Is the 50 m clear line-of sight, or are there walls or other obstructions in the way? If it’s clear line-of sight with nothing substantial between the emonTH and whatever your base station is, then you’ll probably be OK. If reception is marginal, adding a ground plane to both transmitter (emonTH) and receiver (base) will help.
Probably one for @Robert.Wall but does the gauge of the EmonTX/TH antenna affect its signal strength?
(I know it’s length needs to be fairly precise).
I’ve moved my base station, and trying to improve their signal strength.
Paul
Hello.
I’ve experimenting with different type of antenna for a emonTH. They supposed to be all 433Mhz . But I’ve get best results only with single piece of wire from Cat5 cable 173mm length.
May be I need some resistor “R2”-location. May be I’ve missed some important part of theory? Why the best result I’ve get with so simple thing.
BTW Is there any difference how antenna and PCB are oriented to each other? [image]
I’m not sure if this is hardware issue or a software issue, so mods please move this thread as needed.
I’ve just switched over to from using a DIY USB Arduino/RFM12B box connected to my home server to using a EmonBase (RPi2+RFM69Pi on 868Mhz) on the latest EmonSD image from the 3rd May.
It’s been running a few hours and picking lots of data and posting it to emoncms,org, but I’m seeing lots of gaps in the data from missed packets, every few minutes. It’s making the graphs look rather untidy …