so ive been going back and forth on this for like two months now and i need someone to just tell me what to do basically. currently running a random wire out to a tree with a 9:1 unun and its fine but i want something more dedicated for 40m because thats where i spend most of my time these days.

the lot isnt huge, maybe 80 feet usable in one direction and i have a chimney on the south end of the house. i was thinking a half wave dipole fed with ladder line into a tuner but my neighbor directly to the east has a two story house and im not sure how much that kills the pattern. the other option is just throwing up a quarter wave vertical with some radials and not worrying about it.

i know the textbook answer is dipole wins if you have the space and the height, but my dipole would probably only get to about 25 feet at the apex which feels kinda low for 40. the vertical would let me work more directions without worrying about the pattern being squished by surrounding structures. anyway if anyone has actually compared these in a suburban backyard situation id love to hear real world impressions not just antenna modeling theory

25 feet on 40m is definitely low, youre basically looking at a cloud warmer at that height, good for regional stuff but not gonna do much for dx. that said a dipole even at low heights still outperforms a compromised vertical in my experience and nearly every vertical in a suburban lot is compromised because of the radial situation. if you can only lay 4 or 5 radials youre leaving a lot of signal on the table.

the ladder line idea is solid though, run it into a good balanced tuner and you can work other bands with it too which gives you some flexibility. i had a similar setup a few years back with a 40m dipole at about 30 feet and it worked pretty well for most of the midwest and up into canada on a good evening. not a dx machine but respectable. what direction are you mostly trying to work?

honestly i went through almost the exact same decision and ended up going vertical, partly because my yard just doesnt give me clean dipole angles in any useful direction. ended up with a trap vertical that covers 40 and 20 and threw down like 16 radials at about 10 feet each which i know isnt ideal but its what i had room for. works okay, not amazing. 40m ssb contacts up to maybe 800 miles on a typical afternoon, nothing crazy but it gets out.

one thing i wish id done differently is spend more time on the feedpoint and make sure everything was weatherproofed right from the start, had some intermittent issues last winter that turned out to be water intrusion at the coax connector and it took me forever to track down