Intermittent UPM Reflected Power Messages Caused by Low-Level Port-to-Port Leakage of RF.
Symptom
Intermittent UPM Reflected Power Errors See Long Description Intermittent UPM reflected power messages are seen in the system error log like that shown below. But the scans are not interrupted and no other system problem is detected. Fri Jan 30 09:59:06 2009 Error: 2257261 Host: SMICMR2 Process: NSP File: SCP:UPM Line: 379 Exception Class: Unknown Severity: Unknown Function: RF: RF Power Monitor PSD: Spin Echo Coil: HD Foot Ankle Scan: 854/1 Universal Power Monitor 1 detected more reflected power than forward power on the Narrow Band Head Amplifier. Possible cause is swapped Forward and Reflected Power Cables. Forward Power = 0.0 W Reflected Power = 0.2 W Coil Reflected Power = 0.0 W.->
Error message
2257261 Universal Power Monitor 1 detected more reflected power than forward power on the Narrow Band Head Amplifier. Possible cause is swapped Forward and Reflected Power Cables. See Long Description Error: 2257261 Host: SMICMR2 Process: NSP File: SCP:UPM Line: 379 Exception Class: Unknown Severity: Unknown Function: RF: RF Power Monitor PSD: Spin Echo Coil: HD Foot Ankle Scan: 854/1 Universal Power Monitor 1 detected more reflected power than forward power on the Narrow Band Head Amplifier. Possible cause is swapped Forward and Reflected Power Cables. Forward Power = 0.0 W Reflected Power = 0.2 W Coil Reflected Power = 0.0 W.->
Applies to
- Models
- Discovery
- Product
- Discovery MR750. Also called DVMR. This product is compatible with 3.0T 20.0, 20.1_IB1, IB2, 21.0 and DV22.0 software only
- Software
- 20.1_IB1 and IB2 This release of software is applicable to Discovery MR450 and Discovery MR750 systems. See Long Description 20.1_IB1 is the unified Discovery MR450 and Discovery MR750 software release. Known internally to engineering as "DVIB". This release of software is applicable to Discovery MR450 and Discovery MR750 systems. 20.1_IB2 is the upgrade (bug fixes) for IB1.
- Area
- MR
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