22
UniCable LNB Functions (Satellite)
When a UniCable LNB is first connected, there will be no signal. This is because in the
Spectrum mode, no UniCable commands are issued. Command the UniCable LNB by
switching to the Digital mode and back to the Spectrum mode and it will show a
spectrum. (Turning on and off the LNB 13/18 or the LNB 22kHz will also command a
UniCable frequency.) The span of the spectrum can be set to either 250MHz or
1231MHz (the maximum or minimum) by pressing the keypad ‘Span’. The Marker
frequency shows the IF frequency of the User Band. The translated UniCable signal will
be at the chosen User Band and about 100MHz wide. For the UniCable LNB, the LNB
13V/18V and the LNB 22kHz signal represent the Polarisation and the Band and are not
sent to the UniCable LNB. In the Digital mode, the frequency shown is the UniCable
commanded frequency.
Remember that the displayed UniCable band is reflected in frequency about the User
Band frequency as shown in the example below. For more details see Appendix D.
10906 MHz
10878 MHz
10936 MHz
User Band 1