4-6.
EXTERNAL LEVELING (Cont’d)
4. Repeat Step 3 for the remaining dBV values shown in Table 4-12.
S. Press the down step key to select 10 dB of attenuation (Option 001 and 005 instruments do not
include an internal attenuator. For these instruments install a 10 dB attenuator between the RF
output and detector).
6. Repeat Step 3 for values shown in Table 4-13.
7. Press the down step key to select 20 dB of attenuation (for Option 001 or 005 instruments, remove
10 dB attenuator installed in step 5 and replace it with a 20 dB attenuator).
8. Repeat Step 3 for values shown in Table 4-14.
Table 4-13.
External Leveling Limits (With 10 dB Attenuator)
dBV
Selected
DVM Indication (mV)
Lower Limit
Ideal
Upper Limit
—30
—29.65
—31.62
—33.70
—40
—9.24
—10.00
—10.79
Table 4-14.
External Leveling Limits (With 20 dB Attenuator)
dBV
Selected
DVM Indication (my)
Lower Limit
Ideal
Upper Limit
—50
—2.785
—3.162
—3.550
—60
—0.744
—1.000
—1.259
—66
—0.273
—0.501
—0.731
HP 8340B/41B
Performance Tests
4-35