Re: [Repeater-Builder] antenna plan
I didn't answer because I didn't have a good one. I think what you were going to try has a high likelihood of not working well. You didn't saw what band, as I recall. I'd stick with a single antenna. Chuck WB2EDV - Original Message - From: Paul Holm To: Repeater-Builder@yahoogroups.com Sent: Thursday, August 19, 2010 10:25 PM Subject: Re: [Repeater-Builder] antenna plan Hopefully it is not uncool to be the first to respond to one's own post. I'll take the fact that there was no flood of flames, or naysayers, to indicate that my plan is worth attempting. So as a follow-up question, I would ask, could anyone offer recommendations for a yagi, corner reflector, or other directional antenna, suitable for duplex use, with a beamwidth of no less than 30deg and a gain of no less than say 7dB? 73 Paul - Original Message - From: Paul Holm I'm looking for input on an antenna plan. I'd like to change to an ellliptical pattern that favors the bigger town in the county which is roughly at 270 deg west and about 6 miles away. I'd like to take a yagi or corner reflector and mount it lower, at the railing or a short distance up the mast, and point it at the town I'd like to focus on -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.851 / Virus Database: 271.1.1/3082 - Release Date: 08/19/10 14:35:00
Re: [Repeater-Builder] antenna plan
Sorry. VHF. - Original Message - From: Chuck Kelsey I didn't answer because I didn't have a good one. I think what you were going to try has a high likelihood of not working well. You didn't saw what band, as I recall. I'd stick with a single antenna. Chuck WB2EDV
Re: [Repeater-Builder] antenna plan
Then I'd take a DB-224 antenna and point the elements toward your desired areas. If you split and mount another antenna elsewhere, you are going to create a highly unpredictable pattern with two different radiation centers, creating multipath possibilities. At least that's my take. Chuck WB2EDV - Original Message - From: Paul Holm To: Repeater-Builder@yahoogroups.com Sent: Friday, August 20, 2010 9:04 AM Subject: Re: [Repeater-Builder] antenna plan Sorry. VHF. - Original Message - From: Chuck Kelsey I didn't answer because I didn't have a good one. I think what you were going to try has a high likelihood of not working well. You didn't saw what band, as I recall. I'd stick with a single antenna. Chuck WB2EDV -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.851 / Virus Database: 271.1.1/3083 - Release Date: 08/20/10 02:35:00
Re: [Repeater-Builder] antenna plan
Your omni + yagi configuration will work. It has been used in the land mobile field for many years, but not very often. You get a keyhole shaped pattern. Phasing shouldn't be a big issue but feel free to play with cable lengths. Use a decent power divider as well. Bill KB1MGH From: Paul Holm p...@chargertech.com To: Repeater-Builder@yahoogroups.com Sent: Fri, August 20, 2010 8:04:48 AM Subject: Re: [Repeater-Builder] antenna plan Sorry. VHF. - Original Message - From: Chuck Kelsey I didn't answer because I didn't have a good one. I think what you were going to try has a high likelihood of not working well. You didn't saw what band, as I recall. I'd stick with a single antenna. Chuck WB2EDV
Re: [Repeater-Builder] antenna plan
Hopefully it is not uncool to be the first to respond to one's own post. I'll take the fact that there was no flood of flames, or naysayers, to indicate that my plan is worth attempting. So as a follow-up question, I would ask, could anyone offer recommendations for a yagi, corner reflector, or other directional antenna, suitable for duplex use, with a beamwidth of no less than 30deg and a gain of no less than say 7dB? 73 Paul - Original Message - From: Paul Holm I'm looking for input on an antenna plan. I'd like to change to an ellliptical pattern that favors the bigger town in the county which is roughly at 270 deg west and about 6 miles away. I'd like to take a yagi or corner reflector and mount it lower, at the railing or a short distance up the mast, and point it at the town I'd like to focus on
Re: [Repeater-Builder] antenna plan
I had a corner reflector on my very first UHF ham repeater for a while. No problems with duplex operation or anything. The pattern was pretty much as you see in the catalogs. The front to back ratio was remarkable. After a while, I got some more money and changed it out. Best Regards, W1EL Eric Lowell Eastern Maine Electronics Inc. 48 Loon Road Wesley ME 04686 eme@starband.net www.satnetmaine.com 207-210-7469 From: Paul Holm p...@chargertech.com To: Repeater-Builder@yahoogroups.com Sent: Thu, August 19, 2010 10:25:51 PM Subject: Re: [Repeater-Builder] antenna plan Hopefully it is not uncool to be the first to respond to one's own post. I'll take the fact that there was no flood of flames, or naysayers, to indicate that my plan is worth attempting. So as a follow-up question, I would ask, could anyone offer recommendations for a yagi, corner reflector, or other directional antenna, suitable for duplex use, with a beamwidth of no less than 30deg and a gain of no less than say 7dB? 73 Paul - Original Message - From: Paul Holm I'm looking for input on an antenna plan. I'd like to change to an ellliptical pattern that favors the bigger town in the county which is roughly at 270 deg west and about 6 miles away. I'd like to take a yagi or corner reflector and mount it lower, at the railing or a short distance up the mast, and point it at the town I'd like to focus on I
