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Eutelsat 25.5E Ka/Ku coverage over the MENA region
Technical specifications
Input frequency range 21.4 GHz ~ 22.0 GHz (Ka band)
IF frequency range 950 MHz ~ 2150 MHz (Ka band)
Low band input frequency range 10.7 GHz ~ 11.7 GHz
Low band output frequency range 950 MHz ~ 1950 MHz
Low band LO frequency
9.75 GHz (Ku band)
High band input frequency range
11.7 GHz ~ 12.75 GHz
High band LO frequency
10.6 GHz (Ku band)
Noise figure
1.2 dB typ.
1.5 dB typ. (1.7 dB max.) (Ku band)
1.2 dB typ.
1.5 dB typ. (1.7 dB max.) (Ku band)LO frequency
20.25 GHz (Ka band)LO temperature drift±3.0 MHz Max.LO initial accuracy±1.0 MHz Max.LO phase noise @ 1 kHz-50 dBc / Hz max.LO phase noise @ 10 kHz
-75 dBc / Hz max.LO phase noise @ 100 kHz-95 dBc / Hz max.LO phase noise @ 1 MHz-105 dBc / Hz max.LO band selectionNone (fixed to 20.25 GHz) Conversion gain
50 dB ~ 60 dB min.Gain ripple (over 26 MHz bandwidth)±0.75 dBGain variation (over full band)±5 dB max.1 dB compression point (@ output)0.0 dBm min.Cross polarization isolation18 dB min.
20 dB min. (Ka band)Polarization selection - Vertical13 VPolarization selection - Horizontal18 VControl signal Cc (band switching)
0/22 kHz +/-4 kHzOutput VSWR
2.5 : 1 In band spurious level-60 dBm max.Current consumption
180 mA max. @ 11 V ~ 20 VOperating temperature
-30 °C ~ +60 °COutput impedance
75 ΩOutput connector type
F-Type (female)Recommended Dish Size60 ~ 80 cm (F/D ~0.6)Weight540 gRemraks13/18V command is used to select between:
Vertical and Horizontal polarization for Ku and Ka band
0/22KHz is used to select between:
10.7 to 11.7 GHz in Ku band (ie 9.75GHz LO)
- Low band- 11.7 to 12.75 GHz in Ku band (ie 10.6GHz LO)
- High band- In Ka band, the LO is fixed whatever is the 0/22 KHz signal (ie 20.25 GHz LO)Logistical infoPackaging dimensions (W x D x H)16,1 cm x 9,45 cm x 13,1 cmPackaging weight0,645 kgQuantity per Carton30 pcsCarton dimensions (W x D x H)82,5 cm x 30,3 cm x 28,2 cmCarton weight19,35 kgQuantity per pallet360
An LNB - Low Noise Block (also called an LNC- Low Noise Converter), it is used for communications (broadcast) satellite reception. The LNB is usually affixed either in or on the satellite dish and its purpose is to collect and amplify the satellite signal received from the dish and then down convert the signal to lower more manageable IF frequency which can then be carried over standard coaxial cabling to the receiver.
Q: What is a feedhorn?
The feedhorn is a part of the LNB and works like a directional horn. Its function is to capture the signals reflected from the dish and to shield the LNB from receiving extraneous radiation from other sources. These collected signals are then passed form the horn to the electronics within the LNB.
Q: What is the difference between a Quad and Quattro LNB?
A quad or quad switch LNB is an LNB where the multi switch is integrated into the LNB and gives 4 independent output ports for the connection of 4 receivers. A Quattro LNB has 4 outputs and each of the output’s is set to one of the differing polarities, the 4 outputs are V/L, V/H, H/L & H/H. A Quattro LNB is normally used to feed a multiswitch which then allows the distribution of the signal to any number of satellite receivers. All four outputs of a Quattro LNB are marked accordingly with V/L, V/H, H/L & H/H to avoid confusion and malfunctions when connecting to the multiswitch.
Q: What is the HsQuare Technology
HsQuare is a unique waveguide technology which may be coupled with a slightly larger feed horn design to deliver better RF performances compared with common circular microwave waveguides.
Q: What is a monoblock LNB?
This design consists of two independent LNBs in a single housing and allows a user the potential of receiving the signal from two different satellites which are at slightly different orbital opposition from a single dish installation. The switching between the satellitesis achieved via the use of DiSEqC signals or Toneburst (Mini DiSEqC). Monoblock LNB’s are available mostly for satellites with a fixed 4.3° or 6° spacing and the range covers Ku band monoblock switch single, twin and quad outputs.
Example where a 6° monoblock LNB could be used is for the reception of ASTRA 1 (19.2° East) and Hotbird (13° East) or with 4.3° distance for the reception of ASTRA 1 (19.2° East) and ASTRA 3 (23.5° East