This chart shows each PL tone's two-character alphanumeric designator and corresponding tone frequency in Hertz.

XZ	67.0		1B	107.2		6A	173.8

WZ	69.3		2Z	110.9		6B	179.9

XA	71.9		2A	114.8		7Z	186.2

WA	74.4		2B	118.8		7A	192.8

XB	77.0		3Z	123.0		M1	203.5

WB	79.7		3A	127.3		8Z	206.5

YZ	82.5		3B	131.8		M2	210.7

YA	85.4		4Z	136.5		M3	218.1

YB	88.5		4A	141.3		M4	225.7

ZZ	91.5		4B	146.2		9Z	229.1

ZA	94.8		5Z	151.4		M5	233.6

ZB	97.4		5A	156.7		M6	241.8

1Z	100.0		5B	162.2		M7	250.3

1A	103.5		6Z	167.9		0Z	254.1

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