关于此机器的扩频diy，还有图纸。
http://www.mods.dk/mods.php3?radio=kenwood&model=th-f6&selectid=all#2161this mod expand the frequency range to:
th-f6a can receive 142-152, 216-235, 420-450 mhz on a-band.
th-f6a can transmit 137-174, 216-235, 410-470 mhz.
th-f7e can receive 137-174, 410-470 mhz on a-band.
th-f7e can transmit 137-174, 410-470 mhz.
first remove the grey（adj.灰色的） plastic mic speaker cover on the side of the radio (trust me if you forget it will be impossible to get it apart!).
then the ant. and the vol tunning knob and the nuts（nut，锣帽） below then, take the battery off and remove the two screws below the battery pack.
take the cover off very slow cause you damage（v.损害） the speaker wire if you mess up（弄乱） and go fast!.. you can leave the speaker connnected, just push the top part off to the side very gently!
once in the radio look over to the left side below the mic...
you will see a series of three diodes remove the top one (see photos)
look below the last diode and you will see a chip resistor (see photos)
i heated（heat，热） them very quick and placed a thin jewelers screw（钟表螺丝刀） drive under neeth and it came right off the board.
just another note, make sure that the joystick mounts（mount 名词，衬纸，装配） correct or else it might not function correct.
caution:
these mods will reset and initialise the memory contents. so, write down important memory channel frequencies before performing the mod.
