ACAO/ICAO Frequency Management Workshop Summary
A
C
A
O
/
I
C
A
O
F
r
e
q
u
e
n
c
y
M
a
n
a
g
e
m
e
n
t
W
o
r
k
s
h
o
p
S
u
m
m
a
r
y
o
f
d
i
s
c
u
s
s
i
o
n
s
Casab
l
an
ca,
Moroc
c
o
6
-10/6/2022
1
Casablanca,
Morocco.
•
The
W
orkshop
w
a
s
a
tte
n
ded
b
y
(
25
)
part
i
cipants
f
r
om
(
8
)
S
tates
an
d
four
(
4
)
O
rgan
i
z
ations
(
A
CA
O
,
G
CC,
I
AT
A
,
an
d
ICAO
)
.
H
i
s
t
o
r
y
o
f
t
h
e
W
o
r
k
s
h
o
p
2
A
g
e
n
d
a
o
f
t
h
e
W
o
r
k
s
h
o
p
3
Agenda
Item
1:
Introduction
Agenda
Item
2:
Aeronaut
i
cal F
r
equen
c
y
P
l
ann
i
ng
-
WRC
Process
-
Expla
i
ning
the
plann
i
ng
criteria
-
Cur
r
ent
MID
frequency
allotment
plan
-
Amendment
of
the
MID
frequency
allotment
plan
Agenda
Item
3:
F
r
equen
c
y
Finder
(
F
F)
T
ool
-
F
r
equen
c
y
Finder
T
ool
requirements,
fun
c
tions
and
installation
Agenda
Item
4:
VHF
C
O
M
Module
-
Performing
Ba
s
ic
e
x
erc
i
ses
(Scenarios
prepared)
-
Updat
i
ng
the
States
frequencies
in
the
G
lobal
databa
s
e
Agenda
Item
5:
VHF
N
A
V
Modu
l
e
-
Performing
Ba
s
ic
e
x
erc
i
ses
(Scenarios
prepared)
-
Updat
i
ng
the
States
frequencies
in
the
G
lobal
databa
s
e
Agenda
Item
6:
O
ther
Spe
c
trum
issues
-
G
NSS
Interference
-
5G
•
Th
e
p
a
rticipa
n
ts
i
n
stall
e
d
the
f
r
equency
finder
tool (FF
T
oo
l
)
.
l
a
test
vers
i
on
o
f
t
h
e
•
The
W
orkshop pro
v
ided
hands-
o
n t
r
a
i
n
i
n
g
o
n the
F
F
T
o
o
l
functions
o
n
VH
F
COM
an
d
VH
F
N
A
V
mod
u
l
e
s.
•
The
W
orkshop
rec
e
ived
update
o
n
the
Han
d
b
o
ok
on
S
u
m
m
a
r
y
o
f
D
i
s
c
u
s
s
i
o
n
s
4
•
The
p
a
rticipants
revie
wed
and
u
p
d
ate
d
the
i
r
S
t
ates
registe
r
ed
frequ
e
nc
i
e
s
for
VH
F
COM
highligh
t
e
d
that
a
n
d
N
A
V
mod
ule
s
.
It
was
not
freq
u
e
n
cies
t
h
at
are
c
o
ord
i
n
ated/reg
is
tered
wou
l
d
not
be
protect
e
d,
theref
or
e,
States
need
to
en
s
ure
that
all
operation
a
l
fr
e
q
u
e
nc
i
e
s
are
reg
is
tered.
•
The
W
ork
s
h
op
noted
that
i
n
order
to
a
c
hieve
internat
i
on
a
l
protectio
n
a
ssig
nmen
t
s
fr
o
m
h
a
r
mful
i
n
t
erfere
n
c
e,
need
to
be
co
ordinated
all
fre
q
ue
n
cy
thro
u
gh
the
I
C
AO
m
a
y
Re
g
i
o
n
a
l
O
f
fice.
Howe
v
e
r
,
s
o
me
n
at
i
on
a
l
fre
q
ue
n
c
i
es
nee
d
to
be
c
oordinat
e
d
as
we
l
l
if
their
op
er
at
i
on
impa
c
t
a
d
j
ac
e
nt
States.
S
u
m
m
a
r
y
o
f
D
i
s
c
u
s
s
i
o
n
s
5
•
Th
e
w
o
rkshop
re
c
alled
M
I
DA
N
PI
R
G
/
12
C
o
nc
l
usi
o
n
related
to
t
h
e
dec
o
m
missioning
o
f
NDB
s
b
y
2012
.
T
he
W
orkshop
noted
t
h
at
around
15
0
NDBs
are
st
i
ll
in
opera
t
ion
i
n the
MID
R
e
g
i
o
n
.
•
The
W
orkshop
rec
e
ived
update
f
r
om
I
A
T
A
o
n
the
GNSS
inter
f
eren
c
e
i
n
c
idents
i
n
the
MID
R
e
g
ion.
T
he
W
orks
h
op
noted
the
large
n
u
mber
o
f
i
n
cidents
reported,
inter
f
erence
‘s
hotspot
an
d
t
r
en
d
.
S
u
m
m
a
r
y
o
f
D
i
s
c
u
s
s
i
o
n
s
6
•
The
Worksh
o
p
rec
a
l
l
ed
the
i
s
sue
of
frequen
c
y
saturat
i
on
for
the
VH
F
N
a
vigat
i
on
a
l
aids
in
the
M
I
D
Reg
i
o
n.
It
was
re
i
terat
e
d
that
State
s
s
h
ou
l
d
up
d
ate
the
ICAO
f
r
e
qu
e
n
c
y
Glob
a
l
da
tab
as
e
as
a
first
step
to
minimize
the
s
aturatio
n
.
•
The
Worksh
o
p
rec
a
l
l
e
d
that
the
M
I
D
Region
agr
e
ed
to
redu
c
e
the
c
h
an
nel
s
p
a
cing
for
VH
F
NA
V
(100
KH
Z
to
50
KHZ)
a
n
d
am
e
nd
the
MID
Reg
i
on
Plan
a
c
c
ord
i
ng
l
y.
•
The
Work
s
hop
was
app
r
i
s
ed
of
AC
A
O/I
C
A
O
eff
o
rts
to
res
o
l
v
e
the
i
s
s
u
e
of
freq
ue
n
cy
c
on
g
e
stio
n
inclu
ding
the
en
h
an
c
em
en
t
of
the
F
F
t
oo
l
.
The
W
ork
s
h
op
c
o
mmen
d
ed
ACAO
f
o
r
t
he
i
r
s
u
p
p
ort
to
resolve
s
u
ch
crit
i
c
a
l
o
peratio
n
a
l
matte
r
.
S
u
m
m
a
r
y
o
f
D
i
s
c
u
s
s
i
o
n
s
7
•
Th
e
W
orksh
o
p
received
u
p
date
from
IC
A
O
an
d
I
AT
A
on
the
potential
impact
o
f
5
G
issue
o
n R
a
d
i
o
A
l
timeter
.
•
The
W
orkshop
w
a
s
a
pprised
o
f
the
5
G
R
A
DA
L
T
act
i
on
group
act
i
vities
and
the
dra
f
t
g
uid
a
nce
materi
a
l
under
ICAO
M
ID,
w
i
th
the
p
artic
i
pation
o
f
Jord
a
n, Saudi Arabia,
UAE
, AC
A
O,
I
A
T
A
an
d
B
o
e
i
n
g
.
•
The
W
ork
s
hop
re
c
e
i
v
ed
a
n
up
d
ate
f
r
om
I
C
AO
o
n
the
WRC23 and agreed to conduct the WRC23 Preparatory
Workshop back to back with the coordination meeting with
the Arab Spectrum Management Group (ASMG), in Q1
2023 in Cairo, Egypt.
S
u
m
m
a
r
y
o
f
D
i
s
c
u
s
s
i
o
n
s
8
•
Th
e
W
ork
s
hop
agreed
tha
t
:
a)
the
Fre
q
u
en
c
y
Man
a
gement
W
orking
Gr
o
up
s
h
ou
l
d
further
r
e
view
and
a
me
n
d,
a
s
de
e
m
ne
c
e
s
s
ar
y
,
t
he
c
urrent
allotment
plan
to
increas
e
the
amo
u
nt
of
s
p
e
c
trum
that
c
a
n
be
us
e
d
for
A
TC
S
er
v
i
c
e
s
.
The
a
me
n
dm
ent
w
ould
inc
lude
current
s
ub
-
bands
that
are
not
allotted
and
band
that
is
currently
allotted
for
AO
C
.
b)
the
i
s
s
u
e
of
NDB
s
de
c
o
mmis
sioning
s
h
ou
l
d
be
ad
dres
s
e
d
in
the
C
NS
SG
/12
meeting
a
n
d
that
N
DB
s
h
ou
l
d
be
rat
i
on
a
l
i
s
e
d
b
as
ed
on
need
an
d
eq
u
ipag
e
.
R
e
c
o
m
m
e
n
d
a
t
i
o
n
s
9
c)
a
simulation
sho
u
ld
b
e
con
d
ucted
to
ass
e
ss
the con
g
esti
o
n
o
f
VH
F
COM
spectr
u
m
i
n
the
MID
R
e
gi
o
n. The
F
M
WG
may
consider
t
h
e
follo
w
i
n
g
measur
e
s
in
fu
t
ure
to
i
n
crease
the
VH
F
spectrum
ava
i
l
a
b
i
lit
y
:
-
amend
the
M
I
D
Region
allotment
plan
-
u
s
e
of
Sectori
z
ed
c
o
verage
-
u
s
e
of
8
.
33KHz
c
h
ann
e
l
s
p
a
c
ing
R
e
c
o
m
m
e
n
d
a
t
i
o
n
s
10
d)
e
nroute
D
ME
preferab
l
y
not
be
as
s
igned
frequ
e
nc
i
es
paired
with
ILS;
e) t
o
urge
S
t
ates
to
rec
on
sider
the
op
erat
i
on
a
l
need
of
high
ran
ge
(e
x.
D
M
E
300
N
M
);
f)
to
en
c
our
a
ge
St
ates
to
foster
their
c
o
op
erat
i
on
with
national
TRAs
related
to
Aviation
sp
e
ctrum
matters
;
g) States to ensure the implementation of necessary measures
to reduce the likelihood and impact of the GNSS interference.
f) ACAO to coordinate with the ASMG for the WRC23
preparatory meeting planned in Q1 2023.
R
e
c
o
m
m
e
n
d
a
t
i
o
n
s
11
•
The
W
ork
s
h
op
was
ap
pr
i
s
ed
of
pot
e
nt
i
al
interfe
r
en
c
e
betw
e
en
5
G
and
Ra
d
io
a
l
timeter
as
well
with
VS
A
T
in
the
MID
Reg
i
o
n,
a
c
cord
i
n
g
l
y
,
State
s
w
ere
invited
to
mon
i
tor
the
status
and
tak
e
necessary
a
ctio
n
s
as appropriate
.
R
e
c
o
m
m
e
n
d
a
t
i
o
n
s
11
Summary of discussions, history, and agenda of the successful ACAO/ICAO Frequency Management Workshop held in Casablanca, Morocco. The workshop covered topics like aeronautical frequency planning, using frequency finder tools, updating state frequencies, and addressing spectrum issues. Participants reviewed frequency coordination and protection, updated registered frequencies, discussed NDB decommissioning, and received updates on GNSS interference incidents in the MID Region."
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Presentation Transcript
ACAO/ICAO Frequency Management Workshop Summary of discussions Casablanca, Morocco 6-10/6/2022 1
History of the Workshop The ACAO/ICAO Frequency Management Workshop was successfully conducted 6-10 June 2022 in Casablanca, Morocco. The Workshop was attended by (25) participants from (8) States and four (4) Organizations (ACAO, GCC, IATA, and ICAO). 2
Agenda of the Workshop Agenda Item 1: Introduction Agenda Item 2:Aeronautical Frequency Planning - WRC Process - Explaining the planning criteria - Current MID frequency allotment plan - Amendment of the MID frequency allotment plan Agenda Item 3: Frequency Finder (FF) T ool - Frequency Finder T ool requirements, functions and installation Agenda Item 4: VHF COM Module -Performing Basic exercises (Scenarios prepared) -Updating the States frequencies in the Global database Agenda Item 5: VHF NAV Module -Performing Basic exercises (Scenarios prepared) -Updating the States frequencies in the Global database Agenda Item 6: Other Spectrum issues - GNSS Interference - 5G 3
Summary of Discussions The participants installed the frequency finder tool (FF T ool). latest version of the The Workshop provided hands-on training on the FF T ool functions on VHF COM and VHF NAV modules. The Workshop received update on the Handbook on Radio Frequency Spectrum Requirements for Civil Aviation (ICAO Doc 9718) including the frequency assignment planning criteria for VHF COM and VHF NAV. 4
Summary of Discussions The participants reviewed and updated their States registered frequencies for VHF COM highlighted that frequencies coordinated/registered would not be protected, therefore, States need to ensure that all operational frequencies are registered. and NAV modules. It was that are not The Workshop noted that in order to achieve international protection assignments need to be coordinated Regional Office. However, some national frequencies need to be coordinated as well if their operation impact adjacent States. from harmful interference, all frequency through the ICAO may 5
Summary of Discussions The related to the decommissioning of NDBs by 2012. The Workshop noted that around 150 NDBs are still in operation in the MID Region. workshop recalled MIDANPIRG/12 Conclusion The Workshop received update from IATA on the GNSS interference incidents in the MID Region. The Workshop noted the large number interference s hotspot and trend. of incidents reported, 6
Summary of Discussions The Workshop recalled the issue of frequency saturation for the VHF Navigational aids in the MID Region. It was reiterated that States should update the ICAO frequency Global database as a first step to minimize the saturation. The Workshop recalled that the MID Region agreed to reduce the channel spacing for VHF NAV (100 KHZ to 50 KHZ) and amend the MID Region Plan accordingly. The Workshop was apprised of ACAO/ICAO efforts to resolve the issue of frequency congestion including the enhancement of the FF tool. The Workshop commended ACAO for their support to resolve such critical operational matter. 7
Summary of Discussions The Workshop received update from ICAO and IATA on the potential impact of 5G issue on Radio Altimeter. The Workshop was apprised of group activities and the draft guidance material under ICAO MID, with the participation of Jordan, Saudi Arabia, UAE, ACAO, IATA and Boeing. the 5G RADALT action The Workshop received an update from ICAO on the WRC23 and agreed to conduct the WRC23 Preparatory Workshop back to back with the coordination meeting with the Arab Spectrum Management Group (ASMG), in Q1 2023 in Cairo, Egypt. 8
Recommendations The Workshop agreed that: a) the Frequency further review and amend, as deem necessary, the current allotment plan to increase the amount of spectrum that can be used for ATC Services. The amendment would include current sub-bands that are not allotted and band that is currently allotted forAOC. Management Working Group should b) the issue of NDBs decommissioning should be addressed in the CNS SG/12 meeting and that NDB should be rationalised based on need and equipage. 9
Recommendations c) a the congestion of VHF COM spectrum in the MID Region. The FM WG may measures in future to increase the VHF spectrum availability: - amend the MID Region allotment plan - use of Sectorized coverage - use of 8.33KHz channel spacing simulation should be conducted to assess consider the following 10
Recommendations d) enroute DME preferably not be assigned frequencies paired with ILS; e) to urge States to reconsider the operational need of high range (ex. DME 300 NM); f) to encourage States to foster their cooperation with national TRAs related to Aviation spectrum matters; g) States to ensure the implementation of necessary measures to reduce the likelihood and impact of the GNSS interference. f) ACAO to coordinate with the ASMG for the WRC23 preparatory meeting planned in Q1 2023. 11
Recommendations The Workshop was apprised of potential interference between 5G and Radio altimeter as well with VSAT in the MID Region, accordingly, States were invited to monitor the status and take necessary actions as appropriate. 11
