1S2: Difference between revisions

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The 1S2 is a [[sampling oscilloscope|sampling]]/TDR plug-in for [[500-series scopes]].  
{{Plugin Sidebar 2 |
Like the [[1S1]], it is a complete sampling subsystem and uses the mainframe  
title=Tektronix 1S2|
merely as a power supply and low-speed display.   
summary=Sampling system/TDR|
image=1s2_front.jpg |
caption=1S2 front view|
introduced=1967 |
discontinued=1973 |
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 '''Tektronix 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 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-ohm pulsers, one of which is active at a time.  One puts out a 250mV pulse with 50ps risetime.   
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 rise time.   
The other puts out a slower 1 volt pulse.  The sampling bridge is a feed-through type.   
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-ohm impedance of the pulser.   
 
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.


* [http://w140.com/kurt/tek_1s2_sn1990-up.pdf 1S2 manual]
The 1S2 was [[introduced in 1967]] and was sold through 1972.


==References==
==Links==


* [http://slack.com/TE/TekConcepts/TekTDRMeas.pdf Tektronix TDR Measurement Concepts]
* [[Media:062-1244-00.pdf | Tektronix 062-1244-00: Time-Domain Reflectometry Measurement Concepts]], James A. Strickland, 1969. pages. PDF, OCR, 6.2 MB
* [[Media:Service Scope 45 Aug 1967.pdf  | Service Scope No. 45, August 1967 - Time-Domain Reflectometry Theory]]
* [[Media:Service Scope 38 Jun 1966.pdf | Service Scope No. 38, June 1966 - Tektronix Type 1S2 Makes Reflectometry Easy]]
* [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>
Image:1s2_front.jpg|front view
1s2_front.jpg|front view
Image:1s2_left.jpg|left side view
1s2_left.jpg|left side view
Image:1s2_right.jpg|right side view
1s2_right.jpg|right side view
Image:1s2_bottom.jpg|bottom view
1s2_bottom.jpg|bottom view
Tek 1s2 e 1.jpg|time mode
Tek 1s2 e 2.jpg|distance mode
Tek 1s2 e 3.jpg
Tek 1s2 e 4.jpg
Tek 1s2 e 5.jpg
Tek 1s2 e 6.jpg
Tek 1s2 e 7.jpg
</gallery>
</gallery>
[[Category:Sampling plugins]]
[[Category:Time-domain reflectometers]]
[[Category:500 series plugins]]

Revision as of 17:27, 1 August 2017

Template:Plugin Sidebar 2 The Tektronix 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 rise time. 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 1972.

Links

Pictures