The signal provided by AMSAT DL from Bochum transmitting on 10368.500 with linear vertical polarisation using the 20m antenna. The power level started at 800W but dropped to 700W after the system warmed up (about 5 minutes) and remained at approximately that level for the remainder of the test session.
These files recorded at G4NNS
RX antenna vertical.
RX antenna offset by 10 degrees from vertical
RX antenna offset by 20 degrees from vertical
RX antenna offset by 30 degrees from vertical
RX antenna offset by 40 degrees from vertical
RX antenna offset by 50 degrees from vertical
RX antenna offset by 60 degrees from vertical
RX antenna offset by 70 degrees from vertical
RX antenna offset by 80 degrees from vertical
RX antenna offset by 90 degrees from vertical
RX antenna offset by 100 degrees from vertical
For a quick demonstration the above files have been edited together with about 10 seconds for each 10 degree step from 0 - 90 degrees:-
10 degree steps
All files are about 200KB except the last one which is about is 2.4MB
Plot provided by Luis CT1DMK
These files recorded at OK1KIR
These files recorded at OK1KIR more data to follow
RX antenna vertical.
RX antenna offset 10 degrees from vertical.
RX antenna offset 20 degrees from vertical.
RX antenna offset 30 degrees from vertical.
RX antenna offset 40 degrees from vertical.
RX antenna offset 50 degrees from vertical.
RX antenna offset 60 degrees from vertical.
RX antenna offset 70 degrees from vertical.
RX antenna offset 80 degrees from vertical.
RX antenna offset 90 degrees from vertical.
For a quick demonstration the above files have been edited together with about 10 seconds for each 10 degree step from 0 - 90 degrees:-
10 degree steps
All files are about 200KB except the last one which is about is 2.4MB
The next two files illustrate the point at which offset becomes significant (~45 degrees) :-
5 seconds of zero offset 5 seconds of 30 degree offset - repeated - total 20 seconds
Not much change ! with 30 degree offset.
5 seconds of zero offset 5 seconds of 50 degree offset - repeated - total 20 seconds
A significant change in level ! These files approx 1.8MB
Tests with IQ4DF 28/04/2006 as recorded at G4NNS:-
RX antenna vertical.
RX antenna offset 10 degrees from vertical.
RX antenna offset 20 degrees from vertical.
RX antenna offset 30 degrees from vertical.
RX antenna offset 40 degrees from vertical.
RX antenna offset 50 degrees from vertical.
RX antenna offset 60 degrees from vertical.
RX antenna offset 70 degrees from vertical.
RX antenna offset 80 degrees from vertical.
RX antenna offset 90 degrees from vertical.
These files are about 200KB
Tests with IQ4DF 28/04/2006 as recorded at OK1KIR:-
Edited file with 10 seconds for each 10 degree step from 0 - 90 degrees:-
10 degree steps
Edited file with 10 seconds of zero offset and 10 seconds of 90 degree offset
Zero offset - 90 degree offset
Recordings of 3,4GHz EME Polarisation tests made by G4NNS and OK1KIR July 2007
These files recorded at G4NNS
Edited file with 10 seconds for each 10 degree step from 0 - 90 degrees:-
10 degree steps
Edited file with 10 seconds of zero offset and 10 seconds of 90 degree offset repeated 3 times.
Zero offset - 90 degree offset
G4NNS Signals received by OK1KIR starting with 90 degree offset reducing in 10 degree steps every 10 seconds to zero offset.
Zero offset - 90 degree offset
To download...right click on link and "Save As"
The files should then be playable on sound recorder, media player or Spectran.
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