What is going on here?

[XPS]

Thanks... we have some light at the end of the (long) tunnel we have been in. The RF chipset that we used for the Nano receivers is going back into production. Transmitter modules will not be possible as they are currently. The company that made those RF modules discontinued them 7 years ago. We have depleted our inventory recently (last month), but we can use the RFU as a transmitter. We just have to adapt it to our transmitter module circuitry so we are looking at an easy way to do that.