In the late 60's W4BVV put a full size 3 el 40m yagi on a 70 foot boom up 150 feet. This would qualify as a passive front end. Pointed at Europe, at the shack end of coax, peak to peak RF on a scope would measure five to ten volts when the band was open.
What will today's direct samplers do with 10 volts RF in band on the antenna terminal? 73, Guy K2AV On Wednesday, September 16, 2015, Rick Stealey <[email protected]> wrote: > Barry says: > >During the past 3 years, I've worked one CQWW and one ARRLDX > > contest from the Northeast with a SteppIR yagi feeding an ANAN-100D with > > 0dB attenuation and never experienced overload during the weekends. > > And Joe presented a very useful tabulation showing how signals combine. > One thing that we should keep in mind is that single band antennas like > Steppirs, single band dipoles, etc. greatly attenuate out of band signals. > And from Joe's data look what a difference 10-20 db can make. This might > be a good case against 80/40 fan dipoles and trap tribanders. > Rick K2XT > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] <javascript:;> > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] <javascript:;> > -- Sent via Gmail Mobile on my iPhone ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
