Originally posted by Rich Panganiban
spyspeed, Yes the modules are interchangeable between the 3PJS and the 3PK, obviously the receivers are as well. I just switched to a 3PK after running a 3PJS for 5 years.
Are you sure the Tx modules are interchangeable or are you referring to crystals?
FUTL13** RFPK27&75 Futaba RF-PK27/75 FM Transmitter Module 3PK
FUTL18** TJ27&75FM Futaba 27 & 75MHz FM Transmitter Module
Part numbers listed are totally different !