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RF Loads & Terminations

The Safe, "BeO-Free" Alternative for High-Power Broadcast

For decades, broadcast engineers had to choose between messy oil-filled loads or dry loads containing toxic Beryllium Oxide (BeO). COM-TECH has revolutionized this essential component with a 100% BeO-Free design philosophy.

MDL Communications supplies the full range of COM-TECH Dry and Liquid-Cooled Loads. These units provide an ultra-stable 50-ohm termination for transmitters and combiners, eliminating the environmental risks and maintenance headaches of legacy oil tanks.

 

Why "BeO-Free" Matters

Beryllium Oxide (BeO) is a ceramic often used in RF resistors for its thermal conductivity, but it is highly toxic if machined or pulverized. COM-TECH was the first to introduce a complete line of BeO-Free Dry Loads, using advanced alternative ceramics that offer equal thermal performance without the health hazards.

  • Safety: No risk of toxic dust contamination during handling or failure.
  • Compliance: Fully RoHS and ISO 14001 compliant.
  • Maintenance-Free: No oil levels to check, no leaks to clean.

 


Product Series

1. Dry Loads (DH, DL, DT Series)

Designed for natural convection or forced-air cooling, these loads are the workhorses of the industry. They feature a compact aluminum heat sink design that can be mounted in any orientation.

  • DH Series: Low power (10W โ€“ 90W)
  • DL Series: Medium power (250W โ€“ 800W)
  • DT Series: High power (1.1kW โ€“ 3.5kW)
  • Cooling: "H" (Heatsink) standard, with forced air options for higher densities.

2. High-Power Liquid Cooled Loads

For high-power transmitter combining and termination, COM-TECH offers liquid-cooled variants. These compact units use a coolant loop (water/glycol) to dissipate massive amounts of heat efficiently, replacing the need for bulky oil drums.

3. The "DP" Power Load Series

The DP Series bridges the gap, offering robust power handling (2.5kW โ€“ 5.0kW) in a standalone chassis, ideal for test benches and combiner reject loads.


Technical Specifications

Feature Specification
Frequency Range DC โ€“ 860 MHz (FM / VHF / UHF)
Technology 100% BeO-Free Ceramics
Power Handling 10W up to 5kW+ (Modular)
Cooling Options Natural Convection, Forced Air, Liquid Cooled
Return Loss > 26 dB (Typical > 30 dB)
Connectors N, 7/16, 7/8", 1-5/8", 3-1/8"
Monitoring Optional Thermal Switch & Directional Coupler Port

Why Upgrade with MDL?

Old oil loads are a liability. They leak, they drift, and they take up valuable floor space. MDL Communications can help you retrofit your site with modern COM-TECH dry loads.

  • Canadian Inventory: We stock common termination sizes for immediate emergency replacement.
  • Custom Integration: We can mount loads directly onto your patch panels or combiners.
  • 10-Year Warranty: Guaranteed reliability you won't find with generic replacements.

Stop worrying about oil leaks.

Contact MDL Communications for a quote on a modern, safe RF termination.

Contact MDL Sales | Download COM-TECH Loads Catalog