Re: [Repeater-Builder] Best broadband VHF antenna
Sinclair 210C4 speced at 138-174<1.5:1 They are the standard antenna used in multicoupled systems here in Canada. I have seen one with as many as 28 frequencies coupled into it. Burt VE2BMQ>> [EMAIL PROTECTED] wrote: > > Have a question for the list. Is there an antenna (VHF) that will cover a > 30mhz bandwith? (Reasonably) > > There is a system in Georgia incompassing the entire state using various tall > towers. On the towers will be antennas that will be used for VHF Repeaters > and VHF digital. (in the ham band) T > > he NWS is hoping to use the same antennas on a "Mesonet". (like this one > http://www.mesonet.ou.edu/) They are looking at the government freq.s right > now but thinks there may be something in the 175mhz band. > > > Will this work? I suggested the db224, but I see it's bandwith is only > 10mhz. I do realize these will work out of band pretty well (using a db224 > for a remote base antenna and a db420 on a repeater now)...but just wasn't > sure if there was a better choice. > > Thanks, > Robert Burton > DEC NWS in Peachtree City,GA > www.georgiaskywarn.com > > > > > > > > Yahoo! Groups Links > > > > > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] Best broadband VHF antenna
> Have a question for the list. Is there an antenna (VHF) that > will cover a 30mhz bandwith? (Reasonably) > > There is a system in Georgia incompassing the entire state > using various tall towers. On the towers will be antennas > that will be used for VHF Repeaters and VHF digital. (in the > ham band) T > > he NWS is hoping to use the same antennas on a "Mesonet". > (like this one http://www.mesonet.ou.edu/) They are looking > at the government freq.s right now but thinks there may be > something in the 175mhz band. Sinclair wideband dipole arrays are probably our best bet (SD214-HL as an example). They cover 138-174 MHz, available with either 1/4 wave or 1/2 wave spacing from element to mast (go with half-wave if you want to get close to omni, quarter-wave for a more unidirectional pattern). Built like a tank. Telewave also has broadband dipole arrays, but personally I like Sinclair's construction better. --- Jeff -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 268.0.0/267 - Release Date: 2/22/2006 Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
