1.2-1.3GHz LNB 低噪声下变频器 降频器 高频头

Frequency Step

1 kHz

Gain

≥ 30 dB

Gain Flatness

±1.0 dB / 36 MHz

Gain Stability

±0.25 dB/day (constant temperature)
±1.5 dB (0 °C to +50 °C)

Attenuation Control

0–30 dB, step 0.5 dB

Third-Order Intermodulation

-40 dBc @ (P1dB - 10) dB, Δf = 5 MHz

Image Rejection

≥ 80 dBc (downconversion only)

Local Oscillator Leakage

≤ -70 dBm (RF port)

Spurious Output

≤ -60 dBc (carrier-related spurious)
≤ -60 dBm (carrier-unrelated spurious)

Reference Clock

External 10 MHz reference, 0 ±3 dBm (preferred);
Internal/external reference auto-switching supported

Phase Noise

-80 dBc/Hz @ 100 Hz
-85 dBc/Hz @ 1 kHz
-90 dBc/Hz @ 10 kHz
-100 dBc/Hz @ 100 kHz

VSWR

1.35:1

RF Interface

SMA-50K (N-50K optional)

IF Interface

SMA-50K (N-50K optional)

External Reference Interface

BNC-50K

Control Interface

RJ-45 (Ethernet);
DB-9S (female) for RS-232/RS-422/RS-485 (DB-9P male optional)

Power Interface

IEC-320 C14

Operating Temperature

0 °C to +50 °C

Storage Temperature

-30 °C to +70 °C

Dimensions

19-inch rack, 1U height

Weight

Approx. 6 kg

Power Supply

AC 220 V, 50 Hz

Power Consumption

40 W (typical)