Results for: Telecommunication Laboratories, ChungHwa Telecom Co. Ltd
Filters
CMC Quick search Filters close;
?
Added keywords act as an additional filter. Keywords separated by a space will be treated by the logical function AND automatically. You may also use OR. Keyword searches also find close matches. Placing quotation marks (") before and after the search word, e.g. "word", will allow for exact matches.

In case of multiple search, please use ADVANCED SEARCH.
9 results
Reset all
CMC Area
To filter, either use the tick boxes or click on the underscored item
Geographical location
In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a 2 + b 2]1/2
Unless otherwise stated the expanded uncertainties given below correspond to k = 2 (at a 95 % level of confidence)
Chinese Taipei, TL (Telecommunication Laboratories, ChungHwa Telecom Co. Ltd.)
Frequency , Frequency : 5 MHz
Local frequency standard
Relative expanded uncertainty : 5.0E-14 Hz/Hz
Phase comparison
Measurement time : 86400 s
Amplitude : > 0.5 V (50 Ω)
Included best DUT's effect
Approved on 10 March 2015
Institute service identifier : TL/NSTF-ICT-A7-005
Time scale difference , Time scale difference : -0.5 s to 0.5 s
Local clock vs UTC
Absolute expanded uncertainty : 1.0E2 ns
Comparison against predicted UTC
1 PPS amplitude : > 0.5 V (50 Ω)
Measurement time : 86400 s
Slew rate : > 0.5 V/ns
Included best DUT's effect
Approved on 10 March 2015
Institute service identifier : TL/NSTF-ICT-SR620A-005
Frequency , Frequency : 1 Hz to 3.00E8 Hz
General frequency source
Relative expanded uncertainty : 3.0E-12 Hz/Hz
Direct frequency measurement
Measurement time : 86400 s
Amplitude : > 0.5 V (50 Ω)
Included best DUT's effect
Approved on 10 March 2015
Institute service identifier : TL/NSTF-ICT-SR620B-005
Frequency , Frequency : 10 MHz
Remote frequency standard
Relative expanded uncertainty : 2.0E-13 Hz/Hz
GPS common-view
Averaging time : 1 d
Baseline length from TL : < 1000 km
Included best DUT's effect
Approved on 10 March 2015
Institute service identifier : TL/NSTF-ICT-RTFCS-002
Frequency , Frequency : 1 MHz
Local frequency standard
Relative expanded uncertainty : 3.0E-13 Hz/Hz
Phase comparison
Measurement time : 86400 s
Amplitude : > 0.5 V (50 Ω)
Included best DUT's effect
Approved on 10 March 2015
Institute service identifier : TL/NSTF-ICT-SR620C-005
Frequency , Frequency : 3.00E8 Hz to 2.65E10 Hz
General frequency source
Relative expanded uncertainty : 6.0E-12 Hz/Hz
Frequency down-conversion method
Measurement time : 100 s
Amplitude : > 0.5 V (50 Ω)
Included best DUT's effect
Approved on 10 March 2015
Institute service identifier : TL/NSTF-ICT-MICROWAVE-001
Frequency , Frequency : 10 MHz
Local frequency standard
Relative expanded uncertainty : 5.0E-14 Hz/Hz
Phase comparison
Measurement time : 86400 s
Amplitude : > 0.5 V (50 Ω)
Included best DUT's effect
Approved on 10 March 2015
Institute service identifier : TL/NSTF-ICT-A7-005
Time interval , Time interval : -1000 s to 1000 s
Time difference source
Absolute expanded uncertainty : 1 ns
Direct time interval measurement
1 PPS amplitude : > 0.5 V (50 Ω)
Measurement time : 86400 s
Slew rate : > 0.5 V/ns
Included best DUT's effect
Approved on 10 March 2015
Institute service identifier : TL/NSTF-ICT-SR620A-005
Time scale difference , Time scale difference : -0.5 s to 0.5 s
Remote clock vs UTC
Absolute expanded uncertainty : 3.5E1 ns
GPS common-view time transfer
Averaging time : 1 d
Baseline length from TL : < 1000 km
Included best DUT's effect
Approved on 10 March 2015
Institute service identifier : TL/NSTF-ICT-RTFCS-002

Select Metrology Area

General physics
Acoustics, Ultrasound, Vibration

This metrology area covers the fields of acoustics, ultrasound and vibration.

Electricity and Magnetism

This metrology area covers the fields of DC and AC measurements, impedance, electric and magnetic fields, radiofrequencies and measurements on materials.

Length

This metrology area covers the fields of laser frequencies and dimensional metrology.

Mass and related quantities

This metrology area covers the fields of mass standards, force, pressure, density, hardness, torque, gravity and viscosity.

Chemistry and Biology
Chemistry and Biology

This metrology area covers all fields relevant to chemistry and biology.

Ionizing radiation
Ionizing Radiation

This metrology area covers the fields of dosimetry, radioactivity and neutron measurements.