CATV Preamplifier 7K11

The 7K11 is a 7000-Series Plug-in Preamplifier to be used with the 7L12 or 7L13 to provide the full 75 Ω environment that is particularly useful in CATV spectrum analysis.

In CATV, for example, the 7K11 provides the additional 19 dB of gain for a lower noise and better sensitivity. With the 7K11 and a 7L12 or 7L13, CRT READOUT will display reference levels from +79 dBmV to 0 dBmV in 1-dB steps. The 7K11 occupies one plug-in channel.
 

CHARACTERISTICS

Frequency Range: 30-890 MHz.

Flatness:  50-300 MHz ±0.5 dB. 30-890 MHz ±2 dB.

Impedance: 75Ω, 2:1 VSWR no Atten. 1.5:1 VSWR 10 dB Atten.

Reference Level: +79 dBmV to 0 dBmV in 1-dB steps. Indicated on front panel and readout on CRT.

Calibrator: 50 MHz ±0.01% @ +30 dBmV ±0.3 dBmV.

Output Signal: -30 dBm ±0.5 dB, 50 Ω. Normally connected to analyzer input.

Intermodulation Distortion: At 7K11 output down 85 dB for tw full screen signals. (Intermodulation performance of a 7K11/ 7L12 will be essentially that of the 7L12 alone.)

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