Place of Origin:
CHINA
Brand Name:
SETON
Certification:
CE, ISO, ROHS, POP, REACH
Model Number:
ST-K22FA
Model: ST-K22FA
One Dish, Two Receivers – Full Ku-Band Compatibility – Independent Tuning, No Interference
For users who need multi-room satellite TV distribution in Ku-band, traditional solutions require separate dishes for each room or external switches – high cost, complex wiring, and signal loss. The Ku-Band Universal Twin LNBF ST-K22FA is exactly the solution.
This product features a dual independent output design with two complete receiving channels. One LNBF provides signals for two independent receivers. It also supports full Ku-band coverage (10.7~12.75GHz) with automatic switching between low-band and high-band via 22KHz signal, compatible with all Ku-band satellite programs.
Key Advantages:
Dual Independent Outputs – One LNBF, two receivers working independently, no interference
Full Ku-Band Coverage – 10.7~12.75GHz input with automatic low/high band switching
No External Switches Needed – Saves cost, reduces signal loss
Ultra-Low Noise – Noise figure as low as 0.7dB (Typ.) / 1.0dB (Max.)
High Gain Output – 60dB typical gain for strong signal strength
Wide Temperature Reliability – -30℃~+60℃ operating range for all climates
One dish, two receivers. Full Ku-band compatibility. No switches needed. Independent tuning, no interference.
Dual Independent Outputs Full Ku-Band Coverage Ultra-Low Noise High & Stable Gain PLL Precise Frequency Stability Universal Control Compatibility Cost-Effective Multi-Room Solution Standard Interfaces| Parameter | Value |
|---|---|
| Input Frequency Range (Low-Band) | 10.7 GHz ~ 11.7 GHz |
| Output Frequency Range (Low-Band) | 950 MHz ~ 1950 MHz |
| Low band LO frequency | 9.75 GHz |
| Input Frequency Range (High-Band) | 11.7~12.75 GHz |
| Output Frequency Range (High-Band) | 1100~2150 GHz |
| High band LO frequency | 10.6 GHz |
| Noise figure | 0.7 dB (Typ.)/ 1.0 dB(Max.) |
| LO Initial Accuracy | 0.5 MHz |
| LO Temperature Drift (-30~+60℃) | 0.75 MHz |
| LO phase noise @ 1 KHz | -75 dBc/Hz |
| LO phase noise @ 10 KHz | -80 dBc/Hz |
| LO phase noise @ 100 KHz | -90 dBc/Hz |
| Conversion Gain | 55 dB~65 dB/ 60 dB (Typ.) |
| Gain Flatness | 3.0 dB (Max.) |
| Gain Variation | 0.5 dB/26 MHz |
| O/P 1dB Compression Point (P1 dB) | 0.0 dBm (Min.) |
| Image-Rejection | -40 dBc (Min.) |
| Crosstalk Isolation | 20 dB (Min.) |
| O/P VSWR | 2.5:1 |
| Control Signals Ca V | 10.0 V~14.0 V |
| Control Signals Cb H | 16.0 V~20.0 V |
| Control Signals Cc | 22±4 KHz |
| DC-Power | 10~20 V/150 Vdc*mA (Max.) |
| Output Impedance | 75Ω (F-Type) |
| Working Temperature | -30℃~+60 ℃ |
Two TVs at home – don't want channel conflicts Want to watch one channel while recording another Hotel/Apartment multi-room – complex wiring, high cost Traditional setup requires external switches – adds cost and signal loss Need full Ku-band reception – don't want different equipment for different bands Weak signals in remote areas – poor picture quality Temperature changes outdoors cause signal instability| Traditional Solution | Twin LNBF Solution |
|---|---|
| Requires external switch (DiSEqC/4x1, etc.) | No external switch needed – direct connection to receivers |
| Switch introduces additional signal loss (typically 1-2dB) | No additional loss – higher signal quality |
| More components = more potential failure points | Fewer components – higher reliability |
| Requires additional power or control lines | Standard 13/18V + 22KHz power – plug and play |
| Two receivers may interfere with each other | Independent tuning – ≥20dB isolation, no interference |
| Often requires professional configuration | Simple installation – easy for regular users |
Dual Independent Outputs – One LNBF connects two receivers. No external switches needed.
Full Ku-Band Coverage – 10.7~12.75GHz complete coverage with automatic band switching.
Ultra-Low Noise – 0.7dB typical noise figure for excellent weak signal reception.
High & Stable Gain – 60dB typical gain for reliable signal strength.
PLL Precise Frequency Stability – ±0.75MHz drift over -30℃~+60℃ wide temperature range.
Cost-Effective – Ideal for multi-room, PVR, hotels, and community antenna systems.
Multi-Room Home Installation PVR Setup Hotel / Commercial Applications Small CATV Headends Community Antenna SystemsA: A Twin LNBF has two independent receiving channels sharing a single feedhorn and dish. It features two output ports that can connect to two independent satellite receivers simultaneously. Both receivers can watch programs on different polarizations without interfering with each other.
A: No. This is one of the key advantages of a Twin LNBF. Traditional solutions require external DiSEqC switches to distribute signals, but a Twin LNBF provides two direct independent outputs – plug and play, no additional equipment needed.
A: Yes. Input frequency covers the complete 10.7~12.75GHz Ku-band. Automatic switching via 22KHz control signal: no 22KHz = low-band (9.75GHz LO), 22KHz present = high-band (10.6GHz LO).
A: Yes. The Twin LNBF has built-in vertical/horizontal polarization channels with ≥20dB isolation. One receiver can select vertical polarization while the other selects horizontal polarization – different programs, different polarizations, no interference.
A: Lower noise figure means the LNB generates less self-noise. With 0.7dB (Typ.) , you get clear, pixelation-free pictures even in weak signal environments – such as remote areas, light rain fade, or when using smaller dish antennas.
A: Very suitable. Connect Output A to your main TV for watching, and Output B to your PVR for recording. With two independent outputs, you can watch and record programs on different polarizations simultaneously.
A: -30℃ to +60℃. This covers most climate conditions – from cold winters to hot summers.
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