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The Tektronix 2247A is a 100 MHz four channel* analog oscilloscope, with a built-in 200 MHz counter/timer. It is unknown if a 2247 (no A) was ever built. It's part of a nearly identical family consisting of the [[2245]], [[2246]], 2247, and [[2252]].  
{{Oscilloscope Sidebar |manufacturer=Tektronix |designers= |
series=2000-series scopes|model= 2247A |
summary=100 MHz portable 4-channel scope |
image=2247A.JPG |
caption=Tektronix 2247A |
introduced=1989 |
discontinued=1995 |
manuals=
* [[Media:070-6373-01.pdf|Tektronix 2247A Operators Manual]] (PDF,OCR,31MB)
* [[Media:070-6373-01_two-up.pdf|Tektronix 2247A Operators Manual]] (two-up,PDF,OCR,36MB)
* [[Media:070-6367-00.pdf|Tektronix 2247A Service Manual]] (PDF,OCR,39MB)
* [[Media:Tektronix_2245A_2247A_OPT15-OCR.pdf|Tektronix 2247A Option 15 Manual ]] (PDF,OCR,0.4MB)
* [[Media:Tek_2252_2247A_2245A_Specs.pdf|Tektronix 2245A/2247A/2252 Specifications ]] (PDF)
* [[Media:2252_2247A_2245A_Specs.pdf|Tektronix 2245A/2247A/2252 Specifications ]] (PDF, OCR, bad-OCR)
}}
The '''Tektronix 2247A''' is a 100 MHz four-channel analog oscilloscope with a built-in 200 MHz counter/timer. (It is unknown if a 2247 non-A model was ever built.)  Channels 1-2 are fully-functional, whereas 3-4 are limited in both deflection factor and coupling, as they are intended mainly for digital and trigger signals.


Two channels are fully-functioned, and two are very limited, in both deflection factor and coupling.  
The 2247A includes the same features of the 2246 plus a Counter/Timer (C/T) integrated into the trigger system to provide many automated counting and timing measurements of frequency, period, width, totalize, frequency ratio, gated frequency, gated period, gated width, gated events, delta time, one-over-delta time, phase, rise/fall time, and propagation delay, using an internal or external freeuency standard.


* [http://www.ko4bb.com/Manuals/09%29_Misc_Test_Equipment/1%29_Brochures_and_Datasheets/TEK%202252,2247A,2245A%20SPECS.PDF Tektronix 2245A/2247A/2252 Specifications (PDF)]
{{BeginSpecs}}
* [http://n2xp.com/2247A.pdf Tektronix 2247A Operators Manual (PDF)]
{{Spec | Bandwidth | 100 MHz }}
* [http://w140.com/mmm/tek-2247a.pdf Tektronix 2247A Service Manual (PDF)]
{{Spec | Deflection| CH 1, CH 2: 2 mV/div to 5 V/div in 1-2-5 seq; CH 3, CH 4: 0.1 V/div and 0.5 V/div, all ±2%; BW Limit: 20 MHz ±15% }}
* [http://www.ko4bb.com/Manuals/Tektronix/Tektronix_-_2245A/Tektronix_2245A_2247A_OPT15.pdf Tektronix 2247A Option 15 Manual (PDF)]
{{Spec | Vertical Operating Modes | CH1,2,3,4, CH2 Invert, Add, Alt, Chop (625 kHz) }}
* [http://www.ko4bb.com/Manuals/04)_ROM_Images_and_Drivers/Tektronix_2247A_Firmware_Image.rar Tektronix 2247A Firmware Image (RAR File)]
{{Spec | Input Impedance| 1 MΩ ±1.0% // 20 pF ±1 pF }}
* [http://www.ko4bb.com/Manuals/04)_ROM_Images_and_Drivers/Tek_2247A/Tektronix_2247A_ROM_dumps_both_main_ROM_and_charater_ROM_EPROM.tar.bz2 Tektronix 2247A ROM Dumps (Both main ROM and Character ROM EPROM) (.tar.bz2)]
{{Spec | Maximum Input Voltage| 400 V (DC + peak AC) or 800 V (p-p ac at ≤ 10 kHz) }}
{{Spec | Sweep Speeds| A Time Base: 0.5 s/div to 20 ns/div in 1-2-5 seq; B Time Base: 5 ms/div to 20 ns/div in 1-2-5 seq (×10 magnifier to 2 ns/div) }}
{{Spec | Trigger| DC, Noise Reject, HF Reject, LF Reject, AC, TV Line, TV Field }}
{{Spec | Trigger Modes| A Mode: Auto Level, Auto, Norm, TV Line, TV Field, Single Seq. B Mode: Runs After Delay, Auto Level, Norm, TV Line (From A Source) }}
{{Spec | Trigger Source A & B| Vert, CH1, 2, 3, 4, Line }}
{{Spec | Voltmeter| DC, +Peak, −Peak, PK-PK, Gated Volts, Smart Tracking Cursors: Volts, Gnd, Trigger Lvl }}
{{Spec | Counter/Timer| Freq, Period, Width, Totalize, Freq Ratio, Sec, 1/Sec, Phase, Rise/Fall Time, Prop Delay Time }}
{{Spec | Cursors| Time, 1/Time, Delta Time, 1/Delta Time, Delta Phase, Volts }}
{{Spec | Interface| Ext Counter/Timer Base Input connector; Ext Z-Axis Input connector }}
{{Spec | Probes| Two [[P6109]] 100 MHz ×10 probes, [[BNC connector]] with a [[readout pin]] }}
{{Spec | Power| 100 W max, 90 − 250 V<sub>AC</sub>, 48 − 445 Hz }}
{{EndSpecs}}


==Pictures==


<gallery>
<gallery>
Image:2247A.JPG|Front
2247A.JPG|Front
US Tektronix 2247A Inside1RAW.jpg
2247A frequency measurement.jpeg
2247A voltage measurement.jpeg
</gallery>
</gallery>


[[Category:2246 series scopes]]
[[Category:2246 series scopes]]
[[Category:Specifications needed]]