795
Federal Aviation Administration, DOT
Pt. 36, App. A
where
h
(
d
) is listed in Table A36–4 and f
0
in Table
A36–5;
a
(i) is the attenuation coefficient in dB/1000
ft;
q
is the temperature in
°
F; and
H is the relative humidity, expressed as a
percentage.
A36.7.2(b) For calculations using the Inter-
national System of Units (SI):
α
η δ
θ
θ
i
log
0
0
( )
=
+
×
(
)
+
×
−
[
]
( )
+
×
−
[
]
−
−
10
10
2 05
1000
1 1394 10
1 916984
8 42994 10
2 755624
3
3
.
/
.
.
log
.
.
( )
f
f
and
δ
θ
θ
θ
=
1010
0
f
10
10
1
3 179768 10
2 173716 10
1 7496 10
2
4 2
6 3
log
.328924
.
.
.
H
−
+
×
(
)
−
×
+
×
(
)
−
−
−
×
where
h
(
d
) is listed in Table A36–4 and f
0
in Table
A36–5;
a
(i) is the attenuation coefficient in dB/100
m;
q
is the temperature in
°
C; and
H is the relative humidity, expressed as a
percentage.
A36.7.3 The values listed in table A36–4 are
to be used when calculating the equations
listed in section A36.7.2. A term of quadratic
interpolation is to be used where necessary.
Section A36.8 [Reserved]
VerDate Sep<11>2014
12:50 Apr 30, 2019
Jkt 247046
PO 00000
Frm 00805
Fmt 8010
Sfmt 8002
Y:\SGML\247046.XXX
247046
ER08JY02.012</MATH>
ER08JY02.013</MATH>
spaschal on DSK3GDR082PROD with CFR