Input:<\/strong> 7\u201370 V DC<\/p>\n\n\n Resolution:<\/strong> 10 mV \/ 10 mA<\/p>\n\n\n Features:<\/strong> Memory presets (M0\u2013M9), OVP\/OCP\/OPP protection, capacity\/energy readout (Ah\/Wh), RD6024W variant adds WiFi + USB app<\/p>\n\n<\/ul>\n\n\n\n Great for LED strings, battery charging profiles, motor bench runs, and anything where you need 60 V at high current without melting the room. It’s a switcher, so for low-noise analog or RF work I reach for the linear LAB supply instead.<\/p>\n\n\n\n A classic 30 V \/ 5 A adjustable linear bench supply with coarse and fine knobs, dual LED displays. Linear regulation means very low output noise and ripple \u2013 typically around 1 mVrms. This is the go-to for sensitive analog, op-amp, sensor, and RF front-end work where switching ripple from the RD6024 would be a problem.<\/p>\n\n\n\n\n Output:<\/strong> 0\u201330 V \/ 0\u20135 A<\/p>\n\n\n Resolution:<\/strong> 10 mV \/ 1 mA<\/p>\n\n\n Regulation:<\/strong> \u2264 0.01% + a few mV (typical)<\/p>\n\n\n Max power:<\/strong> ~150 W<\/p>\n\n<\/ul>\n\n\n\n It’s a widely rebadged OEM design (also sold as Longwei, Wanptek, Kaisi, etc.), so the exact ripple\/regulation numbers can vary by batch. Single-channel and 150 W ceiling, but the clean output is worth the trade-off for delicate work.<\/p>\n\n\n\n A benchtop electronic load that sinks and dissipates DC power so you can test power supplies, batteries, chargers, and solar panels without a physical resistor bank. Runs in constant-current, constant-voltage, constant-resistance, or constant-power mode, with dynamic (pulsed) loading for transient-response testing.<\/p>\n\n\n\n\n Max power:<\/strong> 300 W<\/p>\n\n\n Input:<\/strong> 0\u2013120 V \/ 0\u201330 A<\/p>\n\n\n Resolution:<\/strong> 1 mV \/ 1 mA<\/p>\n\n\n Modes:<\/strong> CC, CV, CR, CP + dynamic\/pulsed loading<\/p>\n\n\n Functions:<\/strong> Battery discharge to cut-off (Ah\/Wh capacity), list\/timed sequences, short-circuit test<\/p>\n\n<\/ul>\n\n\n\n The 300 W envelope is the constraint: at 120 V you can only pull ~2.5 A; at 30 A you’re capped near ~10 V. Power, voltage, and current limits form the usual load “operating box.” USB and RS-232 standard, SCPI scriptable for automated test benches.<\/p>\n\n\n\n A low-power programmable AC source that outputs a clean, adjustable sine (and arbitrary waveforms with options) at a programmable frequency, with built-in power metering. Used for powering or stressing a DUT at nominal, brown-out, or over-voltage mains conditions \u2013 at 50\/60 Hz or aviation 400 Hz.<\/p>\n\n\n\n\n Rated output:<\/strong> 500 VA<\/p>\n\n\n Output voltage:<\/strong> 0\u2013310 Vrms (155\/310 V ranges)<\/p>\n\n\n Frequency:<\/strong> 45\u2013500 Hz<\/p>\n\n\n THD:<\/strong> \u2264 0.5% (resistive load)<\/p>\n\n\n Metering:<\/strong> Vrms, Irms, Ipk, frequency, W, VA, PF, CF on front panel<\/p>\n\n\n Features:<\/strong> Surge\/dip control, arbitrary waveform, 255-step sequences, 10 preset memories<\/p>\n\n<\/ul>\n\n\n\n Useful for universal-mains product testing (115 V vs 230 V behaviour from one box), 400 Hz avionics testing, inrush\/power-factor\/standby-power characterisation. 500 VA is the ceiling \u2013 a 2 A @ 230 V heater is already near max.<\/p>\n\n\n\n Also very useful for safety! with the galvanic isolation I can test and work on 230V devices with less worry about electrocuting myself, or causing a breaker to trip, and better protection against fault conditions.<\/p>\n\n\n\n A high-resolution bench DMM with a colour graphical display (trend chart, histogram, bar meter), true-RMS AC, and fast digitising. Sits between the entry 34461A and the 7\u00bd-digit 34470A: more counts, lower noise, and much faster reading rates.<\/p>\n\n\n\n\n Resolution:<\/strong> 6\u00bd digits (~30,000,000 counts)<\/p>\n\n\n Reading rate:<\/strong> up to 5,000 rdgs\/s (50,000 with DIG option)<\/p>\n\n\n DCV accuracy:<\/strong> ~0.0035% (best range\/time)<\/p>\n\n\n DCV input impedance:<\/strong> 10 M\u03a9 or >10 G\u03a9 selectable<\/p>\n\n\n Memory:<\/strong> 10,000 std (2M with MEM option)<\/p>\n\n<\/ul>\n\n\n\n Bench reference meter for voltage\/resistance to ppm-class work. The DIG + MEM options turn it into a light data acquisition \/ transient digitiser. Selectable >10 G\u03a9 input impedance avoids loading high-impedance nodes on the low DCV ranges.<\/p>\n\n\n\n A top-class 500,000-count true-RMS handheld DMM with a large dual display. Aimed at electronics, plant automation, and power distribution work. The 500k counts and 1 \u00b5V DCV resolution rival a bench meter for many tasks.<\/p>\n\n\n\n\n Counts:<\/strong> 500,000 (5 \u2158-digit), dual display<\/p>\n\n\n DCV accuracy:<\/strong> 0.03%<\/p>\n\n\n DCV resolution:<\/strong> 1 \u00b5V<\/p>\n\n\n AC bandwidth:<\/strong> 20 kHz (TRMS AC + AC+DC)<\/p>\n\n\n Safety:<\/strong> CAT IV 1000 V, 12 kV transient<\/p>\n\n\n Features:<\/strong> Beep-Jack (wrong-terminal warning), CREST 1 ms peak capture, X-Speed capacitance, nS conductance range, 4\u201320 mA loop current<\/p>\n\n<\/ul>\n\n\n\n General high-resolution bench + field DMM. CAT IV 1000 V makes it safe for distribution\/industrial work. The nS conductance range is handy for leakage and insulation checks. X-Speed capacitance avoids the long settle time typical of large-cap measurement.<\/p>\n\n\n\n A rugged German-made professional handheld that goes far beyond V\/A\/\u03a9. It measures single-phase active\/reactive\/apparent power, power factor, energy, harmonics, and mains disturbances. A precision power-quality and metrology tool with over 35 measuring functions.<\/p>\n\n\n\n\n Resolution:<\/strong> 60,000 digits, triple display<\/p>\n\n\n DCV accuracy:<\/strong> \u00b1(0.02% + 15 d) with ZERO<\/p>\n\n\n V AC bandwidth:<\/strong> 100 kHz TRMS<\/p>\n\n\n Safety:<\/strong> 600 V CAT III \/ 300 V CAT IV<\/p>\n\n\n Logger:<\/strong> 300,000 measured values, 0.5 ms sampling<\/p>\n\n\n Power quality:<\/strong> Harmonics up to 15th, THD, mains disturbance recording<\/p>\n\n\n Functions:<\/strong> W, VAr, VA, PF, Wh, VArh, VAh, DCR, capacitance, frequency, temperature (Pt100, TC)<\/p>\n\n<\/ul>\n\n\n\n Field power-quality spot checks, appliance\/PV energy profiling, and precision metrology (0.02% DCV class) in one handheld.<\/p>\n\n\n\n Rigol’s entry-level 4-channel scope. The hardware is identical to the higher DS1104Z \u2013 bandwidth and options are just software licenses. This unit is fully unlocked: 100 MHz bandwidth and the entire option bundle enabled.<\/p>\n\n\n\n\n Channels:<\/strong> 4<\/p>\n\n\n Bandwidth:<\/strong> 100 MHz (unlocked from 50)<\/p>\n\n\n Sample rate:<\/strong> 1 GSa\/s (1 ch) \/ 500 MSa\/s (2 ch) \/ 250 MSa\/s (4 ch)<\/p>\n\n\n Memory:<\/strong> 24 Mpts (enabled)<\/p>\n\n\n Waveform capture rate:<\/strong> 30,000 wfms\/s<\/p>\n\n\n ADC:<\/strong> 8-bit<\/p>\n\n\n Unlocked features:<\/strong> Serial decode (RS-232\/UART, I\u00b2C, SPI), advanced triggers, waveform recording\/playback<\/p>\n\n<\/ul>\n\n\n\n Excellent general-purpose 4-channel bench scope. The deep 24 Mpts memory and serial decode make it strong for embedded\/MCU debugging on I\u00b2C\/SPI\/UART buses. 8-bit ADC and 100 MHz are the practical limits, for finer amplitude resolution I’d go for the HMO1202’s HiRes mode or a 12-bit scope.<\/p>\n\n\n\n A well built 2-channel bench scope from the R&S\/HAMEG HMO1000 line. Known for a deep toolset (hardware zoom, serial decode, FFT, optional MSO + generators) and a solid front-end. The HMO1202 is the 200 MHz member of the entry HMO1000 series.<\/p>\n\n\n\n\n Channels:<\/strong> 2 analog (+ 8 digital with MSO option)<\/p>\n\n\n Bandwidth:<\/strong> 200 MHz<\/p>\n\n\n Sample rate:<\/strong> 1 GSa\/s (2 GSa\/s interleaved)<\/p>\n\n\n Memory:<\/strong> 1 MSa (2 MSa interleaved), hardware zoom<\/p>\n\n\n ADC:<\/strong> 8-bit<\/p>\n\n\n Options available:<\/strong> MSO logic probe, serial decode (I\u00b2C, SPI, UART, CAN, LIN), pattern\/function generator<\/p>\n\n<\/ul>\n\n\n\n Higher analog bandwidth (200 MHz) than the DS1054Z \u2013 good for faster edges and RF-ish signals up to a couple hundred MHz. Hardware zoom and deep-ish memory make scrolling through long captures pleasant. Pair with the MSO probe to debug mixed analog+digital buses.<\/p>\n\n\n\n A bench LCR meter that measures inductors, capacitors, and resistors from 20 Hz to 300 kHz. A 4.3″ colour display shows all key parameters at once. Aimed at component characterization, incoming inspection, and small-production sorting.<\/p>\n\n\n\n\n Frequency:<\/strong> 20 Hz \u2013 300 kHz, fully adjustable<\/p>\n\n\n Accuracy:<\/strong> 0.05% basic<\/p>\n\n\n Parameters:<\/strong> L, C, R, Z, G, B, Y, D, Q, phase angle, DCR<\/p>\n\n\n Functions:<\/strong> 9-bin go\/no-go sorting, 300-point frequency sweep, adjustable measurement speed<\/p>\n\n\n Interfaces:<\/strong> USB, GPIB, LAN<\/p>\n\n<\/ul>\n\n\n\n Characterize capacitor ESR\/D and inductor Q vs frequency across the full sweep. Fast bin sorting on a production bench. 0.05% basic accuracy is strong for the price class.<\/p>\n\n\n\n A pocket VNA that measures S11 (reflection) and S21 (transmission) from 50 kHz to 6.3 GHz. Uses a single mixer with internal RF switches, computes TDR\/DTF (distance-to-fault) via IFFT. Runs standalone on a 4″ touchscreen with a battery, or tethered to a PC via NanoVNA-compatible software.<\/p>\n\n\n\n\n Frequency range:<\/strong> 50 kHz \u2013 6.3 GHz<\/p>\n\n\n Measurements:<\/strong> S11 (reflection), S21 (transmission)<\/p>\n\n\n Derived:<\/strong> TDR \/ distance-to-fault via IFFT<\/p>\n\n\n Dynamic range:<\/strong> up to ~90 dB (tapers toward 6 GHz)<\/p>\n\n\n Functions:<\/strong> SWR, return loss, complex impedance\/Smith chart, cable loss, filter response, SOLT calibration<\/p>\n\n<\/ul>\n\n\n\n Antenna tuning\/SWR, filter and matching-network characterisation, coax fault-finding. Covers amateur radio, IoT, and 5.8 GHz WiFi\/video-tx bands. Best performance is at HF\/VHF\/UHF \u2013 dynamic range and accuracy fall off toward 6 GHz. Always calibrate (SOLT) at the measurement plane before trusting readings.<\/p>\n\n\n\n A USB software-defined radio that can receive or transmit across a very wide frequency range. HackRF Pro keeps the HackRF One architecture and software compatibility but improves RF performance, timing precision, and adds a TCXO, FPGA (vs CPLD), and USB-C.<\/p>\n\n\n\n\n Frequency:<\/strong> 100 kHz \u2013 6 GHz (tuning 0 Hz \u2013 7.1 GHz)<\/p>\n\n\n Duplex:<\/strong> Half-duplex (RX or TX, not both)<\/p>\n\n\n Sample rate:<\/strong> up to 20 Msps (8-bit I\/Q)<\/p>\n\n\n Extended precision:<\/strong> 16-bit samples at low sample rates (typical ENOB 9\u201311)<\/p>\n\n\n Half precision:<\/strong> 4-bit at up to 40 Msps<\/p>\n\n\n Reference clock:<\/strong> Built-in TCXO<\/p>\n\n<\/ul>\n\n\n\n Broadband spectrum exploration, signal reverse-engineering, protocol RX\/TX experiments, and RF education. Compatible with GNU Radio, SDR#, GQRX, and the standard hackrf tools. Half-duplex only \u2013 for simultaneous RX+TX you’d need two radios.<\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" I’ve spent years collecting and building test equipment for the bench. It started with the bare essentials \u2013 a cheap scope and a multimeter \u2013 and grew into a proper lab setup that covers everything from component-level debugging to power electronics, RF, and production-style testing. This post is a showcase<\/p>\nLAB PS3005D \u2013 Linear DC Bench Supply<\/h3>\n\n\n\n\n\n
Korad KEL103 \u2013 Programmable DC Electronic Load<\/h3>\n\n\n\n\n\n
GW Instek APS-7050 \u2013 Programmable AC Power Source<\/h3>\n\n\n\n\n\n
Multimeters<\/h2>\n\n\n\n
Keysight 34465A \u2013 6\u00bd-Digit Bench DMM<\/h3>\n\n\n\n\n\n
Brymen BM867s \u2013 500,000-Count Handheld DMM<\/h3>\n\n\n\n\n\n
Gossen Metrawatt METRAHit ENERGY M249A \u2013 System Multimeter<\/h3>\n\n\n\n\n\n
Oscilloscopes<\/h2>\n\n\n\n
Rigol DS1054Z \u2013 4-Channel DSO (unlocked to 100 MHz)<\/h3>\n\n\n\n\n\n
Rohde & Schwarz HMO1202 \u2013 2-Channel DSO<\/h3>\n\n\n\n\n\n
Component & Impedance Testing<\/h2>\n\n\n\n
B&K Precision 891 \u2013 300 kHz LCR Meter<\/h3>\n\n\n\n
![\"\"](\"https:\/\/labparvum.com\/wp-content\/uploads\/2026\/09\/R1217581-01-1024x575.webp\")
RF & Antennas<\/h2>\n\n\n\n
LiteVNA 64 \u2013 Vector Network Analyzer<\/h3>\n\n\n\n
![\"\"](\"https:\/\/labparvum.com\/wp-content\/uploads\/2026\/09\/litevna64_000-1024x768.jpg\")
HackRF Pro \u2013 Software Defined Radio<\/h3>\n\n\n\n
![\"\"](\"https:\/\/labparvum.com\/wp-content\/uploads\/2026\/09\/Screenshot-from-2026-09-23-23-38-36-914x1024.png\")
![\"\"](\"https:\/\/labparvum.com\/wp-content\/uploads\/2026\/09\/block-diagram-pro-1024x576.webp\")