GPS-SA3000X series
GPS-SA3000X Series Spectrum Analyser
9 kHz to 3.2 GHz. All-digital IF.
A 9 kHz to 3.2 GHz analyser on an all-digital IF, with resolution bandwidth down to 1 Hz, a preamplifier fitted as standard and a 10.1″ WVGA display. A 3.2 GHz tracking generator is available factory-fitted or as a retrofit kit.
1 Hz RBW
Resolve signals a 10 Hz filter would merge into one.
−161 dBm/Hz DANL
Normalised to 1 Hz with the standard preamplifier on.
−98 dBc/Hz phase noise
At 10 kHz offset from a 1 GHz carrier, typical.
Tracking generator
100 kHz to 3.2 GHz, factory-fitted or retrofit.
Where the GPS-SA3000X series fits
General-purpose RF measurement from the bench to the field, across the full 3.2 GHz range.
Communications & broadcast
Characterise transmitters, microwave links, cable TV and mobile systems across the full 3.2 GHz range.
EMI & EMC pre-compliance
Find emissions problems on the bench before a test house visit, with a CISPR 16 quasi-peak detector as an option.
Component & filter test
Sweep filters, amplifiers and antennas with the tracking generator, and measure VSWR and return loss with the reflection kit.
R&D, education & production
Site surveying, signal surveillance and teaching laboratories, with four independent traces and markers.
What the instrument gives you
An all-digital IF, a standard preamplifier and a 10.1″ display, with tracking generator and measurement kits to extend it.
1 Hz resolution bandwidth
Resolution bandwidth runs from 1 Hz to 1 MHz in a 1-3-10 sequence with a shape factor better than 4.8:1. Two carriers a few hertz apart resolve as two signals rather than one broad peak, which a 10 Hz floor cannot do.
−161 dBm/Hz noise floor
A displayed average noise level of −161 dBm/Hz normalised to 1 Hz with the standard 20 dB preamplifier on, so low-level signals sit clear of the floor rather than buried in it.
All-digital IF
The intermediate frequency stage is digital rather than analogue, which removes the drift and gain variation of analogue filters and holds total amplitude accuracy below 0.7 dB.
Tracking generator
An optional 100 kHz to 3.2 GHz tracking generator turns the analyser into a scalar network analyser for filter, amplifier and antenna response measurement. Output is −20 to 0 dBm with ±3 dB flatness.
Measurement kits
EMI pre-compliance adds a CISPR 16 quasi-peak detector and EasySpectrum software. Reflection adds VSWR, return loss and reflection coefficient. Advanced adds channel power, ACPR, occupied bandwidth and third-order intercept.
10.1″ WVGA display
A 1024 × 600 display with a 751 × 501 waveform area, four independent traces and markers, and 256 MB of internal storage with USB and LAN for transfer and remote control.
Two signals, or one?
Resolution bandwidth and noise floor decide what an analyser can actually show you.
The filter sets what you can separate
A spectrum analyser sweeps a bandpass filter across the span and plots what comes through. The width of that filter, the resolution bandwidth, sets how close two signals can be before they merge into a single peak. An analyser with a 10 Hz floor cannot separate carriers a few hertz apart, and there is no setting that will make it.
The GPS-SA3032X goes down to 1 Hz, with a shape factor better than 4.8:1 so the skirts of one response do not swamp a smaller neighbour. That matters for sideband and spurious work, where the signal you are looking for sits close to one far larger than it.
Buried in the floor
Displayed average noise sets the smallest signal you can see. With the preamplifier off the floor sits at around −141 dBm/Hz, and a weak carrier close to that level is indistinguishable from the noise around it.
Clear of it
The standard 20 dB preamplifier drops the floor to −161 dBm/Hz normalised to 1 Hz. The same carrier now stands well above the noise, with enough margin to measure its level rather than just detect it.
Models & part numbers
One instrument, ordered with or without the tracking generator fitted.
| Model | Frequency Range | Tracking Generator | RBW | DANL | Display | Part No. |
|---|---|---|---|---|---|---|
| GPS-SA3032X | 9 kHz – 3.2 GHz | Not fitted | 1 Hz – 1 MHz | −161 dBm/Hz | 10.1″ WVGA | 630320 |
| GPS-SA3032TG | 9 kHz – 3.2 GHz | Fitted, 100 kHz – 3.2 GHz | 1 Hz – 1 MHz | −161 dBm/Hz | 10.1″ WVGA | 650530 |
The tracking generator can also be retrofitted as kit TG-SA3000. EMI, reflection and advanced measurement kits are available separately. Contact us for pricing and current lead times.
Technical specifications
| Frequency range | 9 kHz to 3.2 GHz · span 0 Hz and 100 Hz to 3.2 GHz · resolution 1 Hz |
| Reference source | 10 MHz internal · initial calibration accuracy under 1 ppm · temperature stability under 1 ppm/year, 0 to 50°C |
| Resolution bandwidth | 1 Hz to 1 MHz in 1-3-10 · shape factor better than 4.8:1 (60 dB:3 dB) · uncertainty under 5% |
| Video bandwidth | 1 Hz to 3 MHz in 1-3-10 · uncertainty under 5% |
| Displayed average noise | −161 dBm/Hz normalised to 1 Hz with preamp on, 10 to 200 MHz typical · −141 dBm/Hz preamp off |
| Phase noise | Under −95 dBc/Hz at 10 kHz offset (−98 dBc/Hz typical) · under −115 dBc/Hz at 1 MHz offset, 1 GHz carrier |
| Amplitude accuracy | Total under 0.7 dB · absolute ±0.4 dB preamp off · frequency response ±0.8 dB |
| Measurement range | DANL to +10 dBm from 100 kHz to 1 MHz · DANL to +20 dBm from 1 MHz to 3.2 GHz |
| Reference level | −100 dBm to +30 dBm in 1 dB steps |
| Preamplifier | 20 dB nominal, 9 kHz to 3.2 GHz · fitted as standard |
| Input attenuation | 0 to 51 dB in 1 dB steps |
| Maximum input | +30 dBm average RF for 3 minutes at over 20 dB attenuation · damage level +33 dBm · ±50 Vdc |
| Distortion | Second harmonic −65 dBc · third-order intercept +10 dBm · residual response under −90 dBm · input related spurious under −65 dBc |
| Sweep | 1 ms to 3000 s · sweep mode at RBW 30 Hz to 1 MHz, FFT mode at RBW 1 Hz to 10 kHz · single or continuous |
| Trigger | Free run, video or external · 5 V TTL, rising or falling edge |
| Traces and detectors | 4 independent traces and markers · 751 display points · positive and negative peak, sample, normal, average · quasi-peak with the EMI kit |
| Trace functions | Clear write, max hold, min hold, view, blank, average · level units dBm, dBmV, dBµV, dBµA, V and W |
| Tracking generator | Optional · 100 kHz to 3.2 GHz · output −20 to 0 dBm in 1 dB steps · flatness ±3 dB · RBW 30 Hz to 1 MHz, sweep mode only |
| EMI kit (option) | Resolution bandwidth 200 Hz, 9 kHz and 120 kHz at 6 dB · quasi-peak detector to CISPR 16-1-1 · dwell 0 to 10 s · EasySpectrum software |
| Reflection kit (option) | VSWR, return loss and reflection coefficient |
| Advanced kit (option) | Channel power, adjacent channel power ratio, time domain power, occupied bandwidth, third-order intercept and spectrum monitor |
| RF input and TG output | 50 Ω, N-female · RF input VSWR under 1.5 nominal at 10 dB attenuation |
| Reference and trigger I/O | 10 MHz reference output, over 0 dBm · 10 MHz reference input, −5 to +10 dBm · external trigger 1 kΩ, 5 V TTL · all BNC-female |
| Interfaces | USB-A Host, USB-B Device · LAN (VXI-11), 10/100 Base, RJ-45 |
| Display and storage | 10.1″ TFT LCD, 1024 × 600 with a 751 × 501 waveform area · 256 MB internal, 32 GB via USB |
| Power | 100 to 240 Vac, 45 to 440 Hz · 30 W |
| Dimensions / mass | 393 × 207 × 116.5 mm (w × h × d) · 4.6 kg with tracking generator fitted |
| Operating conditions | 0°C to 50°C · storage −20°C to 70°C · ≤95% RH from 0 to 30°C, ≤75% RH from 30 to 50°C |
What’s in the box
- GPS-SA3032X or GPS-SA3032TG main unit10.1″ WVGA display
- Power cordMains lead
- USB cablePC connectivity
- Calibration certificateSupplied with the instrument
- Quick start guideWith product certificate
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