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Section 5
24
Table 5.7 Calculation of R
Range 100 is selected because the Base Result (106.38) is the largest value of the four results in the range 1 to
1024. When the range has been determined, the binary digits (R2-R0) of the Table 5.6 are selected from Table 5.8
below. These become bits D4-D2 of byte 5.
Table 5.8 Range Selection Table
In our example, R = 100, therefore:
The frequency base F is calculated after R is known by rounding the base result of Table 5.7 to the nearest whole
number and subtracting one (1). When the frequency base F has been determined, it must be converted to a 10-bit
binary number and inserted into bytes 4 and 5, bits D7-D0 and D1-D0 of Table 5.6.
The base result of 106.38 in Table 5.7 rounds down to 106 resulting in a frequency base F of 106 - 1 = 105. A check
of these results shows:
Programmed Corner Frequency = (F + 1) x R = (105 + 1) x 100
= 10,600 Hz = 10.6 kHz
This value is within the 100 Hz system resolution at the 10kHz level.
Conversion of the frequency base to a binary number is the next step. Using established methods, we find the
following binary equivalent to 105 decimal.
These digits are for insertion in bytes 4 and 5, as defined by Table 5.6
Model 9002
Remote Control Operation
DFC R Base Result
10,638 0.1 = 106,380
10,638 1 = 10,638
10,638 10 = 1,063.8
10,638 100 = 106.38 Use this 100 range.
(106.38 is the base result.)
RR2R1R0
0.1 1 1 0
1101
10 0 1 1
100 1 1 1
R2 R1 R0
111
F9 F8 F7 F6 F5 F4 F3 F2 F1 F0
0001101001
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