3

LD7215W

TYPICAL OPERATION (Note 2, 3 and 5)

Unit

Frequency ………………………………………………

5.85 to 6.65

GHz

Heater Voltage (Note 4) ………………………………

6.3

V

Heater Current …………………………………………

4.5

A

Helix Voltage ……………………………………………

13.5

kV

Helix Current ……………………………………………

10.0

mA

Anode Voltage …………………………………………

11.8

kV

Anode Current …………………………………………

0.01

mA

Collector Voltage ………………………………………

8.25

kV

Cathode Current ………………………………………

1.4

mA

Saturated Output Power

……………………………

3.3

kW

Power Gain

at 500 W ………………………

51

dB

at 3 kW ………………………

45

dB

Gain Variation

at 500 W ………………………

1.5

dB/800 MHz

Gain Slope

at 500 W ………………………

0.02

dB/MHz

AM-PM Conversion

at 500 W ………………………………………

1.7

deg./dB

at 3 kW …………………………………………

3.0

deg./dB

3rd Order Intermodulation

(two equal carriers, 300 W total) ……………………

–31.5

dBc

Air Flow …………………………………………………

720

kg/hr

Air Pressure Drop

……………………………………

882.6

Pa

Note 1 : Absolute rating should not be exceeded under continuous or transient conditions. A single absolute

rating may be the limitation and simultaneous operation at more than one absolute rating may not be

possible.

Note 2 : The tube body is at ground potential in operation.

Note 3 : All voltages are referred to the cathode potential except the heater voltage.

Note 4 : The optimum operating parameters are shown on a test performance sheet for each tube.

Note 5 : These characteristics and operating values may be changed as a result of additional information or

product improvement. NEC should be consulted before using this information for equipment

design. This data sheet should not be referred to a contractual specification.