I have been using the same antennas and a metal boom since 1992. Also do the same at field day every year. If it doesn't work please don't tell me now. I have been to happy with the setup to wont to change.
73's << John On Sat, Jul 25, 2009 at 4:47 PM, Kevin Groth<[email protected]> wrote: > I have just finished building a set of 2m and 440mhz circular polarized > beams to work the birds. (tired of standing in the heat and cold outside!) > I tried to save a little bit of money by building a wood dowel inserted into > a sched 40 uv resistant pipe. I hung the beams on either side of the cross > boom and it sags way too much and is ugly. I thought about using some > eyebolts and some nylon cording for support to the vertical mast, but I'm > trying to keep everything as clean as possible for the neighbors. I would > really rather not have to purchase a fiberglass satellite boom commercially, > but if I have to, I will. > > > > I have a bunch of 1.75" aluminum pipe that would be more than able to > support most anything I plan to add to the antenna collection in the future > (1.2 and 2.4 ghz). My question is how much of a difference would it make if > I mounted the 2m and 440 beams in an X position to the aluminum beam? I > have read some short answers that it would minimize the swr issue, but > haven't really found an answer that I am comfortable with. Also, how would > that effect a later addition like a 1.2 or 2.4 ghz antenna.? My current > antennas are a KLM 2m-14c and a 435-40cx, both circular polarized and > switchable RH and LH polarization. Does anyone have any experience with a > metal crossboom? > > > > Thanks! > > Kevin > > N9EME > > Fort Worth, TX > > _______________________________________________ > Sent via [email protected]. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > -- N4QWF Amateur Radio Operator AO-7,AO-27,FO-29,SO-50,AO-51,VO-52,ISS Email [email protected] Echolink nodes #110903 -L #388463 http://home.comcast.net/~n4qwf/site/ Formerly KC4AHW VK3FEZ Amsat Member #27845 DXCC #33,478 VUCC SAT #135 WAS SAT #296 51 on AO-51 #13 LON -79.256 LAT 37.459 Grid FM07il >From the Foothills of the Blueridge *Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming - "WOW, What a ride!" _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
