Some spectrogrammes
Sven Grahn
Odin
”HEO zoo” on 2242.5 MHz
I set the
software-defined radio so that one screen would display a whole night’s worth
of data on 2242.5 MHz. Strange shapes showed up!
Unknowns on 2282.5 MHz
The first
two below display a strange change in Doppler rate just after AOS, which seems
to be after closest approach! The third one looks “normal”
Sar-Lupe-3
Picked up
the strong signals easily on 2 November 2007 at 1627 UT.
IRS-P6
Picked up on
2250.0 MHz at 1027 UT 3 Nov 2007.
Proba-1
Picked up
on 2235.0 MHz at 0956 UT on 5 November 2007
