Product code of the radar set is M88305. I'm afraid that the magnetron of my over twenty years well run marine radar 'has arrived to the end of its road'. I can find some noise in the center of the screen in 0,25 nm range only. Am I supposed right... Type of the original magnetron is JRC AMG-1 and I've found replacement unit type NJRC M1439. Is it the suitable type? If so, could you kindly give your best quotation of that, too. Could you kindly advise me, do I need to do any new adjustments in case installing that M1439 in place of AMG-1. Or is eg. voltage levels etc. same as for the original one.

Boating - JRC - Jma-2343 4kw Crt Radar