Specifications

Frequency Range

4.0 to 18 GHz (see Selection Guide)

Rated Output Power

20 Watts CW. Saturated output power may exceed rated power by 6 dB or more near band center.

Output power is reduced by the insertion loss of all microwave options added at the output. (Options C,

D, E, J).

Small Signal Gain

35 to 40 dB (see Selection Guide). Typically 10 to 20 dB higher near band center. Gain at Saturated

Power is typically 5 dB less than small signal gain. Gain is reduced by the insertion loss of all

microwave options.

Gain Stability

0.25 dB/day at constant drive and temperature.

Gain Variation

10 dB peak-to-peak (typical), except M-Band 15 dB (typical)

Impedance

50 Ohms nominal

VSWR

Input:

2.0:1 typical

Output:

2.0:1 typical

Load:

1.3:1 max. for full spec compliance, 2.0:1 max. for no damage.

Any value without damage if Option D is included.

Noise & Spurious

-50 dBc typical excluding harmonics and residual modulation

Residual AM

-40 dBc

Residual FM

Less than 4 kHz peak-to-peak in any 5 MHz band

AM/PM Conversion

2.5/dB typical at 6 dB below rated output

Noise Figure

35 dB max.

Harmonic Content

-3 dBc at lower band edge decreasing to -15 dBc (typical) at upper band edge without optional

harmonic filter.

Meters, Monitors, Controls & Indicators

Meters

Helix Current, Filament Elapsed Time (Option H)

Monitors

Output Sample Port (Option E)

Controls

• Mains Power ON/OFF

• High Voltage ON/OFF and/or Fault Reset,

• Local/Remote (Option G)

• RF Attenuator (Option B)

Indicators

• Mains Power ON

• Operate/Standby

• Summary Fault

• Current Fault (TWT Helix)

Mechanical & Environmental

Ambient Temperature

0 to +40°C

Relative Humidity

95% non-condensing

Altitude

6,000 feet max.

Shock & Vibration

As normally encountered in a protected engineering laboratory environment

Cooling

Forced air with integral blower, air intake from sides and rear, exhaust at rear

RF Connectors

Type N (female), Front panel (rear panel, Option J)

Prime Power

115 Vac, ±10%, 50/60 Hz, single phase; (100 and 230 Vac, Options Q and K)

Power Consumption

400 Watts

Dimensions (WxHxD)

19 x 3.5 x 19.25 inches; 480 x 89 x 487 millimeters

Weight

35 lbs./15.9 kg. (max.)