[WISPA] 5GHz interference
Hi guys and gals, Just seeing if anyone has any advise when mounting more than 1 antenna in the same frequency range on a tower. We have just installed a 5.8GHz 120” vert sector at about 47m. Already on the same side of the tower @ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing in roughly the same direction and there is 4 channels separation between them. I read somewhere on this list that 5 foot separation should be enough but I am seeing major interference. We have a horizontal dish also on this tower for a critical link so changing the dish to horizontal is not an option. Also, the tower is full of high frequency dishes and mobile antennas so there isn’t much chance of moving either antennas to a different height. Anyone got any ideas?? Cheers, P. -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.12.5/150 - Release Date: 27/10/2005 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] 5GHz interference
Are you sure the interference is caused by the other dish? We have systems much closer than 15 foot apart and see no ill effects. With all the other gear on that tower could you in fact be seeing interference from something else? Lonnie On 10/28/05, Paul Hendry [EMAIL PROTECTED] wrote: Hi guys and gals, Just seeing if anyone has any advise when mounting more than 1 antenna in the same frequency range on a tower. We have just installed a 5.8GHz 120 vert sector at about 47m. Already on the same side of the tower @ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing in roughly the same direction and there is 4 channels separation between them. I read somewhere on this list that 5 foot separation should be enough but I am seeing major interference. We have a horizontal dish also on this tower for a critical link so changing the dish to horizontal is not an option. Also, the tower is full of high frequency dishes and mobile antennas so there isn't much chance of moving either antennas to a different height. Anyone got any ideas?? Cheers, P. -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.12.5/150 - Release Date: 27/10/2005 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- Lonnie Nunweiler Valemount Networks Corporation http://www.star-os.com/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] 5GHz interference
I don't believe so as all the other kit is either mobile operators or +28GHz although I haven't fully tested yet. However, I do know that if I set the new 120' superpass sector to be a client of the Radiowaves 28db parabolic dish it shows a quality of around 30db whilst the normal client (another Radiowaves 28db parabolic 18km away) only shows 26db. Are any of your systems that are 15 foot apart a sector above a dish pointing in roughly the same direction? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lonnie Nunweiler Sent: 28 October 2005 21:16 To: WISPA General List Subject: Re: [WISPA] 5GHz interference Are you sure the interference is caused by the other dish? We have systems much closer than 15 foot apart and see no ill effects. With all the other gear on that tower could you in fact be seeing interference from something else? Lonnie On 10/28/05, Paul Hendry [EMAIL PROTECTED] wrote: Hi guys and gals, Just seeing if anyone has any advise when mounting more than 1 antenna in the same frequency range on a tower. We have just installed a 5.8GHz 120 vert sector at about 47m. Already on the same side of the tower @ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing in roughly the same direction and there is 4 channels separation between them. I read somewhere on this list that 5 foot separation should be enough but I am seeing major interference. We have a horizontal dish also on this tower for a critical link so changing the dish to horizontal is not an option. Also, the tower is full of high frequency dishes and mobile antennas so there isn't much chance of moving either antennas to a different height. Anyone got any ideas?? Cheers, P. -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.12.5/150 - Release Date: 27/10/2005 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- Lonnie Nunweiler Valemount Networks Corporation http://www.star-os.com/ -- 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: 7.1.362 / Virus Database: 267.12.5/150 - Release Date: 27/10/2005 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.12.5/150 - Release Date: 27/10/2005 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] 5GHz interference
We use 3 foot dishes and 21 dB patches, and yes they point in roughly the same direction. We don't have that many 120 sectors so I have no experience. The 21 dB patches are only 12 degrees wide so maybe that is part of why we see such low interaction. Lonnie On 10/28/05, Paul Hendry [EMAIL PROTECTED] wrote: I don't believe so as all the other kit is either mobile operators or +28GHz although I haven't fully tested yet. However, I do know that if I set the new 120' superpass sector to be a client of the Radiowaves 28db parabolic dish it shows a quality of around 30db whilst the normal client (another Radiowaves 28db parabolic 18km away) only shows 26db. Are any of your systems that are 15 foot apart a sector above a dish pointing in roughly the same direction? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lonnie Nunweiler Sent: 28 October 2005 21:16 To: WISPA General List Subject: Re: [WISPA] 5GHz interference Are you sure the interference is caused by the other dish? We have systems much closer than 15 foot apart and see no ill effects. With all the other gear on that tower could you in fact be seeing interference from something else? Lonnie On 10/28/05, Paul Hendry [EMAIL PROTECTED] wrote: Hi guys and gals, Just seeing if anyone has any advise when mounting more than 1 antenna in the same frequency range on a tower. We have just installed a 5.8GHz 120 vert sector at about 47m. Already on the same side of the tower @ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing in roughly the same direction and there is 4 channels separation between them. I read somewhere on this list that 5 foot separation should be enough but I am seeing major interference. We have a horizontal dish also on this tower for a critical link so changing the dish to horizontal is not an option. Also, the tower is full of high frequency dishes and mobile antennas so there isn't much chance of moving either antennas to a different height. Anyone got any ideas?? Cheers, P. -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.12.5/150 - Release Date: 27/10/2005 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- Lonnie Nunweiler Valemount Networks Corporation http://www.star-os.com/ -- 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: 7.1.362 / Virus Database: 267.12.5/150 - Release Date: 27/10/2005 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.12.5/150 - Release Date: 27/10/2005 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- Lonnie Nunweiler Valemount Networks Corporation http://www.star-os.com/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] 5GHz interference
Paul Hendry wrote: Hi guys and gals, Just seeing if anyone has any advise when mounting more than 1 antenna in the same frequency range on a tower. We have just installed a 5.8GHz 120” vert sector at about 47m. Already on the same side of the tower @ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing in roughly the same direction and there is 4 channels separation between them. I read somewhere on this list that 5 foot separation should be enough but I am seeing major interference. We have a horizontal dish also on this tower for a critical link so changing the dish to horizontal is not an option. Also, the tower is full of high frequency dishes and mobile antennas so there isn’t much chance of moving either antennas to a different height. Anyone got any ideas?? Cheers, P. Paul http://www.oregonfast.net/gofast/ap/Tower/Tower%20and%20truck%20007.jpg 2 5.8 trangos maybe 3' apart. And I have added recently 2- 5.3 star-os wrap sectors in between those 2 antennas. 20' away is another proxim 5'3 backhaul. All pointing to the same area. Maybe you have a bad pigtail or connection? George -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] 5GHz interference
Is there any chance of interference from the mobile antennas? There are a couple real close to the new sector but I didn't think 900mhz would affect a CM9 running at 5.8?? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of George Sent: 29 October 2005 00:09 To: WISPA General List Subject: Re: [WISPA] 5GHz interference Paul Hendry wrote: Hi guys and gals, Just seeing if anyone has any advise when mounting more than 1 antenna in the same frequency range on a tower. We have just installed a 5.8GHz 120” vert sector at about 47m. Already on the same side of the tower @ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing in roughly the same direction and there is 4 channels separation between them. I read somewhere on this list that 5 foot separation should be enough but I am seeing major interference. We have a horizontal dish also on this tower for a critical link so changing the dish to horizontal is not an option. Also, the tower is full of high frequency dishes and mobile antennas so there isn’t much chance of moving either antennas to a different height. Anyone got any ideas?? Cheers, P. Paul http://www.oregonfast.net/gofast/ap/Tower/Tower%20and%20truck%20007.jpg 2 5.8 trangos maybe 3' apart. And I have added recently 2- 5.3 star-os wrap sectors in between those 2 antennas. 20' away is another proxim 5'3 backhaul. All pointing to the same area. Maybe you have a bad pigtail or connection? George -- 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: 7.0.344 / Virus Database: 267.12.4/143 - Release Date: 19/10/2005 -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.12.4/143 - Release Date: 19/10/2005 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] 5GHz interference
How much you expecting to get outta that sector ? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Hendry Sent: Friday, October 28, 2005 4:11 PM To: 'WISPA General List' Subject: [WISPA] 5GHz interference Hi guys and gals, Just seeing if anyone has any advise when mounting more than 1 antenna in the same frequency range on a tower. We have just installed a 5.8GHz 120 vert sector at about 47m. Already on the same side of the tower @ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing in roughly the same direction and there is 4 channels separation between them. I read somewhere on this list that 5 foot separation should be enough but I am seeing major interference. We have a horizontal dish also on this tower for a critical link so changing the dish to horizontal is not an option. Also, the tower is full of high frequency dishes and mobile antennas so there isn't much chance of moving either antennas to a different height. Anyone got any ideas?? Cheers, P. -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.362 / Virus Database: 267.12.5/150 - Release Date: 27/10/2005 -- 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] 5GHz interference
Interference distance with antennas will depend on a lot of factors. Antenna type, radio type, protocol etc. etc. etc. As a rule, with that much channel separation I'd think that you'd not see interference. I'm guessing you have something else going on. Have you tried, just for kicks, to move to a closer channel? I've got some sites where there's so much outside interference that my best performance is with all radios on the same channel. 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: George [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Friday, October 28, 2005 4:09 PM Subject: Re: [WISPA] 5GHz interference Paul Hendry wrote: Hi guys and gals, Just seeing if anyone has any advise when mounting more than 1 antenna in the same frequency range on a tower. We have just installed a 5.8GHz 120” vert sector at about 47m. Already on the same side of the tower @ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing in roughly the same direction and there is 4 channels separation between them. I read somewhere on this list that 5 foot separation should be enough but I am seeing major interference. We have a horizontal dish also on this tower for a critical link so changing the dish to horizontal is not an option. Also, the tower is full of high frequency dishes and mobile antennas so there isn’t much chance of moving either antennas to a different height. Anyone got any ideas?? Cheers, P. Paul http://www.oregonfast.net/gofast/ap/Tower/Tower%20and%20truck%20007.jpg 2 5.8 trangos maybe 3' apart. And I have added recently 2- 5.3 star-os wrap sectors in between those 2 antennas. 20' away is another proxim 5'3 backhaul. All pointing to the same area. Maybe you have a bad pigtail or connection? George -- 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/
