Rover ST2 - Page 40

pag. 40
ST2 User’s Manual
Satellite Mode
continue: SATELLITE SIGNAL MEASUREMENTS: MEAS
fi g. 15.3 The second measurement level provides the Noise Margin and the MER (modulation
error) measurements with the relevant graphic bars. The instruments supplies both the EVM mea-
surement and the quality analysis (PASS, MARGINAL, FAIL).
Press the
15.2 Noise Margin, Quality, MER and SNR measurements
key again to display the second measurement level:
Memory Plan (Ref. section 11.0)
Active Memory Plan transponder or Pro-
gramme number (Ref. section 11.0)
NOTE
There are variable fi elds
in this measurement level:
Memory Plan, Transponder or
Programme number and Fre-
quency.
fi g. 15.4 The third measurement level provides the BER (Bit Error Rate) before and after error
correction. The aBER (post Viterbi) shows a value of “<10
-8
“ for signals that may be considered as
error free after the error correction process.
15.3 BER before and after error correction
Memory Plan (Ref. section 11.0)
Transponder Frequency: MW o IF
Active Memory Plan transponder or Pro-
gramme number (Ref. section 11.0)
NOTE
There are variable fi elds
in this measurement level:
Memory Plan, Transponder or
Programme number and Fre-
quency.
Transponder Frequency: MW o IF
Press the
key again to display the third measurement level: