4.  Project Technical Specification

The specific technical specification for this multifunction satellite have not decided yet. There are two options, first build new satellites and rent the satellites. However, to optimize plan band. There are specification that must be concerned.

No

DESCRIPTIPTION

C-BAND

Ku-BAND

1.

Uplink frequency band (MHz)

6,725-7,025

12,750-13,250

2.

Downlink frequency band (MHz)

4,500-4,800

10,700-10,950 dan 11,200-11,450

3.

Antenna size (m)

5.5

2.7

4.

Tx antenna gain (dBi)

50.4

49.8

5.

Network availability (%)

99.95

99.9

6.

C/N uplink (dB)

21

21

7.

C/N downlink (dB)

15

15

8.

Minimum elevation angle (deg)

40

40

9.

Type of modulation

Any

Any

10.

Rx ES system noise temp (K)

95

125

11.

ES antenna efficiency (%)

70

70

12

Rx SS system noise temp (K)

500

550

13.

Min beamwidth (deg)

1.6

0.8

14.

SS antenna efficiency

55

55

15.

Downlink pfd limits (dB(W/(m2.MHz))

-127.5

-114

16.

Uplink pfd limits (dB(W/m2.MHz))

-140

-133

17.

ES EIRP density (dBW/Hz)

1.8
(Equivalent 64.8 dBW/2 MHz)

13.7
(Equivalent 76.7 dBW/2 MHz)

18.

SS EIRP density (dBW/Hz)

-38.6
(Equivalent 37 dBW/36 MHz)

-22
(Equivalent 53.2 dBW/36 MHz)