The signal level will increase on the signal bar if any satellite signal is detected. If the
beeper is enabled, then the pitch of the beeper will increase with signal strength. Once
the instrument locks on a satellite transponder, the display is changed to include SNR
(signal to noise ratio) and BER (bit error rate) bars and numeric values.
Once “Locked” on a signal, the satellite is confirmed with the MPEG data stream using
the TSID and ONID (transport stream ID and Original Network ID) for the chosen
transponder
The sequence of steps in locking are:
• “Locked” is displayed and the SNR/Quality bars are shown.
• “Identified OK” is displayed if TSID and ONID from transponder match for the
desired satellite.
If the ONID and TSID do not match, then “Wrong Satellite” is displayed alternating with
the actual ONID and TSID found for this transponder. If the TSID in the satellite file is
zero, then a match is made without the TSID. When the ONID and TSID to match
from the satellite file are both zero, then the actual ONID and TSID are displayed.
Once the correct satellite is found, then the dish can be “peaked” using the SNR bar
and the BER bar for reference. The SNR should be as high as possible, and the BER
bar should be as high as possible. (The BER value should be as low as possible – the
BER bar is shown in reverse for ease in maximising the signal.) If the beeper is
enabled, when a signal is locked, the pitch of the signal is reporting the SNR.
The RF thermometer behaves differently once a signal is locked. After lock, the RF
value is set to 75 and differences to the RF value are shown. This permits accurate
relative RF measurements used for dithering as the instrument is very sensitive to
small changes in RF level. If the RF Level goes to the maximum of 99, press OK, OK
to reset this new maximum RF level at 75 and continue peaking.
BER Bar
SNR Bar
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