Mocomtech CDM-570 - Manual (Page 168)

CDM-570/570L Satellite Modem with Optional IP Module Revision 4
Front Panel Operation MN/CDM570L.IOM
6–44
ODU status:
1) BUC PLL lock fault
2) BUC current out of limits
3) BUC voltage out of limits
4) LNB current out of limits
5) LNB voltage out of limits
6) BUC temperature alarm
7) BUC software checksum error
6.14.2 (MONIT) RX-PARAMS (Receive Parameters)
If the user selects Rx-Params, the following sub-menu is displayed:
If the demodulator is locked, this screen shows the following:
Eb/No
This shows the value of Eb/No calculated by the demodulator. The
value referred to here is the energy per information bit (Ebi), divided
by the noise spectral density (No).
BER This is an estimate of the corrected BER.
F
The frequency offset of the received carrier, in kHz, with a displayed
resolution of 100 Hz.
Buf
(Buffer fill state) This shows the fill state (in percent), of the receive
Buffer. After a reset, it will read 50. A value <50 indicates that the
buffer is emptying, and >50 indicates that it is filling.
RSL
(Receive Signal Level) A value in dBm, indicating the input power
of the desired carrier, as seen by the demodulator. If the signal level
is below the AGC range of the demod, this will display RSL <-99
If the demodulator is not locked, this screen shows the message ‘Demod: Not Locked’,
but continues to display the receive signal level. Pressing ENTER or CLEAR will take
the user back to the previous menu.
EbNo=05.7dB BER=3.4E-9
ΔF=+11.7k Buf=50 RSL=-64
Demod: Not Locked
RSL=-64