HP 8901B - Page 281

RF BLOCK
I’ \
........................
RF INPUT
r
1
20 dB 5.25 H 1 GH-PASS MHz INPUT INPUT
ATTENUATOR MIXER
ATTEN FILTER
OVERPOWER
PROTECTION
-
I
1
i’l-+
OVERPOWER
71
14
OVERPOWER
PROTECT
STATUS
60
W
0
W
I
U
INSTRUMENT BUS
TWFROM CONTROLLER