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On 11/15/2014 6:17 PM, FBMboomer wrote:
On 11/14/2014 8:36 AM, Jerry Stuckle wrote: On 11/13/2014 6:12 PM, wrote: FBMboomer wrote: On 11/12/2014 1:50 PM, gareth wrote: It is a truism that short antennae are poor inefficient radiators, and no amount of infantile bluster by Americanoramuses will change that. The truth does not need the violence of abuse to force its way down people's throats. A perfect example is a G5RV on 75 meters. They suck. When someone joins our group rag chew on 75, and they have a poor signal, The first thing I ask is "Are you using a G5RV". We all have a chuckle when they answer yes and then ask how we knew. :-) False logic. You don't know how many people with good signals are using G5RV's, because you only ask those with poor signals. Trying to prove with math that short antennae work as well as say a 1/2 wave dipole may give someone great sport. However, in the real world, short antennae suck big time. I have been an American for most of my life. Please do not paint us all with the same brush. Yes and no. Depending on their design, short antennas can be very efficient. See http://www.futurity.org/radio-wave-c...phones-801322/ for an example. But others are correct. The antenna itself is an efficient radiator; it's the matching network that lowers *antenna system* efficiency. Any dipole type antenna will suck on 75M if mounted less than about 100 feet, or about .4 wavelengths. Below that you are warming clouds. So now it's 100 feet? It used to be 60 feet. But I have proof that is not the case. So do a lot of other hams I know. Your "facts" are for an idealized installation. Reality is much different, and will never get the ideal specifications you claim. snip I strongly encourage you to use a "loaded" 1 foot long dipole on 75 meters. This will prove you are right and we can all listen to the proof. :-) I suggest you stop trolling. You obviously have too much time on your hands (and too little brains to do anything productive). No wonder you wish to remain anonymous. -- ================== Remove the "x" from my email address Jerry, AI0K ================== |