三种方法测量wpm(words per minute)，分别为： paris/codex/vvvvv
wpm calculations.
paris
total morse speed is dependant upon the character speed, inter-character delay and inter-word delay, to the paris test formula. this formula is based on the number of times the word "paris" can be transmitted as morse code in 1 minute. the variation of any one component will affect the resulting wpm (words per minute) rate.
codex
total morse speed is dependant upon the character speed, inter-character delay and inter-word delay, to the codex test formula. this formula is based on the number of times the word "codex" can be transmitted as morse code in 1 minute. the variation of any one component will affect the resulting wpm (words per minute) rate.
vvvvv
total morse speed is dependant upon the character speed, inter-character delay and inter-word delay, to the vvvvv test formula. this formula is based on the number of times the word "vvvvv" can be transmitted as morse code in 1 minute. the variation of any one component will affect the resulting wpm (words per minute) rate.
mrx software
morse码的时间间隔，俺简单归纳为：1：3：3：7
即嘀（dit)为1时间单位
哒（dah）为3时间单位
一个字母中嘀或哒（统称为element，元素）的间隔为1时间单位，相当于1嘀
一个单词中字母与字母的间隔为3时间单位，相当于1哒
单词与单词的间隔为7时间单位
此乃标准morse电码，手键可以随心所欲一些，不必拘泥。这也正是手键的个人风格与魅力所在。当然也不能偏差太远，否则不容易分辨。俺就听过有些手键高手发的码，全粘在一块了
发的人心里当然忒清楚，听的人就受苦了，这时就要连蒙带猜了！
morse code timing
the following time values are used in the formation of morse symbols:
dit: 1 time unit.
dah: 3 time units.
space between elements of a symbol: 1 time unit.
space between symbols: 3 time units.
space between words: 7 time units.
mrx software:
www.mrx.com.au以下为paris方法的时间数据，只列出25以下的速度。单位是毫秒。
morse speed data (paris).
the following table displays morse component values used to obtain morse speeds, paris test, at differing symbol speeds. each block contains morse speed settings to obtain the bolded heading speed. for example if you wanted morse sounded at a total speed of 5 words per minute, using 12 word per minute symbols: set the symbol speed to 12 wpm, the inter-character delay to 1404 milliseconds and the inter-word delay to 3284 milliseconds.
码速（wpm) / 字母间的间隔 / 单词间的间隔
symbol speed / inter-character delay / inter-word delay
________________________________________________________
5 wpm
5 720 1680
6 915 2140
7 1059 2463
8 1161 2706
9 1245 2897
10 1308 3048
11 1362 3173
12 1404 3284
13 1443 3376
14 1473 3442
15 1503 3508
16 1527 3567
17 1548 3607
18 1566 3659
19 1587 3699
20 1602 3732
symbol speed inter-character delay inter-word delay
___________________________________________________________
6 wpm
6 600 1400
7 741 1735
8 846 1966
9 927 2169
10 993 2308
11 1044 2445
12 1089 2544
13 1128 2636
14 1158 2702
15 1188 2768
16 1212 2827
17 1230 2879
18 1251 2919
19 1272 2959
20 1284 3004
symbol speed inter-character delay inter-word delay
___________________________________________________________
7 wpm
7 516 1207
8 618 1450
9 702 1641
10 765 1792
11 819 1917
12 864 2015
13 903 2108
14 933 2173
15 963 2239
16 987 2298
17 1005 2351
18 1026 2390
19 1044 2443
20 1059 2476
symbol speed inter-character delay inter-word delay
___________________________________________________________
8 wpm
8 450 1050
9 534 1241
10 597 1392
11 651 1517
12 696 1616
13 735 1708
14 762 1786
15 792 1852
16 816 1911
17 837 1951
18 855 2003
19 876 2043
20 891 2076
symbol speed inter-character delay inter-word delay
___________________________________________________________
9 wpm
9 402 935
10 465 1086
11 519 1211
12 564 1310
13 603 1402
14 633 1468
15 660 1546
16 687 1593
17 705 1645
18 726 1685
19 744 1737
20 759 1770
symbol speed inter-character delay inter-word delay
___________________________________________________________
10 wpm
10 360 840
11 414 965
12 459 1064
13 498 1156
14 525 1234
15 555 1300
16 579 1359
17 600 1399
18 618 1451
19 639 1491
20 654 1524
symbol speed inter-character delay inter-word delay
___________________________________________________________
11 wpm
11 327 767
12 372 866
13 411 958
14 441 1024
15 471 1090
16 495 1149
17 513 1201
18 534 1241
19 552 1293
20 567 1326
symbol speed inter-character delay inter-word delay
___________________________________________________________
12 wpm
12 300 700
13 339 792
14 369 858
15 399 924
16 423 983
17 441 1023
18 462 1075
19 480 1127
20 495 1160
symbol speed inter-character delay inter-word delay
___________________________________________________________
13 wpm
13 279 647
14 309 713
15 336 792
16 363 838
17 381 891
18 402 930
19 420 983
20 435 1016
symbol speed inter-character delay inter-word delay
___________________________________________________________
14 wpm
14 255 599
15 285 665
16 309 724
17 330 764
18 348 816
19 369 856
20 384 889
symbol speed inter-character delay inter-word delay
___________________________________________________________
15 wpm
15 240 560
16 264 619
17 285 659
18 303 711
19 324 751
20 339 784
symbol speed inter-character delay inter-word delay
___________________________________________________________
16 wpm
16 225 525
17 246 565
18 264 617
19 285 657
20 297 702
symbol speed inter-character delay inter-word delay
___________________________________________________________
17 wpm
17 210 488
18 288 541
19 249 580
20 264 613
symbol speed inter-character delay inter-word delay
___________________________________________________________
18 wpm
18 198 465
19 219 504
20 234 537
symbol speed inter-character delay inter-word delay
___________________________________________________________
19 wpm
19 189 448
20 204 481
symbol speed inter-character delay inter-word delay
___________________________________________________________
20 wpm
20 180 420
symbol speed inter-character delay inter-word delay
___________________________________________________________
21 wpm
21 171 407
symbol speed inter-character delay inter-word delay
___________________________________________________________
22 wpm
22 162 374
symbol speed inter-character delay inter-word delay
___________________________________________________________
23 wpm
23 156 372
symbol speed inter-character delay inter-word delay
___________________________________________________________
24 wpm
24 150 350
symbol speed inter-character delay inter-word delay
___________________________________________________________
25 wpm
25 144 336
mrx software
简单地说，wpm即一分钟发送或接受多少个词（word，平均为5个字母一个词)。
据统计，一般人正常说话的速度为120wpm，而即使是cw高手，最快也不过40wpm左右（个别疯子除外 :d ），可见cw是一种多么“缓慢”的语言！
