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Preset State and Memory Allocation
Memory Allocation
Table 8-5. Memory Requirements of Calibration and Memory Trace Arrays
Calibration Arrays
Approximate Totals (Bytes)
Data Length (Bytes)a
401 pts
801 pts
1 chan
1601 pts
1 chan
2 chans
Reflection O and
Transmission O/O
Response
N × 6 + 52
2.5 k
5k
10 k
19 k
Response and isol.
N × 6 × 2 + 52
5k
10 k
19 k
38 k
N × 6 × 3 + 52
7k
14 k
29 k
58 k
Response and isol.
N × 6 × 3+ 52
7k
14 k
29 k
58 k
Response and match
N × 6 × 4 + 52
9.7 k
19.3 k
38.5 k
77 k
N × 6 × 7 + 52
17 k
33.7 k
67.3 k
134.5k
Response and isol.
N × 6 × 2 + 52
5k
10 k
19 k
38 k
Response and match
N × 6 × 3+ 52
7k
14 k
29 k
58 k
N × 6 × 10+ 52
24.1 k
48.1 k
96.1 k
192.2k
Response
N × 6 + 52
2.5 k
5k
10 k
19 k
Response and isol.
Transmission E/O
Response
Transmission E/O
Response
Reflection and
Transmission E/E
N × 6 × 2 + 52
5k
10 k
19 k
38 k
1-Port
N × 6 × 3 + 52
7k
14 k
29 k
58 k
2-Port
N × 6 × 12 + 52
29 k
58 k
115 k
230 k
(Nc × 2 × number channelsd) +208
1k
1.8 k
3.4 k
6.6 k
N × 6 + 52
2.5 k
4.9 k
9.7 k
19 k
6k
6k
6k
6k
Interpolated cal
Power Meter Calb
Same as above in addition to
regular cal
Measurement Data
Memory trace arrayb
Instrument Statee
a. N = number of points
b. This variable is allocated once per active channel.
c. The number of points that was set at the time the cal was turned on.
8-13