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{"title":"Universal Quattro LNB for VSAT - Ku Band 4 Output High Gain Low Noise Satellite","imgUrl":"https:\/\/img.chinax.com\/nimg\/46\/09\/a4437eeb6395bbf6dcb6a2612c47-200x200-1\/universal_quattro_lnb_for_vsat_ku_band_4_output_high_gain_low_noise_satellite.jpg","attrs":{"Brand Name":"SETON","Model Number":"ST-K24T \uff08Quattro LNB\uff09","Place of Origin":"China","Minimum Order Quantity":"1pcs"}}
{"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"}}
Professional Ku Band Quattro LNBF - 4 Output LNB for VSAT Systems & Satellite TV (10.7-12.75GHz)
A Ku-Band Quattro Low-Noise Block Downconverter (LNBF) engineered for Very Small Aperture Terminal (VSAT) systems. This unit features four independent, phase-stabilized output ports, each dedicated to a specific polarization (Horizontal High/Low, Vertical High/Low), enabling simultaneous multi-receiver or multi-frequency operation within the 10.7-12.75 GHz spectrum.
Technical Specifications
No.
ITEM
SPECIFICATION
UNIT
K-1
Low Band I/P Frequency Range
10.7 ~ 11.7
GHz
K-2
O/P Frequency Range
950 ~ 1950
MHz
K-3
LO Frequency
9.75
GHz
K-4
Noise Figure
0.8 [Typ] 1.0 [Max.]
dB
K-5
High Band I/P Frequency Range
11.7 ~ 12.75
GHz
K-6
O/P Frequency Range
1100 ~ 2150
MHz
K-7
LO Frequency
10.6
GHz
K-8
Noise Figure
0.8 [Typ.] 1.0 [Max.]
dB
K-9
LO Initial Accuracy
± 500
kHz
K-10
LO Temperature Drift - 30 ~ + 60℃
± 1.0
MHz
K-11
LO Phase Noise@1KHz
-65
dBc / Hz
K-12
LO Phase Noise@10KHz
-80
dBc / Hz
K-13
LO Phase Noise@100KHz
-95
dBc / Hz
K-14
Conversion Gain
55-67
dB
K-15
Gain Flatness
± 3 [Max.]
dB
K-16
Gain Variation
± 0.75 [Max.]
dB/27 MHz
K-17
Image Rejection
-40 [Min.]
dB
K-18
O/P 1 dB Compression Point
0.0 [Min.]
dBm
K-19
Crosstalk Isolation
22 [Min.]
dB
K-20
Gain difference between outputs
5 [Max.]
dB
K-21
O/P VSWR
2.5:1
~
K-22
DC Power
11 ~ 20* 250[Max.]
Vdc*mA
K-23
Working Temperature
- 30 ~ + 60
℃
K-24
Output Impedance
75
Ω (F-Type)
What is a Quad LNB?
A quad LNB is engineered to serve multiple tuners directly without the need for additional equipment like a multiswitch.
Here's what distinguishes a quad LNB:
Four Independent Outputs: The defining feature of a quad LNB is its four independent outputs. Each output is capable of driving a separate tuner, enabling direct connection to up to four satellite receivers.
Full Ku-Band Coverage: In a quad LNB setup, each output provides signals from the entire Ku band. This means that each tuner connected to a quad LNB has access to all available satellite channels without restriction.
Direct Tuner Connection: Quad LNBs are commonly used in installations where each satellite receiver requires its own dedicated connection to the LNB. This setup is prevalent in residential settings where viewers prefer individual access to satellite channels.
What is a Quattro LNB?
On the other hand, a quattro LNB serves a distinct purpose in shared dish distribution systems.
Here are the characteristics that set it apart:
Designed for Multiswitch Integration: Unlike quad LNBs, quattro LNBs are specifically intended for use with multiswitches in shared dish distribution setups. These multiswitches facilitate the distribution of satellite signals to multiple receivers or users in shared environments like apartment buildings or commercial properties.
Four Outputs, Quarter Band Signals: Similar to quad LNBs, quattro LNBs also feature four outputs. However, each output provides only a quarter of the Ku band signals rather than the entire spectrum.
Signal Division: The signals provided by each output of a quattro LNB are typically divided based on polarization and frequency bands. This division ensures that each output delivers a specific subset of satellite signals, facilitating efficient distribution in shared systems.
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 a specific satellite TV installation scenario.
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
