Technical data

8-13
Preset State and Memory Allocation
Memory Allocation
Table 8-5. Memory Requirements of Calibration and Memory Trace Arrays
Calibration Arrays
Data Length (Bytes)
a
Approximate Totals (Bytes)
401 pts 801 pts 1601 pts
1 chan 1 chan 2 chans
Reflection O and
Transmission O/O
Response
Response and isol.
N
× 6 + 52
N
× 6 × 2 + 52
N
× 6 × 3 + 52
2.5 k
5 k
7 k
5 k
10 k
14 k
10 k
19 k
29 k
19 k
38 k
58 k
Transmission E/O
Response
Response and isol.
Response and match
N
× 6 × 3+ 52
N
× 6 × 4 + 52
N
× 6 × 7 + 52
7 k
9.7 k
17 k
14 k
19.3 k
33.7 k
29 k
38.5 k
67.3 k
58 k
77 k
134.5k
Transmission E/O
Response
Response and isol.
Response and match
N
× 6 × 2 + 52
N
× 6 × 3+ 52
N
× 6 × 10+ 52
5 k
7 k
24.1 k
10 k
14 k
48.1 k
19 k
29 k
96.1 k
38 k
58 k
192.2k
Reflection and
Transmission E/E
Response
Response and isol.
1-Port
2-Port
Interpolated cal
N
× 6 + 52
N
× 6 × 2 + 52
N
× 6 × 3 + 52
N
× 6 × 12 + 52
Same as above in addition to
regular cal
2.5 k
5 k
7 k
29 k
5 k
10 k
14 k
58 k
10 k
19 k
29 k
115 k
19 k
38 k
58 k
230 k
Power Meter Cal
b
(N
c
× 2 × number channels
d
) +208
1 k 1.8 k 3.4 k 6.6 k
Measurement Data
Memory trace array
b
N × 6 + 52 2.5 k 4.9 k 9.7 k 19 k
Instrument State
e
6 k6 k6 k6 k
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.