Re: [WISPA] FM tower co-location
I tried to run just 24V up on a big cable, then my components started failing. Had to switch back to 48V with a DC to DC converter (the converters are awesome filters !!). On 1/25/06, Rick Harnish <[EMAIL PROTECTED]> wrote: > We just had to do a revamp on a cell tower that added a new client (7000 > watt FM station). Our radio's were tower mounted in a fiberglass/poly box > with 120v AC and outdoor ethernet running up to it. We had to build a new > metal enclosure, ran shielded ethernet in conduit and put ferrite beads > around the power leads. Still had a problem and ended up running fiber up > the tower and put a RF isolator on the power leads. Went with an aluminum > fan filter (grounded to the box) and pulled the ethernet out of the box > entirely. We are now cohabitating nicely together although there were a few > tense moments in the last month. > > Rick Harnish > President > OnlyInternet Broadband & Wireless, Inc. > 260-827-2482 Office > 260-307-4000 Cell > 260-918-4340 VoIP > www.oibw.net > [EMAIL PROTECTED] > > > > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of chris cooper > Sent: Wednesday, January 25, 2006 8:03 AM > To: 'WISPA General List' > Subject: RE: [WISPA] FM tower co-location > > Isolate/shield everything. Wrap your radios in mesh if they are up with > the FM antennas. Make sure there is a clear understanding of when you > are able to climb vs. when the will agree to turn down signal. You may > not be able to climb until after midnight etc. > Oh yeah- when your eyes start to feel like crinkly cellophane it may be > time to get lower. > > chris > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of Chadd Thompson > Sent: Tuesday, January 24, 2006 9:06 PM > To: WISPA General List > Subject: [WISPA] FM tower co-location > > Curious if anyone here has co-located on an FM tower? If so care to > share > your experiences? > > Thanks, > Chadd > -- > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.1.375 / Virus Database: 267.14.22/238 - Release Date: > 1/23/2006 > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > > -- > Internal Virus Database is out-of-date. > Checked by AVG Anti-Virus. > Version: 7.0.308 / Virus Database: 267.14.18 - Release Date: 1/14/2006 > > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] FM tower co-location
He he !! As far as I know everything still works :-) On 1/26/06, Kurt Fankhauser <[EMAIL PROTECTED]> wrote: > Brad, hope you already had all the kids you want. > > Kurt Fankhauser > WAVELINC > 114 S. Walnut St. > Bucyrus, OH 44820 > 419-562-6405 > www.wavelinc.com > > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of Jenco Wireless > Sent: Tuesday, January 24, 2006 9:31 PM > To: WISPA General List > Subject: Re: [WISPA] FM tower co-location > > I have. The station on the same tower as me is not a super high power > station - I think they broadcast at 12,000 watts (we have one close > that does 75,000 Watts) !! The RF engineer for the station told me > that 40' was safe for short exposure. I have some gear closer to 12' > away. They are required to turn down the power if you are going to be > close. I don't want to ask them to do that too much (I am sure with > the rent they pay they can dictate terms to the tower owners, if they > are not the owners (not sure)). I bought an RF radiation suit. > Unless I am going to be very close for a long period (hours), I just > work in the suit. I also had a Narda RF monitor, until it had a 460' > fall - oops. The bottom line is 50-300 MHz is very dangerous for > human exposure. It will cook you like a microwave oven starting with > your eyes and testicles. Be careful > > > > Brad Hagstrom > Jenco Wireless > > > > > > On 1/24/06, Chadd Thompson <[EMAIL PROTECTED]> wrote: > > Curious if anyone here has co-located on an FM tower? If so care to > share > > your experiences? > > > > Thanks, > > Chadd > > -- > > No virus found in this outgoing message. > > Checked by AVG Free Edition. > > Version: 7.1.375 / Virus Database: 267.14.22/238 - Release Date: > 1/23/2006 > > > > -- > > WISPA Wireless List: wireless@wispa.org > > > > Subscribe/Unsubscribe: > > http://lists.wispa.org/mailman/listinfo/wireless > > > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.375 / Virus Database: 267.14.22/238 - Release Date: > 1/23/2006 > > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] FM tower co-location
Yeah. It's, by far, my most troublesome site. Not all the fault of the FM system I'm sure. There are 3 or 4 competitors only a mile away. And my antennas have to mount behind another tower etc. But the general noise there is so high I have to take my volt meter outside of the building in order to get an accurate reading. I hate being up there! I'd much rather have two other systems with no other users in the area than one like this. laters, Marlon (509) 982-2181 Equipment sales (408) 907-6910 (Vonage)Consulting services 42846865 (icq)And I run my own wisp! 64.146.146.12 (net meeting) www.odessaoffice.com/wireless www.odessaoffice.com/marlon/cam - Original Message - From: "Chadd Thompson" <[EMAIL PROTECTED]> To: "WISPA General List" Sent: Tuesday, January 24, 2006 6:06 PM Subject: [WISPA] FM tower co-location Curious if anyone here has co-located on an FM tower? If so care to share your experiences? Thanks, Chadd -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.14.22/238 - Release Date: 1/23/2006 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] FM tower co-location
I have a 2.4g Cisco AP and a 5.8g MT backhaul link on a FM tower at 99.5mhz. My gear is at 230' of a 300' tower. The FM array is 10 bays that is fed by 50k watts, and is only about 15' above my AP and BH links. The Cisco is basemounted and the MT radio is on the tower at 230'. No problems what-so-ever. Jeff Chadd Thompson wrote: Curious if anyone here has co-located on an FM tower? If so care to share your experiences? Thanks, Chadd -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.14.22/238 - Release Date: 1/23/2006 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] FM tower co-location
We just had to do a revamp on a cell tower that added a new client (7000 watt FM station). Our radio's were tower mounted in a fiberglass/poly box with 120v AC and outdoor ethernet running up to it. We had to build a new metal enclosure, ran shielded ethernet in conduit and put ferrite beads around the power leads. Still had a problem and ended up running fiber up the tower and put a RF isolator on the power leads. Went with an aluminum fan filter (grounded to the box) and pulled the ethernet out of the box entirely. We are now cohabitating nicely together although there were a few tense moments in the last month. Rick Harnish President OnlyInternet Broadband & Wireless, Inc. 260-827-2482 Office 260-307-4000 Cell 260-918-4340 VoIP www.oibw.net [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of chris cooper Sent: Wednesday, January 25, 2006 8:03 AM To: 'WISPA General List' Subject: RE: [WISPA] FM tower co-location Isolate/shield everything. Wrap your radios in mesh if they are up with the FM antennas. Make sure there is a clear understanding of when you are able to climb vs. when the will agree to turn down signal. You may not be able to climb until after midnight etc. Oh yeah- when your eyes start to feel like crinkly cellophane it may be time to get lower. chris -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chadd Thompson Sent: Tuesday, January 24, 2006 9:06 PM To: WISPA General List Subject: [WISPA] FM tower co-location Curious if anyone here has co-located on an FM tower? If so care to share your experiences? Thanks, Chadd -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.14.22/238 - Release Date: 1/23/2006 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 267.14.18 - Release Date: 1/14/2006 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] FM tower co-location
Isolate/shield everything. Wrap your radios in mesh if they are up with the FM antennas. Make sure there is a clear understanding of when you are able to climb vs. when the will agree to turn down signal. You may not be able to climb until after midnight etc. Oh yeah- when your eyes start to feel like crinkly cellophane it may be time to get lower. chris -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chadd Thompson Sent: Tuesday, January 24, 2006 9:06 PM To: WISPA General List Subject: [WISPA] FM tower co-location Curious if anyone here has co-located on an FM tower? If so care to share your experiences? Thanks, Chadd -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.14.22/238 - Release Date: 1/23/2006 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 267.14.18 - Release Date: 1/14/2006 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] FM tower co-location
Brad, hope you already had all the kids you want. Kurt Fankhauser WAVELINC 114 S. Walnut St. Bucyrus, OH 44820 419-562-6405 www.wavelinc.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jenco Wireless Sent: Tuesday, January 24, 2006 9:31 PM To: WISPA General List Subject: Re: [WISPA] FM tower co-location I have. The station on the same tower as me is not a super high power station - I think they broadcast at 12,000 watts (we have one close that does 75,000 Watts) !! The RF engineer for the station told me that 40' was safe for short exposure. I have some gear closer to 12' away. They are required to turn down the power if you are going to be close. I don't want to ask them to do that too much (I am sure with the rent they pay they can dictate terms to the tower owners, if they are not the owners (not sure)). I bought an RF radiation suit. Unless I am going to be very close for a long period (hours), I just work in the suit. I also had a Narda RF monitor, until it had a 460' fall - oops. The bottom line is 50-300 MHz is very dangerous for human exposure. It will cook you like a microwave oven starting with your eyes and testicles. Be careful Brad Hagstrom Jenco Wireless On 1/24/06, Chadd Thompson <[EMAIL PROTECTED]> wrote: > Curious if anyone here has co-located on an FM tower? If so care to share > your experiences? > > Thanks, > Chadd > -- > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.1.375 / Virus Database: 267.14.22/238 - Release Date: 1/23/2006 > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.14.22/238 - Release Date: 1/23/2006 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] FM tower co-location
I have. The station on the same tower as me is not a super high power station - I think they broadcast at 12,000 watts (we have one close that does 75,000 Watts) !! The RF engineer for the station told me that 40' was safe for short exposure. I have some gear closer to 12' away. They are required to turn down the power if you are going to be close. I don't want to ask them to do that too much (I am sure with the rent they pay they can dictate terms to the tower owners, if they are not the owners (not sure)). I bought an RF radiation suit. Unless I am going to be very close for a long period (hours), I just work in the suit. I also had a Narda RF monitor, until it had a 460' fall - oops. The bottom line is 50-300 MHz is very dangerous for human exposure. It will cook you like a microwave oven starting with your eyes and testicles. Be careful Brad Hagstrom Jenco Wireless On 1/24/06, Chadd Thompson <[EMAIL PROTECTED]> wrote: > Curious if anyone here has co-located on an FM tower? If so care to share > your experiences? > > Thanks, > Chadd > -- > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.1.375 / Virus Database: 267.14.22/238 - Release Date: 1/23/2006 > > -- > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] FM tower co-location
Curious if anyone here has co-located on an FM tower? If so care to share your experiences? Thanks, Chadd -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.14.22/238 - Release Date: 1/23/2006 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
