EM-6990B | Broadband Preamplifier

The EM-6990B Broadband Preamplifier is used primarily with the EM-6992 Near Field Probe Set in performing EMI diagnostic testing. The EM-6990B provides a significant improvement in overall measurement sensitivity of the typical spectrum analyzer. Powered by an external +15V DC input, the EM-6990B features an integrated voltage regulation and filtering circuitry, ensuring reliable operation for both bench and field-testing scenarios.

Applications
The EM-6990B is a quality preamplifier with high performance, suitable for several applications. It improves the sensitivity of the EMI analyzers, spectrum analyzers, oscilloscopes and many other devices without distortion of amplitude accuracy.

Electrical

Frequency Range: 10 kHz – 2 GHz
VSWR: 1.5:1 Average Input
1.7:1 Average Output
Gain: 31dB Typical above 1MHz
29 dB @ 100kHz
18 dB @ 10kHz
1dB Compression: -25dBm Nominal
Noise Figure: 4.75 dB Average above 10MHz
Gain Flatness: +/- 1 dB Typical
Impedance: 50Ω, Nominal
Connector: BNC (F) (EM-6990B | 10kHz – 2GHz)
Power Source: 15V 1A DC Power Supply (Included)

Mechanical

Dimensions

Length: 76.00 mm (3.00 in.)
Width: 39.37 mm (1.55 in.)
Height: 46.50 mm (1.83 in.)
Weight: 400g (0.4 lbs.)

Color Options
Black

Optional Accessories
15V, 1A DC Power Supply (Included)
EM-6992 Near Field Probe Kit
BNC (m) to BNC (m) coaxial cable, 3ft.

Data Sheet

EM-6990B Datasheet