Total posts : 45366
heres a little update on my amt3000. i took it back to my house and set it up on my roof. i found a100ft length of 16awg copper wire, stripped it at the center point, and draped over either side of my roof. i used an alligator clip to connect the center point to my transmitter’s ground. i tuned up the coil and got it to peak at 13V on the dime. walking around my neighborhood with a digital receiver i was able to hear it decently at 300m after which is cut out pretty fast. listening in my car i was able to get 600m away before it cut out!
i went to home depot and bought an 8ft grounding rod. on my way home i wasn’t able to pick up the signal until right outside my house. i checked the voltage and it was down to 3.5V! i tried retuning it but haven’t been able to get it past 3.5V.
any ideas what might of happened? it was pretty hot out today (around 87F) and the transmitter was in direct sunlight. might that have done something?
on the plus side i just finished hammering in a ground rod in my backyard so hopefully once i get the transmitter tuned up properly i will get an improved range.