Bench Spectrum Analysers

A bench spectrum analyser is a crucial instrument used by technicians and engineers to examine the composition of electrical signals. Unlike an oscilloscope, which plots a signal’s change over time, the analyser displays the signal’s power or amplitude against its frequency across a selected range. These large, $\text{AC}$ -powered benchtop units are specifically designed for high-performance and high-accuracy measurements in fixed settings, such as a laboratory or production facility. They provide the detailed frequency domain analysis essential for developing and verifying modern electronic systems, particularly those involving radio frequency ( $\text{RF}$ communications.

Applications

Wireless Communication: Testing signal power, occupied bandwidth, and modulation quality for systems such as Wi-Fi, 5G, and satellite communications.
Interference Detection: Quickly identifying and locating unwanted signals, noise, or spurious emissions that degrade system performance.
$\text{EMC}$ Pre-Compliance: Debugging and testing a device’s electromagnetic emissions to ensure it meets strict regulatory standards before formal compliance testing.
$\text{RF}$ Component Testing: Characterising the performance, gain, and distortion of passive and active $\text{RF}$ components like filters, amplifiers, and mixers.
Manufacturing and Quality Control: Verifying the spectral integrity of products during production to maintain consistent quality and performance.

Series	Make	Test Frequency	Real-Time Bandwidth	Min. Resolution Bandwidth	Max CW RF Power	SSB Phase Noise	Display Average Noise Level (DANL)	Pre-Amp	Tracking Generator	Price From
DSA800 Series	Rigol	7.5GHz, 3.2GHz, 1.5GHz	N/A	10Hz	20dBm (100mW)	<-98dBc/Hz	<-161dBm/Hz	Standard	"-TG" Models Only	£161.00
RSA3000E Series	Rigol	1.5GHz. 3GHz	Up to 10MHz	1Hz	+30 dBm, attenuation ≥ 40dB preamp off	<-102 dBc/Hz	<-161dBm/Hz	Option	Standard	£184.00
RSA3000N Series	Rigol	1.5GHz, 3GHz, 4.5GHz	Up to 10MHz (Standard) Up to 40MHz (Option)	1Hz	+30 dBm, attenuation ≥ 40dB preamp off	<-102 dBc/Hz	<-161dBm/Hz	Option	Standard	£1,769.00
RSA5000 Series	Rigol	3.2GHz, 6.5GHz	Up to 25MHz (standard) Up to 40MHz (option)	1Hz	+30 dBm, attenuation ≥ 40 dB, preamp off	<-108dBc/Hz	<-165dBm/Hz	Option	"-TG" Models Only	£5,318.00
RSA5000N Series	Rigol	3.2GHz, 6.5GHz	Up to 25MHz (Standard) Up to 40MHz (Option)	1Hz	+30 dBm, attenuation ≥ 40 dB, preamp off	<-108dBc/Hz	<-165dBm/Hz	Option	Standard	£4,430.00
RSA6000 Series	Rigol	8.5GHz, 14GHz, 26.5GHz	Up to 80MHz (Standard) Up to 200MHz (Option)	1Hz	+25 dBm, attenuation > 35 dB, preamp off	<-108 dBc/Hz	<-163dBm/Hz	Standard	Standard	£8,337.00
SSA3000X PLUS Series	Siglent	1.5GHz, 2.1GHz, 3.2GHz, 7.5GHz	N/A	1Hz	30dBm, attenuation > 20dBm, preamp off	<-98 dBc/Hz	<-161 dBm/Hz	Standard	Standard	£1,002.00
SSA3000X Series	Siglent	2.1GHz, 3.2GHz	N/A	1Hz	30dBm, attenuation > 20dBm, preamp off	<-98 dBc/Hz	<-161 dBm/Hz	Standard	Standard	£1,122.00
SSA3000X-R	Siglent	3.2GHz, 5.0GHz, 7.5GHz	Up to 25MHz (Standard) Up to 40MHz (Option)	1Hz	30 dBm, attenuation >20 dBm, preamp off	<-98 dBc/Hz	<-165 dBm/Hz	Standard	Standard	£3,453.00
SVA1000X Series	Siglent	1.5GHz, 3.2GHz, 7.5GHz	N/A	1Hz	30 dBm, attenuation >20 dB, preamp off	<-99 dBc/Hz	<-156 dBm/Hz	Standard	Standard	£184.00
PSA Series	TTI	1.3GHz, 2.7GHz	N/A	15kHz	N/A	<-90dBc/Hz	N/A	N/A	N/A	£856.00