產(chǎn)品特性：APM-16用假負(fù)載,鳥牌Bird中國代理,美國鳥牌功率計(jì),Bird 2500W假負(fù)載
2.5 kW, Oil-Cooled Terminations Termaline® Series RF Coaxial Terminations The 8890-300 2.5 kW, TERMALINE® Load Resistor Series are self-contained high-power 50 ohm coaxial transmission line terminations requiring no outside power source or additional equipment. It provides accurate, dependable, and practically nonreflective termination for testing and adjusting transmitters under nonradiating conditions. The load consists essentially of a cylindrical film type resistor immersed in a dielectric coolant. The resistor, individually selected for its accuracy, is enclosed in a special tapered housing which provides a linear reduction in surge impedance directly proportional to the distance along the resistor. Oil-assisted (vented) convection cooling for safe, continuous operation up to 2500W full rated power · Compatible with all Bird QC connectors · Overload thermoswitch P/N 8890-008 is optional. Free assembly when ordered as a package. 8890-300 Series, Terminations Model Connector Recess (In.) Diminsions, L x W x H Weight 8890-300 LC, Female n/a 23-1/8" x 7" x 17-3/16" (587 x 178 x 437 mm) 57 lbs. (26 kg) 8891-300 3-1/8" EIA, Flanged 0.922 25-1/8" x 7" x 17-3/16" (638 x 178 x 437 mm) 59 lbs. (27 kg) 8891D-300 3-1/8" EIA, Flanged 0.922 25-1/8" x 7" x 17-3/16" (638 x 178 x 437 mm) 59 lbs. (27 kg) 8892-300 1-5/8" EIA, Flanged 0.625 23-1/8" x 7" x 17-3/16" (587 x 178 x 437 mm) 58 lbs. (26 kg) 8892D300 1-5/8" EIA, Flanged 0.625 23-1/8" x 7" x 17-3/16" (587 x 178 x 437 mm) 58 lbs. (26 kg) 8895-300 1-5/8" EIA, Unflanged 0.438 22-3/16" x 7" x 17-3/16" (564 x 178 x 437 mm) 58 lbs. (26 kg) Power Rating (Watts) 2500 continuous Frequency Range and VSWR DC - 1 GHz @ 1.1 max. 1 GHz - 2 GHz @ 1.25 max. 2 GHz - 2.4 GHz @ 1.3 max. Impedance (Ω) 50 Operating Temperature (°C) -40°C to +45°C Coolant 2.9 gal. (11 liters) Silicone oil Product Type Oil-Cooled Operating Position Horizontal only Connector(s) See Chart Finish Gray Powder Coat Nominal Size [inches (mm)] See chart Weight [lbs (kg)] See chart
· Overload thermoswitch P/N 8890-008 is optional. Free assembly when ordered as a package.
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