Raymarine Satellite TV Systems User Manual

Page 75

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71

Local oscillator frequency stability

+ 1.0 MHz @ 25

o

C

+ 2.0 MHz @ -40

o

C ~ 60

o

C

Local oscillator phase noise

-50 dBc/Hz @ 1 kHz
-75 dBc/Hz @ 10 kHz
-95 dBc/Hz @ 100 kHz

Conversion gain

50 dB (min), 60 dB (max)

Gain flatness

+ 0.5 dB/26 MHz

Cross polarization isolation

20 dB (min)

Image rejection

40 dB (min)

Output in band spurious

Output VWSR

2.5:1 (max)

Noise figure

0.8 dB typical - Low band
0.7 dB typical - High band

Output connector type

75 Ohm F-type female

Polarization switching voltage

10.5 V ~ 14.0 V @ VP
16.0 V ~ 19.0 V @ HP

DC current consumption

160 mA (max)

Band switching signal (DiSEqC 1.0
interface)

0 kHz - Low band
22 kHz + 4 kHz - High band

Universal Twin LNBF

Operating temperature range

-40

o

C ~ +60

o

C

Storage temperature range

-40

o

C ~ +80

o

C

Polarization modes

Linear vertical and horizontal

Dual LNBF (US models)

RF input frequency range

12.1 ~ 12.7 GHZ

IF output frequency range

950 ~ 1450 MHz

Local oscillator frequency stability

11250 + 4 MHz (max) over temper-
ature and life

Local oscillator jump @ 13/18 V
switching

2.5 KHz (max)

Local oscillator phase noise

-50 dBc/Hz @ 1 KHz maximum
-75 dBc/Hz @ 10 KHz maximum
-95 dBc/Hz @ 100 KHz maximum

Conversion gain

50 ~ 62 dB

Gain flatness

1 dB (max) @ 24 MHz intervals

Gain variation

5 dB (max) across 500 MHz

Cross polarization isolation

25 dB (min.)

Universal Twin LNBF

81258_3.book Page 71 Wednesday, November 8, 2006 2:06 PM

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