[WISPA] Collisions in RF
Hi all, As standard 802.11 is a half-duplex technology, does anyone know exactly where collisions occur? I.e. is it in the air between antennas, on the feeder inside the antenna, on the jumper/pigtail between the antenna and the radio, on the radio card itself, or all of the above? Cheers, P. -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.14.23/240 - Release Date: 25/01/2006 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Collisions in RF
Generally speaking the collisions occur at the antenna itself - on the RF receive side Mac Dearman Maximum Access, LLC. Authorized Barracuda Reseller MikroTik RouterOS Certified www.inetsouth.com www.mac-tel.us Rayville, La. 318.728.8600 318.303.4227 318.303.4229 Paul Hendry wrote: Hi all, As standard 802.11 is a half-duplex technology, does anyone know exactly where collisions occur? I.e. is it in the air between antennas, on the feeder inside the antenna, on the jumper/pigtail between the antenna and the radio, on the radio card itself, or all of the above? Cheers, P. -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
RE: [WISPA] Collisions in RF
That's why many, on a quarterly basis, liberally apply their WiFi Lubrication -- keeps things well oiled and humming http://j-walk.com/other/wifispray/ wink -Charles --- WiNOG Austin, TX March 13-15, 2006 http://www.winog.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mac Dearman Sent: Thursday, January 26, 2006 3:09 AM To: WISPA General List Subject: Re: [WISPA] Collisions in RF Generally speaking the collisions occur at the antenna itself - on the RF receive side Mac Dearman Maximum Access, LLC. Authorized Barracuda Reseller MikroTik RouterOS Certified www.inetsouth.com www.mac-tel.us Rayville, La. 318.728.8600 318.303.4227 318.303.4229 Paul Hendry wrote: Hi all, As standard 802.11 is a half-duplex technology, does anyone know exactly where collisions occur? I.e. is it in the air between antennas, on the feeder inside the antenna, on the jumper/pigtail between the antenna and the radio, on the radio card itself, or all of the above? Cheers, P. -- 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] Collisions in RF
*Disclaimers WiFi Speed Spray is safe and effective when used as directed. However, the product is known to the State of California to cause cancer; developmental toxicity; and/or male pattern baldness. For outdoor use only. Do not use near electrical appliances. WiFi Speed Spray should not be used in the presence of pregnant women, women who have been pregnant, or women who may some day become pregnant. Keep away from children and household pets (especially birds). Do not take internally. If a persistent cough or partial paralysis develops, consult a physician, Made in Malaysia, by Malaysians. Not intended for use by Malaysians. Charles Wu wrote: That's why many, on a quarterly basis, liberally apply their "WiFi Lubrication" -- keeps things well oiled and humming http://j-walk.com/other/wifispray/ wink -Charles --- WiNOG Austin, TX March 13-15, 2006 http://www.winog.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Mac Dearman Sent: Thursday, January 26, 2006 3:09 AM To: WISPA General List Subject: Re: [WISPA] Collisions in RF Generally speaking the collisions occur at the antenna itself - on the RF receive side Mac Dearman Maximum Access, LLC. Authorized Barracuda Reseller MikroTik RouterOS Certified www.inetsouth.com www.mac-tel.us Rayville, La. 318.728.8600 318.303.4227 318.303.4229 Paul Hendry wrote: Hi all, As standard 802.11 is a half-duplex technology, does anyone know exactly where collisions occur? I.e. is it in the air between antennas, on the feeder inside the antenna, on the jumper/pigtail between the antenna and the radio, on the radio card itself, or all of the above? Cheers, P. -- Brian Rohrbacher Reliable Internet, LLC www.reliableinter.net Cell 269-838-8338 "Caught up in the Air" 1 Thess. 4:17 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] 900b mhz omni
Ye old antenna shop in colorado no joke it is the name of the company, some little old man makes them in his garage, think they are like 15 dbi lokks like an oil can, but they work wellRon Wallace [EMAIL PROTECTED] wrote:Try Cool Dish, http://www.thecooldish.com/ they have a MTI 11 dB omni, Pricey, Its like $1350. MTI Is an Isreali Co. weighs like 27#. It looks like the best there is to me. Ron Wallace Hahnron, Inc. 220 S. Jackson Dt. Addison, MI 49220 Phone: (517)547-8410 Mobile: (517)605-4542 e-mail: [EMAIL PROTECTED] [EMAIL PROTECTED]-Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]Sent: Wednesday, January 25, 2006 10:04 PMTo: 'WISPA General List'Subject: [WISPA] 900b mhz omniAnybody know where i can find an H-pol 900 mhz omni w/ higer gain than 9Db?thanks, chris-- WISPA Wireless List: wireless@wispa.orgSubscribe/Unsubscribe:http://lists.wispa.org/mailman/listinfo/wirelessArchives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.orgSubscribe/Unsubscribe:http://lists.wispa.org/mailman/listinfo/wirelessArchives: http://lists.wispa.org/pipermail/wireless/ Do you Yahoo!? With a free 1 GB, there's more in store with Yahoo! Mail.-- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] testing
123 -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] 900b mhz omni
Hello ccooper, Why go higher then 9db? The pattern will shrink to paper thin figuratively speaking. We have wy better luck with 9db or less at 900mhz. Barry Wednesday, January 25, 2006, 10:04:54 PM, you wrote: cic Anybody know where i can find an H-pol 900 mhz omni w/ higer gain than 9Db? cic thanks, cic chris -- Best regards, Barrymailto:[EMAIL PROTECTED] -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] TRANGO!!
Tom: The unique connector isn't required IF the equipment is intended for, marketed, and distributed to be installed by professional installers (who can be reasonably assumed to be able to do the math and not use an antenna which results in violation of Part-15 EIRP limits.) Unique connector requirement was intended for consumer gear like Wi-Fi APs, wireless video cameras, etc. sold through the mass market. Completely ironic and ineffective; laughable even when you consider that you can get high-gain antennas for the Linksys AP unique connectors at Radio Shack. I strongly prefer a good old reliable, sturdy easy-to-weatherproof Type N connector on outdoor gear. Thanks, Steve On Jan 18, 2006, at 17:19, Tom DeReggi wrote: Required for FCC reuirement of unique connector rule. PErsonally Ip refer them to stay as is with the connectors. That way they all stay the same and one cable to stock. Tom DeReggi --- Steve Stroh 425-939-0076 | [EMAIL PROTECTED] | www.stevestroh.com -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] Cat5 cable?
Anyone know of an outdoor cat5 cable that also has an extra pair of conductors bundled? Thanks 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] Collisions in RF
Anyone hearany rumors of future support of thisfrom Trango or Moto??? How about a volume purchase agreement from WISPA? And if you spray it vertically or horizontally does it make a difference? Mark NashNetwork EngineerUnwiredOnline.Net350 Holly StreetJunction City, OR 97448http://www.uwol.net541-998-541-998-5599 fax - Original Message - From: Paul Hendry To: 'WISPA General List' Sent: Thursday, January 26, 2006 10:40 AM Subject: RE: [WISPA] Collisions in RF I would do but it only seems to be approved for 802.11b and we’re using 11a. From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kurt FankhauserSent: 27 January 2006 19:47To: 'WISPA General List'Subject: RE: [WISPA] Collisions in RF I just ordered a case this morning. 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 Brian RohrbacherSent: Wednesday, January 25, 2006 8:33 PMTo: WISPA General ListSubject: Re: [WISPA] Collisions in RF *Disclaimers WiFi Speed Spray™ is safe and effective when used as directed. However, the product is known to the State of California to cause cancer; developmental toxicity; and/or male pattern baldness. For outdoor use only. Do not use near electrical appliances. WiFi Speed Spray™ should not be used in the presence of pregnant women, women who have been pregnant, or women who may some day become pregnant. Keep away from children and household pets (especially birds). Do not take internally. If a persistent cough or partial paralysis develops, consult a physician, Made in Malaysia, by Malaysians. Not intended for use by Malaysians. Charles Wu wrote: That's why many, on a quarterly basis, liberally apply their "WiFiLubrication" -- keeps things well oiled and humminghttp://j-walk.com/other/wifispray/wink-Charles---WiNOG Austin, TXMarch 13-15, 2006http://www.winog.com -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] OnBehalf Of Mac DearmanSent: Thursday, January 26, 2006 3:09 AMTo: WISPA General ListSubject: Re: [WISPA] Collisions in RFGenerally speaking the collisions occur at the antenna itself - on the RF receive sideMac DearmanMaximum Access, LLC.Authorized Barracuda ResellerMikroTik RouterOS Certifiedwww.inetsouth.comwww.mac-tel.usRayville, La.318.728.8600 318.303.4227318.303.4229Paul Hendry wrote: Hi all, As standard 802.11 is a half-duplex technology, does anyone know exactly where collisions occur? I.e. is it in the air between antennas, on the feeder inside the antenna, on the jumper/pigtail between the antenna and the radio, on the radio card itself, or all of the above?Cheers,P. -- Brian RohrbacherReliable Internet, LLCwww.reliableinter.netCell 269-838-8338"Caught up in the Air" 1 Thess. 4:17 --No virus found in this incoming message.Checked by AVG Free Edition.Version: 7.1.375 / Virus Database: 267.14.23/240 - Release Date: 25/01/2006 --No virus found in this outgoing message.Checked by AVG Free Edition.Version: 7.1.375 / Virus Database: 267.14.23/240 - Release Date: 25/01/2006 -- WISPA Wireless List: wireless@wispa.orgSubscribe/Unsubscribe:http://lists.wispa.org/mailman/listinfo/wirelessArchives: 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] wisp-router fails again
Brian, You have other choices. DoubleRadius is stocking Mikrotik now, and they have good customer service policies, significant stock, and fair prices. WISP-router, has always done right by me, but you have a choice, if they don't do right by you. Tom DeReggi RapidDSL Wireless, Inc IntAirNet- Fixed Wireless Broadband - Original Message - From: Brian Rohrbacher [EMAIL PROTECTED] To: Conversations over a new WISP Trade Organization wireless@wispa.org; [EMAIL PROTECTED] Sent: Tuesday, January 24, 2006 6:22 PM Subject: [WISPA] wisp-router fails again After hearing all the good posts about them I thought I must have done something wrong. I called back to give them one more chance to talk with me about this. This is how it went down. Keep in mind I was very polite. I only called to request info about their policies. I thought if the policy was somewhere I signed, or should have read or somethingthere may be something legitimate to what Beverly claims. Because if I had access to the policy from the phone order, packing slip or invoiceI can't really say much because I should have read it. If that was the case I could only complain about the crappy policy. So far, my digging has yielded no such policy. Ok, so I just called. Beverly answers the phone. I say hey this is Brian, I talked to you earlier. I am looking online at your site trying to find information on your seven day policy you referenced. She says it is on bottom of packing slip. I say I am holding the invoice and packing slip and it is not there. I say, So you don't have it posted anywhere? She says It's been too long and there is NO WAY I can do anything about this, goodbye And hangs up on me. Seriously, who hangs up on customers calling to request a policy? This was the perfect chance to prove to me where the policy was in text and why I should have read. Getting hung up on pretty much tells me no such policy existed for my order. You know what I just noticed. At the bottom of the invoice it says, ALL goods returned for credit, replacement or repair require That is the last line. maybe there is more info after that. Can someone look at their invoice and see if there is more wording after that? I'd like to know if the 7 day policy if just cut off my invoice (faulty printer maybe) or if Beverly is making this up. -- Brian Rohrbacher Reliable Internet, LLC www.reliableinter.net Cell 269-838-8338 Caught up in the Air 1 Thess. 4:17 -- 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] TRANGO!!
Tom: To me, sell @ Radio Shack = consumer = unique connector, sell @ Tessco = professional = standard connector. YMMV It IS a hard thing to enforce. It was written assuming good intent by the manufacturers. It's been the case that some manufacturers have had to change from standard connectors to unique connectors, and some unique connectors became not unique enough for the FCC's taste. I was told once what the distinction was that the FCC uses between unique and standard RF connectors... but I was asked not to make it public. It's amusing, and simple. Thanks, Steve On Jan 26, 2006, at 14:09, Tom DeReggi wrote: Thanks. I was not aware of that. Does that mean that once a manufacturer installs a N connector on their gear, it no longer is allowed to be sold at Radio Shack or Walmart. Does that Mean WiMaxwill never be allowed to be sold at Walmart legally? Does this mean that oncethey add an N connector they are no longer allowed to sell it to a municipality (an end user) unless they sell it through a reseller/consultant that will provide the work? Who is to define who is the general publicversus skilled engineer? And is thisdetermined by the purchaser or the distributor? If sold through Tessco a company specializing in dealing with RF specialists, can the end user buy it from them, if the sales rep decides to sell to a home person? Does it mean it can't be distributed through Radio Shack if they have a policy to check that the buyer is a professional installer? Linksys sells both to consumers and RF specialists. If one product is labeled asconsumer line or labeled professional series, even if its the exact same product, does it define its right to use N connector? I think there are simple ways to answer those questions, when everyone is working in good faith. But if it ever came push to shove, it would be a hard thing to enforce. Tom DeReggi RapidDSL Wireless, Inc IntAirNet- Fixed Wireless Broadband --- Steve Stroh 425-939-0076 | [EMAIL PROTECTED] | www.stevestroh.com -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
