2797

Manuals – Specifications – Links – Pictures

The Tektronix 2797 is a spectrum analyzer with a frequency range of 100 Hz to 7.1 GHz and 10 Hz minimum resolution bandwidth, with digital storage.

Non-volatile memory (NVRAM) stores up to 9 separate waveforms with their readouts and markers, and up to 10 different front-panel control setups.

The single and delta markers provide direct readout of frequency and amplitude information of any point along any displayed trace, or indicate the relative (delta) frequency and amplitude information between any two points along any displayed trace, or between traces.

The instrument can selectively count one particular signal out of several that may be present at its input.

Key Specifications

Frequency	100 Hz to 7.1 GHz
Frequency Span	100 Hz to 4 GHz (plus 0 Hz and MAX)
Resolution Bandwidth	6 dB bandwidths from 10 Hz to 3 MHz
RF Input impedance	50 Ω
Maximum Safe Input Power	1 Watt (+30 dBm) CW, or 75 W peak, 1 µs, 0.1% duty factor
RF Attenuator	0 dB to 60 dB, 10 dB steps
Reference Level	−117 dBm to +30 dBm
LO Output	(2 to 6 GHz) 1st LO: +6 dBm to +20 dBm; 2nd LO: −12 dBm to +5 dBm
Sweep Speed	100 s to 200 µs in 1, 2, 5 sequence
Video Bandwidth	0.3 Hz to 30 kHz
Triggering Modes	Free Run, Line, Video, Single, Ext
Displayed Average Noise	−75 dBm to −130 dBm
Display Dynamic Range	90 dB
Dynamic Range	130 dBm (Compression to noise)
Included Accessories	Operator’s Manual; Programmer’s Manual; 6-ft, 50 Ω coaxial cable, N-N; 18-inch, 50 Ω coaxial cable, BNC-BNC; N male to BNC female adapter; rear connector shield; power cord and spare fuses; CRT filter set consisting of amber and gray light filters plus mesh filter
Weight	20.8 kg (45 lbs)
Power	90 − 132 VAC, 47 – 63 Hz, 210 W max; 180 – 250 VAC, 47 – 63 Hz
Additional Features	Continuous resolution frequency tuning built-in frequency counters sensitivity to -134 dBm built-in signal processing/marker functions push-button Occupied Bandwidth/Noise Normalization functions macro capability with nonvolatile memory optional switch-selectable 50/75Ω impedance
Front Panel Inputs/Outputs	RF INPUT 50 Ω (N connector); 1ST LO OUTPUT (SMA connector); 2ND LO OUTPUT (SMA connector); CAL OUT (BNC connector, 100 MHz ±10 Hz, −20 dBm ±0.3 dB)
Rear Panel Inputs/Outputs	GPIB interface PROBE POWER HORIZ/TRIG (EXT IN, BNC connector − AC coupled trigger input in External Triggering mode; DC coupled input for horizontal sweep voltage when TIME/DIV in EXT) MARKER/VIDEO (EXT IN, BNC connector − Interfaces to a 1405 TV Adapter to display an externally-generated marker) HORIZ (OUTPUT, BNC connector − 110 MHz IF output as an input into the PEN LIFT connector / alternately supplies a 0.5 V/div horizontal signal) VERT (OUTPUT, BNC connector − video signal, 0.5 V/div); PEN LIFT (OUTPUT, BNC connector − TTL compatible signal to lift the pen of a chart recorder during sweep retrace) 10 MHz IF (OUTPUT, BNC connector) EXT REF IN (BNC connector, 50 Ω input for a 1, 2, 5, or 10 MHz ext ref signal) J104 ACCESSORY (female DB25 connector, external inputs and outputs to instrument bus))

Options

• Opt. 2: Precision Frequency Reference
• Opt. 23: GRASP software, PC2A interface, GPIB cable
• Opt. 30: Rackmount with handles for 19 in. rack
• Opt. 39: Non-lithium batteries for battery-backed memory
• Opt. 42: Replaces MARKER/VIDEO input port on the rear panel with a 110 MHz IF output port that provides a 3 dB signal bandwidth ≥4.5 MHz

Pictures

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  Provided with permission from RadioMuseum.org

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