TB 9-4931-488-35
hours, using the dc and low frequency and microwave technique.
prescribed by TB 750-25.
b. Adjustments to be reported are designated (R) at the end of the sentence in which
they appear. When adjustments are in tables, the (R) follows the designated adjustment.
Report only those adjustments made and designated with (R).
pertain to this calibration are listed in table 1.
Test instrument parameters
Performance specifications1
Internal reference
Range: 5 MHz
Accuracy: +1 ppm
Drift: <0.05 ppm per hr
Frequency
Range: 0.5 to 512 MHz
0.5 to 1024 MHz (option 002)
Accuracy: Counter resolution (1 count) +
reference error 2 ppm (locked mode)
Stability: <10 ppm/10 minute (unlocked mode)
<0.1 ppm for +5% to -10% line voltage
change (locked mode
Harmonics (at 1 V ,+ 10 dB output range and below)
>30 dB below fundamental, 0.5 to 512 MHz )
>12 dB below fundamental, 512 to 1024 MHz
(option 002)
Subharmonics (option 002)
>20 dB below fundamental, 512 to 1024 MHz
Output Level (Top 10 dB Of Vernier Range)
Options
Frequency Range
Output Level (dBm)
Accuracy (dB)
(MHz)
1.5
Basic, 001, and H66
0.5
to
512
+19 to -7
2.0
-7 to -47
2.5
-47 to -137
3
1.5
002
0.5
to
64
+18.5 to -7
2.0
-7 to -47
2.5
-47 to -1373
2.0
64
to
512
+18.5 to -7
2.5
-7 to -47
3.0
-47 to -137
3
3.0
512
to 1024
+13 to -7
3.5
-7 to -47
4.0
-47
to -127
3
003
0.5
to
512
+18.5 to -7
+1.75
-2.25
-7
to
-47
+2.25
-2.75
-47
to -1373
+2.75
-3.25
See footnotes at end of table