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Single Ka Circular Dual polarity LNB 23mm 21.4-22.0GHz (LO20.45 GHz)


Item: 5030


This WHITE Ka Single LNB was designed to enable reception of new broadband satellite TV, radio and data services offered over NileSat’s Ka band across the MENA markets. The Single Ka LNB was designed to receive transmissions with Circular polarization and supports both RHSP and LHSP polarities. The LNB was designed to be used with a standard Ka offset dish antenna of 65-90cm diameter and F/D of 0.6. The external diameter of the feed is about 23mm and it is supplied with 40mm ring adapter to ensure compatibility with standard dish antennas. The LNB features a single IF output port that connects to a single tuner receiver supporting high speed internet transmissions or TV and Radio services. This LNB is using the highest quality components to ensure outstanding and consistent performance and durability and is manufactured under rigorous test conditions and strict quality standards.


Main Features:

• Pioneering LNB supporting broadband satellite services over Ka band

• High Frequency and Gain stability

• Low Phase Noise

• Low Noise Figure

• Low power consumption

• High Cross-Pole performance


Nilesat 201 Ka downlink coverage



NileSat 201 – 7˚W

It is one of the Nilesat’s second generation satellites and was launched in 4th of August 2010. Nilesat 201 will replace Nilesat 101 which is expected to terminate its mission during 2013. It also meets the growing demands for Nilesat space capacities within the Middle East and North Africa (MENA) region, to maintain Nilesat’s leading position among the regional satellite operators. Nilesat 201 has 24 Ku-band and 4 ka-band transponders. Its coverage includes MENA region, including the GULF region, and full coverage of Sudan and East of Africa.

 Source: NileSat


To learn more on NileSat 201 satellite – visit: http://nilesat.com.eg/Satellite/NileSat201/TechnicalInformation.aspx


The LNB is suitable for the reception of the broadband services offered by Forsway in the MENA markets.

To learn more on Forsway’s satellite broadband services – visit http://www.forsway.com/default.aspx

Product Specifications
Input Frequency Range 21.4 - 22GHz
Output Frequency Range 950 ~ 1550 MHz
Low Band LO Frequency 20.45GHz
Polarization Dual circular for Ka band (RHCP/LHCP)
Noise Figure 1.3 dB Typ. 
LO Initial Accuracy @25°C +/- 1.0 MHz Max.
LO Temperature Drift  (30°C-60°C) +/- 5.0 MHz Max.
Phase Noise (@ 10 kHz) - 75 dBc/Hz Max.
Phase Noise (@ 100 kHz) - 95 dBc/Hz Max.
Conversion Gain 50 - 60dB 
Gain Ripple (Over 26MHz Bandwidth) +/- 0.75 dB
Gain Variation (Over Full Band)  5 dB Max.
Image Rejection 40 dB Min.
1 dB Compression Point (@ Output) 0.0 dBm Min.
Cross Polarization Isolation 22 dB Min.
LHCP polarization 13V
RHCP polarization 18V
Output VSWR 2.5 : 1 
In-Band Spurious - 30 dBc Max.
Current Consumption 120 mA Max. @ 11 ~ 20 V
Operating Temperature - 30 °C  ~  + 60 °C
Output Impedance 75 Ω
Output Connector 1 x F-Type (Female)
Weight 90 g
Frequently Asked Questions

What is a feedhorn?

The feedhorn is the part of a satellite dish system which gathers the reflected signal from the dish and focuses it towards the LNB.

What is an LNB?

An LNB - Low Noise Block (also called an LNC- Low Noise Converter), is used for communications (broadcast) satellite reception. The LNB is usually affixed either in or on the satellite dish.

What is an LNBF?

An LNBF is an LNB with an integrated feedhorn

What is a Monoblock LNB?

This design consists of two independent LNBs in a single case. The two LNBs can be automatically addressed with any DiSEqC 1.0 or higher receiver. In some cases they can also be addressed with ToneBurst / MiniDiSEqC. However, they are only available for satellites with a fixed 3 degree, 4.3 degree, 6 degree …spacing. In Europe, for example, there are monoblock single, twin and quad LNBs for the Ku band, which have a pre-defined spacing of 6 degrees (for Astra 1 / Hotbird , for example).

Why can I receive only one satellite with my Monoblock?

Monoblock LNBs are designed for a specific dish size, 80cm for example. If your dish is too small (70cm for example) or too wide (90cm for example) it is not possible to receive both satellites together. Please choose the dish size for which the monoblock LNB has been designed.