can do with as you see fit, site security, IRLP etc. Good Luck, Colorado Telecom, L.L.C Mike Mullarkey 6886 Sage Ave Firestone, Co 80504 303-954-9695 Home 303-954-9693 Home Office Fax 303-718-8052 Cellular _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Mike Lyon Sent: Wednesday, January 21, 2009 2:38 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] 900 MHz WISP on repeater tower? Find out what gear they are using. Make sure it's FCC certified. If you have a spectrum analyzer, or have access to one, have them fire up the gear and make sure it doesn't have any spurious spikes within the 440 and 2m ham band. -Mike On Wed, Jan 21, 2009 at 1:34 PM, Paul N1BUG paul_n1...@verizon. mailto:paul_n1...@verizon.net net wrote: I could use a little help here. I have a repeater tower with 2 meter and 440 repeater on it. I have been contacted by a wireless internet service provider about putting some 900 MHz stuff on my tower. The deal they are offering is attractive but I'm wondering if there would be interference issues between their stuff and my repeaters. I'm going to be setting up a meeting to discuss technical aspects of the proposed system, but I have no experience or knowledge in this area and am not sure what questions I should be asking them. Any suggestions or advice? Thanks! Paul N1BUG
Re: [Repeater-Builder] 900 MHz WISP on repeater tower?
Paul N1BUG wrote: I could use a little help here. I have a repeater tower with 2 meter and 440 repeater on it. I have been contacted by a wireless internet service provider about putting some 900 MHz stuff on my tower. The deal they are offering is attractive but I'm wondering if there would be interference issues between their stuff and my repeaters. I'm going to be setting up a meeting to discuss technical aspects of the proposed system, but I have no experience or knowledge in this area and am not sure what questions I should be asking them. Any suggestions or advice? This doesn't exactly apply, but I share a site with some 5.6 Ghz wireless stuff. Apparently, this particular installation's equipment seems to have an IF somewhere around 400 Mhz. We have a packup antenna located somewhere around 5 ft away from their antennas. When we put above 25W of UHF RF on this antenna, we swamp the wireless stuff. Just put this in the back of your mind just in case. Mike KA4MKG
Re: [Repeater-Builder] 900 MHz WISP on repeater tower?
I would include a clause that requires the wireless internet company to be responsible to mitigate any interference to the existing users of the tower. Nice and simple. Joe Mike Pugh wrote: Paul N1BUG wrote: I could use a little help here. I have a repeater tower with 2 meter and 440 repeater on it. I have been contacted by a wireless internet service provider about putting some 900 MHz stuff on my tower. The deal they are offering is attractive but I'm wondering if there would be interference issues between their stuff and my repeaters. I'm going to be setting up a meeting to discuss technical aspects of the proposed system, but I have no experience or knowledge in this area and am not sure what questions I should be asking them. Any suggestions or advice?
Re: [Repeater-Builder] 900 MHz WISP on repeater tower?
Paul N1BUG wrote: I could use a little help here. I have a repeater tower with 2 meter and 440 repeater on it. I have been contacted by a wireless internet service provider about putting some 900 MHz stuff on my tower. The deal they are offering is attractive but I'm wondering if there would be interference issues between their stuff and my repeaters. I'm going to be setting up a meeting to discuss technical aspects of the proposed system, but I have no experience or knowledge in this area and am not sure what questions I should be asking them. Any suggestions or advice? Ethernet cabling should be of the shielded type and bonded at one end to earth. If they are putting up a 900 MHz access point, will it be sectorized? If yes, how many sectors (how many transmitters)? What frequencies and bandwidths on 900 (20 MHz) (10 MHz) (5 MHz) ? How is the input bandwidth being delivered? Fiber, DSL, wireless link on another band (2.4 GHz) (5.3 GHz) (5.8 GHz)? What kind of antenna system... 3 - 120 degree sectors, 1 - omni? What kind of equipment (Alveron) (Motorola) (home-made) (don't laugh, I build my own) Answering the above will give me an idea of what you can expect. Kevin Custer
