Raymarine Satellite TV Systems, Руководство пользователя

Страница: 75 / 78

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