Bird|5000W大功率假負(fù)載8921功率為5000W，接口See Chart，油浸式散熱，可在鳥牌系列功率計(jì)上通用。
5 kW, Oil-Cooled Terminations
Termaline® Series RF Coaxial Terminations
The 8920 Series TERMALINE® Load Resistors are self-contained high-power 50 ohm coaxial transmission line terminations requiring no outside power source
or additional equipment. The units provide accurate, dependable, and practically
nonreflective termination for testing and adjusting transmitters under nonradiating
conditions. The loads consist 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. This produces the uniform, practically
reflectionless line termination from dc to 1 GHz.
· An 8890-008 over-temperature interlock safety switch is optional
· This series has includes Models 8922D, 8926D and 8927D for
Digital BroadcastVSWR = 1.056 max., 470-860 MHz
| 8820 Series, Terminations |
| Model | Connector | Diminsions
L x W x H | Weight |
| 8921 | QC, LC （F） | 30-27/32" x 9-1/2" x 25-13/16"
（783 x 241 x 656 mm） | 119 lbs.
（54 kg） |
| 8922 | 1-5/8" EIA, Flanged | 30-27/32" x 9-1/2" x 25-13/16"
（783 x 241 x 656 mm） | 121 lbs.
（55 kg） |
| 8922D | 1-5/8" EIA, Flanged | 30-27/32" x 9-1/2" x 25-13/16"
（783 x 241 x 656 mm） | 121 lbs.
（55 kg） |
| 8926 | 3-1/8" EIA, Flanged | 32-3/4" x 9-1/2" x 25-13/16"
（832 x 241 x 656 mm） | 126 lbs.
（57 kg） |
| 8926D | 3-1/8" EIA, Flanged | 32-3/4" x 9-1/2" x 25-13/16"
（832 x 241 x 656 mm） | 126 lbs.
（57 kg） |
| 8927 | 3-1/8" EIA, Unflanged | 32-3/4" x 9-1/2" x 25-13/16"
（832 x 241 x 656 mm） | 126 lbs.
（57 kg） |
| 8927D | 3-1/8" EIA, Unflanged | 31-7/8" x 9-1/2" x 25-13/16"
（809 x 241 x 656 mm） | 126 lbs.
（57 kg） |
| Power Rating （Watts） | 5000 continuous |
| Frequency Range and VSWR | DC - 1 GHz @ 1.1 max.
1.065 max., 470-860 MHz for "D" Models |
| Product Type | Oil-Cooled |
| Ambient Temp Range [°C （°F）] | -40°C to +45°C |
| Operating Position | Horizontal only |
| Connector（s） | See Chart |
| Finish | Gray Powder Coat |
| Nominal Size [inches （mm）] | See chart |
| Weight [lbs （kg）] | 126 lbs. （57 kg） |
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