Tom, The last quotes I have done have put Bridgewave much cheaper than Dragonwave for 1.2Gpbs... although Dragonwave by far has a range benefit to it.
Daniel White 3-dB Networks http://www.3dbnetworks.com >-----Original Message----- >From: [email protected] [mailto:[email protected]] On >Behalf Of Tom DeReggi >Sent: Monday, January 19, 2009 2:51 PM >To: [email protected]; WISPA General List >Subject: Re: [WISPA] Ceragon, Dragonwave and whatelse? > >Bob, > >I think you are right. (To give Ceragon credit where credit is due). >Although, I'm positive Dragonwave was the first to do it with 366mbps >per >radio ODU with Ethernet. >Ceragon was stuck at 200-250mbps per ODU for a while there. > >Its important to note that breaking the 350mbps barrier, and radio >combining >(for double) was a core accomplishment, that put the value proposition >of >6-23Ghz above that of inexistence 80Ghz technology with multiple hops, >to >deliver near equivellent capacity, at lower cost. > >Tom DeReggi >RapidDSL & Wireless, Inc >IntAirNet- Fixed Wireless Broadband > > >----- Original Message ----- >From: <[email protected]> >To: "WISPA General List" <[email protected]> >Sent: Monday, January 19, 2009 3:53 PM >Subject: Re: [WISPA] Ceragon, Dragonwave and whatelse? > > >>I believe (but not sure) Ceragon was the first with a DPRM mount. >> >> But agree with everything else >> >> :-) >> Sent from my Verizon Wireless BlackBerry >> >> -----Original Message----- >> From: "Tom DeReggi" <[email protected]> >> >> Date: Mon, 19 Jan 2009 12:32:12 >> To: WISPA General List<[email protected]> >> Subject: Re: [WISPA] Ceragon, Dragonwave and whatelse? >> >> >> Good advice Bob, but I'll add.... There is a purpose for each model, >and >> for >> that matter also a specific manufacturer, and all ODU is not always >the >> best >> choice. >> >> For example... Trango boasts several core benefits, for some >> circumstances. >> Its Giga Split archetiecture allows Coax installs to extend up to >1000ft. >> (Dragonwave's Coax split Archetecture, still has limits to 150-200 >feet or >> so, according to their docs.). Trango's Apex allows optional Fiber >> termination with a very easilly accessible connectors. (Dragonwave on >the >> other hand has the Fiber connectors poorly located, that require >taking >> the >> case apart in order to reach them.) Because of this, for long cable >> deployments, I prefer Trango. Or if on short deadline, and Freq >Coords >> not >> complete, Trango equipment can be ordered in advance of completion >because >> they can support more channels per ODU model. (For example, 18 and 23 >Ghz >> only have one ODU Pair choice). Its also important to note, it >should >> not >> be midunderstood the purpose of Trango Gigas's 4 ports. They are >Private >> VLAN. This is really great for when a link needs to be shared. For >> example, >> Port 1 for the customer that paid to get the link installed. Port2 for >the >> ISP's other traffic to serve other clients in the building. This is >> enabled >> with zero complexity, that way. The far end switch/router equipment >do >> not >> need configuration or being the same to accommodate segregation. This >is >> not >> useful for all installs, but in some cases, this is a unique benefit. >> >> Dragonwave offers different benefits... For example... The Airpair >> supports >> a whole wealth of different ODU Radios that can be interchanged with >the >> Indoor rack unit. If one doesn't buy advanced replacement warrantees, >its >> much cheaper to just order in an ODU seperately, than a Full outdoor >> radio. >> I'd rather float $3000 to get a replacements ODU in, than $12,000 for >a >> full >> Horizon. We'd use All ODU models where we have live backup links in >> place, >> and can afford to wait for a Manufacturer replacement. With that >said, >> we >> love All ODU units, it makes for a much quicker/simpler install, with >Zero >> Footprint needed inside. This is great for MTU buildings, where they >need >> to >> be installed in small closets, or penthouse walls. The Dragonwaves >were >> the >> first to be able to combine radios for double the capacity, so more >> expandabilty. Airpair offers 25% more capacity than the Trango giga, >> where >> split archetecture is needed. Dragonwave offers a dealer channel for >> those >> that will benefit from it. >> >> Tom DeReggi >> RapidDSL & Wireless, Inc >> IntAirNet- Fixed Wireless Broadband >> >> >> ----- Original Message ----- >> From: "Bob Moldashel" <[email protected]> >> To: "WISPA General List" <[email protected]> >> Sent: Sunday, January 18, 2009 6:37 PM >> Subject: Re: [WISPA] Ceragon, Dragonwave and whatelse? >> >> >>> Well....a couple of notes... >>> >>> I personally would use an all ODU version because it makes servicing >a >>> breeze and also swapping out a bad radio quick and simple. No >guessing >>> about is it the indoor unit, is it the outdoor unit, is it the >interface >>> cable??? Get an all ODU like the Dragonwave Horizon and you run CAT5 >>> and you're done. If you get a cable issue you either can't log in or >see >>> no handshake with your switch/router or..If one of the POE lines are >bad >>> your radio will continue to reboot. Troubleshoot the radio on the >ground >>> with a patch cable and you rule out your cabling system. >>> >>> Like was mentioned elsewhere here if you are concerned with theft you >>> can lock the radios in place. This can be done by putting a security >>> screw in place of the grounding screw and use a cable assembly to >lock >>> it up. If the theft concern is that high you should probably consider >>> another location. >>> >>> With weather being a concern you could always install a second >parallel >>> link on the same antenna using a DPRM mount. Then if one link fails >the >>> other could be engaged to carry the traffic. >>> >>> I do not see this link really working (high 9's reliability) without >4' >>> antennas. That of course leads to new mounting issues. At 6 Ghz. you >>> are looking at 6' minimum dishes. Figure 600-800 lbs per antenna >with >>> mount not to say the least about cost, shipping and installation. >>> >>> I personally like Dragonwave for 2 reasons. 1 - The service facility >is >>> in this part of the hemisphere which allows me to get equipment >>> overnight in emergencies. 2 - One year advanced replacement is only >>> $500/year per radio. Allows me to sleep easily. >>> >>> This does not mean I do not like Ceragon. They are just doing some >>> growing pains things at the moment and most of the stuff is serviced >>> overseas unless it is an interface or something simple. >>> >>> Dragonwave support is very responsive though you do have to leave >your >>> name with a service and they call you back. I have installed more >than >>> 45 Dragonwave links in the past 2 years and have only had 2 failures. >>> >>> There are other options but history, price or delivery will kill them >as >>> an option. >>> >>> And stay away from equipment that does switching for you. Do all your >>> control external to the radio. >>> >>> Bob >>> >>> >>> >>> >>> Paolo Di Francesco wrote: >>>> Dear All, >>>> >>>> we are considering to move to licensed frequencies for back hauling >and >>>> therefore some hints would be really appreciated. We are looking at >2 >>>> main manufacturers (Ceragon/Dragonwave) so the problem is "which one >>>> fits better for our needs"? >>>> >>>> Just to summarize: >>>> >>>> a) links are around 20-25 miles >>>> b) antennas: the smaller the better >>>> c) robustness is very important >>>> d) average life: 3 years >>>> >>>> >From what I have read in the data sheets I have done the following >>>> considerations: >>>> >>>> 1) Dragonwave Horizon is nice but only if your site is well >protected >>>> from "sabotage and stealing". The "all outdoor" approach is nice but >it >>>> has the drawback that if somebody takes the whole unit they will >have a >>>> brand new unit working. With the IDU/ODU approach they will have >only >>>> half of the "banknote", so after the first or second time, they will >not >>>> spend time having something useless. >>>> 2) Dragonwave Horizon can be a problem if you don't use fiber from >the >>>> unit down to your switch. In few words, we have sites with huge >amount >>>> or EM fields, so even using shielded cables (e.g. Belden 1300A) we >get >>>> only few ethernet megabits. So we should use fiber to go up the >tower, >>>> but maybe be IDU/ODU approach is more robust (comments welcome). >>>> 3) All outdoor means that when you have to re-use the devices >somewhere >>>> else, you have to buy a whole new thing instead of just swapping the >>>> ODU. >>>> 4) In any case the (all outdoor or IDU/ODU) when the tower is frozen >>>> (and when I mean frozen I mean a whole block of ice) then it does >not >>>> change much, you have to wait the better season to work on that. >>>> 5) Performances look more or less the same. >>>> 6) I don't know much about prices, I have looked on some website, I >am >>>> still exploring this aspect >>>> 7) Is anybody using the software-switch capabilities on this devices >or >>>> just using them as transparent bridges for your router/switch? Do >you >>>> need to reset them often? >>>> >>>> Comments are welcome. >>>> >>>> Am I missing some other good brand? >>>> >>>> Thank you. >>>> >>>> >>> >>> >>> >>> --------------------------------------------------------------------- >----------- >>> WISPA Wants You! Join today! >>> http://signup.wispa.org/ >>> --------------------------------------------------------------------- >----------- >>> >>> WISPA Wireless List: [email protected] >>> >>> 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. >>> Version: 7.5.552 / Virus Database: 270.10.8/1899 - Release Date: >>> 1/17/2009 >>> 5:50 PM >>> >>> >> >> >> >> ---------------------------------------------------------------------- >---------- >> WISPA Wants You! 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