Othernet (previously Outernet) have been doing interesting things. They have a dev board (Dreamcatcher 3) that can send and receive LoRa on 54 MHz to 5.4 Ghz and receive LoRa from their ku-band satellite covering the continental US: https://www.rtl-sdr.com/outernet-dreamcatcher-3-sale-99-for-the-full-kit-te… and they have a stand-alone wideband RF mixer for $200: https://www.crowdsupply.com/outernet/morfeus -- marc/juul