I have been using a EmonTxV3.4CM to monitor our off grid solar power supply and consumption for two years. The EmonTx is located in a small metal shed approximately 80m away from the house where an emon base is used to receive and process the data.
The EmonTx antenna is located on the top of the metal shed and, with a ground plane under the emon base, the signal strength had been consistently around -68db. The emon base location was optimised for received signal strength previously.
Unfortunately with the installation of a new radio based internet service, the EmonTx signal has dropped of significantly. Now I am receiving only sporadic readings from the EmonT,x between 10min and 4hrs apart.
The following photos show the metal shed. The EmonTx antenna is the small stub antenna to the left of the base of the vertical support for the internet service radios. The emon base is in the direction where the lower of the two internet radios on the tripod is pointing.
I am seeking advice on how to restore the received strength of the EmonTx radio signal.