Jim, The place I've seen some get the pole is from another DB224 that was bad. I think maybe 2" conduent would work, but not sure about this being able to take the weather. Might paint.
The DB224 is rather light for the size, but is rugged. Others have mounted the elements to a tower leg. This can work, but if going on very high tower where legs are say 4" mounting might be a problem. Also must install correctly; get the spacing vert correct. 73, ron, n9ee/r >From: Jim Cicirello <[EMAIL PROTECTED]> >Date: 2008/06/24 Tue PM 12:36:55 EDT >To: [email protected] >Subject: RE: Re: [Repeater-Builder] Reasonably low wind load antenna > > >Ron, > >Thanks for the mounting information. Ialso lack the DB224 Mast that the four >dipoles mount on. From my research theoriginal is two pieces about twelve feet >long that I believe bolt together, thediameter I have not been able to find. >From the ones I have seen the mountingpole is quite robust. Do you have any >pole stock that you could recommend thatwould hold the DB224 on a side mount >configuration? As I recall although themast was very rigid, it was quite >lightweight. > >Thanks JIM KA2AJH > > > > > >From: [EMAIL PROTECTED]:[EMAIL PROTECTED] OnBehalf Of Ron Wright >Sent: Tuesday, June 24, 2008 12:23PM >To:[email protected] >Subject: Re: Re:[Repeater-Builder] Reasonably low wind load antenna > >Jim, > >The DB224 is usually supplied with 2 clamps where each clamp attaches to >theDB224 mast and the other side clamps to the tower/mounting pipe. I >believethese are made for 2-1/2" pipe. > >At www.tessco.com you can see pictures of these clamps and also purchase >themalthough they are not cheap. They are very rugged galvanized clamps >with3/8-1/2" bolts 8" or so long and nuts. > >I would recommend looking on e-bay or someone here that might have them. > >Another mount is side mounts. For DB224 18" off the tower is typical.These >have V shaped pieces one at each end of 2 pipes. The V is clamped to thetower >and the other end the DB224 is clamped. You really need 2 mounts forthis, one >at the bottom and one near the top. Usually the top mount is a singlepipe with >C/U clamps to keep the antenna from swaying and the bottom holds theantenna >weight. > >The DB 224 can be top mounted without the fear of the swaying in the >winddamaging it unlike fiberglass antennas. I like putting top and bottom >mountswhen one can, but if top mounted not done for obvious reasons (there is >no top,hi). > >73,ron, n9ee/r > >>From: Jim Cicirello <[EMAIL PROTECTED]> >>Date: 2008/06/24 Tue AM 11:11:02 EDT >>To: [email protected] >>Subject: Re: [Repeater-Builder] Reasonably low wind load antenna > >> >>Hi Ron Another Question Please: I was fortunate enough to buy a goodDB224 >>without the support mast. After following the opinions on wind loading,etc. I >>am wondering what can be used for a support mast and where the mastingmight >>be purchased? Any ideas? Thanks JIM KA2AJH -----Original Message ----- >>From: Ron Wright To: [EMAIL PROTECTED]: Tuesday, June 24, 2008 7:47 AM >>Subject: Re: [Repeater-Builder] Reasonablylow wind load antenna >> >>Tony, >> >>First the Ringo-Ranger does not have the 7 dbi gain. To think a smaller 12ft >>antenna would have about the same gain as one the size of a 4 bay dipole >>isnot realistic. One note of info...antenna manufactures, especially from >>Japan, lie allthe time. I would not use such harsh words except after years >>of this junksomething needs to be said. I is said here on this board all the >>time for manyknow antenna performance here, hi. >> >>Your wind loading limits will require a smaller, lower gain antenna. If iceis >>a problem the Ringo-Ranger will probably not last that long. >> >>I would recommend going to www.tessco.com, a distributor of 2-way gear, >>andcheck thru their antenna section. They have a number of finnne >>manufactureswith their specs. >> >>73, ron, n9ee/r >> >>>From: Tony VE6MVP <[EMAIL PROTECTED]> >>>Date: 2008/06/23 Mon PM 10:28:11 EDT >>>To: [email protected] >>>Subject: [Repeater-Builder] Reasonably low wind load antenna >> >>> >>>Folks >>> >>>We're moving a VHF amateur repeater to a 96' Trylon selfsupportingtower. >>>The overwhelming opinion is that our current 210C4 fourbayfolded dipole >>>would be too much of a weight and wind load for thattower. >>> >>>One comment has been the Ringo Ranger. The wind load oftheCushcraft Ringo >>>Ranger II >>>ARX2Bhttp://cushcraft.com/comm/support/pdf/RINGOS%20AR2%206%2010%20ARX450%20220B%202B.pdfis0.5 >>> square feet. The windload of the Sinclar SD214 >>>http://www.sinclairtechnologies.com/catalog/resources/pdf/SD214-HF2P3LDF(D00S-LSABK)-DI.pdf(newer >>> model to 210C4) is 5.57 square feet. Although the ice area is17.04 sq ft. >>>The SD214 has a dbd gain of 7.2, dbi of 9.3. TheRingo Ranger has dbi gain >>>of 7.0. However the coverage plot in ruralslightly hilly Albertaisn't all >>>that much different. >>> >>>What would be suggestions for an alternative? Comments? >>> >>>Thanks, Tony >>>(rapidly learning lots about towers and repeaters) >> >>Ron Wright, N9EE >>727-376-6575 >>MICRO COMPUTER CONCEPTS >>Owner 146.64 repeater Tampa Bay, FL >>No tone, all are welcome. >> >> > >Ron Wright, N9EE >727-376-6575 >MICRO COMPUTER CONCEPTS >Owner 146.64 repeater Tampa Bay, FL >No tone, all are welcome. > > Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
