K-Band LNB

Model: LB-21A4021A65-1050D

INTERFACE

RF INPUT

Frequency	21.40 to 21.65 GHz
Connector	WR 42
Return Loss	> or = 20 dB into 50 Ohm
Power Level	Up to -6 dBm total power in-band

IF OUTPUT

Frequency	950 to 1200 MHz
Connector	50 Ohm N Female
Return Loss	> or = 20 dB into 50 Ohm
Power @ 1dB GCP	> or = +13 dBm
3rd Order Intercept	> or = +22 dBm
Spurious, Signal Related	-50 dBc max.
Spurious, Other	-80 dBm max. (including LO leakage)

EXTERNAL REFERENCE INPUT

Frequency	10 MHz
Connector	50 Ohm BNC Female
Power Level	-3 ± 3 dBm

REMOTE MONITOR AND CONTROL

Interface	Serial RS-422

POWER SUPPLY

Voltage	90 – 250 VAC
Frequency	47 – 63 Hz
Power Consumption	50 VA max.

PERFORMANCE

The redundant downconverter system provides a frequency translation of a K-band input to an L-band output. It features high linearity and low phase noise performance.

TRANSFER CHARACTERISTICS

Noise Figure	2.0 dB max, @ 23 °C Ambient
Gain Range	+50 ± 2 dB
Gain Stability	± 0.25 dB/24 hours
Gain Variation	1.0 dB ptp over temperature
Gain Flatness	2.0 dB ptp max. over the frequency bands specified 0.2 dB ptp over any 14 MHz 0.5 dB ptp over any 60 MHz
Image Rejection	60 dB min.
Group Delay Variation	1 ns ptp max. over bandwidth
Output SSB Phase Noise	-50 dBc/Hz @ 10 Hz -72 dBc/Hz @ 100 Hz -87 dBc/Hz @ 1 kHz -90 dBc/Hz @ 10 kHz -100 dBc/Hz @ 100 kHz -110 dBc/Hz @ 1 MHz
Additive Phase Jitter	0.75° RMS typ, 100Hz – 10MHz

INTERNAL REFERENCE CHARACTERISTICS

The downconverter automatically operates from its internal reference when the external reference is not present.

Frequency Stability	±2 x 10^-10 /day
Frequency Variation	±5 x 10^-8 over -30 to 60 °C

EXTERNAL REFERENCE REQUIREMENT

Input SSB Phase Noise	-120 dBc/Hz @ 10 Hz -140 dBc/Hz @ 100 Hz -145 dBc/Hz @ 1 kHz -150 dBc/Hz @ > or = 10 kHz

MECHANICAL

The redundant downconverter is suitable for indoor use. The unit is CE compliant.

Dimensions	TBD
Weight	30 lbs.

ENVIRONMENTAL

Operating Temperature	-20 to +45 °C Indoor
Non-Operating Temp.	-50 to +70 °C