The 403LA Broadband Amplifier is a rugged source of RF power suitable for a variety of UHF signal distribution and general laboratory applications. It is a compact fully solid state design. It features low-level intermodulation distortion and inherent protection against short and open circuit loads. The 403 LA amplifies the inputs of AM, FM, SSB, pulse and other complex modulations within its output and bandwidth capability. E&I's 403LA surpasses the performance specifications of the ENI 403LA

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Download Manual PDF (490kb)

Flexible Operation

The 403LA produces 3 Watts of Class A linear output power over a frequency range of 150 KHz to 300 MHz with a nominal gain of 37 dB (+/-1dB). In order to provide exceptionally low levels of IMD, highly linear RF devices are used, with feedback, in the driver and output amplifier stages. All harmonics are more than 25 dB below the fundamental frequency at 2.7 Watts Pout.

Rugged Design

An integral power supply allows for operation directly from an input of 115/230 V single phase. Both the power supply and the forced air cooling are conservatively designed for operation over a wide temperature range.

Class of Operation

Class A

Frequency Range

150 KHz to 300MHz

Rated Output Power

3.0 Watts Gain 37 dB

Gain Flatness

+/- 1dB

Input For Rated Output

1 mw (0dBm)

Input Impedance / VSWR

50Ω 1.5:1

Output Impedance / VSWR

50Ω 2.5:1

Harmonic Level

< -25 dBc @ 2.7 W output

Ruggedness

OO :1 VSWR

IP3

+45 dBm Typical

Noise Figure

9 dB Typical

Spurious Output

<-60dBc

Primary Power

Single phase: 50/60 Hz
Standard: 115VAC +/- 10% @ 0.65 A
Optional: 230VAC +/- 10% @ 0.33 A

Temperature Range

0 to 45 degrees C

Cooling

Forced Air

Weight

7 lbs. (3.2 Kg)

Front Panel

Controls: AC On/Off
Indicators: AC Power On
Connectors: RF Input/Output (BNC)

Accessories Supplied

Rack mounting adaptors
Operation Manual
AC line cord