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Characteristics
The following characteristics apply to both the 2712 and 2711 after a 15-minute warm-up period, unless otherwise noted. Frequency RelatedFrequency Range - 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 - CF Accuracy ±3% of span Long-term Drift*1 - 2712: 2 ppm/yr 2711: 10 ppm/yr Short-term Drift - 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 kHz span/div; ≤2 kHz pk-pk/20 msec at >20 kHz span/div 2711: ≤2 kHz pk-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 Bandwidth Shape Factor (60 dB/6 dB) - ≤7:1 for RBW ≤1 MHz Noise Sidebands - ≤70 dBc at 30 × RBW Video Filter - Approx. 1/100 (Auto) of RBW Manual Selection: 3 Hz to 300 kHz in 1-3 sequence Freq. Span/Div. Range - 2712: 180 MHz to 1 kHz 2711: 180 MHz to 10 kHz selected in 1-2-5 sequence or within two significant digits through a menu Span Accuracy - ±3% over the center eight divisions Amplitude RelatedFlatness - ±1.5 dB measured with 10 dB internal RF attenuation (preamp off). Vertical Display Modes - 10, 5, 1 dB/div, Linear. Measurement Range - 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 in optional 2712 Quasi-Peak Detector mode). Reference Level Range - 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 to max. cum. error of ±2 dB over 70 dB range; ±2.0 dB/10 dB over 70-80 dB range. 5 dB/div: ±1.0 dB/10 dB to max. cum. error of ±2 dB over 40 dB range. 1 dB/div: 1 dB max. error over 8 dB range. Linear Mode: ±5% of full scale. RF Attenuation Range - 0 to 50 dB, 2 dB steps. Sensitivity - 2712: -127 dBm (-80 dBmV) at 300 Hz RBW, -139 dBm (-92 dBmV) at 300 Hz RBW 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 (to 600 MHz). Spurious Response (Preamp Off)Residual Spurious Response - ≤-100 dBm referenced to input of 1st mixer 3rd Order IM Distortion - ≤-70 dBc, from any two on-screen signals within any frequency span measured with 1st mixer input level of ≤-30 dBm (+17 dBmV) 2nd Harmonic Distortion - ≤-66 dBc measured with 1st mixer input level of ≤-40 dBm (+7 dBmV) Input RelatedLO Emission - ≤-70 dBm with 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) continuous peak with 0 dB RF attenuation; 100 V DC (initially applied with full attenuation) 1 dB Compression Point - ≥-15 dBm (+32 dBmV) with 0 dB RF attenuation Sweep RelatedSweep Times - 1 µsec to 2 sec/div in 1-2-5 seq. (7-decade range); AUTO SWEEP mode; MANUAL SWEEP select Sweep Time Accuracy - ±10% over the center eight divisions Trigger - Free run, internal, external, line, TV field, TV line, single sweep, manual scan Trigger Amplitude - Internal: One division or more of signal External: Min. 1.0 V peak, (15 Hz to 1 MHz) Input/Output CharacteristicsExternal Trigger*1 - BNC connector, 10 kilohm impedance, DC coupled 0.1 µs min. Pulse width: 35 V max. External Video Input*1 - DC coupled. 0-50 kHz, 0-1.4 V (175 mV/div typical) 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, proportional to the horizontal sweep. Source impedance ≤50 ohm. Video Output - 0 to +1.6 V of video signal, proportional to vertical display amplitude. 0 V is top of screen. 1 kilohm impedance. Environmental SpecificationsTemperature - 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 - Operating and 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 Directive 89/336/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). Conducted Emissions, 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, 1 kV power leads, 500 V control leads, IEC 801-4. Power Line Surge, 1 kV differential mode, 2 kV Common mode, IEC 801-5. Vibration - Meets MIL-T-28800E, Paragraph 4.5.5.3.1 (modified). General CharacteristicsPower Requirements - 105 W max. (1.4 A) at 115 V, 60 Hz. Operates 48 Hz to 440 Hz, 90 to 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 4 *3 With feet, handle, and front-panel cover. *4 Nominal for basic configuration. Other CapabilitiesMarkers - Single marker/delta marker; 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-panel setups, large user-definable key routines, and antenna tables (exact number and size depends on NV RAM utilization). 2711: 28 KB available; up to 18*2 displays saved and 9*2 front-panel setups, user-definable key routines, and antenna tables. Digital Storage Display - Selectable acquisition modes 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; MIN HOLD A, B, C; B, C MINUS A; WATERFALL display mode; digital storage off provides analog sweep. Ensemble Averaging - Provides weighted continuous or discrete averaging of display resulting in reduction of random noise. Internal Preamp - Preamp can 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 - Instrument powers up to user-definable state or factory default condition. Center Measure - Signal is centered with frequency and peak amplitude automatically read out (not a marker mode). The signal is counted in the 2712 or 2711 with Option 02. Signal Track - Drifting signal is kept at display center with correct frequency and peak amplitude displayed. Graticule Illumination - For CRT photography in analog display mode. Supports Epson FX 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. *2 Up to 108 saved displays, 36 front-panel setups available with Opt. 03 or 08. |
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