While the G5RV has a lot of advocates for multiband use, it works much better if you bring the parallel feedline all the way to the tuner. When used for multiband, with coax and the matching section, you will likely find a higher than desirable SWR on the coax except on 20 meters. I have found the claims for the G5RV antenna to be highly exaggerated. For good unbiased information on the G5RV (or most any other antenna for that matter) check out the wealth of information gained by modeling at L B Cebik's website www.cebik.com.
Your multi-dipole will be more efficient on 80 meters, and can be fed directly with coax and no tuner. If I were in your shoes, I would leave well enough alone unless there is some other overriding reason to change it. 73, Don W3FPR > -----Original Message----- > > > Hi Guys, my main rig is a K1 feeding a multi dipole for 80/40/20 with no > ATU. I am thinking of taking down the dipoles and trying a full size G5RV. > Questions: > > Will the KAT1 ATU tune up on all bands from 80-15m > > I will be using about 80 feet of 50ohm coax to get from the matching > section to the rig, am I going to get big losses in the coax due to the > high SWR on most bands? The beauty of the G5RV is that it can be fed > with coax but with only 5W I don't want to waste all the power in the > feeder. > > I intend to build the G5RV myself (like all of my antennas), how > accurate does the length of the matching section have to be? does it > need tuning in some way. Can I use any insulated wire for the open wire > section? > > > The multi dipoles have been great performers but it's a lot of wire up > there and very heavy, I thought that with the G5RV being one single top > wire it will be lighter and I may be able to get it higher. > > Any thoughts would be appreciated. > > -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.6/111 - Release Date: 9/23/2005 _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
