GDP-32
II
INSTRUCTION MANUAL
October 2002 Section 19, Page 10
19.6 NANOTEM WINDOW CENTERS
SAMPLE PERIOD: 1.6 MICROSECONDS
Zero Delay After Current Turnoff
WINDOW POINTS WINDOW WINDOW WIDTHS
#'S PER WINDOW CENTERS BEGINNING END
1 1 0.0 µ sec 0.0 µ sec 0.0 µ sec
2 1 1.6 1.6 1.6
3 1 3.2 3.2 3.2
4 1 4.8 4.8 4.8
5 1 6.4 6.4 6.4
6 1 8.0 8.0 8.0
7 2 10.4 9.6 11.2
8 2 13.6 12.8 14.5
9 2 16.8 16.1 17.7
10 3 20.8 19.3 22.5
11 3 25.6 24.1 27.3
12 5 32.0 28.9 35.3
13 6 40.8 36.9 45.0
14 7 51.2 46.6 56.2
15 9 63.9 57.8 70.7
16 11 79.9 72.3 88.3
17 15 100.6 89.9 112.4
18 18 127.7 114.0 142.9
19 23 161.2 144.5 179.9
20 29 202.7 181.5 226.4
21 36 254.6 228.1 284.3
22 47 320.7 285.9 359.7
23 58 404.5 361.4 452.9
24 72 508.3 454.5 568.5
25 92 639.0 570.1 716.3
26 116 804.9 717.9 902.6
27 145 1.013 m sec 904.2 1.135 m sec
28 184 1.276 1.137 m sec 1.431
29 231 1.607 1.433 1.802
30 289 2.022 1.804 2.266
31 369 2.546 2.268 2.859
To demonstrate how to determine the actual window times, we will use the 20 meter loop
parameters as an example: add the Tx delay (1.5 µs) plus the antenna delay (2.0 µs) plus the
antialias filter delay (1.0 µs) = 4.5 µs. The first sample point after the Tx turnoff and delays is at
4.8 µs (3 x 1.6), so the first window will be at 4.8 - 4.5 = 0.3 µs. The next window will be 1.6 +
0.3 = 1.9 µs, then 3.2 + 0.3 = 3.5 µs, for the next window, etc.
To Next Page
Loading...
