今天实验使用3.579mhz晶体，可以输出60hz～227hz的50个非标亚音，有兴趣的朋友可以自己改制。
十进制编码对应-ctcss频率：
编号：标准4mhz/非标3.579mhz
1 - 67.0hz / 59.9hz
2 - 69.3hz / 62.0hz
3 - 71.9hz / 64.3hz
4 - 74.4hz / 66.6hz
5 - 77.0hz / 68.9hz
6 - 79.7hz / 71.3hz
7 - 82.5hz / 73.8hz
8 - 85.4hz / 76.4hz
9 - 88.5hz / 79.2hz
10 - 91.5hz / 81.9hz
11 - 94.8hz / 84.8hz
12 - 97.4hz / 87.1hz
13 - 100.0hz / 89.5hz
14 - 103.5hz / 92.6hz
15 - 107.2hz / 95.9hz
16 - 110.9hz / 99.2hz
17 - 114.8hz /102.7hz
18 - 118.8hz /106.3hz
19 - 123.0hz /110.1hz
20 - 127.3hz /113.9hz
21 - 131.8hz /117.9hz
22 - 136.5hz /122.1hz
23 - 141.3hz /126.4hz
24 - 146.2hz /130.8hz
25 - 151.4hz /135.5hz
26 - 156.7hz /140.2hz
27 - 159.8hz /143.0hz
28 - 162.2hz /145.1hz
29 - 165.5hz /148.1hz
30 - 167.9hz /150.2hz
31 - 171.3hz /153.3hz
32 - 173.8hz /155.5hz
33 - 177.3hz /158.6hz
34 - 179.9hz /161.0hz
35 - 183.5hz /164.2hz
36 - 186.2hz /166.6hz
37 - 189.9hz /169.9hz
38 - 192.8hz /172.5hz
39 - 196.6hz /175.9hz
40 - 199.5hz /178.5hz
41 - 203.5hz /182.1hz
42 - 206.5hz /184.8hz
43 - 210.7hz /188.5hz
44 - 218.1hz /195.1hz
45 - 225.7hz /201.9hz
46 - 229.1hz /205.0hz
47 - 233.6hz /209.0hz
48 - 241.8hz /216.4hz
49 - 250.3hz /224.0hz
50 - 254.1hz /227.4hz
*输出非标的ctcss，需使用3.579mhz表晶！
