Our 147.375 machine is in transmit. Turns out there is a signal on the input frequency - 147.975. It may be a club member or perhaps not a club member that is accidentally keying there radio.
So please check your rig to make sure you’re not stuck in transmit. That is what seems to be blocking the 375 machine.
For now, the receive antenna is unplugged. We will restore it when the 147.975 interference stops.
73, Len
K3SLJ