7L18: Difference between revisions

Jump to navigation Jump to search

7L18 (view source)

Revision as of 01:42, 27 March 2022

462 bytes added ,  27 March 2022
no edit summary
No edit summary
No edit summary
Line 17: Line 17:
It occupies three plug-in bays in the oscilloscope.
It occupies three plug-in bays in the oscilloscope.


{{MissingSpecs}}
{{BeginSpecs}}
 
{{Spec | Frequency range | 1.5 GHz to 18 GHz with the internal mixer, 12.5 GHz to 60 GHz using external mixers }}
The 7L18 covers the range from 1.5 GHz to 18 GHz with the internal mixer and 12.5 GHz to 60 GHz using external mixers.
{{Spec | Frequency span | 0; 200 Hz/Div to 500 MHz/Div in 1−2−5 steps; Max (see note below) }}
Note that it will NOT do 1.5 GHz to 18 GHz in one span, it will only max span the range selected by the BAND/HARMONIC control.
{{Spec | Resolution bandwidth | 30 Hz to 3 MHz in decade steps}}
This range is determined by the heterodyne harmonic number and sign (sideband) and the range of the first LO, which is 2 GHz to 4 GHz.
{{Spec | Vertical scale | 10 dB/Div, 2 dB/Div, or linear }}
 
{{Spec | Input attenuator |  0 dB to 60 dB in 10 dB steps }}
The input attenuator range is 0 dB to 60 dB in 10 dB steps and is a standard Weinschel Engineering product driven by a belt. 
{{Spec | Sweep | 1 μs/Div to 20 s/Div, auto, ext, or manual }}
The range is encoded for the digital dBm reference level display.
{{Spec | Digital functions | two memory banks (A, B); Display A, B - A saved, peak hold }}
The signal then passes through a YIG preselector filter with a 50 MHz bandwidth.
{{EndSpecs}}
After the YIG filter, the signal enters the RF input of the mixer assembly.
''Please expand '' [[Category:Specifications needed]]


==Context==
==Context==
Line 46: Line 46:


The 7L18's components are controlled by an [[Intel 4004]] 4-bit microprocessor.
The 7L18's components are controlled by an [[Intel 4004]] 4-bit microprocessor.
The 7L18 will NOT do 1.5 GHz to 18 GHz in one span, it will only max span the range selected by the BAND/HARMONIC control. This range is determined by the heterodyne harmonic number and sign (sideband) and the range of the first LO, which is 2 GHz to 4 GHz.
The input attenuator is a standard Weinschel Engineering product driven by a belt. 
The range is encoded for the digital dBm reference level display.
The signal then passes through a YIG preselector filter with a 50 MHz bandwidth.
After the YIG filter, the signal enters the RF input of the mixer assembly.


==Links==
==Links==
Retrieved from "https://w140.com/tekwiki/wiki/Special:MobileDiff/73866"

Navigation menu