All,

Dave Larsen posted the e-mail, below on the upcoming spacewalk.  The plan 
is to deploy the last two ISS Ham radio antennas (WA1 and WA2) during the 
August 26 EVA.  The antennas will be installed along the perimeter of the 
aft end of the service module, closest to the Soyuz docking port.  WA1 will 
be located at the 8 O'clock position and WA2 will be located at the 4 
o'clock position.  FYI, 6 O'clock is down (Earth Pointing) and 12 O'clock 
is up.

The EVA to deploy these is planned to start around 5:02 UTC on August 
26.   You can watch the EVA on NASA TV.  The tentative schedule has the WA1 
antenna deployment occurring at 8:41 UTC and the WA2 antenna deployment 
occurring at 9:12 UTC.

A picture of all four antennas prior to shipment is shown at:

http://www.amsat.org/amsat/ariss/4antennas.jpg

(216k file)

FYI, on-orbit photo of the WA4 antenna prior to deployment is shown at:

http://www.amsat.org/amsat/ariss/WA4_on_ISS.jpg

(92k file)

We have uploaded two on-orbit photos of the WA3 antenna, shown at the 10 
O'clock position on the aft end of the service module.  These are located at:

http://www.amsat.org/amsat/ariss/WA3_antenna.jpg

(181k file)

http://www.amsat.org/amsat/ariss/sts110_717_085_cropped.jpg

(174k file)

The following paper has some great pictures and diagrams which depict the 
entire ISS Ham system, including the antenna systems.  This paper is 
probably big for some that have low bandwidth internet capabilities.  The 
file is about 800K.

http://ariss.gsfc.nasa.gov/EVAs/amsat01.pdf

The ARISS-U.S. team is working with our Russian counterpart, Sergej 
Samburov, RV3DRto support this EVA.  The U.S. team will be supporting this 
EVA from the control centers at the Johnson Space Center in Houston, Texas 
and the Goddard Space Flight Center in Greenbelt, Maryland.  The Russian 
team will be supporting this at the TSUP (Mission Control Center) in 
Korolev (Moscow area).