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Communications & Power Industries VZSC2780P2
CPI 900W S/C-Band TWT System ( 1000W CLASS )

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Catalog Description

Communications & Power Industries VZSC2780P2

2GHz to 8GHz Power Amplifier
Provides 900 watts of power in the 2.0 to 8.0 GHz frequency band in a compact
19-inch rack-mount multiple drawer configuration for wideband testing.

Employs CPI dual-depressed collector helix traveling wave tubes, increasing
efficiency by a nominal 20% over conventional single collector TWTs, and a
power supply designed with a minimum number of parts for maximum uptime.


Frequency: 2.0 to 8.0 GHz
TWT Model Number: VTG6292 (modified)
Output Power:
Combined TWTs 1000 W min.
Flange 900 W min.

Bandwidth: 6.0 GHz
Gain: 60 dB min. at rated power output
63 dB typ. at small signal

RF Level Adjust: 0 to 20 dB continuous

Output Power Adjust +/- 0.1 dB
Gain Stability (typical) +/- 0.25 dB/24 hr max.
(at constant drive and temp.)
Small Signal Gain
Slope: 0.02 dB/MHz max.
Variation 10.0 dB pk-pk max. over the
(typical) 6 GHz bandwidth

Input VSWR 1.4:1 max.

Output VSWR 2.0:1 max.

Load VSWR 2.0:1 max. for full spec compliance;
any value without damage

Residual AM: -45 dBc up to 4 kHz;
-20 [1.25 + log F (kHz)] dBc,
4 kHz to 500 kHz (F in kHz);
-80 dBc above 500 kHz

Harmonic Content -8 dBc typ. at 2 GHz

Primary Power 208/120 V 10%, or
3 phase, 5 wire 380-415/220-240 V +/-10%,
47-63 Hz;
5 wires are: Phase 1, 2 & 3, neutral and ground
connection. Neutral (wire 5 can be used if available)

Power Factor 0.90 min. (at 50 Hz)
Power Consumption 13.8 kVA typ. 15.0 kVA max.

Cooling (TWT) Forced air with integral blower and power supply fan.
Maximum xternal pressure loss allowable: 0.25 inch water gauge.

RF Input Connection Type N female
RF Output Connection Type SC female
RF Power Monitors Type-N female

LengthWidthHeightShip Wt
44.45 cm 48.26 cm 264.16 cm 590.91 kg
N/A Currently not available for sale


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