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WS International ESX521U-AM Single FSS Ku Band Linear FTA LNB | LNBF

WS International

ESX521U-AM 4-12 degree adjustable Linear Ku band LNBF With

 2-Year Warranty!

This brand new adjustable Ku band LNBF allows you to get signal from two satellites, using a single satellite dish.  Get signal on your dish from two satellites that are within 4-12 degrees apart!  This is a brand new product introduced to the satellite market by WS International on 7/11/2011!Excellent for the Thai and Lao channels broadcasting from the SES 1 & Galaxy 19 satellites. 


It's recommended to use it with a 90cm Ku band dish (Model# WS9036).  Combine the signals to a single satellite receiver using a DiSEqC switch (Model# WS4120NE). 







If you want the best quality, best performing, and the newest technology in the industry, don't look beyond the ESX521U-AM LNBF from WS International!


This is an adjustable Ku band LNB.  It's compatible with all the DiSEqC & Multi switches on the market and with an incredible high gain to give you the highest possible quality signal. 


It's manufactured by WS International which is one of the most popular, reliable and well known brands on the market and comes with a full 2-year warranty.  The WS International ESX521U-AM is designed to fit on most offset Ku band antennas with 40mm universal LNBF mounts.

Banda KU | Ku Band Universal LNB esta HD High Definition

WS International ESX521U-AM Single Linear Ku Band LNBF

Monoblock 4 to 12 degrees degree LNB LNBF Ku Linear FTA 

Information Request

WS International ESX521U-AM Single LNBF

Buy More, Save More

Qty Price/pc
1-2 $29.99









This little unit allows you to obtain satellite signal from any satellite within 4-12 degrees apart.  The unit comes with a full 2-year warranty.  Excellent for the Thai and Lao channels broadcasting from the Galaxy 19 & SES 1 satellites.


Forget the traditional monoblocks with limited capabilities.  This unit adjusts from 4-12 degrees to give you a vast variety of options as to the two satellites you can pick up.  Click on the picture to the right for more pictures!  Make sure to get a WS4120 satellite switch in order to combine signal from both satellites into one satellite receiver. 



Purchase More of the HD Ready Ku LNB and Save More

HD FTA Ku LNB | LNBF for Ku Band and Free To Air.  Works for International Satellite Also


Technical Specifications

Input Frequency Range 10.7 - 12.75 GHz
L.O. Frequency 9750/10600MHz
L.O. Stability 1 MHz (-40 - +70 c)
Ouput Frequency Range 950 - 2150 MHz
Noise .2dB typical
Conversion Gain 60dB typical
Input VSWR 2.5:1
Output VSWR 2.0:1 (max)
Connector F Type female
Impedence 75 ohm typical
Cross Polar Isolation >25dB (min.)
Image Rejection 45 dB (min.)
Phase Noise -50dBc @ 1 KHz
-75dBc @ 10 KHz
-95dBc @ 100KHz
Supply Voltage

Ca: 11.5 - 14.0 V = Vertical Polarization
Cb: 15.5 - 19.0 V = Horizontal Polarization

Operating Temperature -40 - +70 degrees Celsius
Storage Temperature -40 - +80 degrees Celsius
Relative Humidity 0 - 95 %
Throat Diameter 40mm



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