Another air-to-air ?

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ericcarlson

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Database Admin
Joined
Dec 18, 2002
Messages
1,540
Location
Houston, Texas
All the flight test freqs tend to have misc air-to-air usage. There's also 122.225, 136.975, 121.95. But any freq could be used. I hear unofficial air-to-air on random "company" freqs occasionally. Multicom/Unicom freqs can be air-air hangouts also if they're not assigned locally.
 

ATCTech

Active Member
Joined
Aug 13, 2002
Messages
1,507
136.975 is the global main frequency for VDL2 A/G datacom. Voice or other data usage would be frowned up.
 

spanky15805

Newbie
Joined
Sep 18, 2004
Messages
216
136.575​
136.600​
136.625​
136.650​
136.675​
136.700​
136.725​
136.750​
136.775​
136.800​
136.825​
136.850​
136.875​
136.900​
136.925​
136.950​
136.975​
Remarks​
Current situation
(Sept 2001)
ATS​
ATS​
ATS​
ATS​
ATS​
ATS​
ATS​
ATS​
ATS​
OPC​
OPC​
OPC​
OPC​
A
Sita​
A
Arinc​
M4(2)​
M2
(1)​
STEP 1
1/1/2003
ATS​
ATS​
ATS (4)​
ATS (4)​
ATS (4)​
-​
M4 (2)​
-​
ATS (4)​
OPC​
OPC​
OPC​
OPC​
A
Sita​
A
Arinc​
-
(3)​
M2​
VDL M 2 non protected (AOC)
VDL M 4 trials​
STEP 2
1/1/2004
ATS​
ATS​
ATS (4)​
ATS (4)​
ATS (4)​
-​
M4 (2)​
-​
ATS (4)​
OPC​
OPC​
OPC​
OPC​
A
Sita​
-​
-
(3)​
M2​
VDL M 2 ATS protected & AOC​
STEP 2
Fall back option
A Arinc
STEP 3
1/1/2005
ATS​
ATS​
ATS (4)​
ATS (4)​
ATS (4)​
-​
M4 (2)​
-​
ATS (4)​
OPC​
OPC​
OPC or A Arinc
OPC​
-
(3)​
M2​
-
(3)​
M2​
2nd VDL M 2 protected ATS & AOC​
STEP 4
Date tbd
ATS​
ATS​
ATS (4)​
ATS (4)​
ATS (4)​
-​
M4 (2)​
-​
ATS (4)​
-​
M2​
-
(3)​
M2​
-
(3)​
M2​
-
(3)​
M2​
3rd and 4th VDL M 2​
STEP 5
01/01/2010
option 1
ATS​
ATS​
ATS (4)​
ATS (4)​
ATS (4)​
-​
M4 (2)​
-​
M4​
-​
M2​
-
(3)​
M2​
-
(3)​
M2​
-
(3)​
M2​
Regional ADS VDL Mode 4 channel​
STEP 5
option 2
ATS
(4)​
ATS (4)​
-​
M4​
-
(3)​
-
(3)​
Experimental
Experimental, yearly renewable or to be finally assigned upon ADS/VDL Mode 4 endorsement decision
Feasibility of feeding with uplink services upon conditions to be investigated
Special measures (see annexe B) for ground scenario
M2: VDL Mode 2 M4: VDL Mode 4 A: ACARS OPC: Operational Airlines Communication ATS: ATS protected services
 
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