Specifications

EASTAR UHP-1000 SERIES SATELLITE ROUTER

INSTALLATION AND OPERATION MANUAL, V. 2.3

(SW VERSION 2.2.9)

 Start moving antenna slowly in limited angle of elevation and azimuth. The value of

the demodulator input level increases when antenna receives signal from any

satellite. Signal peak means proper pointing to the satellite.

 After finding the peak of this signal by adjusting the azimuth and elevation, it is

necessary to provide demodulator some time to search for and capture the carrier

from the Hub. Search for the carrier with symbol rate of 250 ksps in the band of

3000 kHz (slowest case) may take about 30 seconds. If demodulator is unable to

lock on a carrier for a long time it may mean that antenna is pointed to a wrong

satellite and it’s necessary to continue moving the antenna in search for another

satellite.

 When demodulator locks on the carrier the router begin to show actual Eb/No level,

the maximum of which is necessary to achieve by fine tuning the azimuth and

elevation of the antenna.

 Once the satellite is found, it is necessary to tune the polarization angle in

accordance with the procedures applicable to this satellite. Afterwards, the terminal

may get a permission to start transmission. (see Section 2.7).

 You can reduce demodulator’s scanning time by adjusting the frequency shift and

narrowing the search range as outlined in the Section 2.5.5.

2.10.1 Pointing with HTTP assistance

―Pointing‖ window of the router displays information about the quality of signal reception

(Figure 22) and simplifies the procedure of an antenna pointing.

Figure 22 HTTP Information about the quality of signal reception

The information about demodulator’s quality of reception is displayed in the graphical and

textual form. Search phase is also shown below when demodulator is unlocked. Please allow

demodulator to pass all search cycle before changing azimuth and/or elevation angle. When

demodulator locks on the carrier textual and graphical information about level Eb/No will

replace the information about search phase. Proceed with fine-tuning of antenna azimuth

and elevation until a maximum of Eb/No level is achieved.

2.10.2 Pointing via management console

Pointing assistance via console is activated by ―demodulator antenna‖ command. When such

mode is active the console will display a string with actual information which is updated two

times per second.

If there is no reception of the carrier yet, the string looks like this:

EASTAR # de an

RFlvl Max Min State Eb/N0 Max Min Q-quit

-45.1 -44.7 -45.1 Search-12% 4.1 4.1 4.1

When the demodulator is locked on the carrier the string looks like this: