Propagation - Anritsu MS2024B Manual

A-1 Vector Network Analyzer Formulas

Propagation

Propagation is the propagation velocity expressed as a ratio to the speed of light.
Cable Loss
Fault Resolution
Fault resolution (in the distance domain) is the ability of the system to separate two
closely-spaced discontinuities. Calculations for distance utilize the speed of light (c), which is
8
2.99792458 ×10 meters per second (for light in vacuum). F is frequency (in Hertz).
Maximum Horizontal Distance
D is the maximum horizontal distance that can be analyzed in DTF.
max
Suggested Span
Suggested Span is the span needed to get Max Distance to equal Stop Distance.
Suggested Span Round-Trip (Hz)
Suggested Span One-Way (Hz)
A-2
Propagation Constant
where:
Cable Loss
Cable Loss Average
Fault Resolution Round-Trip (m)
Fault Resolution One-Way (m)
(
D
= Datapoints 1
( )
max m
PN: 10580-00289 Rev. K
1
= vp = ------
≤ <
0 v 1
Return Loss (dB)
= ---------------------------------------------- -
2
Peak + Valley
(
= ---------------------------------------------
2
0.5
= -------------------------------
c
= ---------------
) ×
– Fault Resolution
( Datapoints 1
= ---------------------------------------------------------------------------------- -
Stop Distance
Datapoints 1
(
= --------------------------------------------------------------------
Stop Distance
ε
)
×
c vp
×
ΔF
× vp
ΔF
) × × c × vp
–
0.5
c
) ×
– ×
vp
Vector Network Analyzer MG
Formulas