Hi, I know nothing about BC transmitters and antennas but in our world of amateur radio solid state transmitters it is imperative that the transmission line presents a load close to 50 ohms resistive to the transmitter. The transmitter doesn't care how this is accomplished as long as it sees a good match to 50 ohms. The simplest, of course, it to have a resonant antenna (close to 50 ohms resistive - resonance is no guarantee of a 50 ohm load) and a good low loss 50 ohm coax transmission line. If the antenna is far from 50 ohm resistive, a tuner (more correctly called a matching network) is required somewhere between the antenna and the transmitter. If the actual loss of the transmission line under the mismatched condition is not too high, it's perfectly OK to have the tuner close to the transmitter. If these conditions are not satisfied, the tuner is best located close to the antenna feed point with the extra cost and effort that involves.
AB2TC - Knut W2xj wrote > You can get an AT-615B from Array Solutions now and do this. I put 10 in a > club station for our various wire arrays. They do everything you need. > > BTW I disagree about this 50 Ohm antenna thing. In my world of commercial > high powered broadcasting 30 MHz and under, there are almost never > resonant, matched 50 ohm arrays. > > Sent from my iPad > >> On Apr 19, 2020, at 8:41 AM, Richard Thorne < > rthorne@ > > wrote: >> > <snip> -- Sent from: http://elecraft.365791.n2.nabble.com/ ______________________________________________________________ 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]
