TABLE II-3
Slant path fade duration statistics + (6)
Station number _ _ _ _ _ _
Receive station
RX site name
RX country
(1)
_ _
RX latitude (–90..+90) (degrees)
_ _ _ _ _ _ _ _ _ _ _
_
_
_
_
_
_

_
_
_
_
_
_
_
_
_
_
RX longitude (0..360) (degrees) E
RX altitude amsl h gr
(m)
RX antenna height ag h r
(m)
RX 3 dB beamwidth
 r
RX rain zone
(2)
(degrees)
RX antenna type
RX antenna diameter
RX antenna feed type
D (m)
RX radome? (Y/N)
RX figure of merit (dB(K
–1
))
_ _ _
_ _ _  _ _ _ _
_ _ _ _
_ _
_
_ _ _  _ _
_ _ _ _ _ _ _ _ _ _
_
_
_
_
_
_
_
_
_
_
_


_
_
_
_
_
_
_
_
_
_
_
RX clear-sky level XPD
0
(dB)
RX maximum side-lobe angle

4 (degrees)
RX relative level of maximum side lobe (dB)
RX dynamic range (dB)
_ _ _  _ _
_ _ _  _ _
_ _ _  _ _
_ _ _  _ _
Measurement: Experiment No.
Satellite name
Satellite orbital position (degrees) E
Type of experiment
_ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _  _
_
_
_
_
_
Start date (yyyy.mm.dd)
End date (yyyy.mm.dd)
Duration d (days) (1)
Frequency f (GHz)
Polarization (L/C)
Polarization tilt angle
 p
(degrees)
Elevation angle (degrees)
(7)
RX integration time (3) (s)
Data sampling interval (s)
Data resolution (dB)
_ _ _
_
_
_
 _
_ _ _ _  _ _  _ _
_ _ _ _  _ _ _
_
_
_
_

_
_
_
_
_


_
_
_
_
_

_
_
_
_
_
_
_ _ _ _  _ _ _
_ _ _ _  _ _ _
Minimum fade duration analyzed (s)
Attenuation presented as excess or total (E/T)
__
_
____________________
+
In addition to the tables provided in this document the submitter is requested to provide the data files according to the instructions available on ITU-R SG 3 Web page: Study Group 3 databanks - DBSG3 .
D:\726836437.DOC 10.04.20 10.04.20

Table a: Total data content
N(d > D, a > A), the total number of fades of duration d longer than D for a given threshold A , and T(d > D, a > A) , the total fading time due to fades of duration d longer than D for the threshold A .
Fade Duration (s) Total number of fades Total fading time (s)
A = 1 dB
3 dB
5 dB
10 dB
15 dB
20 dB
25 dB
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Table b: Cumulative probability of occurrence of fade events (4)
P ( d > D | a > A ), the probability of occurrence of fades of duration d longer than D (s), given that the attenuation a is greater than A
(dB). ( _

_ _ _ _ )
Fade Duration (s) 1 10 30 60 120 180 300 600 900 1200 1500 1800 2400 3600
A = 1 dB
3 dB
5 dB
10 dB
15 dB
20 dB
25 dB
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Table c: Cumulative distribution of fading time (4)
F ( d > D | a > A ), the cumulative exceedance probability, or, equivalently, the total fraction (between 0 and 1) of fade time due to fades of duration d longer than D (s), given that the attenuation a is greater than A (dB). ( _

_ _ _ _ )
Fade Duration (s) 1 10 30 60 120 180 300 600 900 1200 1500 1800 2400 3600
A = 1 dB
3 dB
5 dB
10 dB
15 dB
20 dB
25 dB
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
D:\726836437.DOC 10.04.2020 10.04.2020

- 3 -
3M/94 (Annex 12)-E
Table d:
Number of fade events and mean duration for a given attenuation level
Total outage/unavailable time = number of events times mean duration
0.001% 0.002% 0.003% Probability level of exceedence
P(A>A
*
)
0.05 % 0.1% 0.2%
A
0.001
-
A
0.002
-
A
0.003
-
Corresponding Attenuation
A (dB)
A
0.05
A
0.1
-
A
0.2
-
Number of fade events >1 s
Mean duration of fade events > 1 s
Total outage time (s)
Number of fade events

10 s
Mean duration of fade events

10 s
Total unavailable time (s)
Unavailable time in % of
Total outage time
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.005%
0.3 %
-
-
-
-
-
-
-
-
-
-
-
-
-
-
A
0.005
-
A
0.3
-
0.01
0.5%
-
-
-
-
-
-
-
A
0.01
-
A
0.5
-
0.03%
-
-
-
-
-
-
-
A
0.03
-
0.02%
1%
-
-
-
-
-
-
-
A
0.02
-
A
1
-
D:\726836437.DOC 10.04.2020 10.04.2020

- 4 -
3M/94 (Annex 12)-E
Table e: Cumulative probability of occurrence of fade events
P ( d > D | a > A ), the probability of occurrence of fades of duration d longer than D (s), given that the attenuation a is greater than A
(dB). ( _

_ _ _ _ )
Fade Duration (s)
A*
(dB)
1 10 30 60 120 180 300 600 900 1200 1500 1800 2400 3600 Probability level of exceedance
(PA>A*)
0.001 %
0.002 %
0.003 %
0.005 %
0.01 %
0.02 %
0.03 %
0.05 %
0.1 %
0.2 %
0.3 %
0.5 %
1 %
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Table f: Cumulative distribution of fading time
F ( d > D | a > A ), the cumulative exceedance probability, or, equivalently, the total fraction (between 0 and 1) of fade time due to fades of duration d longer than D (s), given that the attenuation a is greater than A (dB). ( _

_ _ _ _ )
Fade Duration (s)
Probability level of exceedance
(PA>A*)
0.001 %
0.002 %
0.003 %
0.005 %
0.01 %
0.02 %
0.03 %
0.05 %
0.1 %
0.2 %
0.3 %
0.5 %
1 %
A*
(dB)
-
-
-
-
-
-
-
-
-
-
-
-
-
References
Comments:
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10 30 60 120 180 300 600 900 1200 1500 1800 2400 3600
-
-
-
-
-
-
-
-
-
-
-
-
-
D:\726836437.DOC 10.04.2020 10.04.2020

- 5 -
3M/94 (Annex 12)-E
(1)
Use ISO 3166-1 alpha-2 country codes .
(2) This was referring to Rec. ITU-R P.837-1
In the current version, these zones do not exist.
(3) The recommended integration time is 1 second.
(4) Both Tables b and c have to be filled in.
(5) Duration is the total time of valid measurements for this dataset, expressed as a real number (e.g.
339.888 days). The ratio of duration to the period identified by the start and the end dates of this dataset is the availability (e.g. start=2001/1/1, end=2001/12/31, duration= 339.888 days corresponds to
93.12 % availability).
(7)
(6) Submissions should comply with the acceptance criteria specified in Rec. ITU-R P.311.
Tilt angle is referred to polarisation tilt angle with respect to the local horizontal plane.
D:\726836437.DOC 10.04.2020 10.04.2020