
Paging PL1877A Microprocessor Radio Telephone Interconnect
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Table 4. Plectron Tone Group/Frequency Chart (in Hz)
3rd and 4th
Digits
0
1
2
3
4
5
6
7
8
9
Tone Group P1
643 672 701 732 765 799 834 871 910 950
Tone Group P2
992 1036 1082 1130 1180 1232 1287 1344 1403 1465
Tone Group P3
1530 1598 1669 1743 1820 1901 1985 2073 2164 2260
Tone Group P4
2361 2465 2575 2688 2807 2932 3062 3197 3339 3487
Tone Group P5
282.2 294.7 307.8 321.4 335.6 330.5 366.0 382.3 399.2 416.9
Tone Group P6
435.3 454.6 474.8 495.8 517.8 540.7 564.7 589.7 615.8 742.5
5/6 Tone
The following charts are used with 5/6 Tone paging:
Table 5 – Tone Timing (in milliseconds)
Motorola EIA
TX up time 350 ms
Preamble 690 ms
Gap 45 ms
1
st
add tone 33 ms
Next 4 tones 33 ms
Gap 800 ms
Number of times to signal 2 ms
Time (in seconds) 2.95 ms
Table 6 - 5/6 Tone Frequencies (in Hz)
Digit Frequency Digit Frequency
0 600 6 1446
1 741 7 1587
2 882 8 1728
3 1023 9 1869
4 1164 R 459
5 1305 X 2010
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