Inverto Quad Monoblock LNB 4.3° for 80 cm Dish – 23 mm and 4 Outputs

The Inverto IDLB-QUDM21-MNO43-8PP is a high-quality Quad Monoblock LNB designed for simultaneous reception from two satellite positions separated by approximately 4.3°. It is intended for an approximately 80 cm offset dish with an F/D ratio of 0.6.

The LNB is particularly suitable for receiving Astra 19.2°E and Astra 23.5°E. It may also be used for other satellite pairs with similar spacing, including Eutelsat 9°E and Hotbird 13°E or Astra 4.8°E and Eutelsat 9°E, depending on geographical location and installation conditions.

An integrated DiSEqC 1.0 switch selects the required satellite directly from the receiver. Four independent outputs can supply up to four single-tuner receivers or two Twin Tuner receivers. Each connected tuner can independently select its satellite position, polarisation and frequency band.

The model is optimised for digital satellite television and HDTV. Its typical 0.2 dB noise figure, stable local oscillator and good cross-polarisation isolation provide reliable performance in European satellite installations.

✅ Product Benefits

• Receives two satellite positions using one dish

• Designed for approximately 4.3° orbital spacing

• Optimised for Astra 19.2°E and Astra 23.5°E

• Four independent outputs

• Supports up to four receivers or tuners

• Suitable for two Twin Tuner receivers

• Watch one programme while recording another

• Integrated DiSEqC 1.0 switch

• No separate DiSEqC switch required

• Typical noise figure of only 0.2 dB

• Gain of 50–65 dB

• Good frequency stability

• Suitable for digital satellite television and HDTV

• Designed for an approximately 80 cm offset dish

• Compact 23 mm monoblock mounting section

• Wide operating range from −30 to +60°C

🎯 Ideal For

• Astra 19.2°E and Astra 23.5°E

• Eutelsat 9°E and Hotbird 13°E

• Astra 4.8°E and Eutelsat 9°E

• Homes with up to four satellite tuners

• Two Twin Tuner receivers

• PVR and recording receivers

• Televisions with integrated satellite tuners

• Installations using an approximately 80 cm offset dish

• Digital satellite television and HDTV

• Systems where an external DiSEqC switch should be avoided

🛰️ Example Satellite Combinations

Reception depends on the satellite footprints, dish geometry, geographical location and installation accuracy.

🔧 Connection and Operation

Install the LNB on a compatible approximately 80 cm offset dish equipped with a 23 mm monoblock holder. For the Astra combination, configure the receiver as follows:

• DiSEqC A / Sat A: Astra 19.2°E

• DiSEqC B / Sat B: Astra 23.5°E

• LNB type: Universal 9750/10600 MHz

• Low band: 0 kHz

• High band: 22 kHz

• Vertical polarisation: normally 13V

• Horizontal polarisation: normally 18V

Each tuner must be connected by its own coaxial cable to a separate LNB output. A Twin Tuner receiver normally requires two cables and two outputs to watch one channel while independently recording another.

When the LNB is used with other satellite combinations, dish alignment, LNB rotation and DiSEqC settings must be adapted to the installation.

📡 Capacity

Capacity should be calculated by the number of tuners rather than only the number of receiver boxes.

⚙️ Technical Specifications

Product type: Universal Quad Monoblock LNB

Manufacturer: Inverto

Model: IDLB-QUDM21-MNO43-8PP

Number of satellite positions: 2

Orbital spacing: 4.3°

Number of outputs: 4

Independent receivers/tuners: Up to 4

Satellite switching: DiSEqC 1.0

Default Sat A: Astra 19.2°E

Default Sat B: Astra 23.5°E

Recommended dish size: 80 cm

Recommended F/D ratio: 0.6

Mounting diameter: 23 mm

Low-band input frequency: 10.7–11.7 GHz

Low-band output frequency: 950–1950 MHz

Low-band LO frequency: 9.75 GHz

High-band input frequency: 11.7–12.75 GHz

High-band output frequency: 1100–2150 MHz

High-band LO frequency: 10.6 GHz

Noise figure: 0.2 dB typical, 0.7 dB maximum

Initial LO accuracy: ±1.0 MHz maximum

LO temperature drift: ±3.0 MHz maximum

LO phase noise at 10 kHz: −90 dBc/Hz maximum

Conversion gain: 50–65 dB

Gain ripple over 26 MHz: ±0.75 dB

Full-band gain variation: ±4 dB maximum

Image rejection: 40 dB minimum

Output 1 dB compression point: 0.0 dBm minimum

Cross-polarisation isolation: 22 dB minimum

Output VSWR: 2.5:1

In-band spurious level: −60 dBm maximum

Power consumption: 250 mA maximum at 11–20V

Operating temperature: −30 to +60°C

Output impedance: 75 Ω

Outputs: 4 × female F-connectors

Weight: 485 g

Digital satellite reception: Yes

HDTV-compatible: Yes

📦 Package Contents

• 1 × Inverto IDLB-QUDM21-MNO43-8PP Quad Monoblock LNB 4.3°