P25 Phase 2 Commands 11-5 :FORMat Subsystem
S412E PM PN: 10580-00319 Rev. N 11-13
Converting REAL,32 Example:
The instrument returns the following values in REAL,32 format:
25 06 14 c3
1. Convert from little endian to big endian:
c3 14 06 25
2. The binary representation of the real portion, C3 14 06 25 is:
11000011000101000000011000100101
3. Binary is in IEEE format:
• 1st bit is sign bit
• next 8 bits are exponent
• next 23 bits are normalized value
4. Convert binary to decimal:
1, the MSb is the sign bit
10000110, exponent. The actual exponent value is this value minus 127. So, it is
134 – 127 = 7.
00101000000011000100101 (as normalized value) and adding 1 and multiplying
by 2^exponent results in 1+(0/2+0/4+1/8+0/16+1/32+0/64+...) * 2^7 = -148.024
(taking into account the sign bit) (approx.)
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