Total posts : 45366
RE: Reply #107
The designer of the mathching curcuit designed it to match 3 meter antennas and nothing more. I have that on personal knowledge.
How is it, then, that the KENC transmitter reportedly was able to be matched into a ~ 3-meter antenna when “grounded” to the top of a 40-ft tower at KENC, when that feedpoint impedance would be much different than that of a ~ 3-meter whip, alone?
Why not buy one and and DIY rather than use free softeware and share your real time experiences?
I paid $400 for the NEC4 software I use.
Just to note that I have real-time, hands-on experience with AM/FM transmit/receive systems going back to the mid-1950s.
Modern software analysis of antenna systems confirms the information given in antenna engineering textbooks, and is accepted by the FCC to license AM broadcast stations.
Why not acquire, and learn how to use such software before judging its accuracy and/or usefulness?