The 630L broadband RF power ampiifier system is a rugged source of RF power for automated test systems, broadband communications testing, communication work and general laboratory use. With Class A iinearity, automatic level control, exceptional meter accuracy and standard IEEE interface, the 630L redefines the state-of-the-art for a full featured, solid-state UHF Amplifier The 630L produces 30W of linear RF power output over an instantaneous frequency range of 400 to 1000MHz. Small signal gain is rated at 51 dB nominal with ±2.0dB maximum flatness in the ALC (Automatic Level Control) OFF' mode. In the ALC ON’ mode, power output level is controlled by the front panel power adjust knob or the remote interface over a 30dB range. The internal ALC loop can be AM and pulse modulated through the front pane! modulation input port. The Amplifier will withstand a +13dBm RF input signal (1Vrms) and is fully protected against RF input overdrive, out-of-band operation, output load VSWR and overtemperature. Load VSWR protection folds back the forward power above 3.0:1 VSWR without causing a power cutoff. The 630L amplifies the inputs of CW, AM, Pulse, FM and phase signals with -20dBc minimum harmonic distortion and provides unconditional RF stability within the specified performance ratings. The amplifier's automatic level control (ALC), operating through a servo loop feedback system, maintains RF power output flatness with an accuracy of ±0.3dB. For easy link-up to ATE (Automatic Testing Equipment) components the 630L is equipped with a standard IEEE 488.2 interface for remote computer control. A μΡ (micro-processor) controlled alphanumeric vacuum fluorescent display clearly indicates forward, reflected and set power in Watts or dBm with a resolution of ±1W or 0.1 dB. Bright LEDs on the front panel indicate operating parameters such as ALC On/Off, RF On/Off, Modulation On/Off, Watts/dBm, Remote Enable, and Fault Reset. The 630L is a forced-air cooled system (front panel in, rear panel out) and the integral Power Supply are conservatively rated to permit operation over a wide range of temperature and AC line conditions. For testing applications the 630L incorporates RFI shielding to restrict RF emissions from the Amplifier The amplifier's modular, solid-state design facilitates maintenance and service. Although packaged for bench mounting, the unit may be rack mounted with the optional rack-mounting brackets. The 630L Broadband Power Amplifier is backed by ENI's one-year warranty and worldwide network of service and technical support. Rugged, compact and reliable, the 630L provides the ultimate in flexibility and versatility for broadband testing and general laboratory use.