how to brace a fence

i'm adding a very heavy 42.4mm galvanised black steel pole - mounted on a fence post - thats in ground with metpost
the post is 2m High

I have 3 brackets - 1 will be at the bottom of pole and the pole sits in it - the other 2 are brackets for the pole to pass through - so in that 1m length will be 3 very heavy duty galvarnised bracket

4x4 on wall using anchor bolts resined in - 3 of them for a 1.5mm high 4x4
then a gate 75cm across to a 3x3 metpost - which is where the POLE will be mounted 3m high but 1m brackets on the fence - so 2m in air for a weather station - onlt the anemometer will be at the top - the control unit will be about .5-1m above the fence - so 1.5-2m on the pole

Then another 3x3 post is just 35cm away - all cladded between the posts with rails and wood uprights - didnt measure thosoe

I'm thinking of using some 95x45 that i have and putting thos across the 3x3 - but at an angle - maybe 3 or 4 of those

also a brace from the 4x4 across the gate to the 3x3 - but would be good if i could lifth that off and swing down - not sure how to do that - i'm only .5km from the sea

i have attached a jpg - the green is my proposed plan

any thoughts

Hi! Sounds like a solid plan, especially with that sea wind. Linking the two 3x3 posts with the diagonal 95x45s is a great move—it’ll create a rigid triangle and stop the Metposts from rocking under the mast load. For the drop-down gate brace, I’d just use a single heavy-duty coach bolt through the wall post to act as a pivot. Don't tighten it fully (use a nyloc nut), and it’ll swing down perfectly. On the receiving post, just make a simple wooden slot or 'U' bracket for it to drop into. Lift, swing down, done. Good luck!

thanks for the quick reply

ok, simple as that in fact thats made me think again -
i can just put block on each post and a straight bracket and then the brace just drops over that and will stop side to side as well as back and forth - or as you say just drop in some how - happy about that

but where the angle of the brace goes over the far rght 3x3 - can i just leave it touching the edge of the 3x3 and screw (bolt srews into the post
i dont want to try and cut things at an angle etc etc

new picture

Glad the drop-down idea helps! For the diagonals: Don't worry about cutting angles. It’s just extra work. You can absolutely just let the 95x45 overlap the post and bolt it through as is. Just use Coach Screws (Lag bolts) with a nice big washer. The washer will grip the wood tight even if it's sitting at a slight angle. Simple and strong.

Excellent - will probably have a go tomorrow - WOW thank so much