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* [[Media:26AX-3582-3.pdf|FM Broadcast Measurements Using the Spectrum Analyzer]] | * [[Media:26AX-3582-3.pdf|FM Broadcast Measurements Using the Spectrum Analyzer]] | ||
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The '''Tektronix 7L13''' is a 1 kHz to 1.8 GHz Spectrum Analyzer plug-in for [[7000-series scopes]], designed by [[Fred Telewski]] who also led the [[TR502]] development. | |||
From 1977 on, a modified version with coverage up to 2.5 GHz was available upon request (no official option listed in the catalog). | |||
It is similar to the [[7L12]] but occupies three module bays, adds a marker function, offers resolution bandwidth down to 30 Hz, and improves sensitivity by 10 dB. It also displays the center frequency in the [[7000 series readout system|CRT readout]] as well as on a LED display. | It is similar to the [[7L12]] but occupies three module bays, adds a marker function, offers resolution bandwidth down to 30 Hz, and improves sensitivity by 10 dB. It also displays the center frequency in the [[7000 series readout system|CRT readout]] as well as on a LED display. | ||