The Tektronix 2712 Spectrum Analyzer delivers frequency domain measurements from 9 kHz to 1.8 GHz, serving engineers and technicians in broadcast, communications, and EMC testing environments. This instrument combines high sensitivity down to -139 dBm with flexible resolution bandwidth options and straightforward front-panel operation to enable rapid signal characterization and component validation.
Technical Specifications
Frequency Performance
• Frequency range: 9 kHz to 1.8 GHz
• Center frequency accuracy: 5 × 10⁻⁷ of CF ±700 Hz
• Frequency counter accuracy: 5 × 10⁻⁷ of CF ±10 Hz, ±1 LSB
• Dot marker frequency accuracy: ±3% of span
• Long-term frequency drift: 2 ppm/yr; short-term: ≤400 Hz maximum between correction cycles
Resolution & Sensitivity
• Standard resolution bandwidths (-6 dB): 5 MHz, 300 kHz, 30 kHz, 3 kHz, 300 Hz
• Optional narrower RBW: 1 MHz, 100 kHz, 10 kHz, 1 kHz (Option 14) or 1 MHz, 120 kHz, 9 kHz, 1 kHz, 200 Hz (Option 12)
• Sensitivity: -127 dBm at 300 Hz RBW; -139 dBm with preamplifier enabled (up to 600 MHz)
• Display dynamic range: 80 dB maximum (40 dB in Quasi-peak Detector mode)
• RF attenuation: 0 to 50 dB in 2 dB steps
Amplitude Measurements
• Flatness: ±1.5 dB (10 dB RF attenuation, preamp off)
• Vertical modes: 10 dB/div, 5 dB/div, 1 dB/div, Linear
• Amplitude accuracy (10 dB/div): ±1.0 dB/10 dB, max ±2 dB over 70 dB range
• Amplitude accuracy (5 dB/div): ±1.0 dB/10 dB, max ±2 dB over 40 dB range
• Amplitude accuracy (1 dB/div): 1 dB maximum over 8 dB range
• Amplitude accuracy (Linear): ±5% of full scale
Spurious & Distortion Performance
• Residual spurious response: <-100 dBm (referenced to 1st mixer input)
• 3rd order IM distortion: <-70 dBc (1st mixer input -5 to -30 dBm)
• 2nd harmonic distortion: <-66 dBc (1st mixer input <-40 dBm)
• LO emission: <-70 dBm (0 dB RF attenuation)
• Spur source output: -20 dBm to -50 dBm, selectable
Sweep & Triggering
• Sweep times: 1 µsec to 2 sec/div in 1-2-5 sequence
• Sweep time accuracy: ±10% over center eight divisions
• Trigger modes: Free run, internal, external, line, TV field, TV line, single sweep, manual scan
• Internal trigger: One division or more of signal; external trigger: 1.0 V peak minimum
– Key Features
• Dedicated front-panel keys and menu-driven operation
• Mixer input level automatically controlled or manually selectable (-20 dBm to -50 dBm)
• Seven trigger modes support diverse measurement scenarios
– Typical Applications
• Broadcast transmitter performance characterization
• Communications system signal analysis
• EMC prequalification testing
• Component frequency response validation
