Question on the use of amps...blah blah blah I live in extreme south east Iowa.....anyway....when I tried to check in to the Iowa 75 meter net, often times I could not hear the Net Control Station on 3.970 over the signal coming out of Kalamazoo, Michigan on his frequency of 3.967.5. Enough said. Although, I have decided to peruse other frequencies/modes....this ain't right to hear someone hundreds of miles away...during an established net. A net that has been on longer than the station in the other state....I think, I could be wrong there....(covering all bases). I cannot say what the station runs for equipment, just what he has stated....a homebrew 3 element wire beam for 75 meter phone, a Commander amp (3 tube), and an Icom IC775 ( at one time). Often times, he "points" his beam to the west....so he can get into the "S-meter.net" internet receiver. I think mostly it's because I am in the path of his beam, that I hear his strong signals....being basically new to ham radio, you know....only had my license for 14 years or so. I used to be a "CB splatterer" also...so I know where these folks are "coming from". But....one mile or less....you will no doubt hear the other station no matter where you listen within the band you and he share....Simple steps....like the other posts....check your equipment, or change polarity of your receive antenna, or even change altitude of said antenna....Anyway...I'm outta here! Peace....and good luck sorting this out.