View Full Version : Looking for LNB Information
trinidex
July 16th, 2004, 01:36 AM
I'm looking for technical information on the types of LNB used for the following systems, and despite my efforts, I have failed. Can someone please help?
I would like to know: LNB Frequenices (input/output), polarity type and polarity switching type (volts/tone) for the following:
DirecTV USA
DISHNetwork USA
DirecTV Latin America
Thanks in advance
RiseStar
July 16th, 2004, 09:44 PM
Is this what you are looking for?
Dual Output LNBF
BSS Dual Output LNBF- SF2-D3G
Item Specification
Frequency High Band: 12.20 ~ 12.70 GHz
L.O. Frequency 11.25 GHz
L.O. Frequency Stability 11250+/-4.0MHz (MAX.), over temp. and life
Output Frequency Range 950 ~ 1450 MHz
Noise Figure 1.1 dB (MAX.)
Coversion Gain 50 dB (MIN.), 62 dB (MAX.)
Gain Flatness 1 dB (MAX.)/ 24 MHz intervals
Gain Variation 5 dB( MAX.) across 500 MHz
L.O. Phase Noise
-50 dBc/ Hz @ 1 KHz
-75 dBc/ Hz @ 10 KHz
-95 dBc/ Hz @ 100KHz
L.O. Jump at 13/18V Switching 2.5 KHz (MAX.)
Cross Pol. Isolation 25 dB (MIN.)
Po 1 dB 0 dBm(MIN.)
Output VSWR 2.0:1 (MAX.) in a 75 W system
3rd Order Intercept Output -50 dBc (MAX.), two tones of -15 dBm output spaced 27 MHz
DC Current Consumption 180 mA (MAX.)
Pol. Switching Voltage
10.5 ~ 14.0 V at RHCP
15.0 ~ 21.0 V at LHCP
Image Rejection 40 dB (MIN.)
Operation Temperature -35deg C ~ + 52deg C
Single Output LNBF
2.2 FSS Single Output LNBF- FE4
Item Specification
Frequency High Band: 11.70~ 12.25 GHz
L.O. Frequency 10.75 GHz
L.O. Frequency Stability
+/-1.0MHz (MAX.), @ +25deg C
+/-2.0 MHz (MAX.), @ -40deg C ~ +60deg C
Output Frequency Range 950 ~ 1500 MHz
Noise Figure 1.1 dB (MAX.)
Coversion Gain 50 dB (MIN.), 63 dB (MAX.)
Gain Flatness +/-0.5 dB / 26 MHz
Max. in Band Spurious Level -65 dBm
L.O. Phase Noise
-50 dBc/ Hz @ 1 KHz
-75 dBc/ Hz @ 10 KHz
-95 dBc/ Hz @ 100KHz
Low/ High Bans Switching 0/22 KHz
Cross Pol. Isolation 20 dB (MIN.)
Output Power 0 dBm(At 1 dB Gain Compresion)
Output VSWR 2.5:1
3rd Order Intercept Output -15 dBm
DC Current Consumption 120 mA (MAX.)
Pol. Switching Voltage
Vertical @ 12.0 ~ 14.0 V
Horizontal @ 16.0 ~ 20.0 V
Image Rejection 40 dB (MIN.)
Operation Temperature -40deg C~ + 60deg C
Output Connector F-Type (female),
trinidex
August 1st, 2004, 10:52 AM
Thanks for info! - great stuff
I'm still looking for info on the LNB used for DirecTV Latin America...
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