SMA-3.5mm-2.92mmK and 1.85mmV-2.4mm connector mating

SMA connectors are mechanically compatible with 3.5mm connectors and 2.92mm K connectors, but return loss occurs at the connection point due to differences in the size of the outer conductor and center conductor. 1.85mm V connectors are mechanically compatible with 2.4mm connectors, but return loss occurs at the connection point due to differences in the size of the outer conductor and center conductor.