Specifications

RFC-1 Advanced Operation page 6.14
The clock gains time when it runs too fast. Suppose the clock is set to a known accurate time. Six days later at 6:00
pm the RFC-1 clock is checked. Instead of 6:00 pm it reads 6:01 pm. It is running too fast and has gained 1 minute.
Positive numbers in the table below make the clock run slower. The drift is (1 * 60) / 6 = 10 seconds/day.
Using the first example above, find -20 seconds in the table. V1=8 and V2=3. Program the value 8 at address 1018
and the value 3 at address 1019 to make the appropriate calibration.
Using the second example above, find 10 seconds in the table. V1=9 and V2=4. Program the value 9 at address
1018 and the value 4 at address 1019 to make the appropriate calibration.
V1-V2
Adjust
V1-V2
Adjust
V1-V2
Adjust
V1-V2
Adjust
V1-V2
Adjust
V1-V2
Adjust
0-0
-64.0 s
2-11
-42.5 s
5-6
-21.0 s
8-0
0.0 s
10-11
+21.5 s
13-6
+43.0 s
0-1
-63.5 s
2-12
-42.0 s
5-7
-20.5 s
8-1
+0.5 s
10-12
+22.0 s
13-7
+43.5 s
0-2
-63.0 s
2-13
-41.5 s
5-8
-20.0 s
8-2
+1.0 s
10-13
+22.5 s
13-8
+44.0 s
0-3
-62.5 s
2-14
-41.0 s
5-9
-19.5 s
8-3
+1.5 s
10-14
+23.0 s
13-9
+44.5 s
0-4
-62.0 s
2-15
-40.5 s
5-10
-19.0 s
8-4
+2.0 s
10-15
+23.5 s
13-10
+45.0 s
0-5
-61.5 s
3-0
-40.0 s
5-11
-18.5 s
8-5
+2.5 s
11-0
+24.0 s
13-11
+45.5 s
0-6
-61.0 s
3-1
-39.5 s
5-12
-18.0 s
8-6
+3.0 s
11-1
+24.5 s
13-12
+46.0 s
0-7
-60.5 s
3-2
-39.0 s
5-13
-17.5 s
8-7
+3.5 s
11-2
+25.0 s
13-13
+46.5 s
0-8
-60.0 s
3-3
-38.5 s
5-14
-17.0 s
8-8
+4.0 s
11-3
+25.5 s
13-14
+47.0 s
0-9
-59.5 s
3-4
-38.0 s
5-15
-16.5 s
8-9
+4.5 s
11-4
+26.0 s
13-15
+47.5 s
0-10
-59.0 s
3-5
-37.5 s
6-0
-16.0 s
8-10
+5.0s
11-5
+26.5 s
14-0
+48.0 s
0-11
-58.5 s
3-6
-37.0 s
6-1
-15.5 s
8-11
+5.5 s
11-6
+27.0 s
14-1
+48.5 s
0-12
-58.0 s
3-7
-36.5 s
6-2
-15.0 s
8-12
+6.0 s
11-7
+27.5 s
14-2
+49.0 s
0-13
-57.5 s
3-8
-36.0 s
6-3
-14.5 s
8-13
+6.5 s
11-8
+28.0 s
14-3
+49.5 s
0-14
-57.0 s
3-9
-35.5 s
6-4
-14.0 s
8-14
+7.0 s
11-9
+28.5 s
14-4
+50.0 s
0-15
-56.5 s
3-10
-35.0 s
6-5
-13.5 s
8-15
+7.5 s
11-10
+29.0 s
14-5
+50.5 s
1-0
-56.0 s
3-11
-34.5 s
6-6
-13.0 s
9-0
+8.0 s
11-11
+29.5 s
14-6
+51.0 s
1-1
-55.5 s
3-12
-34.0 s
6-7
-12.5 s
9-1
+8.5 s
11-12
+30.0 s
14-7
+51.5 s
1-2
-55.0 s
3-13
-33.5 s
6-8
-12.0 s
9-2
+9.0 s
11-13
+30.5 s
14-8
+52.0 s
1-3
-54.5 s
3-14
-33.0 s
6-9
-11.5 s
9-3
+9.5 s
11-14
+31.0 s
14-9
+52.5 s
1-4
-54.0 s
3-15
-32.5 s
6-10
-11.0 s
9-4
+10.0 s
11-15
+31.5 s
14-10
+53.0 s
1-5
-53.5 s
4-0
-32.0 s
6-11
-10.5 s
9-5
+10.5 s
12-0
+32.0 s
14-11
+53.5 s
1-6
-53.0 s
4-1
-31.5 s
6-12
-10.0 s
9-6
+11.0 s
12-1
+32.5 s
14-12
+54.0 s
1-7
-52.5 s
4-2
-31.0 s
6-13
-9.5 s
9-7
+11.5 s
12-2
+33.0 s
14-13
+54.5 s
1-8
-52.0 s
4-3
-30.5 s
6-14
-9.0 s
9-8
+12.0 s
12-3
+33.5 s
14-14
+55.0 s
1-9
-51.5 s
4-4
-30.0 s
6-15
-8.5 s
9-9
+12.5 s
12-4
+34.0 s
14-15
+55.5 s
1-10
-51.0 s
4-5
-29.5 s
7-0
-8.0 s
9-10
+13.0 s
12-5
+34.5 s
15-0
+56.0 s
1-11
-50.5 s
4-6
-29.0 s
7-1
-7.5 s
9-11
+13.5 s
12-6
+35.0 s
15-1
+56.5 s
1-12
-50.0 s
4-7
-28.5 s
7-2
-7.0 s
9-12
+14.0 s
12-7
+35.5 s
15-2
+57.0 s
1-13
-49.5 s
4-8
-28.0 s
7-3
-6.5 s
9-13
+14.5 s
12-8
+36.0 s
15-3
+57.5 s
1-14
-49.0 s
4-9
-27.5 s
7-4
-6.0 s
9-14
+15.0 s
12-9
+36.5 s
15-4
+58.0 s
1-15
-48.5 s
4-10
-27.0 s
7-5
-5.5 s
9-15
+15.5 s
12-10
+37.0 s
15-5
+58.5 s
2-0
-48.0 s
4-11
-26.5 s
7-6
-5.0 s
10-0
+16.0 s
12-11
+37.5 s
15-6
+59.0 s
2-1
-47.5 s
4-12
-26.0 s
7-7
-4.5 s
10-1
+16.5 s
12-12
+38.0 s
15-7
+59.5 s
2-2
-47.0 s
4-13
-25.5 s
7-8
-4.0 s
10-2
+17.0 s
12-13
+38.5 s
15-8
+60.0 s
2-3
-46.5 s
4-14
-25.0 s
7-9
-3.5 s
10-3
+17.5 s
12-14
+39.0 s
15-9
+60.5 s
2-4
-46.0 s
4-15
-24.5 s
7-10
-3.0 s
10-4
+18.0 s
12-15
+39.5 s
15-10
+61.0 s
2-5
-45.5 s
5-0
-24.0 s
7-11
-2.5 s
10-5
+18.5 s
13-0
+40.0 s
15-11
+61.5 s
2-6
-45.0 s
5-1
-23.5 s
7-12
-2.0 s
10-6
+19.0 s
13-1
+40.5 s
15-12
+62.0 s
2-7
-44.5 s
5-2
-23.0 s
7-13
-1.5 s
10-7
+19.5 s
13-2
+41.0 s
15-13
+62.5 s
2-8
-44.0 s
5-3
-22.5 s
7-14
-1.0 s
10-8
+20.0 s
13-3
+41.5 s
15-14
+63.0 s
2-9
-43.5 s
5-4
-22.0 s
7-15
-0.5 s
10-9
+20.5 s
13-4
+42.0 s
15-15
+63.5 s
2-10
-43.0 s
5-5
-21.5 s
10-10
+21.0 s
13-5
+42.5 s
The default setting is 0.0 seconds—the values are V1=8 and V2=0.