49X Series Comparison: Difference between revisions

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| Yes || Yes || Yes || No || Yes || Yes || No || No || No || Yes || Yes || No || No ||
| Yes || Yes || Yes || No || Yes || Yes || No || No || No || Yes || Yes || No || No ||
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!Cent. Freq. Acc.
!Center Frequency Accuracy
| ±5 MHz  ||±30 kHz|| ±21 kHz || ±30 kHz || Freq.Ref. || ±20 kHz || ±20 kHz || ±5 MHz || ±21 kHz || ±30kHz || ±20 kHz || ±20 kHz || ±21 kHz || at 1 GHz, 100 kHz/div span
| ±5 MHz  ||±30 kHz|| ±21 kHz || ±30 kHz || Freq.Ref. || ±20 kHz || ±20 kHz || ±5 MHz || ±21 kHz || ±30kHz || ±20 kHz || ±20 kHz || ±21 kHz || at 1 GHz, 100 kHz/div span
|-
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!Freq. Ref. Acc.
!Frequency Reference Accuracy
|  || || 1×10<sup>-6</sup>/year || 1×10<sup>-5</sup>/year || 1×10<sup>-7</sup>/year || 1×10<sup>-7</sup>/year || 1×10<sup>-7</sup>/year || || 1×10<sup>-6</sup>/year || ? || 1×10<sup>-9</sup>/year || 1×10<sup>-9</sup>/year || ?||
|  || || 1×10<sup>-6</sup>/year || 1×10<sup>-5</sup>/year || 1×10<sup>-7</sup>/year || 1×10<sup>-7</sup>/year || 1×10<sup>-7</sup>/year || || 1×10<sup>-6</sup>/year || ? || 1×10<sup>-9</sup>/year || 1×10<sup>-9</sup>/year || ?||
|-
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|  || || −105 dBc/Hz || −103 dBc/Hz || −90 dBc/Hz || −105 dBc/Hz || −105 dBc/Hz || || −105 dBc/Hz || −103 dBc/Hz || −105 dBc/Hz || −105 dBc/Hz || −105 dBc/Hz||
|  || || −105 dBc/Hz || −103 dBc/Hz || −90 dBc/Hz || −105 dBc/Hz || −105 dBc/Hz || || −105 dBc/Hz || −103 dBc/Hz || −105 dBc/Hz || −105 dBc/Hz || −105 dBc/Hz||
|-
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!Min. Res. BW.
!Min. Resolution Bandwidth
| 1 kHz ||100 Hz  || 100 Hz || 1 kHz || 30 Hz || 10 Hz || 10 Hz || 30 Hz || 10 Hz || 1 kHz || 10 Hz || 10 Hz || 10 Hz||
| 1 kHz ||100 Hz  || 100 Hz || 1 kHz || 30 Hz || 10 Hz || 10 Hz || 30 Hz || 10 Hz || 1 kHz || 10 Hz || 10 Hz || 10 Hz||
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!Max. Res. BW.
!Max. Resolution Bandwidth
| 1 MHz || 1 MHz|| 3 MHz || 3 MHz || 1 MHz || 3 MHz || 3 MHz || 1 MHz || 3 MHz || 3 MHz || 3 MHz || 3 MHz || 3 MHz||
| 1 MHz || 1 MHz|| 3 MHz || 3 MHz || 1 MHz || 3 MHz || 3 MHz || 1 MHz || 3 MHz || 3 MHz || 3 MHz || 3 MHz || 3 MHz||
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Revision as of 23:26, 25 May 2021

This page is an attempt to compare the 49X and 279X series spectrum analyzers that share many common hardware features. All data is for the base model without options.

Model 492 492A 492BP 492PGM 494 494A 495P 496 497P 2792 2794 2795 2797 Notes
Frequency Range 50 kHz – 21 GHz 50 kHz – 21 GHz 10 kHz – 21 GHz 10 kHz – 21 GHz 10 kHz – 21 GHz 10 kHz – 21 GHz 100 Hz – 1.8 GHz 1 kHz – 1.8 GHz 100 Hz – 7.1 GHz 10 kHz – 21 GHz 10 kHz – 21 GHz 100 Hz – 1.8 GHz 100 Hz – 7.1 GHz
Min. Span 100 kHz 1 kHz 2 kHz 500 Hz 100 Hz 100 Hz 500 Hz 1 kHz 2 kHz 100 Hz 100 Hz 100 Hz
Max. Span 5 GHz 100 GHz 10 GHz 5 GHz 100 GHz 1 GHz 1 GHz 5 GHz 12 GHz 150 GHz 1.7 GHz 4 GHz
Ext. Mix Yes Yes Yes No Yes Yes No No No Yes Yes No No
Center Frequency Accuracy ±5 MHz ±30 kHz ±21 kHz ±30 kHz Freq.Ref. ±20 kHz ±20 kHz ±5 MHz ±21 kHz ±30kHz ±20 kHz ±20 kHz ±21 kHz at 1 GHz, 100 kHz/div span
Frequency Reference Accuracy 1×10-6/year 1×10-5/year 1×10-7/year 1×10-7/year 1×10-7/year 1×10-6/year ? 1×10-9/year 1×10-9/year ?
SSB Phase Noise −105 dBc/Hz −103 dBc/Hz −90 dBc/Hz −105 dBc/Hz −105 dBc/Hz −105 dBc/Hz −103 dBc/Hz −105 dBc/Hz −105 dBc/Hz −105 dBc/Hz
Min. Resolution Bandwidth 1 kHz 100 Hz 100 Hz 1 kHz 30 Hz 10 Hz 10 Hz 30 Hz 10 Hz 1 kHz 10 Hz 10 Hz 10 Hz
Max. Resolution Bandwidth 1 MHz 1 MHz 3 MHz 3 MHz 1 MHz 3 MHz 3 MHz 1 MHz 3 MHz 3 MHz 3 MHz 3 MHz 3 MHz
GPIB P model P model yes yes P model P model Yes P model Yes Yes Yes Yes Yes
Marker No Yes Yes Yes No Yes Yes No Yes Yes Yes Yes Yes
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