Archive - Feb 29, 2012

Columbus patch antennas position!!

During the last few days while I was trying UHF Packet on the international space station .I noticed several time a sudden dip in the signal strength and loss in connection with packet system. ISS elevation was reasonable and the signal strength on the VHF packet system was strong!
I’m thinking of 3 cases:
1- The patch antennas position!
(The patch antennas are fixed on the Meteorite Debris Panels (MDP) protecting the hull of Columbus. On the port cone of the module, where it attaches to the ISS )
http://www.ariss-eu.org/columbus.htm
2- Radio and power used!
3- Doppler Effect!

st2nh – Wed, 2012 – 02 – 29 19:11

ISS Radio Report 33399

Date/Time: 
2 years 7 weeks ago
Mode: 
PACKET
Status: 
ACTIVE
Description: 
Both VHF & UHF worked same pass.
st2nh – Wed, 2012 – 02 – 29 15:20

ISS Radio Report

Date/Time: 
2 years 7 weeks ago
Mode: 
PACKET
Status: 
ACTIVE
Description: 
Very strong signal on packet downlink.
kj4sds – Wed, 2012 – 02 – 29 14:48

ISS Radio Report

Date/Time: 
2 years 7 weeks ago
Mode: 
PACKET
Status: 
ACTIVE