11302

Manuals – Specifications – Links – Pictures

The Tektronix 11302 is a 500 MHz analog oscilloscope with a micro-channel plate CRT that can operate with 11000-series plug-ins or 7000-series plug-ins. Note, however, that the 7000 series plugins have mechanical interlock preventing them from being installed into an 11K mainframe. The 11302 includes a 500 MHz counter/timer. The 11302A version increased external counter input bandwidth to 750 MHz and added a readout mode button.

Except for the MCP CRT, the 11302 is basically the same as the 400 MHz 11301.

The 11301 and 11302 make use of a patented system for automatically calibrating all the way to the graticule (i.e., including CRT deflection sensitivity) by optically sensing the position of the beam with respect to the graticule and applying any necessary correction factors. This is discussed in the patent and also on page 9 of the Handshake article linked below which states:

Optical sensors on the CRT bezel sense when the beam crosses the graticule lines to factor this information into the auto cal control signals. As a result, accuracy of the 11300-Series is controlled from the plug-in input connector to the CRT graticule without operator intervention.

Key Specifications

Bandwidth	500 MHz
Sweep	5 ns/div to 500 ms/div, 1-2-5, ×10 magnifier (same specs for delayed time base)
Triggering	0.35 div (int) or 20 mV (ext) to 50 MHz, increasing to 1 div/150 mV at max. bandwidth
Trigger modes	DC, AC (>50 Hz), HF Reject (<30 kHz), LF reject (>80 kHz), TV (line or field)
X-Y operation	X from center plugin, bandwidth 3 MHz X-Y phase difference <1° to 1 MHz, <3° to 2 MHz
Features	gated internal counter (500 MHz bandwidth internal and external) internal measurements (RMS, p-p, mean, ...) cursors
Weight	44 pounds (20 kg)
Power consumption	240 W max

Links

Documents Referencing 11302

Document	Class	Title	Authors	Year	Links
Handshake 1986-1987 Winter.pdf	Article	11300-Series extends the usefulness of analog scopes	Dale Aufrecht	1986	11301 • 11302

Documents Referencing 11302A

(no results)

Patents that may apply to 11302

Page	Title	Inventors	Filing date	Grant date	Links
Patent US 4677340A	Method and apparatus for calibrating deflection in an oscilloscope	Lawrence J. Miller • Donald P. Chitwood	1984-12-24	1987-06-30	11301 • 11301A • 11302 • 11302A

Patents that may apply to 11302A

Page	Title	Inventors	Filing date	Grant date	Links
Patent US 4677340A	Method and apparatus for calibrating deflection in an oscilloscope	Lawrence J. Miller • Donald P. Chitwood	1984-12-24	1987-06-30	11301 • 11301A • 11302 • 11302A
Patent US 4705961A	Programmable sweep generator	Walt Ainsworth • Art Metz	1986-01-21	1987-11-10	155-0240-00 • 2445 • 2465 • 2465A • 2465B • 2467 • 2467B • 11302A • SCD1000

Internals

The 11302 contains a 77 nanosecond delay line.

Full calibration of an 11302 requires the use of the TEKCATS software.

Prices

Year	1987 (11302)	1990 (11302A)
Catalog price	$12,950	$14,500
In 2023 Dollars	$35,100	$34,100

Pictures

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  11302 front

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  11302 back

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  11302A

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  11302A

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  11302A

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  11302A

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  11302A

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  11302A

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  11302A

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  11302A

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  11302A

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  11302A

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  High Voltage Power Supply

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  High Voltage Power Supply

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  Bottom board with trigger, sweep, and horizontal amplifier

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  Front panel interface board

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  Firmware EPROMs

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  Top internal view

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  A11 Main Processor board

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  Intel D2817A holds calibration constants

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  HV parts location