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-The Tektronix 2247A is a 100MHz four channel* analog oscilloscope, with a built-in 200MHz 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://w140.com/mmm/tek-2247a.pdf Tektronix 2247A Manual (PDF)]
+{{BeginSpecs}}
+{{Spec | Bandwidth | 100 MHz }}
+{{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%  }}
+{{Spec | Vertical Operating Modes | CH1,2,3,4, CH2 Invert, Add, Alt, Chop (625 kHz) }}
+{{Spec | Input Impedance| 1 MΩ ±1.0% // 20 pF ±1 pF }}
+{{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>
+A.JPG|Front
+US Tektronix 2247A Inside1RAW.jpg
+A frequency measurement.jpeg
+A voltage measurement.jpeg
+</gallery>
+[[Category:2246 series scopes]]