Problems RB-SEE-148 2km transmitter and receiver

I am having difficulty in getting the two modules to communicate.

I am using 5.0 vdc to power each module

I have left the address lines on both modules in the open position.

I have connected two of the transmitter data lines to 5 volts and left two open.

When I measure the data lines on the receiver they are always low.

When I measure the VT it is always low.

I have read the data sheets on the decoder/encoder IC and understand their operation.

I have used a scope to monitor the the DIN and it seem to get what I expect on the Data in signal.

Many other people on forums indicate that they have also had problems with the modules.

Can anyone give me additional suggestions for troubleshooting the modules.

Thanks

The problem seems to be very specific to your setup. As we suggested in the ticket you sent, contacting the manufacturer seems to be the best way of getting in-depth support for your problem. Also, it would be helpful to share some pictures or diagrams of your setup so we can try to spot what is not working properly.