Hughes DIRECWAY DW4020 User Manual

2. At the 

 prompt, enter 

 to obtain antenna 

pointing values and assigned satellite parameters. The 

 screen in Figure 82 appears.

The SQF represents the strength of the received signal 
relative to noise. SQF is an integer value between 0 and 99. 
The SQF value is interpreted as follows:
– 0-29. The receive modem is not locked onto the desired 

signal. The value increases as the Gateway receives 
stronger signal power.

– 31-99. The receive modem is locked onto the desired 

satellite signal.

– 30. The receive modem is locked onto a satellite signal, but 

is waiting for a message confirming that it is locked to the 
correct signal. An unchangeable value of 30 indicates that 
the receive modem is locked onto a wrong signal.

3. If the SQF is less than 30, refine the antenna pointing to bring 

the SQF over 40 and to as close to 99 as possible. The SQF 
message updates automatically. There is a delay of up to 10 
seconds between the displayed and the current SQF value.

4. If you cannot achieve a satisfactory SQF, take the steps below 

in the order suggested until the situation is corrected.
a. Check for unobstructed view to the satellite.
b. Refine antenna aiming.
c. Check LNB polarization.
d. Check receive symbol rate.
e. Replace LNB.
f. Replace entire DW4020 unit.

Figure 82: Antenna Pointing - Receiver