Norsat 5200-40W-STD Users Manual

Operating the GLOBETrekker SNG
Standard™ in Auto-Acquire Mode

111

Transmitting the Signal – Satellite Access Procedures

When the terminal is ready to transmit, the Transmit screen opens as shown in Figure

40. Before you can start transmitting you must call into the Satellite Operator to gain

access to the satellite. Follow the instructions of the Satellite Operator to avoid the risk
the possibility of fines.

Figure 40. Transmitting Screen

Note: If you need to stop your transmission at any time, click the Stop Transmitter

button at the bottom of the screen. If you are ready to end transmission, click
Finish button on the left side menu. The Finish Screen will open. Follow the
instructions.

Operating the GLOBETrekker SNG
Standard™ in Auto-Acquire Mode

112

The Call

The following screen in LinkControl will tell you when to call the Satellite Operator.
Satellite Operators generally advise you to call 10 to 15 minutes before the scheduled
transmission time. These screens will help walk you through the call with the Satellite
Operator.

Hint: Have the phone number for the Satellite Operator ready in advance. When you are ready to call,

click the Proceed button as shown in Figure 41.

1 You should:

i. Have a (mobile) telephone number where the Satellite Operator can reach

you;
ii. Identify yourself and provide your location;
iii. Indicate that you have scheduled satellite time;
iv. Indicate the purpose of your transmission (example: data transfer) / video

feed;
v. Indicate that you are ready to start transmitting on satellite, transponder and

frequency slot allocation (example: NSS7, Transponder K18, Slot C).

The Satellite Operator may in turn verify some parameters and ask some
questions. You should be able to find most of these answers without having to
resort to administrator mode.

Such parameters/ questions may include:

• Are you aligned and peaked on the satellite?

• Modem settings

• Confirm Uplink frequency and polarization

2 The Satellite Operator may then ask you to conduct a “cross-pol test”.

You may be asked for to bring up a “clean carrier” (or “unmodulated carrier” or
“continuous wave” or “CW”) at low power.

Operating the GLOBETrekker SNG
Standard™ in Auto-Acquire Mode

113

3 Click the CW box as shown in Step 2 of Figure 32 if you are asked to complete

this step. If he doesn’t ask you to complete this step but to simply proceed
directly to transmitting mode, click the No CW box.

Note: LinkControl will then guide you through the rest of the CW transmission
process.

Figure 41. Satellite Access Procedure Screen - CW

Operating the GLOBETrekker SNG
Standard™ in Auto-Acquire Mode

114

)

)

4 The Satellite Operator may then ask you to adjust your polarization. Select

the Change Pol box in Step 3. Link Control will then open the polarization

adjustment controls as shown in Figure 42. Use the Polarization control

buttons to adjust.

Figure 42. Satellite Access Procedure Screen – Change Polarization

Indicates Polarization controls (no user interaction

Placeholder button for Manual Mode; no user interaction

Nudge ± 0.2-0.3º

Stop adjusting

Continuous adjustment (medium speed)

Continuous adjustment (fast speed)

Operating the GLOBETrekker SNG
Standard™ in Auto-Acquire Mode

115

5 When you are finished with the polarization adjustment, or are not asked to

adjust your polarization, click Continue.

Hint: If you are asked to make an adjustment to your Transmit Frequency

before

screen which allows you to change the transmit frequency (Figure 43). Once

frequency adjustment completed you can go back and make your polarization

adjustment should the Satellite Operator ask you to do so.

6 You may be asked to change your transmit frequency. LinkControl will

present you with the Transmit Frequency display which you can change

with the “up” and “down” arrows, or type a value into the field, as shown in

Figure 43. When finished adjusting the frequency, click the Continue box.

Figure 43. Satellite Access Procedures – Change Transmit Frequency

your polarization, simply click Continue which brings you to the

Operating the GLOBETrekker SNG
Standard™ in Auto-Acquire Mode

116

7 The transmitter is now ready to be turned on. Click the Turn On box when

you are ready as shown in Figure 44 to power up your transmitter.

8 Once you click on the Turn On button, you are transmitting and are then

presented with the next screen to adjust your output power level as shown in

Figure 44.

Figure 44. Satellite Access Procedures – Turn on Transmitter and Adjust Output Power

9 The Satellite Operator may also ask you to adjust your power level. When

directed, slowly increase power to operating level and stop. Figure 44

displays the power control adjustment control in the lower part of the screen.

Operating the GLOBETrekker SNG
Standard™ in Auto-Acquire Mode

117

Hint: Under the guidance of the Satellite Operator, use the buttons to the left

of the Output Power display to adjust the power level in 1.0 dB steps and

use the buttons on the right of the Output Power display to adjust the power

in 0.1 dB steps. Watch the results in the Actual Power Output display area.

10 The Satellite Operator may ask you to re-adjust your polarization. If asked to

do so, click the Adjust Pol box as shown in Figure 44 (to open the

Polarization adjustment window, as shown in Figure 42); otherwise, click the

End Test box.

11 Once you have clicked the End Test box, see Figure 45. The system ends

the cross pol test, turns transmission off, and enables modulation.

Figure 45. Satellite Access Procedure Screen – End Test

Operating the GLOBETrekker SNG
Standard™ in Auto-Acquire Mode

118

12 LinkControl then proceeds to Step 10 which provides the interface to turn the

transmitter on only when instructed to do so by the Satellite Operator. Wait

for further instructions from the Satellite Operator while carrier specifications

are checked (typically, by the hub operator).

13 When directed, modulate the signal (start transmitting) by clicking the Yes

box as shown in Figure 46 Step 10. The Satellite Operator may then as you

to re-adjust your power (power adjustment will re-open – Figure 44). Wait for

further instructions from the Satellite Operator while carrier specifications are

re-checked. Follow his instructions and click Done when instructed to do so.

Figure 46. Satellite Access Procedure Screen - Transmitting

14 The Satellite Operator will verify your phone number and the end time for

your uplink. LinkControl will remind you to call the Satellite Operator again

just before the end of the uplink (the “Goodnight Call”).

Operating the GLOBETrekker SNG
Standard™ in Auto-Acquire Mode

119

Goodnight Call

The purpose of the Goodnight Call is to inform the Satellite Operator that you have
completed your transmission and that you wish to end your transmission.

1 When you are finished transmitting, contact the Satellite Operator to confirm the

end of your transmission. Then, click the Finished box in Figure 46.

2 You will then receive an End Transmission confirmation as shown in Step 1 of

Figure 47. Click the End Tx box to turn off the transmitter. LinkControl will
confirm that you are no longer transmitting (Step 2). If you intend to stow away
the system, click the Park Antenna button to return the antenna back to its
optimal tear-down position (0º Azimuth; 0 º Polarization; 10 º Elevation). Finally,

Note: When you click the End Tx box, both lock indicators, the Transmitter Off (previously

Figure 47. Satellite Access Procedure Screen – End Transmission

click the Exit Application button to close LinkControl.

Transmitting in red) and Stop Transmtr buttons will turn grey; the Pause Pointing, Park
Antenna, and Exit Application buttons will be blue; the DVB Lock and System OK buttons
should remain green.