BLANKOM BLR-4X Satellite Backup Redundancy Switch

Satellite Redundancy, 1:1 Backup Switch | BLR-4X

BLANKOM BLR-4X

Automatic switchover unit to the reserve satellite dish in case of a signal loss due to LNB failure or dish gain problem of the main dish.

Permanent monitoring if the main dish has become active again.

Once the main dish is recovered, automatically switch back to the normal reception conditions.

A satellite TV receiving antenna backup device is a highly specialized system designed to ensure uninterrupted satellite television service.

Description:

The BLANKOM BLR-4X Satellite Redundancy, 1:1 Backup Switch is a device designed to ensure continuous satellite TV reception by automatically switching to a backup antenna when the main antenna’s signal fails. This unit is typically employed in SMATV and IPTV systems with satellite TV reception to provide 1:1 redundancy, ensuring the availability of the signals at all times.

Functionality:

The system will typically consist of a BLANKOM BLR-4X backup unit and two satellite receiving antennas: a primary antenna and a backup antenna. The system is then equipped with an automatic switch-over mechanism that monitors the signal strength of the primary antenna.

Automatic Switchover: When, due to an antenna misalignment, LNB failure, feed horn problem, etc., the unit detects a failure or significant degradation in the signal of the main dish, the backup device switches over to the backup satellite antenna.  The backup antenna is automatically connected to the system, ensuring that there is no loss of TV reception during signal loss.

Automatic Switch-back: If the main antenna’s signal recovers and is restored to an acceptable quality, the BLR-4X backup unit will automatically switch back to the main antenna without requiring manual intervention.

Application Area:

  • Residential Use: Homeowners who want reliable satellite TV service without interruptions.
  • Commercial Use: Businesses such as hotels, restaurants, and bars that provide satellite TV to guests or customers.
  • Broadcasting Studios: Media organizations that require constant monitoring of satellite feeds for live broadcasts.
  • Event venues that rely on live satellite feeds for events or broadcasts.
  • Emergency services or government agencies needing reliable communication channels, especially in remote locations.
  • Remote Locations: Areas where connectivity is critical, but signal can be unreliable, such as rural or mountainous regions.

Benefits:

  • Uninterrupted Service: Ensures continuous access to satellite TV, minimizing downtime during bad weather or technical issues.
  • Convenience: Automated switching reduces the need for manual intervention, making it user-friendly and efficient.
  • Cost-Effective: Prevents potential revenue loss for businesses by maintaining service availability during outages.
  • Enhanced Reliability: Offers peace of mind for users who rely heavily on satellite programming for entertainment or business purposes.

A BLANKOM BLR-4X Satellite Antenna Backup Unit is essential for ensuring reliability and continuity of satellite TV receiving systems. By providing automatic switching between a main and backup antenna, it minimizes downtime and improves the overall resilience of communications services across various industries.

Inputs

8 SAT-IF from the LNB's of 2 satellite dishes, one master and one reserve
Outputs

4 SAT-IF signal from the active LNB
Outstanding features

Automatic switch to reserve satellite dish and LNB in case of signal loss.
1:1 redundancy for mission-critical satellite reception.
Dual redundant power supply for professional applications
Designed for installation into 19 inch racks = 1RU
Low-power consumption
LNB powering ON/OFF selectable
LNB supply 13-18V, 13V-18V+22KHz and up to 2.5A in total
QUAD LNB compatible
High Isolation between outputs
LED indicators for each output
High performance isolated industrial power supplies
Professional RF design for DVB IPTV and Digital Headends

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Satellite Redundancy, Backup Switch for 1:1 Dish and LNB Backup

 

BLANKOM BLR-4X 19’’ 1RU rack mount automatic L-Band Redundancy Switch is designed for serving up to 2 standard Quattro LNBs, with SAT A as the master and SAT B as the backup source.

In case of the signal loss on any SAT-IF path of SATELLITE A, BLR-4X switches automatically to SATELLITE B as a signal source. Then it monitors permanently if the signal from SAT A has been recovered. If yes, it returns to SAT A; otherwise, SAT B remains as the active source.

BLANKOM BTR-4X ensures that there is no signal loss at the Headend in case of an LNB failure or satellite dish misalignment due to weather conditions.

BLANKOM BLR-4X Satellite Backup Redundancy Switch

 

  • Dual redundant internal high isolated industrial power supplies
  • Low-power consumption, LNB powering
  • High isolation
  • L-Band: 950-2150MHz
  • Optimized RF design for the usage of DVB IPTV and Digital Headend’s
  • Seamless automatic switching if 1 input level becomes weak (< 65 dBµV)
  • Manual switch mode: SAT A – Automatic – SAT B
  • Active level monitoring and internal low attenuation
  • LED indicators for each input and output and PSU status
  • Professional quality, breakthrough price

 

 

BLANKOM BLR-4X Satellite Dish and LNB Backup Application

BLANKOM BLR-4X Satellite Reception Redundancy Switch application

Multiswitch optimized for use in DVB and IPTV Headends.

Can feed Headend equipment with SAT-IF signals of different satellites or can directly feed satellite receivers of households with IF+RF signals combined.

  • Residential Use: Homeowners who want reliable satellite TV service without interruptions.
  • Commercial Use: Businesses such as hotels, restaurants, and bars that provide satellite TV to guests or customers.
  • Broadcasting Studios: Media organizations that require constant monitoring of satellite feeds for live broadcasts.
  • Remote Locations: Areas where connectivity is critical but signal can be unreliable, such as rural or mountainous regions.

B2B application examples showcasing how the intelligent failover matrix of this backup unit safeguards critical satellite and broadcast networks:

  • Satellite Teleport Uplink Protection against High-Power Amplifier (HPA) Failure: A major satellite teleport station uplinks national television bouquets to a geostationary satellite transponder. The master modulator output is split into a Main HPA and a Backup HPA. The BLANKOM Redundancy Backup Unit is positioned directly inline to monitor the RF output of the primary high-power amplifier. If the Main HPA experiences a tube failure or power trip, the unit detects the sudden drop in RF carrier power and triggers its latching relays within milliseconds, routing the backup amplifier’s signal to the uplink dish, preventing an expensive transponder blackout.

  • Dual-Satellite Dish Failover for Hospitality IPTV Headends: A luxury mega-resort hotel relies on a primary satellite dish antenna to receive premium international channels for its IPTV headend. Due to local geographic conditions, severe storms can cause temporary “rain fade” or signal blockage on that specific orbital slot. By installing the redundancy unit, engineers connect the Main L-Band feed from Dish 1 and a Backup L-Band feed from Dish 2 (pointing to an alternative orbital slot carrying identical channel packages). The unit monitors the RF power level; if Dish 1 degrades, it instantly switches the L-Band grid to Dish 2, keeping guest room TVs running cleanly.

  • Outside Broadcasting (OB Van) Live Satellite News Uplink Protection: Digital Satellite News Gathering (DSNG) trucks broadcast breaking news live from the field under unpredictable environmental conditions. Mobile crews install the compact 1U redundancy unit inside the truck’s equipment rack to manage dual path transmission lines. Driven by its latching relay safety core, if the vehicle’s main microwave link drops or a generator phase fluctuation disrupts the primary modulator line, the unit automatically shifts the live production video feed to an automated backup satellite terminal, ensuring uninterrupted broadcast continuity back to the central studio.

  • Uninterrupted Service: Ensures continuous access to satellite TV, minimizing downtime during bad weather or technical issues.
  • Convenience: Automated switching reduces the need for manual intervention, making it user-friendly and efficient.
  • Cost-Effective: Prevents potential revenue loss for businesses by maintaining service availability during outages.
  • Enhanced Reliability: Offers peace of mind for users who rely heavily on satellite programming for entertainment or business purposes.

BLANKOM BLR-4X Satellite Backup Redundancy Switch front

 

BLANKOM BLR-4X rear

BLANKOM BLR-4X Technical specifications

Specifications are subject to change without prior notice.

 

The BLANKOM Satellite Redundancy Backup Unit is a professional, broadcast-grade failover hardware appliance designed to ensure uninterrupted signal transmission in mission-critical satellite headends and teleports. It continuously monitors the health and signal integrity of a primary (Main) feed. If a signal loss, attenuation, or carrier failure is detected, the unit automatically switches the broadcast line to a secondary (Backup) path within milliseconds, preventing on-air downtime.

The unit is engineered strictly as a high-frequency RF appliance and exclusively supports RF L-Band (950-2150 MHz) satellite signals via physical 75-ohm F-connectors (or broadcast-grade BNC interfaces). It is a dedicated physical-layer RF failover switch that does not process or decode digital ASI or IP data payloads. It focuses entirely on tracking and routing raw satellite intermediate frequency (IF) downlinks and uplinks between satellite dishes, line amplifiers, splitters, and modulators/receivers.

The device operates on a dedicated hardware-driven Carrier Loss Detection circuit that continuously tracks the physical presence of the incoming intermediate frequency payload on the primary (Main) LNB. It does not require manual operator configuration, nor does it feature software menus to define custom power thresholds. If the primary RF signal experiences an absolute interruption or carrier blackout (Signal Loss), the internal logic circuit immediately senses the drop and automatically fires the mechanical relays to switch over to the secondary (Backup) path within milliseconds.

The backup unit provides two distinct operational modes for maximum engineering flexibility:

  • Automatic Mode: The unit handles all failover decisions independently based on real-time signal threshold analysis.

  • Manual Mode: Allows station engineers to override the automated logic and force a switch to the Main or Backup LNB via the front panel buttons.

The unit utilizes professional mechanical latching RF/data relays inside its switching matrix. This design ensures that the physical connection path is maintained even during a catastrophic total power failure of the backup unit itself. If the appliance loses electrical power entirely, it will not drop the active broadcast line or block the signal, maintaining the last selected physical state securely.

Yes. The physical RF ports are engineered to support DC voltage and 22kHz tone pass-through lines. This allows the unit to seamlessly pass remote power from satellite receivers/modulators directly to external Low Noise Block-converters (LNBs) or Line Amplifiers positioned at the satellite dish antenna matrix without causing short circuits or signal attenuation.

Yes, the software incorporates a programmable Auto-Return (Reversion) delay timer. Once the primary signal source recovers and stabilizes above the safe threshold for a predefined period (e.g., 30 seconds), the unit can automatically switch back to the Main line, ensuring the headend always utilizes its primary premium signal path without requiring manual human intervention.

Designed as a zero-downtime infrastructure component, the device is housed in a rugged 1U 19-inch rackmount chassis with an advanced passive fanless thermal cooling design. By eliminating complex modular sub-blades and moving mechanical components—except for the highly resilient latching relays—the chassis runs with high thermal stability, delivering an exceptional Mean Time Between Failures (MTBF) track record required by teleport standards.

 

 

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