sonar readings are inconsistent

[CapnScurvy]

I know I've answered this before; when asked to give a sonar report of a target, the sonarman will only give you an "estimate" of range. Depending on his skill level will determine the "estimates" accuracy (which is never accurate, some just happen to be more accurate than others).

If you want an accurate sonar finding, you have to take the sonar reading yourself. Once the target is "pinged"; a return ping is heard; the reading is "Sent" to the TDC. The accurate range to target is displayed in the Range readout of the Position Keeper.