On my HWS I got 24 OTA channels. On my H3 I only got 8 channels. With the same source my 4K TV gets 28 OTA channels. I have 2 OTA toggles and both work poorly on the H3.
That seems strange since the Hopper 3 should have nothing to do with what you receive. I believe it only matters about the OTA dongle. I hooked mine up and picked up the same amount of channels.