[Repeater-Builder] Re: Repeater Antenna Choice

2007-11-27 Thread skipp025
@yahoogroups.com Sent: Monday, November 26, 2007 11:31 AM Subject: Re: [Repeater-Builder] Re: Repeater Antenna Choice The area served by many of our radio sites (we are in Central Utah), sit at approximately a 12 degree downtilt from the sites. Most of these sites are at 3000-4000' AGL. In some

[Repeater-Builder] Re: Repeater Antenna Choice

2007-11-26 Thread Laryn Lohman
I've not seen overshoot from relatively low AGL sites either. Maybe someone could bring up some examples of this happening, with details? Laryn K8TVZ --- In Repeater-Builder@yahoogroups.com, Nate Duehr [EMAIL PROTECTED] wrote: Agreed. I think what I was trying to say was there were a

Re: [Repeater-Builder] Re: Repeater Antenna Choice

2007-11-26 Thread Keith, KB7M
The area served by many of our radio sites (we are in Central Utah), sit at approximately a 12 degree downtilt from the sites. Most of these sites are at 3000-4000' AGL. In some cases, we have opted for lower gain antennas to cover close in areas better. We designate repeaters as local or wide

[Repeater-Builder] Re: Repeater Antenna Choice

2007-11-26 Thread skipp025
Simple... The largest Decibel, Sinclair, Telewave or similar folded dipole style antenna you can manage to put in the air. Antennas are probably the only part of the free lunch rule... when applied to radio system coverage. There are two types... the standard folded dipole

Re: [Repeater-Builder] Re: Repeater Antenna Choice

2007-11-26 Thread Chuck Kelsey
-Builder] Re: Repeater Antenna Choice The area served by many of our radio sites (we are in Central Utah), sit at approximately a 12 degree downtilt from the sites. Most of these sites are at 3000-4000' AGL. In some cases, we have opted for lower gain antennas to cover close in areas better. We

[Repeater-Builder] Re: Repeater Antenna Choice

2007-11-26 Thread Laryn Lohman
Chuck, how far vertically above the portables would that 420-style antenna have been, considering the hills in the area, etc. Laryn K8TVZ --- In Repeater-Builder@yahoogroups.com, Chuck Kelsey [EMAIL PROTECTED] wrote: We had a DB-420 style antenna (actually it was made by Signals, but it was

Re: [Repeater-Builder] Re: Repeater Antenna Choice

2007-11-26 Thread Chuck Kelsey
About 275 - 280 feet. Chuck - Original Message - From: Laryn Lohman [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, November 26, 2007 10:39 PM Subject: [Repeater-Builder] Re: Repeater Antenna Choice Chuck, how far vertically above the portables would that 420

Re: RE: [Repeater-Builder] Re: Repeater Antenna Choice

2007-11-25 Thread Ron Wright
From: gervais fillion [EMAIL PROTECTED] Date: 2007/11/24 Sat AM 08:06:27 CST To: repeater-builder@yahoogroups.com Subject: RE: [Repeater-Builder] Re: Repeater Antenna Choice Hi all we have been using here Sinclair SRL-210 a4 for many years ,they are well built,4 dipoles

[Repeater-Builder] Re: Repeater Antenna Choice

2007-11-25 Thread Laryn Lohman
--- In Repeater-Builder@yahoogroups.com, Nate Duehr [EMAIL PROTECTED] wrote: I don't think the comments about where you want to put your signal apply as much as some folks would have you believe. Even though the 408 pushes more gain to the horizon, it still is rated for something like

Re: [Repeater-Builder] Re: Repeater Antenna Choice

2007-11-25 Thread Nate Duehr
On Nov 25, 2007, at 8:19 PM, Laryn Lohman wrote: Hi Larry, yeah... reading back through it I transposed 408 and 420. Nate, perhaps you could clarify that paragraph... Anyway, I was just comparing published vertical beamwidth numbers for various bands/manufacturers/gains. Within a degree or

[Repeater-Builder] Re: Repeater Antenna Choice

2007-11-24 Thread Paul R. Dumdie Jr
Derek, Going to the higher gain antenna may cause shadowing in some areas close in to the repeater site if its up real high. I also like the DB-408 antennas and am using them on my systems. The fiberglass antennas are OK also, But if they take a lightning hit they are gone. I had an ASP copy

RE: [Repeater-Builder] Re: Repeater Antenna Choice

2007-11-24 Thread gervais fillion
Hi all we have been using here Sinclair SRL-210 a4 for many years ,they are well built,4 dipoles . they have been cloned by many telecom compagny as Comprod too we have tested Fiberglass antenna,after a time the coating of the fibreglass dissapear and the fiber of the fiberglass broke due to