2

LD79U04K

TYPICAL OPERATIONS

Frequency Range ………………………………………… 13.75 –14.5 GHz

Power Output …………………………………………… 40 W minimum

Instantaneous Bandwidth ……………………………… 750 MHz

Gain Variation …………………………………………… 2.0 dB / 750 MHz

Gain

……………………………………………………… 25 dB (at Po = 40 W)

35 dB (at small signal)

Gain Stability

……………………………………………

± 0.25 dB / 24 h (25˚C±10˚C)

Gain Slope ………………………………………………… 0.02 dB / MHz

Harmonic Output ………………………………………… 15 dB below at rated output power

Spurious Output ………………………………………… –90 dBW in any 4 kHz band

in the 13.75 to 14.5 GHz

AM to PM Conversion

………………………………… 4.5˚/ dB at rated power

Intermodulation ………………………………………… 28 dB below each of two equal carriers

(total 8 W)

Group Delay

Linear component …………………………………… 0.1 ns / MHz

Ripple component …………………………………… 1.0 ns (p-p) in any 40 MHz band

RF Input

Connector ……………………………………………… Mates with Type SMA Female

VSWR …………………………………………………… 2.0 : 1 maximum

Load VSWR …………………………………………… Operate into 1.5 : 1 maximum

RF Output

Connector ……………………………………………… Mates with Type SMA Female

VSWR …………………………………………………… 2.0 : 1 maximum

Load VSWR …………………………………………… Operate into 1.5 : 1 maximum

Primary Power …………………………………………… –48 V

± 10%

Power Consumption …………………………………… 163 W

Electrical Connection …………………………………… DA-9-N D-Sub Connector

Dimensions

TWT

…………………………………………………… 178

× 33 × 25 mm

EPC ……………………………………………………… 220

× 140 × 47 mm

Weight ……………………………………………………… 2.5 kg

(both TWT and EPC)

ENVIRONMENTAL CONDITIONS

™ Ambient Temperature

–15˚C to +50˚C (operating)

–30˚C to +70˚C (non operating, storage)

™ Relative Humidity

90% maximum (non dewing)

™ Base Plate Temperature of the TWT

+90˚C maximum