so ive been going back and forth on this for like two months now and i just need someone to tell me im overthinking it. currently running a dipole up about 30 feet for 40m, its a simple center-fed job with 450 ohm ladder line into a tuner, works fine but i keep reading about verticals and how they have a lower takeoff angle which should theoretically be better for DX. my lot is pretty small, maybe 60x100 feet, so a full size 40m dipole is basically diagonal across the whole thing.

a buddy of mine keeps telling me to put up a quarter wave vertical with a decent radial field and itll blow my dipole out of the water for DX. but then i read somewhere that a dipole even at 30 feet will outperform a vertical with a mediocre radial system. my radial situation would probably be mediocre at best - i could maybe get 16 or so radials down but theyd have to be short because of the yard.

current setup is a kenwood ts-590sg into the tuner, so i can work pretty much anything impedance wise. anyway just curious what people actually experience in the real world versus what the antenna modeling software says

honestly your dipole at 30 feet is probably doing better than you think on 40m. at that height youre not totally in the weeds for DX - its not ideal but its not bad either. the low angle radiation thing with verticals is real but its also really dependent on ground quality and your radial system, like you already figured out. 16 short radials on lossy suburban ground is going to eat into that theoretical advantage fast.

i modeled something similar a few years back in EZNEC and the crossover point where the vertical started winning was when i had something like 32+ radials at a reasonable length. anything less and my dipole at even modest height was competitive or better for most paths. now if you had room for a full elevated radial system thats a different story but sounds like thats not really on the table.

that said, the vertical does give you omnidirectional coverage which is nice, you dont have to think about which way the antenna is pointing. so theres a convenience factor. but for raw DX performance with your constraints id probably stick with what youve got and maybe look at raising the dipole a few more feet if thats possible.

this is basically the question i had when i first got my hf privileges lol. i ended up just building both over a summer and doing my own comparisons. the vertical i put up was a hustler 6btv with about 20 radials, some were full length some were shorter. the dipole was up maybe 35 feet inverted-v style.

for regular stateside contacts the dipole killed it. for working europe and japan on 40m evenings the vertical seemed a little better but honestly it wasnt some massive night and day thing, more like signals that were 57 on the dipole might be 58-59 on the vertical. not enough to make or break a contact most of the time. the bigger annoyance with the vertical was RFI pickup, it heard every noise source on the property way better than the dipole did.

so yeah maybe youre overthinking it a bit