Help improving range

I am currently a licensed ham and I have three t beams running Meshtastic. Is there any better nodes out there that maybe run more power. It seams these things don’t have great coverage. I go way from the house and I lose the others.

I am currently a licensed ham and I have three t beams running Meshtastic. Is there any better nodes out there that maybe run more power. It seams these things don’t have great coverage. I go way from the house and I lose the others.