EHAM 24-10-07
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sfeyenoord1
- Scramble Addict
- Posts: 1567
- Joined: 05 Mar 2006, 17:40
- Type of spotter: An enjoying one
- Location: Boskoop (Zuid-Holland, Nederland)
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Canberra TT.18
- Scramble Addict
- Posts: 1066
- Joined: 23 Jun 2003, 21:55
- Type of spotter: S4
- Location: Beuningen (Gld)
Hello,
Bunp is for communiction with satellites (I believe).
E-4 is used as Airborne Command Centre (in times of crises), lately they are used to transport the Sec. of Defence around (looks like some sort VIP-role), although you could think as the USA in crises in Iraq and Afganistan, they need good communciatiosn with Sec. of Defence at all times. Probably that is why they use the E4's more often for VIP-flight , they are much more suffisticated then the C-32 which are normally used.
Bye,
Peiter
Bunp is for communiction with satellites (I believe).
E-4 is used as Airborne Command Centre (in times of crises), lately they are used to transport the Sec. of Defence around (looks like some sort VIP-role), although you could think as the USA in crises in Iraq and Afganistan, they need good communciatiosn with Sec. of Defence at all times. Probably that is why they use the E4's more often for VIP-flight , they are much more suffisticated then the C-32 which are normally used.
Bye,
Peiter
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See http://www.scramble.nl/forum/viewtopic. ... 59&start=0" onclick="window.open(this.href);return false;
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The "hump" or the mini-radome houses the EHF Milstar SATCOM , UHF SATCOM radio with full duplex voice COMM and the E-4B’s superhigh frequency (SHF) frequency division multiple access (FDMA) communications antenna, the only such system on an airborne platform.
Further COMM capabilities:
UHF Command & Control
MF Radio
VHF FM
GFE/CFE
STU-III/R
ACP (HF)
Liaison (HF)
C3 UHF Radios
INMARSAT
Global Air Traffic Management (GATM II)
And one of the most important COMM capability is the Senior Leaders Communication System (SLCS ) / Direct Broadcast Service plus access to Defense Information System Network and Public Switch Network for voice, video and data exchange on and off the airplane.
Further COMM capabilities:
UHF Command & Control
MF Radio
VHF FM
GFE/CFE
STU-III/R
ACP (HF)
Liaison (HF)
C3 UHF Radios
INMARSAT
Global Air Traffic Management (GATM II)
And one of the most important COMM capability is the Senior Leaders Communication System (SLCS ) / Direct Broadcast Service plus access to Defense Information System Network and Public Switch Network for voice, video and data exchange on and off the airplane.
Last edited by tva2 on 25 Oct 2007, 22:32, edited 1 time in total.
Groeten
Tim Voerman
Tim Voerman
So you might think that the USAF E-4B is the only 747 airplane equipped with EHF, UHF SATCOM Radome "hump" similar in size and dimensions?
You will be amazed....
http://cdn-www.airliners.net/photos/pho ... 151152.jpg" onclick="window.open(this.href);return false;
detail , it is NOT functionally equal to the E-4B's COMMS capability. Remember that the VC-25A and E-4B does not have "shared"-technology when it comes to advanced communications capability in comparison with other countries.
You will be amazed....
http://cdn-www.airliners.net/photos/pho ... 151152.jpg" onclick="window.open(this.href);return false;
detail , it is NOT functionally equal to the E-4B's COMMS capability. Remember that the VC-25A and E-4B does not have "shared"-technology when it comes to advanced communications capability in comparison with other countries.
Groeten
Tim Voerman
Tim Voerman