Here’s a couple of pics. You can buy the 5/8"x 11 adapter at most survey supply stores. The female end simply screws into the bipod or adapter on a tribrachs. I just bought a nut at a local hardware store for the male end which is inside the cap. The other hole is for the antenna cable out to the M2. I don’t keep anything in the PVC mount, it’s just for the helical antenna.
I’d like to make it bigger for the battery, M2 and LoRa; but I no longer use the helical antenna. The Harxon GPS 500 antenna simply has a 5/8"x11 female end for a survey bipod. I could mount the Harxon on top of the bigger PVC design and then have everything inside. However, I may have problems with overheating the M2 in the enclosure. The M2 and battery is in the hip bag hanging off the bipod.
