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{{ | {{Instrument Sidebar | ||
|class=Spectrum Analyzer | |||
summary=Spectrum Analyzer | |manufacturer=Tektronix | ||
image= Tek 2794 1.jpg | | |model=2794 | ||
caption=Tektronix 2794 | | |summary=21 GHz Spectrum Analyzer | ||
introduced=1993 | | |image=Tek 2794 1.jpg | ||
discontinued=1996 | | |caption=Tektronix 2794 | ||
manuals= | |introduced=1993 | ||
|discontinued=1996 | |||
|designers= | |||
|manuals= | |||
* Operator’s and Service Manuals needed | |||
* [[Media:tek_2790_series_programming_manual.pdf| Tektronix 2790 Series Programming Manual (PDF)]] | * [[Media:tek_2790_series_programming_manual.pdf| Tektronix 2790 Series Programming Manual (PDF)]] | ||
* [[Media:Tektronix_279X_Catalog_Datasheet.pdf| Tektronix 279X Datasheet (PDF)]] | * [[Media:Tektronix_279X_Catalog_Datasheet.pdf| Tektronix 279X Datasheet (PDF)]] | ||
For Firmware 1.2 or 1.3 see [[ROM_images|ROM images]] for each EPROM that may need updating or refreshing. | For Firmware 1.2 or 1.3 see [[ROM_images|ROM images]] for each EPROM that may need updating or refreshing. | ||
}} | }} | ||
The '''Tektronix 2794''' is a spectrum analyzer with a frequency range of 10 kHz to 21 GHz in coax, to 325 GHz with external waveguide mixers. The minimum resolution bandwidth is 10 Hz, and provides measurement resolution proportional to the frequency accuracy or span. In addition to conventional digital storage features, non-volatile memory (NVRAM) stores up to 9 separate waveforms with their readouts and markers, for later recall for additional analysis and comparison. Also, store up to 10 different front-panel control setups for future recall. The instrument can selectively count one particular signal out of several that may be present at its input. | The '''Tektronix 2794''' is a spectrum analyzer with a frequency range of 10 kHz to 21 GHz in coax, to 325 GHz with external waveguide mixers. The minimum resolution bandwidth is 10 Hz, and provides measurement resolution proportional to the frequency accuracy or span. In addition to conventional digital storage features, non-volatile memory (NVRAM) stores up to 9 separate waveforms with their readouts and markers, for later recall for additional analysis and comparison. Also, store up to 10 different front-panel control setups for future recall. The instrument can selectively count one particular signal out of several that may be present at its input. | ||
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{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Frequency | {{Spec | Frequency | | ||
* Coaxial Input Bands: 10 kHz to 21 GHz; | * Coaxial Input Bands: 10 kHz to 21 GHz; | ||
* External Waveguide mixer: 10 kHz to 325 GHz }} | * External Waveguide mixer: 10 kHz to 325 GHz }} | ||
{{Spec | Frequency Span | {{Spec | Frequency Span | 100 Hz to 150 GHz (plus 0 Hz and MAX)}} | ||
{{Spec | Resolution Bandwidth | {{Spec | Resolution Bandwidth | 6 dB bandwidths from 3 Hz to 10 MHz }} | ||
{{Spec | RF Input impedance | 50 Ω }} | {{Spec | RF Input impedance | 50 Ω }} | ||
{{Spec | Maximum Safe Input Power | | {{Spec | Maximum Safe Input Power | | ||
* CW Power: 1 Watt (+30 dBm); | * CW Power: 1 Watt (+30 dBm); | ||
* Pulse Power: 75 W peak, 1 | * Pulse Power: 75 W peak, 1 µs, 0.1% duty factor }} | ||
{{Spec | External Mixer Input | | {{Spec | External Mixer Input | 50 Ω with VSWR ≤1.3:1 at <2.5 GHz, and ≤3.5:1 at 21 GHz }} | ||
{{Spec | RF Attenuator | {{Spec | RF Attenuator | 0 dB to 60 dB, 10 dB steps }} | ||
{{Spec | Reference Level | {{Spec | Reference Level | -117 dBm to +30 dBm }} | ||
{{Spec | LO Output Power (2 to 6 GHz) | 1st LO: +7.5 dBm to +20 dBm; 2nd LO: -12 dBm to +5 dBm }} | {{Spec | LO Output Power (2 to 6 GHz) | 1st LO: +7.5 dBm to +20 dBm; 2nd LO: -12 dBm to +5 dBm }} | ||
{{Spec | Sweep Speed | {{Spec | Sweep Speed | 100 s to 200 µs in 1, 2, 5 sequence }} | ||
{{Spec | Video Bandwidth | {{Spec | Video Bandwidth | 0.3 Hz to 30 kHz }} | ||
{{Spec | Triggering Modes | Free Run, Line, Video, Single, Ext }} | {{Spec | Triggering Modes | Free Run, Line, Video, Single, Ext }} | ||
{{Spec | Displayed Average Noise | −80 dBm to −134 dBm }} | {{Spec | Displayed Average Noise | −80 dBm to −134 dBm }} |