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Characteristics

The following characteristics apply to 2711 after a 15-minute warm-up period, unless otherwise noted.

FREQUENCY RELATED
 

Frequency Range - 9 kHz to 1800 MHz
 

Center Frequency Accuracy - 2711: 1×10^-5 of CF ±5 kHz
 

Frequency Counter Accuracy (Opt. 02 2711) - 2711: 1×10^-5 of CF ±10 Hz, ±1 LSB
 

Dot Marker Frequency Accuracy*¹ - CF Accuracy ±3% of span
 

Long-term Drift*¹ - 2711: 10 ppm/yr
 

Short-term Drift - 2711: ≤20 kHz maximum drift between correction cycles
 

Residual FM - 2711: ≤2 kHz pk-pk/20 msec
 

Resolution Bandwidth (-6 dB) - 2711: 5 MHz, 300 kHz, 30 kHz, 3 kHz
 

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 - 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 RELATED
 

Flatness - ±1.5 dB measured with 10 dB internal RF attenuation (preamp off).
 

Vertical Display Modes - 10, 5, 1 dB/div, Linear.
 

Measurement Range - 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 - 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 Related
 

LO 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 RELATED
 

Sweep 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 Characteristics
 

External 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 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 - 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 Characteristics
 

Power 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	<21*4

*³ With feet, handle, and front-panel cover.

*⁴ Nominal for basic configuration.

Other Capabilities:
 

Markers - 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. 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.