496

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Tektronix 496
1.8 GHz Spectrum Analyzer
Tektronix 496

Produced from 1982 to 1989

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix 496 is a spectrum analyzer with a frequency range of 1 kHz to 1.8 GHz, introduced in 1982. The 496P model is GPIB programmable.

Non-volatile memory (NVRAM) can store up to 9 waveform displays, 10 complete front panel measurement parameter setups, and 8 K for programming macros of commonly used routines.

Key Specifications

Frequency 1 kHz to 1.8 GHz
Frequency Span 50 Hz to 100 MHz in 1, 2, 5 sequence (plus 0 Hz and MAX)
Resolution Bandwidth 30 Hz; 100 Hz to 1 MHz in decade steps (-6 dB bandwidth)
RF Input 50 Ω; max. +30 dBm (1 W) CW; max. 75 W peak @ 1 µs pulse, 0.1% duty factor
RF Attenuator 0 to 60 dB, 10 dB steps
Reference Level −123 dBm to +40 dBm
Sweep Speed 10 sec/div to 20 µs/div in 1, 2, 5 sequence
Video Bandwidth 0.3 Hz to 30 kHz
Triggering Modes Free Run, Line, Video, Single, External
Displayed Average Noise −30 dBm to −131 dBm
Display Dynamic Range 80 dB
Calibrator 50 Ω, -20 dBm ±0.3 dB at 100 MHz (Opt. 07: 75 Ω, +20 dBmV ±0.3 dB at 100 MHz)
Weight 20 kg (44 lbs)
Power 90 − 132 VAC, 48 to 440 Hz; 180 – 250 VAC, 48 to 440 Hz, 210 W max
Features
  • Continuous resolution frequency tuning
  • Markers provide direct readout of frequency and amplitude (single and delta)
  • Built-in intelligence for signal processing/marker functions
  • Pushbutton Occupied Bandwidth / Noise Normalization functions
  • Macro Capability
  • Optional switch-selectable  50 Ω/75 Ω Impedance
  • GPIB Programming

Options

  • Opt. 07: 75 Ω dBmV input and calibration in addition to the normal 50 Ω dBm input and calibration. (Not combinable with Opt. 21 and 22; no external mixer capability). Include 42-inch 75 Ω BNC-BNC coax cable and BNC male to “F” female adapter.
  • Opt. 30: Rackmount with front panel input/outputs
  • Opt. 31: Rackmount with rear panel input/output capability
  • Opt. 32: Benchmount. Adds side and top panels, carrying handles and feet for a stackable benchtop configuration
  • 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

Front panel inputs/outputs

Rear panel inputs/outputs:

  • PROBE POWER, LEMO S-series connector – ±15 V, +5 V; 100 mA max each
  • HORIZ/TRIG (EXT IN), BNC connector – In External Triggering mode, AC coupled input for trigger signals; When TIME/DIV selection is EXT, DC coupled input for horizontal sweep voltages.
  • MARKER/VIDEO (EXT IN), BNC connector – Interfaces with a Tektronix 1405 TV Adapter to display an externally-generated marker
  • 110 MHz IF (OUTPUT), BNC connector – Available on Opt. 42 utilizing the HORIZ (OUTPUT) connector; 110 MHz IF output with a bandwidth greater than 5 MHz
  • HORIZ (OUTPUT), BNC connector – 0.5 V/div horizontal signal
  • VERT (OUTPUT), BNC connector – Video signal, 0.5 V/Div
  • PEN LIFT (OUTPUT), BNC connector – TTL compatible (In Opt. 42 instruments, external video input if pin 1 of the ACCESSORIES connector is grounded)
  • 10 MHz IF (OUTPUT), BNC connector
  • EXT REF IN, BNC connector – 50 Ω input for 1, 2, 5, or 10 MHz external sinewave reference signal, –15 dBm to +15 dBm
  • J104 ACCESSORY (B053575 AND UP) female, DB25 connector – Bidirectional access to the instrument bus
  • IEEE STD 488 PORT

Original included Accessories: Operator’s Manual; Operator’s Handbook; 6-ft 50Ω coaxial cable N-N; 18-inch 50Ω coaxial cable BNC-BNC; N male to BNC female adapter; rear connector shield; Power Cord; spare fuses; CRT filter set consisting of visor, blue, amber and gray light filters plus mesh filter; 496P only: Programmer Manual and GPIB cable

Links

Pictures

496P

496P

Components

Some Parts Used in the 496

Part Part Number(s) Class Description Used in
151-0261-00 151-0261-00 Discrete component dual PNP transistor AM501 AM502 CG5001 CG551AP FG501 FG502 FG503 OF150 OF151 OF152 OF235 OS261 RM502A R1140 R5030 R5031 R7912 067-0679-00 067-0807-00 1101 1140A 1141 1142 1350 145 1450 1480 1481 1482 1485 1501 1801 1900 1910 1980 213 26A1 26A2 2620 285 3A9 3A10 3S1 3S2 3S5 3S6 432 434 4501 454 4601 4602 4610 4612 4620 4632 4634 4701 475 492 492A 492AP 494 494P 496 496P 5A13N 5A20N 5A21N 5A22N 5A26 5L4N 502A 5030 5031 576 690SR 7A22 7A29 7B51 7B71 7J20 7L5 7S11 7S12 7912AD
155-0035-00 155-0035-00 155-0116-00 Monolithic integrated circuit quad op-amp 3110 3S7 3T7 492 492A 492AP 492P 494 494P 496 496P 4010 4011 4012 4013 7L5 7L12 7L13 7L14 7L18 7S11 7T11 7S12 S-6 1461 4602 P7001 613 653
155-0157-00 155-0157-00 Monolithic integrated circuit digital storage vertical control 7L5 7L14 7L18 491 492 492A 492BP 492PGM 494 494A 495 496 497P
155-0158-00 155-0158-00 Monolithic integrated circuit digital storage horizontal control 7L5 7L14 7L18 491 492 492A 492BP 492PGM 494 494A 495 496 497P