RE: [Repeater-Builder] Re: 1.2 GHz Base antennas
No problem - I was merely offering options/suggestions. I understand your desire to have a folded dipole! Good luck! 73 de Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of n3dab Mark - To keep from repeating my self i'll refer you to my response to John's reply. I appreciate your reply but your references were for Yagi's and colinear antennas and not applicable to what i had in mind of building, though the colinear antenna may be a fallback. If Chuck Kelsey is amongst the readers of this post maybe he has some additional info on the 1.2 GHz dimensions i'm looking for. Thanks again for your input.
Re: [Repeater-Builder] Re: 1.2 GHz Base antennas
Sorry, I am of no help. I've never seen a folded dipole array for that band. Not sure if anyone ever made one. My article was cloning a Signals brand antenna with lengths changed to cover the ham band. Chuck WB2EDV - Original Message - From: n3dab rb_n3...@tds.net To: Repeater-Builder@yahoogroups.com Sent: Wednesday, August 26, 2009 2:17 PM Subject: [Repeater-Builder] Re: 1.2 GHz Base antennas Mark - To keep from repeating my self i'll refer you to my response to John's reply. I appreciate your reply but your references were for Yagi's and colinear antennas and not applicable to what i had in mind of building, though the colinear antenna may be a fallback. If Chuck Kelsey is amongst the readers of this post maybe he has some additional info on the 1.2 GHz dimensions i'm looking for. Thanks again for your input. --- In Repeater-Builder@yahoogroups.com, Mark n9...@... wrote: Doug, Check out the articles on the companion website: http://www.repeater-builder.com/antenna/pdf/wr9aea-antenna-n9sn-hr09-79.pdf http://www.repeater-builder.com/antenna/wa6svt.html and the master page: http://www.repeater-builder.com/antenna/ant-sys-index.html#antennas A real treasure trove of information! 73 de Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of n3dab Sent: Wednesday, August 26, 2009 11:14 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] 1.2 GHz Base antennas I'm looking for any information and/or construction details for a hi-gain folded dipole omni-directional antenna in the 1.2 GHz Amateur band (similar to the VHF design shown in the ARRL Handbook or the DB products line) for use as a base or repeater antenna. I would like to build the folded dipole type, but am not to familiar with the way to compute the dipole dimensions, stand off from the mast and vertical spacing of the dipole loops. If someone has already built one successfully, I would appreciate them contacting me of list at de underscore n3dab @ tds dot net (no spaces) if they are willing to share their knowledge. Yahoo! Groups Links No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.67/2326 - Release Date: 08/25/09 18:07:00 Yahoo! Groups Links
Re: [Repeater-Builder] Re: 1.2 GHz Base antennas
It might load OK, but who knows what kind of pattern you might end up with. Chuck WB2EDV - Original Message - From: n3dab rb_n3...@tds.net To: Repeater-Builder@yahoogroups.com Sent: Wednesday, August 26, 2009 7:08 PM Subject: [Repeater-Builder] Re: 1.2 GHz Base antennas OK. Thanks anyway. Just thought there might be some experimentors out there in RF land. Do you think a 420-430 antenna work on the 3rd hanmonic, similar to using a 2 mtr. antenna with a 440 transmitter, as I have seen mentioned here on occaision There isn't a lot out there in base/rptr. antennas in the Amateur or commercial market for 1.2 GHz. unless it is special order. --- In Repeater-Builder@yahoogroups.com, Chuck Kelsey wb2...@... wrote: Sorry, I am of no help. I've never seen a folded dipole array for that band. Not sure if anyone ever made one. My article was cloning a Signals brand antenna with lengths changed to cover the ham band. Chuck WB2EDV - Original Message - From: n3dab rb_n3...@... To: Repeater-Builder@yahoogroups.com Sent: Wednesday, August 26, 2009 2:17 PM Subject: [Repeater-Builder] Re: 1.2 GHz Base antennas Mark - To keep from repeating my self i'll refer you to my response to John's reply. I appreciate your reply but your references were for Yagi's and colinear antennas and not applicable to what i had in mind of building, though the colinear antenna may be a fallback. If Chuck Kelsey is amongst the readers of this post maybe he has some additional info on the 1.2 GHz dimensions i'm looking for. Thanks again for your input. --- In Repeater-Builder@yahoogroups.com, Mark n9wys@ wrote: Doug, Check out the articles on the companion website: http://www.repeater-builder.com/antenna/pdf/wr9aea-antenna-n9sn-hr09-79.pdf http://www.repeater-builder.com/antenna/wa6svt.html and the master page: http://www.repeater-builder.com/antenna/ant-sys-index.html#antennas A real treasure trove of information! 73 de Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of n3dab Sent: Wednesday, August 26, 2009 11:14 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] 1.2 GHz Base antennas I'm looking for any information and/or construction details for a hi-gain folded dipole omni-directional antenna in the 1.2 GHz Amateur band (similar to the VHF design shown in the ARRL Handbook or the DB products line) for use as a base or repeater antenna. I would like to build the folded dipole type, but am not to familiar with the way to compute the dipole dimensions, stand off from the mast and vertical spacing of the dipole loops. If someone has already built one successfully, I would appreciate them contacting me of list at de underscore n3dab @ tds dot net (no spaces) if they are willing to share their knowledge. Yahoo! Groups Links No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.67/2326 - Release Date: 08/25/09 18:07:00 Yahoo! Groups Links Yahoo! Groups Links
RE: [Repeater-Builder] Re: 1.2 GHz Base antennas
OK. Thanks anyway. Just thought there might be some experimentors out there in RF land. Do you think a 420-430 antenna work on the 3rd hanmonic, similar to using a 2 mtr. antenna with a 440 transmitter, as I have seen mentioned here on occaision There isn't a lot out there in base/rptr. antennas in the Amateur or commercial market for 1.2 GHz. unless it is special order. We just delivered a Hustler Spirit series 1.2 GHz 10 dBd stick to a customer. Seemed to be built pretty well, no comments back yet regarding performance (it replaced a Comet GP-21). Lead time was about 4 weeks. --- Jeff WN3A
