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492: Difference between revisions
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image= Tek 492 3.jpg | | image= Tek 492 3.jpg | | ||
caption=Tektronix 492 | | caption=Tektronix 492 | | ||
introduced=1980 | | introduced=1980 | | ||
discontinued=1993 | | discontinued=1993 | | ||
manuals= | manuals= | ||
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}} | }} | ||
The '''Tektronix 492''' is a spectrum analyzer with a frequency range of 10 kHz to 21 GHz in coax, and up to 325 GHz with external waveguide mixers 492PGM | The '''Tektronix 492''' is a spectrum analyzer with a frequency range of 10 kHz to 21 GHz in coax, and up to 325 GHz with external waveguide mixers (492PGM N/A). The '''P''' suffix designation indicates GPIB '''P'''rogrammability. The minimum resolution bandwidth is 100 Hz, and provides measurement resolution proportional to the frequency accuracy or span. With non-volatile memory (NVRAM) you can save up to 9 waveform displays, up to 10 complete front panel measurement parameter setups, and 8 K for programming macros of commonly used routines. | ||
The single and delta markers provide direct readout of frequency and amplitude information of any point along any displayed trace. Or, get the relative (delta) frequency and amplitude information between any two points along any displayed trace or between traces. | The single and delta markers provide direct readout of frequency and amplitude information of any point along any displayed trace. Or, get the relative (delta) frequency and amplitude information between any two points along any displayed trace or between traces. | ||
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{{Spec | Frequency Range | | {{Spec | Frequency Range | | ||
* Coaxial Input Bands: 10 kHz to 21 GHz | * Coaxial Input Bands: 10 kHz to 21 GHz | ||
* External Waveguide mixers: 10 kHz to 325 GHz }} | * External Waveguide mixers: 10 kHz to 325 GHz (applies to 492BP not 492PGM) }} | ||
{{Spec | Frequency Span Range (plus 0 Hz and MAX) | 492BP: 100 Hz/div to 10 GHz/div; 492PGM: 200 MHz to 1 GHz; both in 1, 2, 5 sequence }} | {{Spec | Frequency Span Range (plus 0 Hz and MAX) | 492BP: 100 Hz/div to 10 GHz/div; 492PGM: 200 MHz to 1 GHz; both in 1, 2, 5 sequence }} | ||
{{Spec | Resolution Bandwidth Range (-6 dB bandwidth) | 492BP: 100 Hz to 3 MHz; 492PGM: 1 kHz to 3 MHz; both in decade steps }} | {{Spec | Resolution Bandwidth Range (-6 dB bandwidth) | 492BP: 100 Hz to 3 MHz; 492PGM: 1 kHz to 3 MHz; both in decade steps }} | ||
{{Spec | RF Input impedance | 50Ω }} | {{Spec | RF Input impedance | 50Ω }} | ||
{{Spec | Maximum Safe Input Power | CW: +30 dBm (1 W); Pulse: 75 W Pk (1 µS pulse, 0.1% duty factor) }} | {{Spec | Maximum Safe Input Power | CW: +30 dBm (1 W); Pulse: 75 W Pk (1 µS pulse, 0.1% duty factor) }} | ||
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{{Spec | Reference Level Range | -117 dBm to +30 dBm }} | {{Spec | Reference Level Range | -117 dBm to +30 dBm }} | ||
{{Spec | Sweep Speed Range | 10 sec/div to 20 µs/div in 1, 2, 5 sequence }} | {{Spec | Sweep Speed Range | 10 sec/div to 20 µs/div in 1, 2, 5 sequence }} | ||
{{Spec | Video Bandwidth Range | 492BP: 0.3 Hz to 30 kHz; 492PGM: 3 Hz to 30 kHz }} | {{Spec | Video Bandwidth Range | 492BP: 0.3 Hz to 30 kHz; 492PGM: 3 Hz to 30 kHz }} | ||
{{Spec | Triggering Modes | Free Run, Line, Video, Single, External }} | {{Spec | Triggering Modes | Free Run, Line, Video, Single, External }} | ||
{{Spec | Displayed Average Noise | −30 dBm to −131 dBm }} | {{Spec | Displayed Average Noise | −30 dBm to −131 dBm }} | ||
{{Spec | Display Dynamic Range | 90 dB; 492PGM is only 80 dB }} | {{Spec | Display Dynamic Range | 90 dB; 492PGM is only 80 dB }} | ||
{{Spec | Calibrator (Cal out) | 50Ω, -20 dBm ±0.3 dB at 100 MHz }} | {{Spec | Calibrator (Cal out) | 50Ω, -20 dBm ±0.3 dB at 100 MHz }} | ||
{{Spec | Included Accessories | Operator’s Manual; Programmer Manual; 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 amber and gray light filters plus mesh filter, 492PGM includes gray CRT filter (no filter set) }} | {{Spec | Included Accessories | Operator’s Manual; Programmer Manual; 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 amber and gray light filters plus mesh filter, 492PGM includes gray CRT filter (no filter set) }} | ||
{{Spec | Weight | 492BP: 21.76 kg (47 lbs) 492PGM: 21.3 kg (46 lbs) }} | {{Spec | Weight | 492BP: 21.76 kg (47 lbs) 492PGM: 21.3 kg (46 lbs) }} | ||
{{Spec | Power | 90 − 132 V<sub>AC</sub>, 48 to 440 Hz; 180 – 250 V<sub>AC</sub>, 48 to 440 Hz. At 115 V<sub>AC</sub>, 60 Hz, 210 W max }} | {{Spec | Power | 90 − 132 V<sub>AC</sub>, 48 to 440 Hz; 180 – 250 V<sub>AC</sub>, 48 to 440 Hz. At 115 V<sub>AC</sub>, 60 Hz, 210 W max }} | ||
{{Spec | Operating Atmospherics | Temperatures: -15 °C to +55 °C; Humidity: Five cycles (120 hours) MIL-STD-810; Altitude: Up to 4.6 km (15,000 ft) }} | {{Spec | Operating Atmospherics | Temperatures: -15 °C to +55 °C; Humidity: Five cycles (120 hours) MIL-STD-810; Altitude: Up to 4.6 km (15,000 ft) }} | ||