rectification of defect on mf / hf 500 w onboard icgs sujeet at goa - mf / hf 500w ( sailor 6369 tx / rx ) gmdss set ( m / s cobham make ) has been rendered defective wherein set is getting switched off while tuning and not transmitting as well. dl revealed defective pa and filter module and exciter control module ( combiner board ) . scope of work entails following: - ( i ) repair of pa and filter board ( ii ) repair of exciter control module ( combiner board ) ( iii ) replacement of rf transistors ( qty-04 nos ) , relay ( qty- 04 nos., capacitor and inductors ( qty- 04 nos. each ) ( iv ) calibration of power transistor as per oem procedures ( v ) impedance matching of the filters as per oem procedures.stw of mf / hf 500w ( sailor 6369 tx / rx ) gmdss set to be undertaken onboard icgs sujeet post repair, and equipment to be proved for satisfactory operation. => limited