so ive been going back and forth on this for probably two months now and i need someone to just tell me what to do honestly. i have a decent sized backyard, maybe 80 feet usable in one direction but not much else, trees on two sides. right now im running a trapped vertical that came with the house basically, previous owner left it bolted to the fence post and it gets out ok but the noise floor on receive is absolutely terrible. like S5-6 on 40 at night.

a buddy of mine keeps telling me to just put up a dipole, says the low angle radiation on the vertical is worth it for dx but i mean im not really chasing dx that hard, mostly ragchew and some local nets. he also said something about the vertical needing a better radial system which i never really got around to doing properly, theres maybe 4 radials under it right now.

anyway the question is basically — is the noise difference between a dipole and a vertical actually that noticeable or is he just a dipole guy and kinda biased toward them. and if i do the dipole, inverted V probably given the space, does 80 feet of backyard give me enough for 40m half wave

your buddy isnt wrong but hes not telling you the whole story either. verticals pick up a lot of local noise because theyre omnidirectional and close to the ground, and 4 radials is basically nothing — you really want 16 minimum and even then youre leaving performance on the table. with a proper radial field the noise thing gets a little better but not dramatically.

for what you're describing — ragchew, nets, not hardcore dx — an inverted V is honestly going to make you happier. 80 feet is plenty, a 40m half wave is about 66 feet so you have room to spare even with the slopes. center up as high as you can get it and the ends dont need to be super high, even 6-8 feet off the ground works. the receive difference is noticeable, like actually noticeable, not just in your head. my noise floor dropped almost 2 S units when i swapped to a dipole configuration at my old QTH.

that said if you ever get the radial situation sorted on the vertical it might be worth trying again just to compare.

66.5 feet for 40m dipole, close enough to 66 that it doesnt matter. you have the space. do the inverted V and dont look back, i ran one for 3 years at a similar sized lot and worked plenty of dx on it too so your buddy is slightly overselling the vertical advantage for casual use.