Name: Ka-Band Single LNB 19.7-20.2GHz Low Noise Block with Linear & Circular Polarization and 1.2dB Noise Figure
Brand: Chenzhou Seton Technology Co., Ltd
SKU: Одиночный LNB KA-диапазона
Availability: InStock

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Ka-Band Single LNB 19.7-20.2GHz Low Noise Block with Linear & Circular Polarization and 1.2dB Noise Figure

19.7-20.2GHz Ka-Band Single LNB

Linear & Circular Polarization Low Noise Block

1.2dB Noise Figure Satellite LNB

Место происхождения:

Китай

Фирменное наименование:

SETON

Сертификация:

CE, ISO, RoHS

Номер модели:

Одиночный LNB KA-диапазона

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Спросите цитату

Детали продукта

Диапазон входных частот:

19,7 ГГц ~ 20,2 ГГц

Диапазон выходной частоты:

950 МГц ~ 1450 МГц

Частота гетеродина:

21.15 ГГц

Коэффициент шума:

1,2 дБ (тип.)/ 1,8 дБ (макс.)

Прибыль от конверсии:

55db ~ 65 дБ/ 60 дБ (тип.)

Выделить:

19.7-20.2GHz Ka-Band Single LNB

Linear & Circular Polarization Low Noise Block

1.2dB Noise Figure Satellite LNB

Условия оплаты & доставки

Количество мин заказа

1000 шт.

Упаковывая детали

КОРОБКА

Время доставки

30-35 дней

Условия оплаты

Т/Т, Вестерн Юнион

Поставка способности

15 миллионов штук

СОБЩЕННЫЕ ПРОДУКТЫ

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11,7 ГГц - 12,75 ГГц Ku-диапазон Однополярный LNBF ST-K21WS 10,75 ГГц с низким уровнем шума

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ST-K21WD универсальный однолинейный LNBF - Ku-диапазон, двойной LO 9,75/10,6 ГГц, поляризация V/H

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Свяжитесь мы

86-0735-8888458

huang@setontech.cn

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Характер продукции

Ka-Band Single LNB 19.7-20.2GHz

Product Overview

This KA-Band Single LNB operates at 19.7~20.2 GHz with customizable frequency design options. It supports both linear (Vertical/Horizontal) and circular (Left-hand/Right-hand) polarization.

In today's rapidly evolving satellite communications landscape, the Ka-band has become the core frequency band for High-Throughput Satellites (HTS), VSAT networks, and military communications. Our professional-grade Ka-band Single LNB, featuring advanced PLL (Phase-Locked Loop) technology, delivers exceptional signal reception performance and unparalleled stability for your satellite communication systems.

Whether it's broadband access in remote areas, maritime/airborne mobile communications, or encrypted data transmission for government agencies, this LNB is designed to handle the most demanding applications.

Core Technical Specifications

Parameter	Specification	Technical Advantage
Receive Frequency Range	19.7 - 20.2 GHz	Covers mainstream Ka-band downlink frequencies, compatible with most global HTS satellites
Local Oscillator Frequency	21.15GHz (Customizable)	Precisely matched to satellite frequency plans
Output Frequency	950 - 1450 MHz (L-band)	Standard interface, compatible with major satellite modems
LO Stability	PLL, ±10 kHz (with external 10MHz reference)	Ultra-low phase noise, meets DVB-S2X high-order modulation requirements
Noise Figure	As low as 1.2 dB (typical)	Exceptional weak signal capture capability, enhances link margin
Input Interface	WR-42 Waveguide Flange	Professional interface, minimal insertion loss, ideal for high-frequency signal transmission
Output Interface	N-type Female (or SMA optional)	Rugged and durable, suitable for harsh outdoor environments
Operating Temperature	-30°C ~ +60°C	All-weather reliable operation, adapts to extreme climates
Protection Rating	IP67 Dust/Water Resistant	Sealed housing design, impervious to wind and rain

Detailed Technical Specifications

Parameter	Specification
Input Frequency Range	19.7GHz ~ 20.2GHz
Output Frequency Range	950MHz ~ 1450MHz
LO frequency	21.15GHz
Noise Figure	1.2dB (Typ.)/ 1.8dB (Max.)
LO Initial Accuracy	0.5MHz
LO Temperature Drift (-30~+60℃)	0.75MHz
LO phase noise @ 1 KHz	-60dBc/Hz
LO phase noise @ 10 KHz	-80dBc/Hz
LO phase noise @ 100 KHz	-90dBc/Hz
Conversion Gain	55dB~65dB/ 60dB (Typ.)
Gain Flatness	2.5dB (Max.)
Gain Variation	0.5dB/26 MHz
O/P 1dB Compression Point (P1 dB)	3.0dBm (Min.)
Image-Rejection	-40dBc (Min.)
Crosstalk Isolation	20dB (Min.) 22dB (Typ.)
O/P VSWR	2.5:1
Control Signals Ca L	10.0V~14.0V
Control Signals Cb R	16.0V~20.0V
DC-Power	10~20V/150Vdc*mA (Max.)
Output Impedance	75Ω (F-Type)
Working Temperature	-30℃~+60℃

Frequently Asked Questions

What is an LNB?

An LNB (Low Noise Block, also called LNC - Low Noise Converter) is used for communications satellite reception. The LNB is typically mounted on the satellite dish to collect and amplify the satellite signal, then downconvert it to a more manageable IF frequency that can be carried over standard coaxial cabling to the receiver. LNBs are categorized into C-Band, Ku-Band, and Ka-Band based on their operating frequencies.

What is a feedhorn?

The feedhorn is a directional component of the LNB that captures signals reflected from the dish while shielding against extraneous radiation. These collected signals are then passed to the LNB electronics. Feedhorns come in three types: Orthogonal feed, offset feed, and elliptical feed.

What is a Monoblock LNB?

This design incorporates two independent LNBs in a single housing, enabling reception from two different satellites at slightly different orbital positions using a single dish. Switching between satellites is achieved via DiSEqC signals. Monoblock LNBs are available primarily for satellites with fixed 2°/3°/4.3° or 6° spacing, covering Ku band with single, twin, and quad output options.

What is a one cable solution LNB?

This LNB type can connect multiple set-top boxes (STBs) using a single RG6 cable, providing an energy-efficient, multi-user receiving solution. Also known as a stack LNB.

What does Unicable mean?

Unicable is a satellite television distribution method supporting multiple receivers (up to 32 per EN 50494 & EN 50607 standards).

Unicable 1: SCR LNB with static working mode only
Unicable 2: Supports both static and dynamic working modes, with designs allowing Universal+Unicable inputs (e.g., 1 Universal + 1 Unicable output or 1 Universal + 3 Unicable outputs)

Бирки：

Ka-Band Single LNB 19.7-20.2GHz Low Noise Block with Linear & Circular Polarization and 1.2dB Noise Figure

19.7-20.2GHz Ka-Band Single LNB

Linear & Circular Polarization Low Noise Block

1.2dB Noise Figure Satellite LNB

19.7-20.2GHz Ka-Band Single LNB

Linear & Circular Polarization Low Noise Block

1.2dB Noise Figure Satellite LNB

Ku-Band Single LO LNBF (10.75GHz) - Optimized for 11.7-12.75GHz High-Band Reception

Ku-Band LNBF with 11.7-12.75GHz Frequency Range and Dual-Polarization Support Featuring 10.75GHz Single LO

11,7 ГГц - 12,75 ГГц Ku-диапазон Однополярный LNBF ST-K21WS 10,75 ГГц с низким уровнем шума

ST-K21WD универсальный однолинейный LNBF - Ku-диапазон, двойной LO 9,75/10,6 ГГц, поляризация V/H

19.7-20.2GHz Ka-Band Single LNB

Linear & Circular Polarization Low Noise Block

1.2dB Noise Figure Satellite LNB

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ST-K24HA Universal Quad LNBF - Ku-диапазон (10,7-12,75 ГГц) с 9,75/10,6 ГГц LO

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