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High-power RF loading with water-cooled performance

Water-Cooled
50 kW RF Loads

The 8770 Series provides reliable, high-power RF termination in a compact, water-cooled design. Built for continuous 50 kW operation, these loads are ideal for transmitter and transmission line systems where space is limited and thermal efficiency is critical.

Using a hollow resistive film element, the 8770 Series converts RF energy directly into heat, which is absorbed by internal water flow—virtually eliminating ambient heat and allowing for flexible, position-independent installation. With low VSWR and non-radiating performance, it’s a dependable solution for long-duration use in high-power RF environments.

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Why Choose the 8770 Series?

Compare Models

Find the right RF load for your application—side-by-side technical specs across Bird’s trusted termination solutions.

Model Number
Frequency Range and VSWR
Connector
Dimensions
Weight
Get Quote/Buy Now
1 kHz to 900 MHz @ 1.10 max (DC for continuity checks)
3-1/8 EIA, Flanged
19.5 in L x 3.5 in dia
(495 mm x 90 mm)
15 lb 13 oz (7.2 kg)
1 kHz to 900 MHz @ 1.10 max (DC for continuity checks)
3-1/8 EIA, Unflanged
19.5 in L x 3.5 in dia
(495 mm x 90 mm)
15 lb 13 oz (7.2 kg)
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Why RF Experts Choose Bird

For over 80 years, RF professionals have trusted Bird loads to deliver unmatched stability, low VSWR, and rugged reliability—whether on the bench or in the field. These aren’t just terminations—they’re peace of mind for your entire system.

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