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unfortunately, all of the Japanese HAM RADIO model are unmodifiable to transmit out side of Japanese HAM Band, 144-146 , 430-440 MHz. due to their version of FCC regulation. I believe that is true any radio sold in Japan after mid 1990. I have heard, over there too many people modified HAM...
collins 455khz mechanical filter in quantities.
I found a price lists of 455Khz collins filter, one used in those yaesu , icom radio, etc just buy bunch with friends or for future use , and hardwire them, don't forget impedance matching between filter input / output stage. do some RF...
LA, Orange county repeater
147.090 MHz + 79.7Hz AA6DP /R Catalina island
146.385 MHz + 146.2 Hz KE6TZG /R Keller Peak
those 2 are the repeater have good coverage and used often.
initially FT-2800M come with UP, DOWN, KEY lock with LOCH switch ON.
but, this modifies to lock all KEY , except PTT to prevent accidentally change, memory CH, etc. from Microphone key
see attached PDF file
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