On Tue, 2011-02-15 at 00:34 -0500, Blair Davis wrote: > I use a lot of omni's... 5-10 cust each... > > The most radio's I have in one box is 3... one on 2.4GHz, one on > 900MHz, one on 5.8GHz > > And one other with one on 2.4GHz, one on 5.3GHz, and one on 5.8GHz > > And my experience with pigtails has been the opposite... > > The black ones work well, the clear ones are junk... >
I've used 3 radios in the past but, had to change that setup later on. I had to install 2 on one rb433 and the other on another rb433. I've used both, the black and clear pigtails and so far they both work fine. > YMMV > > On 2/14/2011 11:45 PM, ch...@htswireless.com wrote: > > That's just plain ignorant! 6 radios? I think the o=most I have ever > > attempted was 2 in one unit. I've heard too many horror stories...! > > Actually > > in this town there's another wisp using a vertical omni and a horizontal > > omni. Plus the town is only like 2k pop. I ran like that for the better > > part > > of a year until I finally got around to sectorizing. That only got delayed > > because a tower I leased space on got cut down.... > > > > > > Chris > > > > -----Original Message----- > > From: Optimum Wireless Services > > Sent: Monday, February 14, 2011 8:25 PM > > To: WISPA General List > > Subject: Re: [WISPA] My friend's logic > > > > On Mon, 2011-02-14 at 11:59 -0600, ch...@htswireless.com wrote: > > > My experience is that with the crappy little grey or black pigtails your > > > signal sucks. The copper braided pigtails like the Laird/Pac ones seem to > > > do > > > great. Not that I 'm downing Wisp-router, but they have always carried the > > > crappy ones. I have avoided ordering any pigtails from them for quite a > > > while so I don't know if they are still shipping those. Roc-noc, > > > Wlanparts, > > > Titan, to name a few always seen to ship the good copper ones. I've had 72 > > > clients connected to a Mikrotik AP running a horizontal omni with little > > > performance issues besides that fact that it had 72 clients on it... :) > > > > > > > > > Chris > > > > > Wow! 72 clients on an omni. That's impressive. Thats probably the only > > antenna trasnmiting around that area. I have an omni with 20 clients and > > get all sort of interference problems. > > > > Well, I'm glad I got a lot of explanations from the list. I WILL be > > printing these to show my friend. > > > > I just learned he has 6 radios installed on a RB600. How about that for > > self interference.... > > > > > > > > > -----Original Message----- > > > From: Brian Webster > > > Sent: Monday, February 14, 2011 10:06 AM > > > To: 'WISPA General List' ; wil...@optimumwireless.com > > > Subject: Re: [WISPA] My friend's logic > > > > > > I agree with Fred. It's not about the number of clients that causes the > > > problem. The physical separation of the radios is probably the key factor > > > in > > > the increased performance. Putting multiple radios with possibly leaky > > > pigtails inside the same enclosure can introduce opportunities for > > > self-interference by near field RF energies and mixing products. Unless an > > > enclosure have been specifically designed, tested and built for that > > > particular combination or radios and cable routing, there is no telling > > > how > > > it may or may not perform. Adding more radios to the MT just compounds the > > > problem. Having the RF section outside the MT box is never a bad idea to > > > avoid this phenomenon. > > > > > > Thank You, > > > Brian Webster > > > Skype: Radiowebst > > > www.wirelessmapping.com > > > www.Broadband-Mapping.com > > > > > > > > > -----Original Message----- > > > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On > > > Behalf Of Fred Goldstein > > > Sent: Monday, February 14, 2011 9:35 AM > > > To: wil...@optimumwireless.com; WISPA General List > > > Subject: Re: [WISPA] My friend's logic > > > > > > At 2/14/2011 08:50 AM, OptimumWS wrote: > > > > Hello. > > > > > > > > Thought I share this with the list. > > > > > > > > I have a friend that is using MT as ap on one of his towers with his > > > > radios in 10MHz and on another tower bullets with sector panels, > > > > similar set up on both towers except for the radios. He was explaining > > > > that he finds the bullets outperforms the ubiquiti radios on the MT by > > > > far. His > > > > explanation: > > > > > > > > "The reason why bullets outperfoms the radios intalled on a router > > > > board is because of the pigtail used from the radio to the antenna. > > > > This pigtail works like a electricity cable in that the thicker the > > > > cable the more current is able to pass through so, the mikrotik > > > > pigtails are way too thin. When there is a certain number of clients > > > > connected to that radio the pigtail saturates the radio traffic because > > > > of the 'high traffic or current passing through the pigtail' and as a > > > > result; links between clients and ap can be slow and performance > > > > decreases. Now, the bullets do not have any pigtail or other connector > > > > and thats a reason why links with bullets are more stable and performs > > > > better than having a routerboard and radios with pigtails." > > > > > > > > What you guys think of his logic? > > > > > > > > Note: > > > > Posted this on dslreports wisp mainling list as well so, for those also > > > > registered to that list: sorry for the double posts. > > > This was discussed on some vendor forums too, I think UBNTs. > > > > > > Most pigtails shipped with radios are too cheap for their own good. They > > > are not properly shielded. Some WISPs have found that they can put more > > > radios on a tower if they use better pigtails, which they either make > > > themselves or hand-select (one person found that Laird pigtails were > > > sometimes good, but not all of them). > > > > > > Pigtails can be lossy, reducing effective antenna gain, and can leak, > > > which > > > makes it susceptible to local interference. This has nothing to do with > > > the > > > number of clients, though. That's just silly. > > > > > > > > > -- > > > Fred Goldstein k1io fgoldstein "at" ionary.com > > > ionary Consulting http://www.ionary.com/ > > > +1 617 795 2701 > > > > > > > > > > > > ---------------------------------------------------------------------------- > > > ---- > > > WISPA Wants You! Join today! > > > 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/ > > > > > > > > > ----- > > > No virus found in this message. > > > Checked by AVG - www.avg.com > > > Version: 10.0.1204 / Virus Database: 1435/3443 - Release Date: 02/14/11 > > > > > > > > > > > > -------------------------------------------------------------------------------- > > > WISPA Wants You! Join today! > > > 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/ > > > > > > > > > > > > -------------------------------------------------------------------------------- > > > WISPA Wants You! Join today! > > > 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/ > > > > > > -------------------------------------------------------------------------------- > > WISPA Wants You! Join today! > > 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/ > > > > > > > > -------------------------------------------------------------------------------- > > WISPA Wants You! Join today! > > 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/ > > > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > 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/ -------------------------------------------------------------------------------- WISPA Wants You! Join today! 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/
