From TekWiki
Revision as of 09:18, 12 October 2023 by Peter (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
Tektronix 7K11
CATV preamplifier

Compatible with 7000-series scopes

Produced from 1974 to 1986

(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 7K11 is a cable TV pre-amplifier plug-in for 7000-series scopes and a cousin to the AM511. It is intended for use with a 7L12 or 7L14 set to a –30 dBm reference level (on its 50 Ω input). The reference level selected on the 7K11 is calibrated in dBmV. It has its own built-in calibrator with 75 Ω output impedance. All RF connectors are BNC.

Key Specifications

Frequency Range 30 to 890 MHz
Input Impedance 75 Ω
VSWR <2:1
Reference Level +79 dBmV to 0 dBmV in 1 dB steps
Output to Spectrum Analyzer set to –30 dBm, 50 Ω
Intermodulation >70 dB down
Calibrator +30 dBmV, 50 MHz, 75 Ω


Documents Referencing 7K11

Document Class Title Authors Year Links
26AX-3582-3.pdf Application Note FM Broadcast Measurements Using the Spectrum Analyzer Clifford B. Schrock 1981


1980: $575 (~$2,100 in 2023 Dollars)