EXFO FVA-3150 Variable Attenuator User Manual
Page 35
Setting Up Your Variable Attenuator
Variable Attenuator
29
Selecting and Using an Attenuation Display Mode
Any value within the attenuation range may be selected as the reference.
When Reference mode is enabled (by selecting Ref):
the current absolute attenuation setting becomes the reference value
and appears in the lower portion of the display; and
0.000 dB (relative attenuation) is displayed in the upper portion of the
display.
If the attenuation is increased by 1.0 dB, the upper digits (relative
attenuation) will display -1.000 dB and the lower digits (absolute
attenuation) will indicate -17.450 dB.
dB
Ref
dB
Relative attenuation
Absolute attenuation
See also other documents in the category EXFO Measuring instruments:
- ADSL2+ (124 pages)
- ADSL2+ (267 pages)
- ADSL2+ (275 pages)
- ARU-100 HPNA Test Probe (26 pages)
- ARU-100 HPNA Test Software Option for DSL/IP Tests (3 pages)
- AXS-100 Series OTDR (155 pages)
- AXS-200 SharpTESTER (70 pages)
- AXS-200/610 Copper Test Module (152 pages)
- AXS-200/650 IP Triple-Play Test Set (91 pages)
- AXS-200/850 Ethernet Test Set (262 pages)
- CableSHARK P3 VF/DSL Cable Qualifier (321 pages)
- DC0091A (3 pages)
- ELS-500 Light Source (45 pages)
- EOT Series (2 pages)
- EPM-ELS-50 (206 pages)
- ETS-1000 (173 pages)
- ETS-1000G (195 pages)
- ETS-1000L (47 pages)
- EXpert IP Test Tools (62 pages)
- EXpert IPTV Test Tools (FTB-1 / 2 Pro) (82 pages)
- EXpert IPTV Test Tools (FTB-200v2) (82 pages)
- EXpert VoIP Test Tools (107 pages)
- FIP-400 Fiber Inspection Probe and ConnectorMax (78 pages)
- FIP-400B Fiber Inspection Probe Multifiber (2 pages)
- FIP-400B Fiber Inspection Probe and ConnectorMax2 (111 pages)
- FIP-425B/435B Fiber Inspection Probe and ConnectorMax2 Mobile (103 pages)
- FLS-110 Optical Polarized Source (18 pages)
- FLS-300 Light Source (40 pages)
- FLS-5800 CD/PMD Analyzer Source (106 pages)
- FLS-5800 CD/PMD Analyzer Source (98 pages)
- FLS-5800 (6 pages)
- FLS-600 Light Source (79 pages)
- FOA Compatibility (3 pages)
- FOT-5200 Coarse Spectrum Analyzer (47 pages)
- FOT-930 Multifunction Loss Tester (111 pages)
- FTB -5240S/5240BP Optical Spectrum Analyzer for FTB 500 (NS-1434) (537 pages)
- FTB-5230S Optical Spectrum Analyzer for FTB 200 v2 (659 pages)
- FTB-5230S Optical Spectrum Analyzer for FTB 200 v2 (251 pages)
- FTB -5240S/5240BP Optical Spectrum Analyzer (638 pages)
- FTB-1 (234 pages)
- FTB-2 Pro (6 pages)
- FTB-2 Pro (443 pages)
- FTB-200 v2 Compact Modular Platform (222 pages)
- FTB-2200 for FTB-200 v2 (41 pages)
- FTB-3930 MultiTest (101 pages)