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Spectrum Analyzers
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Features & Benefits
2711
- Economical, CanBe Configured to Meet Most Budgets
- High Portability
- Internal or External Tracking-Generator Option
- InternalFrequency Counter (Opt. 02)
- GPIB or RS-232 Interface Option
- Excellent Frequency Accuracy and Sensitivity
- 3-ControlOperation for Most Measurements
- UL Listed 1244, CSA Bulletin556B
2712
- High Value, Low Cost
- 5 × 10-7 Frequency Accuracy
- Sensitivity to -139 dBm(-92 dBmV) with Built-In Preamp
- Internal Frequency Counter
- 4-Trace Digital Plus True-Analog Display
- 124 K of RAM
- Easy to Use
- Dedicated Numeric Keypad Plus Logically-GroupedMenu Keys
- Powerful Built-In Measurement Routines
- EMC Measurements with Optional Quasi-Peak Detector
- SweptMeasurements to 1.8 GHz with Optional Internal or External TrackingGenerator
- UL Listed 1244, Certified CSA C22.2 No. 231-M89
Applications
- Broadcast Transmitter Performance
- Communications System Operations
- EMC PrequalificationTesting
2712Spectrum Analyzer
The Tektronix 2712 Spectrum Analyzer providesexcellent RF performance, a built-in frequency counter, full programmability,digital and true-analog displays, high portability, enough nonvolatilememory for 108 saved displays, and much more.
A straightforwardhuman interface, with conveniently grouped, dedicated front-panelkeys and simple, menu-driven functions makes the 2712 easy to learnand use. You can set frequency, span, and reference level directlyfrom the front panel. A real-time clock provides an on-screen dateand time display, plus date/time stamp capability for waveform printouts.
Frequency-corrected tuning and phase-lock stabilization enhancethe ability to resolve close-in signals and reliably demodulate narrowbandsignals. Sensitivity up to -127 dBm (-80 dBmV) at 300-Hz resolutionbandwidth (RBW) lets you see weak signals. The built-in preamp canimprove sensitivity another 12 dB, up to -139 dBm (-92 dBmV). Up to80-dB on-screen dynamic range ensures visibility of weak signals inthe presence of strong ones.
A 300 Hz RBW filter with a shapefactor <7:1 means you'll see many close-in sidebands and spuriousor unexpected signals you might otherwise miss. At the other end ofthe spectrum the 5-MHz RBW filter is useful when demodulating widebandsignals such as actively modulated video carriers.
The built-insignal counter, with 0.5 ppm ±10 Hz accuracy, offers added power forrapidly identifying signals. The capability to choose between digitaland true-analog displays lets you examine signals for characteristicsthat are not visible on digital-only displays.
Sweep speedsof 1 µsec/div, TV Line and TV Field triggering, an internal audioamplifier, AM/FM detectors, and the optional Video Monitor Mode allmake video communications measurements easier.
Bandwidth, Carrier-to-Noise,Noise Power, Signal Search, and FM Deviation modes provide additionalmeasurement power and convenience. Occupied Bandwidth Mode, with percentsettable from 1 to 99%, aids in broadcast and radio measurements.
The optional internal or external tracking generator provideshigh dynamic range swept measurements to 1.8 GHz.
EMC Measurement
To help simplify your EMC measurements, the 2712 offers an optionalquasi-peak detector, EMI resolution bandwidth filters, and fully correctedE-field intensity measurements to assist in precertification and troubleshooting.EMC ancillary devices are available to provide a complete measurementsolution.
2711
2711 Spectrum Analyzer
The 2711 offers a wide range of features at an extremely affordableprice. This value leader is well-suited for checking broadcast transmitterperformance and communications system operations, looking for unwantedRF emissions, testing two-way communications equipment, maintainingindustrial security, and teaching frequency domain concepts in theclassroom, plus a wide variety of other applications.
The standard2711 shares many of 2712's valuable features, such as compact sizeand light weight (9.5 kg, about 21 lbs.). Both instruments can alsobe quickly converted to rack operation with optional rackmount adapters.
Frequency accuracy is 1 × 10-5 and sensitivity isup to -117 dBm (-70 dBmV) at 3 kHz RBW. The built-in preamp can addanother 12 dB, up to -129 dBm (-82 dBmV). Up to 80-dB on-screen dynamicrange helps see weak signals, even when strong ones are present.
True-analog display capability, along with fast sweep speedsand TV Line and TV Field triggering provide convenient demodulationof video carriers for making depth-of-modulation checks or lookingat special baseband data, VITS, and many other signals.
Aninternal audio amplifier and AM/FM detectors let you hear demodulatedsignals, using either the built-in speaker or headphone jack, forfast signal identification and troubleshooting in communications applications.
With the Video Monitor (Opt. 10) installed, you can view broadcast(AM) TV signals or down-converted satellite (FM) signals.
The2711 can also be used with a set of near-field probes as a handy EMCdiagnostic tool.
Selection Guide
Capability | 2712 | 2711 |
---|---|---|
Frequency Range | 9 kHz to 1.8 GHz | 9 kHz to 1.8 GHz |
±0.5 ppm Freq. Accuracy | Std. | NA |
Signal Counter | Std. | Opt. 02 |
GPIB Interface | Std. | Opt. 03 |
Internal Tracking Gen. | Opt. 04 | Opt. 04 |
External Tracking Gen. | Opt. 05 | Opt. 05 |
RS-232C Interface (replaces GPIB) | Opt. 08 (no charge) | Opt. 08 (no charge) |
Video Monitor Mode | Opt. 10 | Opt. 10 |
EMC Precertification | Opt. 12 | NA |
Measurements | ||
TV Sideband | Opt. 15 | Opt. 15 |
Adapter Interface | ||
Nonvolatile Memory | 124 K | 28 K (124 K with Opt. 03 or 08) |
High Portability | Yes | Yes |
Both Digital and True-Analog Displays | Yes | Yes |
Dedicated Numeric Keypad | Yes | Yes |
Real-Time Clock | Std. | With Opt. 03 or 08 |
Characteristics
The following characteristicsapply to both the 2712 and 2711 after a 15-minute warm-up period,unless otherwise noted.
Frequency Related
FrequencyRange - 9 kHz to 1800 MHz
Center Frequency Accuracy-
2712: 5×10-7 of CF ±700 Hz
2711: 1×10-5 of CF ±5 kHz
Frequency Counter Accuracy(Std. 2712, Opt. 02 2711) -
2712: 5×10-7 of CF±10 Hz, ±1 LSB
2711: 1×10-5 of CF ±10 Hz, ±1 LSB
Dot Marker Frequency Accuracy*1 - CFAccuracy ±3% of span
Long-term Drift*1 -
2712: 2 ppm/yr
2711: 10 ppm/yr
Short-termDrift -
2712: ≤400 Hz maximum drift between correction cycles
2711: ≤20 kHz maximum drift between correction cycles
Residual FM -
2712: ≤100 Hz pk-pk/20 msec at ≤20 kHzspan/div; ≤2 kHz pk-pk/20 msec at >20 kHz span/div
2711: ≤2 kHzpk-pk/20 msec
Resolution Bandwidth (-6 dB) -
2712: 5 MHz, 300 kHz, 30 kHz, 3 kHz, 300 Hz
2711: 5 MHz, 300 kHz,30 kHz, 3 kHz
2712 with Opt. 14: Add 1 MHz, 100 kHz, 10 kHz,and 1 kHz
2712 with Opt. 12: Add 1 MHz, 120 kHz, 9 kHz, 1 kHz- 200 Hz replaces 300 Hz filter
Resolution BandwidthShape Factor (60 dB/6 dB) - ≤7:1 for RBW ≤1 MHz
NoiseSidebands - ≤70 dBc at 30 × RBW
Video Filter - Ram booster pro v5.0.1 keygen.
Approx. 1/100 (Auto) of RBW
Manual Selection: 3 Hz to300 kHz in 1-3 sequence
Freq. Span/Div. Range -
2712: 180 MHz to 1 kHz
Zoombinis logical journey mac. 2711: 180 MHz to 10 kHz selectedin 1-2-5 sequence or within two significant digits through a menu
Span Accuracy - ±3% over the center eight divisions
Amplitude Related
Flatness - ±1.5 dB measuredwith 10 dB internal RF attenuation (preamp off).
VerticalDisplay Modes - 10, 5, 1 dB/div, Linear.
MeasurementRange -
2712: -139 (preamp on) to +20 dBm (-92 to +67 dBmV).
2711: -129 (preamp on) to +20 dBm (-82 to +67 dBmV).
Display Dynamic Range - 80 dB max (limited to 40 dB inoptional 2712 Quasi-Peak Detector mode).
Reference LevelRange -
LOG Mode: -70 to +20 dBm (-23 to +67 dBmV), or to-90 dBm with preamp on.
LINEAR Mode: 8.8 µV to 280 mV.
Reference Level Steps -
LOG Mode: 1 dB or 10 dB.
LINEAR Mode: 1-2-5 sequence.
Mixer Input Level- Automatically controlled by instrument for on-screen signals.Level selectable between -20 to -50 dBm (+27 to -3 dBmV).
Display Amplitude Accuracy -
10 dB/div: ±1.0 dB/10 dB tomax. cum. error of ±2 dB over 70 dB range; ±2.0 dB/10 dB over 70-80 dBrange.
5 dB/div: ±1.0 dB/10 dB to max. cum. error of ±2 dBover 40 dB range.
1 dB/div: 1 dB max. error over 8 dB range.
Linear Mode: ±5% of full scale.
RF AttenuationRange - 0 to 50 dB, 2 dB steps.
Sensitivity -
2712: -127 dBm (-80 dBmV) at 300 Hz RBW, -139 dBm (-92 dBmV) at 300 HzRBW with preamp on (to 600 MHz).
2711: -117 dBm (-70 dBmV)at 3 kHz RBW, -129 dBm (-82 dBmV) at 3 kHz RBW with preamp on (to600 MHz).
Spurious Response (Preamp Off)
Residual Spurious Response - ≤-100 dBm referenced to input of1st mixer
3rd Order IM Distortion - ≤-70 dBc, fromany two on-screen signals within any frequency span measured with1st mixer input level of ≤-30 dBm (+17 dBmV)
2nd HarmonicDistortion - ≤-66 dBc measured with 1st mixer input level of ≤-40 dBm(+7 dBmV)
Input Related
LO Emission - ≤-70 dBmwith 0 dB RF attenuation
RF Input - Type-N connector,50 ohm
VSWR with 10 dB or More RF Attenuation - 1.5:1 max
Maximum Safe Input - +20 dBm (+67 dBmV) (0.1 W) continuouspeak with 0 dB RF attenuation; 100 V DC (initially applied with fullattenuation)
1 dB Compression Point - ≥-15 dBm (+32 dBmV)with 0 dB RF attenuation
Sweep Related
Sweep Times- 1 µsec to 2 sec/div in 1-2-5 seq. (7-decade range); AUTO SWEEPmode; MANUAL SWEEP select
Sweep Time Accuracy - ±10%over the center eight divisions
Trigger - Free run,internal, external, line, TV field, TV line, single sweep, manualscan
Trigger Amplitude -
Internal: One divisionor more of signal
External: Min. 1.0 V peak, (15 Hz to 1 MHz)
Input/Output Characteristics
External Trigger*1 -
BNC connector, 10 kilohm impedance, DC coupled0.1 µs min.
Service Manual Bmw
Pulse width: 35 V max.
ExternalVideo Input*1 -
DC coupled. 0-50 kHz, 0-1.4 V (175 mV/divtypical) signal input for vertical deflection of CRT beam.
Sweep Gate Out - TTL level, HI while CRT beam sweeps.
Sweep Output - +1.3 to -1.3 V, negative-going ramp, proportionalto the horizontal sweep. Source impedance ≤50 ohm.
VideoOutput - 0 to +1.6 V of video signal, proportional to verticaldisplay amplitude. 0 V is top of screen. 1 kilohm impedance.
Environmental Specifications
Temperature -
Operating:0 to 50 °C (MIL-T-28800D).
Nonoperating: -55 to +75 °C.
Humidity -
Nonoperating: Five cycles (120 hours)per MIL-T-28800D, Class 5.
Shock -
Operatingand nonoperating: Three guillotine-type shocks of 30 g, one-half sine,11 ms duration each direction along each major axis; total of 18 shocks.
Electromagnetic Compatibility -
EC92 EMC Directive89/336/EEC.
Emissions: EN50081-I.
Radiated Emissions,30 MHz to 1 GHz, EN55022 Class B (CISPR 22 B).
Conducted Emissions,150 kHz to 30 MHz, EN55022 Class B (CISPR 22 B).
ConductedEmissions, power line harmonics. 0 to 2 kHz, IEC 555-213.
Immunity:EN50082-1.
Electrostatic Discharge, 8 kV, IEC 801-2.
Radiated Immunity, 27 MHz to 500 MHz, IEC 801-3. No response above-90 dBm in a 3 V/meter field. Fast transients, capacitive clamp, 1kV power leads, 500 V control leads, IEC 801-4.
Power LineSurge, 1 kV differential mode, 2 kV Common mode, IEC 801-5.
Vibration - Meets MIL-T-28800E, Paragraph 4.5.5.3.1 (modified).
General Characteristics
Power Requirements - 105 W max. (1.4 A) at 115 V, 60 Hz. Operates 48 Hz to 440 Hz, 90to 132 V AC, or 48 Hz to 63 Hz to 250 V AC. Battery power (Opt. 07)available.
Physical Characteristics
Dimensions | mm | in. |
---|---|---|
Height | 137*3 | 5.4*3 |
Width | 361*3 | 14.2*3 |
Depth | 445*3 | 17.5*3 |
Weight | kg | lbs. |
Net | 9.5*4 | <21*4 |
*3 With feet, handle, and front-panelcover.
*4 Nominal for basic configuration.
Other Capabilities
Markers - Single marker/deltamarker; next right, next left peaks; next lower, next higher peaks;(highest) peak find; marker to center frequency and reference level.
Nonvolatile Memory -
Lithium battery backup.
2712: 124 KB available; up to 108 displays saved; 36 front-panelsetups, large user-definable key routines, and antenna tables (exactnumber and size depends on NV RAM utilization).
2711: 28 KBavailable; up to 18*2 displays saved and 9*2 front-panel setups, user-definable key routines, and antenna tables.
Digital Storage Display - Selectable acquisitionmodes of positive peak only, positive/negative peak. SAVE A, B, C,and active D trace; up to four traces on screen; MAX HOLD A, B; MINHOLD A, B, C; B, C MINUS A; WATERFALL display mode; digital storageoff provides analog sweep.
Ensemble Averaging - Providesweighted continuous or discrete averaging of display resulting inreduction of random noise.
Internal Preamp - Preampcan be switched in/out of circuit (flatness degrades above 600 MHz,provides approximately 12 dB sensitivity improvement).
Alternative Reference Level Units - dBm, dBmV, dBV, dBµV, dBµW,dBµV/m.
User-Definable Power-On Status - Instrumentpowers up to user-definable state or factory default condition.
Center Measure - Signal is centered with frequency andpeak amplitude automatically read out (not a marker mode). The signalis counted in the 2712 or 2711 with Option 02.
Signal Track- Drifting signal is kept at display center with correct frequencyand peak amplitude displayed.
Graticule Illumination -
For CRT photography in analog display mode.
Supports EpsonFX and LQ Series Printers through a built-in GPIB interface (Std.2712, 2711 Opt. 03), RS-232C interface (Opt. 08, 2712 and 2711).
*1 Typical but unwarranted performance parameters.
Tek 2712 Service Manual Download
*2 Up to 108 saved displays, 36 front-panel setupsavailable with Opt. 03 or 08.
Tek 2712 Service Manual Pdf
Product(s) are manufactured in ISO registered facilities. Product(s) complies with IEEE Standard 488.1-1987, RS-232-C,and with Tektronix Standard Codes and Formats. 37W-23209-0