Additional Features: Frequency Range: 0.8 MHz to 1 GHz Rated Linear Power Level: 3W (minimum) Harmonic Distortion (3W): -18 dBc minimum; -20 dBc typical Third Order IM Intercept Point: +45 dBm, typical Small Signal Gain: 37 dB minimum; 40 dB nominal Noise Figure: 10 dB maximum Input VSWR: 2.5:1 maximum Output VSWR: 3:1 typical Load/Source Impedance & VSWR for Ratings: 50 Ohm nominal at 1.1:1 VSWR maximum Safe Load VSWR/Mismatch Limit: Unlimited at any phase (within performance ratings) Input Overdrive Limit: +13 dBm or 1 Vrms maximum RF Stability: Unconditional (within performance ratings) The 603L Broadband Power Amplifier is an ultra wideband, class A, solid state amplifier that is capable of delivering over 3 watts of power with a flat frequency response from 800 kHz to 1 GHz. It will accept CW, AM, FM, SSB, pulse, wideband sweep and other complex modulations.