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Tektronix 1L30
10.5 GHz Spectrum Analyzer plug-in
1L30 front

Compatible with 500-series scopes

Produced from 1965 to 1971

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

The Tektronix 1L30 is a 10.5 GHz spectrum analyzer plug-in for 500-series scopes. It covers the frequency range from 1 GHz to 10.4 GHz.

The 1L30 was originally the third-party Pentrix L-30. The model number was changed some time after Tektronix took over Pentrix in 1964.

Key Specifications

Frequency range 1 GHz to 10.4 GHz
Sensitivity –105 to –75 dBm
Dispersion 15 kHz to 60 MHz, magnifier usable to 2.5 kHz
Resolution bandwidth 1 kHz to 100 kHz, variable
Display log, lin, square, video


1965: $1,995 ($19,400 in 2023 dollars)



Some Parts Used in the 1L30