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{"title":"VSAT LNB C Band LNBF 3.72-4.2GHz High Gain Low Noise Anti 5G LNB with 50dBc","imgUrl":"https:\/\/img.chinax.com\/nimg\/c6\/35\/5821c491dcedcbb9d7101c8a5485-200x200-1\/vsat_lnb_c_band_lnbf_3_72_4_2ghz_high_gain_low_noise_anti_5g_lnb_with_50dbc_rejection.jpg","attrs":{"Brand Name":"SETON","Model Number":"ST-C11F","Place of Origin":"China","Minimum Order Quantity":"1pcs"}}
{"title":"VSAT LNB KU Band LNBF WR75 12.25~12.75GHz with 60dB Gain and 0.7dB Noise Figure","imgUrl":"https:\/\/img.chinax.com\/nimg\/34\/6e\/dc92af1a9da51415619c1e62330e-200x200-1\/vsat_lnb_ku_band_lnbf_wr75_12_25_7e12_75ghz_with_60db_gain_and_0_7db_noise_figure.jpg","attrs":{"Brand Name":"SETON","Model Number":"KU WR75","Place of Origin":"China","Minimum Order Quantity":"1pcs"}}
{"title":"VSAT LNB Block Up Converter BUC Satellite Dish LNB with 13.75 ~ 14.5GHz Output","imgUrl":"https:\/\/img.chinax.com\/nimg\/fa\/fd\/195b2d2e44f6ce790b5565cb3f01-200x200-1\/vsat_lnb_block_up_converter_buc_satellite_dish_lnb_with_13_75_7e_14_5ghz_output_frequency_950_7e_1700mhz_input_frequency_and_58db_.jpg","attrs":{"Brand Name":"SETON","Model Number":"KU 37.8dBm BUC (ST-Tx6W)","Place of Origin":"China","Minimum Order Quantity":"1pcs"}}
{"title":"0.7dB Low-Noise Quad LNB (4 Output) - Universal Ku Band LNBF for VSAT and","imgUrl":"https:\/\/img.chinax.com\/nimg\/b7\/49\/589a6682d2848b897b76ee9f38f3-200x200-1\/0_7db_low_noise_quad_lnb_284_output_29_universal_ku_band_lnbf_for_vsat_and_satellite_tv_systems.jpg","attrs":{"Brand Name":"SETON","Model Number":"ST-K24Q","Place of Origin":"China","Minimum Order Quantity":"1pcs"}}
{"title":"VSAT LNB BUC ST-Tx6W 13.75 - 14.5GHz Output Frequency Range 950 - 1700MHz Input","imgUrl":"https:\/\/img.chinax.com\/nimg\/68\/99\/d05f6a122110c6498379d154d873-200x200-1\/vsat_lnb_buc_st_tx6w_13_75_14_5ghz_output_frequency_range_950_1700mhz_input_frequency_range.jpg","attrs":{"Brand Name":"SETON","Model Number":"ST-Tx6W","Place of Origin":"China","Payment Terms":"T\/T,Western Union"}}
{"title":"ST-K24T VSAT Quattro LNB With 10.7 - 11.7GHz Low Band 11.7 - 12.75GHz High Band","imgUrl":"https:\/\/img.chinax.com\/nimg\/ad\/a8\/598c6ea39b2ca7425ecf7e8ad0d4-200x200-1\/st_k24t_vsat_quattro_lnb_with_10_7_11_7ghz_low_band_11_7_12_75ghz_high_band.jpg","attrs":{"Brand Name":"SETON","Model Number":"ST-K24T \uff08Quattro LNB\uff09","Payment Terms":"T\/T,Western Union","Packaging Details":"CARTON"}}
KU Band Quad LNBF - 4-Output Low-Noise Block Downconverter with Feedhorn
Quad-Output Low-Noise Block Downconverter (LNBF) for KU Band VSAT Systems A Ku Band Universal QUAD LNBF is a 4-output low-noise block downconverter that operates in the Ku frequency band (10.7-12.75 GHz) with universal switching between low/high bands (9.75/10.6 GHz LO) and 4 independent outputs for simultaneous receiver operation.
Technical Specifications
Parameter
Specification
Unit
Low Band I/P Frequency Range
10.7 ~ 11.7
GHz
O/P Frequency Range
950 ~1950
MHz
LO Frequency
9.75
GHz
Noise Figure
0.7[Typ]. / 0.9[Max.]
dB
High Band I/P Frequency Range
11.7 ~ 12.75
GHz
O/P Frequency Range
1100 ~ 2150
MHz
LO Frequency
10.6
GHz
Noise Figure
0.7[Typ]. / 0.9[Max.]
dB
LO Initial Accuracy
± 0.5
MHz
LO Temperature Drift - 30 ~ + 60℃
± 0.75
MHz
LO Phase Noise @ 1K Hz
-70
dBc / Hz
LO Phase Noise @ 10K Hz
-80
dBc / Hz
LO Phase Noise @ 100K Hz
-90
dBc / Hz
Conversion Gain
58-68/62[Typ.]
dB
Gain Flatness
±3.5[Max.]
dB
Gain Variation
±0.5
dB/26MHz
Image Rejection
-40 [Min.]
dB
O/P 1 dB Compression Point
0.0 [Min.]＋3.0[Typ.]
dBm
Crosstalk Isolation
22 [Min.]
dB
Control Signals Ca [ V ]
10.0 ～ 14.0
V
Control Signals Cb [ H ]
16.0 ～ 20.0
V
Control Signals Cc
22± 4
kHz
O/P VSWR
2.5:1
~
DC Power
10 ~ 20* 150[Max.]
Vdc*mA
Working Temperature
- 30 ~ + 60
℃
Output Impedance
75
Ω (F-Type)
Waterproof
O-Ring
What is a Quad LNB?
A quad LNB is engineered to serve multiple tuners directly without the need for additional equipment like a multiswitch.
Four Independent Outputs: Each output can drive a separate tuner, enabling direct connection to up to four satellite receivers.
Full Ku-Band Coverage: Each output provides signals from the entire Ku band, giving each tuner access to all available satellite channels.
Direct Tuner Connection: Ideal for residential installations where each satellite receiver requires its own dedicated connection.
What is a Quattro LNB?
A quattro LNB serves a distinct purpose in shared dish distribution systems and is specifically designed for multiswitch integration.
Designed for Multiswitch Integration: Used with multiswitches in shared environments like apartment buildings or commercial properties.
Four Outputs, Quarter Band Signals: Each output provides only a quarter of the Ku band signals rather than the entire spectrum.
Signal Division: Outputs deliver specific subsets of satellite signals based on polarization and frequency bands for efficient distribution.
What is the Difference Between Quattro LNB and Quad LNB?
Although both quad and quattro LNBs offer four outputs, their functionality and applications differ significantly. A quad LNB is suitable for direct connection to multiple tuners, providing access to the entire Ku band for individual receivers. Conversely, a quattro LNB is tailored for integration with multiswitches, distributing quarter-band signals to multiple users in shared dish distribution systems. Understanding these differences is crucial for selecting the appropriate LNB for your specific satellite TV installation requirements.
Practical Selection Guide
Choose a QUAD LNB when:
You are installing a standard single-home system.
You need to feed 1 to 4 satellite tuners/receivers directly.
Examples:
House with 4 TVs, each with its own receiver.
House with 1x dual-tuner PVR (needs 2 cables) + 2x basic receivers.
Simple setup where each cable runs directly from dish to receiver.
Choose a QUATTRO LNB when:
You are installing a communal distribution system (apartment block, hotel, etc.).
You need to feed a multiswitch that will distribute signals to many receivers (16, 24, 48+).
Examples:
12-flat apartment building with a central dish feeding all apartments.
Hospital with satellite TV in each room.
Any installation where the number of outputs needed exceeds what a Quad/Octo can provide directly.
