Sure, use a pipe to pipe kit. Hutton has them in a variety of sizes including a 4"-5" to 2" pipe to pipe kit. You'll want to use support brackets.
A quick search on www.huttononline.com came up with: Andrew MS100 pipe to pipe adapter, USE WITH 1-1/2"-3-1/2" OD TO 4"-9" Brad -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom DeReggi Sent: Friday, November 28, 2008 8:14 PM To: WISPA General List Subject: Re: [WISPA] Trango Apex Brad, "Yes, you can even mount a 15' antenna to a tower with 2" legs, but the antenna will still be attached to a 4" or larger pipe as it should. The larger pipe is then attached at several points to the 2" tower legs with cross members and tiebacks." That is a good point. However, all the pole to pole kits for tower leg to 4ft pole, were not any more heavy duty than the Antenna mount. I couldn't see any engineering gain, with them. UNless I just added likr pole to pole mounts instead of two. Are you aware of a Good Kit, that mounts 4" pole to 2" leg, that has a more reliable mechaism for mounting to the 2" leg? I guess what I'm saying is... What is teh cheapest lightest way, to accommodate a 4" Radiowave mount to the tower, without compromising engineering? Tom DeReggi RapidDSL & Wireless, Inc IntAirNet- Fixed Wireless Broadband ----- Original Message ----- From: "Brad Belton" <[EMAIL PROTECTED]> To: "'WISPA General List'" <wireless@wispa.org> Sent: Friday, November 28, 2008 7:23 PM Subject: Re: [WISPA] Trango Apex > Have to disagree. The thing I hate about antennas (and equipment) that > are > NOT like RadioWaves is they don't fit on the larger pipes. > > Something tells me RadioWaves makes their brackets they way they do for a > reason. Use the right diameter pipe and preferably schedule 40 or even > better yet schedule 80 thickness and you'll never need to revisit an > installation due to movement. > > Stabilizer bars are recommended on 4' antennas and included with 6' and > larger antennas. Use them whenever recommended...you'll be much more > happy > long term. > > Large pipes are not only useful for large antennas, but also beneficial > for > small antennas in the millimeter bands. The mounts we used for the last > BridgeWave AR80X-AES link we installed were 4" diameter and weighed a > hundred or more pounds each. The "X" in AR80X means 2' antennas...by no > means large antennas, but 80GHz can be sensitive to movement. We made > sure > there is no movement due to our mounts. <grin> > > Yes, you can even mount a 15' antenna to a tower with 2" legs, but the > antenna will still be attached to a 4" or larger pipe as it should. The > larger pipe is then attached at several points to the 2" tower legs with > cross members and tiebacks. > > > Brad > > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of Tom DeReggi > Sent: Friday, November 28, 2008 2:36 PM > To: WISPA General List > Subject: Re: [WISPA] Trango Apex > > The only thing I do NOT like about the Radiowave dishes are.... > > The mounts are designed for 4" pole. We usually mount to 3" pole, based on > weight, availabilty, and ease to work with. It can be mounted securely to > 2-3/8" pole, if lots of washers are used. Mounting to 2" pole, doesn't > really work. In an ideal world, it can be argued that for 3ft dishes, that > 3" pole is the minimal size viable to keep it stable enough and prevent > pivot windload. But if the only option is to mount to a 2" dia member, > its > the facts. Often to use these mounts on 2" pole, installers will use an > intermediate, pole to pole mount, and mount a 4" pole to the 2" tower > member > > pole. But its a pain in the neck to do that and much heavier to hoist, > and > the antenna is still vulnerable to the weakest link, the 2" tower member. > Or > > they Shim the Ubolts with a third pipe > > The problem is that many Towers have only 2" dia members at the > 200ft > heights. Unlike a freestanding mast fastened on one side only, a 2" dia > tower member is usually strong enough for the large antenna. > > What I'd like to see is an adapter made, that will adapt the 4" design > mount > > to support 2" pole. This would be accomplished by a metal bracket that > the > 4" Ubolts would be inserted through, prior to sliding through the mount > holes. I'd have much more confidence in that, than 2 inches deep of > washers. > > Note: this is not a disadvantage of Trango, I see this problem with most > all > > large antenna mounts, designed for mission critical 4" pole mount. > Some other vendors have a hole/bracket on the mount, that allowed a cross > member from it, so a bar could be extended off to the side, to help > stablize > > it, where only 2" pole was available. > > Tom DeReggi > RapidDSL & Wireless, Inc > IntAirNet- Fixed Wireless Broadband > > > ----- Original Message ----- > From: "Brad Belton" <[EMAIL PROTECTED]> > To: "'WISPA General List'" <wireless@wispa.org> > Sent: Friday, November 28, 2008 2:03 PM > Subject: Re: [WISPA] Trango Apex > > >> "One thing I did like, the handles on the ODU of the Giga. Made aligning >> 3ft dishes a bit easier..." >> >> Wow, just noticed this comment and felt this should be addressed. >> >> The handles should not be used for alignment as the ODU is attached to >> the >> antenna - suspended with relatively light duty hardware. This hardware >> is >> only designed to support the ODU and not intended to be used to move the >> entire antenna assembly. This is also true with Ceragon, PCOM, DMC and >> Bridgewave to be sure. >> >> The PCOM 38GHz ODUs do have a sort of bump stop built-in that will make >> contact before the ODU is pivoted and eventually forced off, but still >> the >> ODU is never to be used as a handle to align with. Always use the >> built-in >> alignment mechanism in the antenna mount and never the ODU itself >> >> >> Brad >> >> >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >> Behalf Of Brad Belton >> Sent: Friday, November 28, 2008 12:42 PM >> To: 'WISPA General List' >> Subject: Re: [WISPA] Trango Apex >> >> "I don't understand why Trango did that... my really old PCom links had >> the >> waveguide built onto the dish..." >> >> One reason. Cost. Trango is able to use the same ODU housing for all >> their >> supported freq bands by simply making the waveguide adapter modular. >> >> The early Giga radios shipped the waveguide adapters with screws & lock >> washers. I was concerned this left too little screw thread available and >> opted to leave the washers off. Now the waveguide adapters come with >> screws >> and instead of the lock washer they have a rubber ring. >> >> While still leaving too little thread IMO, we have never striped one out. >> It is possible your tech tried to tighten one screw all the way down >> rather >> than tightening the screws in an equal pattern similar to the way you >> would >> tighten lug nuts on a wheel. >> >> I remember emailing Trango and recommending they have their waveguide >> manufacturer mill out a little more material from the screw seat to allow >> the screw to thread more fully into the ODU housing. Not sure if that >> has >> been done or if it is in the making. >> >> I agree the LED display is gimmicky and prefer a BNC port, but does work >> ok >> if you have the align mode on. Without the align mode the LED display is >> pretty useless. We have found it is also not a good idea to be running >> link >> or rssi commands from the console while aligning the antennas. Doing so >> will slow or diminish the accuracy of the LED readings. >> >> >> Brad >> >> >> >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >> Behalf Of 3-dB Networks >> Sent: Wednesday, November 26, 2008 7:00 AM >> To: 'WISPA General List' >> Subject: Re: [WISPA] Trango Apex >> >> One more quick rant... those waveguide pieces SUCK. They caused many >> problems (screws on them stripping out, or some tech installing them the >> wrong way before it was sent up the tower and installed so I when we went >> to >> align them it wouldn't work because the waveguide was twisted 90 >> degrees...) >> >> I don't understand why Trango did that... my really old PCom links had >> the >> waveguide built onto the dish... >> >> Daniel White >> 3-dB Networks >> >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >> Behalf Of 3-dB Networks >> Sent: Wednesday, November 26, 2008 5:43 AM >> To: 'WISPA General List' >> Subject: Re: [WISPA] Trango Apex >> >> Tom, >> >> Quick question, then my response... do all Apex's ship with the fiber >> port >> in them? >> >> I really have to bite my tounge... I don't want to get into what all >> happened (basically I don't want my thoughts made public and the customer >> I >> was working for to read them) but I was not impressed at all with the >> Trango >> Giga product... I just helped install nine links last week. All I did >> was >> install and configure the radios, so yes they said 256QAM at 3xx Meg... >> but >> I didn't get to test it with live data, etc. >> >> What I will say, the alignment LED is a gimmick. Give me a BNC connector >> hooked up to a voltmeter any day. First my voltmeter is going to read to >> decimals, which is very helpful aligning long links. Second, the LED is >> about worthless if the sun is shining on it, you have to cover it with >> your >> hands to read the numbers which was difficult on at least one link I was >> aligning. Third, positioning on some towers to align the link made >> reading >> the LED difficult. None of these issues are problems with my voltmeter, >> I >> simply just use a strip of electrical tape and tape it to the ODU where I >> want. >> >> One thing I did like, the handles on the ODU of the Giga. Made aligning >> 3ft >> dishes a bit easier... >> >> With all of that said, what is the price on the Apex now that the summer >> special is long over? Before jumping for Trango, I would encourage >> anyone >> to show me a current quote and to see if I can match it with >> Dragonwave... >> from what I understand I can come damn close :-) >> >> Daniel White >> 3-dB Networks >> >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >> Behalf Of Tom DeReggi >> Sent: Wednesday, November 26, 2008 12:38 AM >> To: WISPA General List >> Subject: [WISPA] Trango Apex >> >> Not sure how many of you have tried the new Trango Apexes yet, but I >> thought >> >> I'd share my recent experience.... >> >> OK.... 366mbps, 256QAM, Cost me much less than I was expecting. And.... >> it >> just freakin Worked! >> WooHoo! Man, I like this radio. >> >> I specificaly liked the fact that the all outdoor unit, comes with 3 >> ports, >> 1 fiber, 1 GigE, 1 out-of-band managemnet, and supports inband management >> on >> >> the GigE. >> What I thought was unique was that either of the two Ethernet ports could >> be >> >> used to provide the POE power input. And also optionally can just run >> stanrdard Electrical wire to the Molex connector instead if prefer. But >> I >> was extremely impressed at the flexibilty in options to install this. The >> alignment LED is also awesome, that is positioned in a convenient place >> and >> shows actual RSSI DB number, as it really speeds up install and made it >> possible for one person to accurately align it. >> >> Also note... The older Giga had some anoying firmware bugs last year in >> their Betas (typical of Beta), and I finally got around to upgrading to >> the >> latest firmwares. (I was 9 months overdue for the task) Guess what... All >> the problems are FIXED!! Atleast the ones I knew about. I was really >> pleased. I have to say this product line is REALLY coming along nicely. >> >> Only thing I caution to be aware of is.... It takes a while to fully >> understand the relationship of how well your link is performing in >> relation >> to what the MSE value of the radio is. MSE is the equivellent of >> measurement of SNR and distortion. And the ATPC and Adaptive Modulation >> thresholds are based on specific MSEs reached. The MSE feature/meter >> works >> good and accurately, it was just an issue of understanding how to >> interperate it. >> >> I was also impreseed on how fast they associate when they are taking out >> of >> opmode and back on in opmode. Its super quick. >> >> Tom DeReggi >> RapidDSL & Wireless, Inc >> IntAirNet- Fixed Wireless Broadband >> >> >> ----- Original Message ----- >> From: "Butch Evans" <[EMAIL PROTECTED]> >> To: "WISPA General List" <wireless@wispa.org> >> Sent: Monday, November 24, 2008 11:45 PM >> Subject: Re: [WISPA] WiMax delays? >> >> >>> On Mon, 24 Nov 2008, Travis Johnson wrote: >>> >>>>I don't think this is entirely true. For us, it becomes a "value" >>>>decision. If there was an AP that would deliver 100Mbps and could >>>>support 1000 subscribers, I would be willing to pay $10,000+ for it >>>>today. There is a real "gap" in the products that are available on >>>>the market: >>> >>> I don't disagree with your assessment of the current product matrix. >>> I don't even assume that ALL WISPs are "cheap". I am not sure I >>> would say that even MOST of them are cheap. But enough of them are >>> that the middle of the road products you want are missing in action. >>> >>>>Next = Mikrotik >>>>Next = Trango, Canopy, etc >>> >>> Since they have fixed their wireless, I'd put MT in the same class >>> as Trango and Canopy. >>> >>>>So, again, why hasn't there been an evolution of products the last >>>>2-3 years? Did everyone stop normal R&D to focus on WiMax? >>> >>> I have an opinion (which I stated in rant form) about what happened >>> to the R&D. The Canopy line (which is a very nice radio) is a good >>> example. Motorola has delivered a product that just works. It is >>> expensive compared to other products sold to the same "marketplace", >>> but it is NOT expensive for what it delivers. Better, yet, they are >>> working to make a new product line that will improve upon what is >>> available today. But their primary market isn't the "normal" WISP. >>> They service companies that are better funded, which typically means >>> larger WISPs, cable companies and telcos. >>> >>> I really hope I didn't offend anyone with my rant. It wasn't >>> intended to do that. I really just wish our industry as a whole >>> would get out of the hole that we have dug with the "cheaper is >>> better" mindframe. >>> >>> -- >>> ******************************************************************** >>> * Butch Evans * Professional Network Consultation* >>> * http://www.butchevans.com/ * Network Engineering * >>> * http://www.wispa.org/ * WISPA Board Member * >>> * http://blog.butchevans.com/ * Wired or Wireless Networks * >>> ******************************************************************** >>> >>> >>> >> > ---------------------------------------------------------------------------- >> ---- >>> WISPA Wants You! 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