11-06-2023, 05:06 PM
VSB on a DSB receiver will give twice the output up to the VSB cut off frequency, that is why VSB sets have a slope in the response around the carrier. Much easier than SSB (with carrier) at the transmitter end, the extra bit of the sidebands was merrily sent to a dummy load. OK this did reduce efficiency a bit but most of the signal was low frequency and did reduce bandwidth.
I want a PNP valve!
