1S2: Difference between revisions
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{{Plugin Sidebar| | |||
title=Tektronix 1S2| | |||
summary=Sampling system/TDR| | |||
image=1s2_front.jpg | | |||
caption=1S2 front view| | |||
years=1967 – 1972?| | |||
type=Combinedr| | |||
series=[[500-series scopes]]| | |||
manuals= | |||
* [http://w140.com/kurt/tek_1s2_sn1990-up.pdf 1S2 manual (PDF, sn 1990 and up)] | |||
* [http://www.pa4tim.nl/wp-content/uploads/2012/01/1S2calibrationPA4TIM.pdf 1S2 Calibration Guide by Fred Schneider, PA4TIM] | |||
* [http://www.pa4tim.nl/?p=3016 1S2 Page on the Website of Fred Schneider, PA4TIM] | |||
}} | |||
The 1S2 is a [[sampling oscilloscope|sampling]]/TDR plug-in for [[500-series scopes]]. | The 1S2 is a [[sampling oscilloscope|sampling]]/TDR plug-in for [[500-series scopes]]. | ||
Like the [[1S1]], it is a complete sampling subsystem and uses the mainframe | Like the [[1S1]], it is a complete sampling subsystem and uses the mainframe merely as a power supply and low-speed display. | ||
merely as a power supply and low-speed display. | |||
Unlike the 1S1, it contains pulsers that allows it to perform time-domain reflectometry (TDR) measurements. | Unlike the 1S1, it contains pulsers that allows it to perform time-domain reflectometry (TDR) measurements. | ||
The 1S2 has two 50 | The 1S2 has two 50 Ω pulsers, one of which is active at a time. One puts out a 250 mV pulse with 50 ps risetime. | ||
The other puts out a slower 1 | The other puts out a slower 1 V pulse. The sampling bridge is a feed-through type. | ||
For TDR measurements, the signal from one of the internal pulsers is fed through the sampler, | |||
and out to the the transmission line being tested. | For TDR measurements, the signal from one of the internal pulsers is fed through the sampler, and out to the the transmission line being tested. | ||
Returning pulses are detected as they pass back through the sampler, | Returning pulses are detected as they pass back through the sampler, and they are reabsorbed by the 50 Ω impedance of the pulser. | ||
and they are reabsorbed by the 50 | |||
Waveform output can be to the CRT of the mainframe and/or to a plotter | Waveform output can be to the CRT of the mainframe and/or to a plotter or low-speed data acquisition device via banana connectors on the front of the 1S2. | ||
or low-speed data acquisition device via banana connectors on the front of the 1S2. | |||
The 1S2 was [[introduced in 1967]] and was sold through 1971 or 1972. | The 1S2 was [[introduced in 1967]] and was sold through 1971 or 1972. | ||
==References== | ==References== | ||
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* [http://w140.com/kurt/50_years_sampling.pdf 50 Years of RF and Microwave Sampling, Mark Kahrs] | * [http://w140.com/kurt/50_years_sampling.pdf 50 Years of RF and Microwave Sampling, Mark Kahrs] | ||
* [http://www.picosecond.com/objects/AN-04.pdf Picosecond Pulse Labs Application Note 4: TDR] | * [http://www.picosecond.com/objects/AN-04.pdf Picosecond Pulse Labs Application Note 4: TDR] | ||
==Pictures== | |||
<gallery> | <gallery> | ||
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Image:1s2_bottom.jpg|bottom view | Image:1s2_bottom.jpg|bottom view | ||
</gallery> | </gallery> | ||
[[Category:Sampling plugins]] | |||
[[Category:500 series vertical plugins]] | |||
Revision as of 07:54, 9 May 2014
The 1S2 is a sampling/TDR plug-in for 500-series scopes.
Like the 1S1, it is a complete sampling subsystem and uses the mainframe merely as a power supply and low-speed display.
Unlike the 1S1, it contains pulsers that allows it to perform time-domain reflectometry (TDR) measurements. The 1S2 has two 50 Ω pulsers, one of which is active at a time. One puts out a 250 mV pulse with 50 ps risetime. The other puts out a slower 1 V pulse. The sampling bridge is a feed-through type.
For TDR measurements, the signal from one of the internal pulsers is fed through the sampler, and out to the the transmission line being tested. Returning pulses are detected as they pass back through the sampler, and they are reabsorbed by the 50 Ω impedance of the pulser.
Waveform output can be to the CRT of the mainframe and/or to a plotter or low-speed data acquisition device via banana connectors on the front of the 1S2.
The 1S2 was introduced in 1967 and was sold through 1971 or 1972.
References
- Tektronix TDR Measurement Concepts
- 50 Years of RF and Microwave Sampling, Mark Kahrs
- Picosecond Pulse Labs Application Note 4: TDR
Pictures
-
front view
-
left side view
-
right side view
-
bottom view
