Parameter	Specification	Remarks
Input Frequency?	12.75 GHz - 13.5 GHz	Extended Ku-band segment, suitable for high-throughput satellites
Local Oscillator (LO) Frequency?	11.8 GHz / 11.3 GHz (Mainstream)	11.8 GHz for full 12.75–13.5 GHz band; 11.3 GHz for 12.75–13.0 GHz
Output Frequency?	950–2200 MHz (11.8 GHz LO) 1450–2200 MHz (11.3 GHz LO)	Standard L-band, compatible with most receivers
Noise Figure (NF)?	Typical 0.6–0.8 dB, max 1.0 dB	Communication-grade ≤0.6 dB for higher weak-signal sensitivity
LO Stability (PLL)?	±3 kHz–±10 kHz (room temp.) ±25 kHz (-40℃ to 60℃)	Prevents frequency drift; preferred for professional applications
Conversion Gain?	Typical 55–60 dB, min 52 dB, max 65 dB	Ensures signal is amplified to a processable level for the receiver
Gain Flatness?	≤3 dB (full band)	Reduces signal distortion and improves data transmission stability
Input / Output VSWR?	Input ≤2.2:1; Output ≤2.0:1	Minimizes reflection loss and optimizes signal matching
Phase Noise?	@1 kHz: -70 dBc/Hz @10 kHz: -85 dBc/Hz @100 kHz: -95 dBc/Hz	Affects carrier phase accuracy; stricter requirements for comms-grade
Output P1dB?	≥ 5 dBm	Keeps nonlinear distortion under control
Polarization?	Linear (V/H) / Circular	Selected via 13V/18V supply voltage
Power Supply?	12–24 VDC, current ≤300 mA	Compatible with standard satellite receiver power supply
Operating Temperature?	-40℃ to 60℃	Meets outdoor installation requirements
Output Interface?	F-type (75 Ω, broadcast) / N-type (50 Ω, communications)	Choose based on system impedance

Key Technical Features

LO & Frequency Conversion
- LO 11.8 GHz: Full 12.75–13.5 GHz input to 950–2200 MHz output.
- LO 11.3 GHz: For 12.75–13.0 GHz input, output is 1450–1700 MHz.
- LO Control: Supports 22 kHz tone switching (dual-LO models) and 13V/18V polarization control.
Noise & Linearity
- NF: Affects sensitivity; comms-grade LNBs target ≤0.6 dB.
- Phase Noise: Should be ≤-70 dBc/Hz @1 kHz to avoid carrier sync interference.
Interference Resistance & Reliability
- 5G Filtering: Many models (e.g., from Shenzhen Huashi Digital, Sinporun) integrate filters to suppress 3.5/4.9 GHz 5G interference.
- Rugged Design: Features a wide operating temperature range and waterproof housing for harsh outdoor conditions.

?Selection & Application Guide

Application Matching
- Satcom / VSAT: Choose 11.8 GHz LO, NF ≤0.6 dB, and ±3 kHz PLL stability for high-speed data.
- Broadcast Reception: 11.3 GHz LO and NF ≤0.8 dB are sufficient, offering a lower cost.
Interface & Impedance
- Use F-type? connectors for 75 Ω systems and N-type? for 50 Ω communication systems to prevent mismatch loss.
Customization Options
- Dual-LO (11.3/11.8 GHz) and external 10 MHz reference inputs are available to achieve ±1 kHz stability.