RE: [Repeater-Builder] Antenna separation question
That's exactly what I'm doing. VHF GE mastrII at 100 watts goes through 2 8" Sinclair pass cavities set at .5db gives 80 watts to the antenna. 4 bay exposed dipole at 75' The receiver and preamp goes through only one 8" Wacom also set at .5db then up to the collinear receive antenna at 100' Very very little desense almost undetectable. Also with the pass cavity on the receiver side preamps seem to be much more usable and effective in the real world. This machine hears very very well! More can be seen from my website. www.kc7rjk.net <http://www.kc7rjk.net/> ~Ross -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of kc0mlt Sent: Tuesday, June 01, 2010 10:28 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Antenna separation question Ok just kicking this idea around the other day and the question came up about antenna separation. I know the basic 2 meter antenna separation is 50ft. (I am thinking 60ft to be safe) But is it possible to get them closer if I place some cavities on either the receive or transmit sides. Sounds dumb from some certian points of view, but I am waiting on the arrival of a decent duplexer (could be some time out though)so in the mean time I would like to get this up and going with a split antenna system for now. I was thinking maybe a 30ft separation... Would this idea work? If so does it need to be modified from what I was thinking?
Re: [Repeater-Builder] Antenna separation question
Certainly it will work as it is done all the time. Isolation is isolation - if you have enough, it doesn't matter how you got it. Chuck WB2EDV - Original Message - From: "kc0mlt" To: Sent: Tuesday, June 01, 2010 1:27 PM Subject: [Repeater-Builder] Antenna separation question > Ok just kicking this idea around the other day and the question came up > about antenna separation. I know the basic 2 meter antenna separation is > 50ft. (I am thinking 60ft to be safe) But is it possible to get them > closer if I place some cavities on either the receive or transmit sides. > Sounds dumb from some certian points of view, but I am waiting on the > arrival of a decent duplexer (could be some time out though)so in the mean > time I would like to get this up and going with a split antenna system for > now. I was thinking maybe a 30ft separation... Would this idea work? If so > does it need to be modified from what I was thinking? > > > > > > > > Yahoo! Groups Links > > > No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.819 / Virus Database: 271.1.1/2910 - Release Date: 06/01/10 02:25:00
[Repeater-Builder] Antenna separation question
Ok just kicking this idea around the other day and the question came up about antenna separation. I know the basic 2 meter antenna separation is 50ft. (I am thinking 60ft to be safe) But is it possible to get them closer if I place some cavities on either the receive or transmit sides. Sounds dumb from some certian points of view, but I am waiting on the arrival of a decent duplexer (could be some time out though)so in the mean time I would like to get this up and going with a split antenna system for now. I was thinking maybe a 30ft separation... Would this idea work? If so does it need to be modified from what I was thinking?
