Bruker HPPR/2 User Manual

MRI Active Detuning Module
64 / 92 H172204_1_001
10.3.2 RF-Section
Figure10.4: RF Measurement Paths
Measurement range insertion loss (S21): 0.02 - 0.4GHz / 0.4 - 1GHz
Insertion loss path A: max. 0.5 / 1.0 dB
Insertion loss path B: max. 0.4 / 0.8 dB
Insertion loss path C: max. 0.6 / 1.2 dB
Insertion loss path D: max. 0.5 / 1.0 dB
Measurement range VSWR (S11) and
Isolation (21):
0.005 - 1GHz
VSWR path A, B and C : all connectors max. 1.2:1 -
VSWR path D : all connectors max. 1.4:1 -
Isolation path B → C: min. 40 dB
10.4 Troubleshooting
The ADM-CRP can only be replaced as a whole unit (FEU). There are no serviceable parts.
If an FRU needs to be replaced, contact your Bruker Service Representative.
Detected failures are reported with event messages. Event messages are displayed on the
TopSpin screen and can be viewed on the Service Web pages.
10.4.1 Diagnostics
ServiceWeb pages provide some low level access to the hardware that may help to diagnose
hardware problems.
There are testpoints for all input pulses, all PIN and tune/match driver outputs and a selection
of power supply voltages.

Bruker HPPR/2 Specifications

General

Brand	Bruker
Model	HPPR/2
Category	Laboratory Equipment
Language	English