[WISPA] Multi-Mini-PCI self interference
Has anyonoe tested the amount of self interference created between two MiniPCI RF cards mounted in the same box in the same spectrum range? Does the connector bleed RF? My original thought for multi-Slot boards (Mikroti/WAR) was that if I wanted to put in 4 cards, I could put in a 2.4, 900, 5.3, and 5.8G all in the same box without self interference since they were in different spectrum ranges. But can two cards be put in, within the same range (Qty 2- 5.3Ghz cards for example) without interference? Tom DeReggi RapidDSL Wireless, Inc IntAirNet- Fixed Wireless Broadband - Original Message - From: Travis Johnson [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Saturday, November 18, 2006 11:09 PM Subject: Re: [WISPA] SR9 problems.. Hi, I wouldn't recommend more than one SR9 per RB532. They draw a lot of power, and you will probably burn up your RB after a while. Also, there is a frequency conversion chart in the Mikrotik forums on how the 2.4ghz channels translate to the 900mhz channels. Mikrotik will be fixing this in the 3.0 release. Travis Microserv J. Vogel wrote: I finally got a chance to play with the SR9 cards I got in last week. Installed them in a RB532 running 2.9.30, along with one Prism nl-2511mp plus and a RouterBoard r52 (Atheros chipset?). Not working. First off, the SR9s are big enough that they don't fit everwhere you might think they should... such as on the top side of a RB112. Neither do they fit in one of the two slots in the expansion daughterboard for a RB532. Swapping cards around, I did get the two SR9s in with the other two cards above. One is on the daughterboard, the other is (I think) on the back side of RB532. Fired up the system, and it shows four wireless interfaces. The Prism, and the rb52 (which shows up as Atheros AR5413) both work, am able to configure them and pass traffic through them as desired. The other two interfaces are listed as AR5213 cards. Is that correct? When I attempt to configure those interfaces (using winbox) the only option I have available for the RF band is 2.4Ghz, along with the B,G 10mHz and 5 mHz options in that band. Channels 1 through 11 in the 2.4 range are available for me to select. Nothing about 900 mHz. What am I doing wrong? John -- 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] Multi-Mini-PCI self interference
I haven't tested with equipment, but I am running several repeaters with two 2.4 Ghz cards in the same enclosure (on the same board) without issue. I am even managing to do it without any separation to speak of on the antennas, as they are mounted within 18 inches of each other in several cases. No apparent problems with interference that I can detect, as long as the channel separation is adequate. John Tom DeReggi wrote: Has anyonoe tested the amount of self interference created between two MiniPCI RF cards mounted in the same box in the same spectrum range? Does the connector bleed RF? My original thought for multi-Slot boards (Mikroti/WAR) was that if I wanted to put in 4 cards, I could put in a 2.4, 900, 5.3, and 5.8G all in the same box without self interference since they were in different spectrum ranges. But can two cards be put in, within the same range (Qty 2- 5.3Ghz cards for example) without interference? Tom DeReggi RapidDSL Wireless, Inc IntAirNet- Fixed Wireless Broadband - Original Message - From: Travis Johnson [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Saturday, November 18, 2006 11:09 PM Subject: Re: [WISPA] SR9 problems.. Hi, I wouldn't recommend more than one SR9 per RB532. They draw a lot of power, and you will probably burn up your RB after a while. Also, there is a frequency conversion chart in the Mikrotik forums on how the 2.4ghz channels translate to the 900mhz channels. Mikrotik will be fixing this in the 3.0 release. Travis Microserv J. Vogel wrote: I finally got a chance to play with the SR9 cards I got in last week. Installed them in a RB532 running 2.9.30, along with one Prism nl-2511mp plus and a RouterBoard r52 (Atheros chipset?). Not working. First off, the SR9s are big enough that they don't fit everwhere you might think they should... such as on the top side of a RB112. Neither do they fit in one of the two slots in the expansion daughterboard for a RB532. Swapping cards around, I did get the two SR9s in with the other two cards above. One is on the daughterboard, the other is (I think) on the back side of RB532. Fired up the system, and it shows four wireless interfaces. The Prism, and the rb52 (which shows up as Atheros AR5413) both work, am able to configure them and pass traffic through them as desired. The other two interfaces are listed as AR5213 cards. Is that correct? When I attempt to configure those interfaces (using winbox) the only option I have available for the RF band is 2.4Ghz, along with the B,G 10mHz and 5 mHz options in that band. Channels 1 through 11 in the 2.4 range are available for me to select. Nothing about 900 mHz. What am I doing wrong? John -- 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] Multi-Mini-PCI self interference
Seems to me that the 200mw cards in the past had issues being so loud and close, but the atheros cm9's close have not been an issue for me. As I recall, the higher powered cards I used ch 1 and ch 11. Now my pops are 5 gig and 2 gig and I don't notice any problems. George Tom DeReggi wrote: Has anyonoe tested the amount of self interference created between two MiniPCI RF cards mounted in the same box in the same spectrum range? Does the connector bleed RF? My original thought for multi-Slot boards (Mikroti/WAR) was that if I wanted to put in 4 cards, I could put in a 2.4, 900, 5.3, and 5.8G all in the same box without self interference since they were in different spectrum ranges. But can two cards be put in, within the same range (Qty 2- 5.3Ghz cards for example) without interference? Tom DeReggi RapidDSL Wireless, Inc IntAirNet- Fixed Wireless Broadband - Original Message - From: Travis Johnson [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Saturday, November 18, 2006 11:09 PM Subject: Re: [WISPA] SR9 problems.. Hi, I wouldn't recommend more than one SR9 per RB532. They draw a lot of power, and you will probably burn up your RB after a while. Also, there is a frequency conversion chart in the Mikrotik forums on how the 2.4ghz channels translate to the 900mhz channels. Mikrotik will be fixing this in the 3.0 release. Travis Microserv J. Vogel wrote: I finally got a chance to play with the SR9 cards I got in last week. Installed them in a RB532 running 2.9.30, along with one Prism nl-2511mp plus and a RouterBoard r52 (Atheros chipset?). Not working. First off, the SR9s are big enough that they don't fit everwhere you might think they should... such as on the top side of a RB112. Neither do they fit in one of the two slots in the expansion daughterboard for a RB532. Swapping cards around, I did get the two SR9s in with the other two cards above. One is on the daughterboard, the other is (I think) on the back side of RB532. Fired up the system, and it shows four wireless interfaces. The Prism, and the rb52 (which shows up as Atheros AR5413) both work, am able to configure them and pass traffic through them as desired. The other two interfaces are listed as AR5213 cards. Is that correct? When I attempt to configure those interfaces (using winbox) the only option I have available for the RF band is 2.4Ghz, along with the B,G 10mHz and 5 mHz options in that band. Channels 1 through 11 in the 2.4 range are available for me to select. Nothing about 900 mHz. What am I doing wrong? John -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- George Rogato Welcome to WISPA www.wispa.org 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] Multi-Mini-PCI self interference
I have a site with 3 repeater links at 5.x GHz and 1 AP in the 2.4 GHz band. Our standard AP is now 2x2.4 GHz and 2x900 MHz. We really blanket an area like that. If we have LOS we use 2.4 GHz otherwise we use 900 MHz. I can't give any real numbers as to interference but it does work. I make use of top and bottom radios and channel spacing to provide separation. Lonnie On 11/19/06, Tom DeReggi [EMAIL PROTECTED] wrote: Has anyonoe tested the amount of self interference created between two MiniPCI RF cards mounted in the same box in the same spectrum range? Does the connector bleed RF? My original thought for multi-Slot boards (Mikroti/WAR) was that if I wanted to put in 4 cards, I could put in a 2.4, 900, 5.3, and 5.8G all in the same box without self interference since they were in different spectrum ranges. But can two cards be put in, within the same range (Qty 2- 5.3Ghz cards for example) without interference? Tom DeReggi RapidDSL Wireless, Inc IntAirNet- Fixed Wireless Broadband - Original Message - From: Travis Johnson [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Saturday, November 18, 2006 11:09 PM Subject: Re: [WISPA] SR9 problems.. Hi, I wouldn't recommend more than one SR9 per RB532. They draw a lot of power, and you will probably burn up your RB after a while. Also, there is a frequency conversion chart in the Mikrotik forums on how the 2.4ghz channels translate to the 900mhz channels. Mikrotik will be fixing this in the 3.0 release. Travis Microserv J. Vogel wrote: I finally got a chance to play with the SR9 cards I got in last week. Installed them in a RB532 running 2.9.30, along with one Prism nl-2511mp plus and a RouterBoard r52 (Atheros chipset?). Not working. First off, the SR9s are big enough that they don't fit everwhere you might think they should... such as on the top side of a RB112. Neither do they fit in one of the two slots in the expansion daughterboard for a RB532. Swapping cards around, I did get the two SR9s in with the other two cards above. One is on the daughterboard, the other is (I think) on the back side of RB532. Fired up the system, and it shows four wireless interfaces. The Prism, and the rb52 (which shows up as Atheros AR5413) both work, am able to configure them and pass traffic through them as desired. The other two interfaces are listed as AR5213 cards. Is that correct? When I attempt to configure those interfaces (using winbox) the only option I have available for the RF band is 2.4Ghz, along with the B,G 10mHz and 5 mHz options in that band. Channels 1 through 11 in the 2.4 range are available for me to select. Nothing about 900 mHz. What am I doing wrong? John -- 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/ -- 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/
