You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
Click here to find out how to win free radios from Retevis!
I don't recall ever seeing a straight 520 without the "S". I have seen 520S, 520SE, and even a rare 520D model hat was not meant for export from Japan but do not remember ever seeing a straight 520.Maybe it's a 520SP but I can't see the notch filter knob.
This forum does not allow a single user to have more than one username. If anyone wants to change their username contact an admin and it will be done. Multiple accounts belonging to the same member will be deleted without warning.