Alcad 912-uc Serie Manual De Instrucciones página 30

S. Check the quality of the satellite signal by measuring the BER (bit error
rate) with a field measurement for digital signals QPSK at the satellite
signal output (26) of the last unmixing processor. The BER measured
after error correction should be lower than 1E-8. If not, check the
installation and direction of the antenna and external LNB unit.
A. General signal quality problems
C. Poor quality of satellite signal received.
S. Check the quality of the satellite signal by measuring the BER (bit error
rate) with a field measurement for digital signals QPSK at the satellite
signal output (26) of the last unmixing processor. The BER measured
after error correction should be lower than 1E-8. If not, check the
installation and direction of the antenna and external LNB unit
A. Continuous problems in several modules.
C. Wrong module supply
S. Check the voltages in the last module using a voltmeter. If the voltages
are lower than the indicated ones, check that the supply cables are in
good shape and deeply plugged in.
OUTPUT
5 v
5 v
13 v
13 v
30 v
FA-203
Serie 912 - UC
912
Fig. 11 - Measuring voltage
ENG - 29
912
UC-202
5 v
V
DC