Finding 'duotone' mhz?

[MUTCD]

Is there a reference for selective call tones (the two tones of different pitches used to activate emergency pagers)?
I am curious about Phillips County, as well as a few other counties.

 

[n0lqt]

I had these in a list from a few years ago for "Plectron" tones:


Plectron Paging Tones, Hz
282.2, 294.7, 307.8, 321.4, 335.6, 350.5, 366.0, 382.3, 399.2, 416.9, 435.3, 454.6, 474.8, 495.8,
517.8, 540.7, 564.7, 589.7, 615.8, 643.0, 672.0, 701.0, 732.0, 765.0, 799.0, 834.0, 871.0, 910.0,
950.0, 992.0, 1036, 1082, 1130, 1180, 1232, 1287, 1344, 1403, 1465, 1530, 1598, 1669,
1743, 1820, 1901, 1985, 2073, 2164, 2260, 2361, 2465, 2575, 2688, 2807, 2932, 3062,
3197, 3339, 3487

 

[cinsu]

Found using the search function

http://www.midians.com/pdf/tone_signaling.pdf