kenwood th-d72 extended tx mod
其实只要把图里显示的d729二级管去掉就可以了。
扩频后发射：142-151.995 mhz 420-449.975 mhz
这个我估计很有可能是d72a的扩频方法，d72e是否适合还需测试。
原帖地址：
http://www.worldwidedx.com/kenwood/85009-kenwood-th-d72-extended-transmit-mod.htmlhere is how you modify the th-d72 to transmit out of the 2m/440 band:
1.take the radio apart by following this sequence of steps:
2.remove the battery.
3.remove the antenna and pull off the top dial knobs
4.remove the two screws on the back.
5.unlatch the rubber ports cover from the post on the back. use a small screwdriver to slip under and it just pops off.
6.pull the case up and off.
7.detach the rubber button cover from the front and set it aside.
8.at the bottom front of the circuit board, below the number button pads, there is a small diode labeled d729. remove that diode shown in this pic:
