Agilent Technologies 8590L - Page 263

264 Chapter5
Troubleshooting the IF Section
IF Power-Level Measurement
Table 5-4 Calibration-Attenuator Control Lines
Reference
Level
(dBm)
Calibratio
n
Attenuato
r
IFA1
(1 dB)
A12J2-4
IFA2
(2 dB)
A12J2-3
IFA3
(4 dB)
A12J2-2
IFA4
(8 dB)
A12J2-1
IFA5
(16 dB)
A12J2-11
010LHLHL
−19HLLHL
−28LLLHL
−37HHHLL
−46 LHHLL
−55HLHLL
−64LLHLL
−73HHLLL
−82 LHLLL
−91HLLLL
H = >2.5 V (TTL High)
L = <0.8 V (TTL Low)