BridgeTech VB20 User Manual page 31

third party NMS systems using the Eii interface.
SuperLocal: The switching between A and B can only be performed from the
•
front panel or the probe GUI. No further switching is possible from third party
NMS systems until the operating mode is changed to MANUAL or AUTO. This last
mode guarantees no interference from overlying software control systems and
is meant as an override mode in test and fault finding scenarios.
The operating mode can be directly seen via the light of the AUTO button:
Off: Manual mode
•
Permanently on: Auto mode
•
Slowly flashing: SuperLocal mode.
•
Basic specifications:
IF frequency
range:
Main Line Loss: Typically 1 dB
Isolation: Typically 60 dB for 70-140 MHz.
Oscillator
feedthrough:
IF connectors: BNC, female, 75 ohm
RF connectors: SMA, female, 50 ohm
RF test output
level:
RF frequency: IF frequency + 1024 Mhz
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50 to 140 MHz
Typically -60 dBm at 1094 MHz
Typically -22 dB
PROBE USERS' MANUAL VERSION 5.0
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