Quick take
Shopping for oscilloscopes signal spectrum analyzers usually comes down to one question: are you trying to view and measure RF signals at a bench, or do you need a unit that travels with you? This lineup starts with a pocket-size analyzer, moves up to a compact portable unit, then to a bench-oriented analyzer, and tops out with an Agilent bench instrument. Before you compare specs, decide whether you need portability, desktop workflow, or maximum frequency range. That will point you to the right listing faster than the price tag alone.
Listed price comparison
| Product | Listed price | Price bar |
|---|---|---|
| TinySA Tiny Spectrum Analyzer Frequency Analyzer 100kHz to 960MHz MF HF Used | USD 39.98 | |
| Spectrum Analyzer 4" TinySA Ultra+ ZS407 10kHz-1.5GHz RF Signal Generator 32GB | USD 199.00 | |
| Aaronia AG HF 6080 RF Spectrum Analyzer | USD 400.00 | |
| Agilent N9320B 9 kHz - 3 GHz RF Spectrum Analyzer | USD 1,200.00 |
Decision matrix
| Product | Best for | Main trade-off |
|---|---|---|
| TinySA Tiny Spectrum Analyzer | Simple HF/UHF signal checks | Used condition; lesser UHF input quality |
| Spectrum Analyzer 4" TinySA Ultra+ ZS407 | Portable unit with storage | 4-inch screen is compact |
| Aaronia AG HF 6080 | Computer-connected analysis | Requires a computer; used unit |
| Agilent N9320B | Wide-range lab and troubleshooting | Out of calibration; sold as-is |
Product notes
TinySA Tiny Spectrum Analyzer Frequency Analyzer 100kHz to 960MHz MF HF Used
The TinySA Tiny is the lowest-priced way into this lineup. It covers 100kHz to 960MHz with two inputs: the MF/HF/VHF path handles 0.1MHz to 350MHz, and the UHF input handles 240MHz to 960MHz. The UHF input is the lesser-quality of the two, which matters if you plan to spend most of your time above 350MHz. It also includes a built-in calibration signal generator and can double as a signal source. The used condition keeps the price low, but it also means you should expect wear that a new unit wouldn't have. For learning spectrum analysis or doing casual RF checks, this is the easiest starting point.
Spectrum Analyzer 4" TinySA Ultra+ ZS407 10kHz-1.5GHz RF Signal Generator 32GB
This is the only new unit in the group, and it pairs a spectrum analyzer with an RF signal generator in one compact package. The 32GB of storage gives you room to hold sweep data or other files, and the 4-inch display keeps the overall size small for carrying to a job or field session. A rechargeable battery adds to the portability. The main limitation is the screen: at 4 inches, you get a compact tool rather than a large lab display, so dense spectrum views will be tighter. If you want a fresh unit with generator capability and storage without taking over a bench, this fits that spot.
Aaronia AG HF 6080 RF Spectrum Analyzer
The Aaronia AG HF 6080 is a used PC-based signal analyzer, so it's aimed at someone who already works with a computer at the desk. Instead of carrying a full front panel, it leans on software and the display of the connected PC. That makes it a reasonable match for a desktop workflow where you're logging or analyzing signals over time. The trade-off is that it isn't self-contained: without the computer connection, you don't get the analyzer experience. It's also a used unit, so previous use is part of the deal. If your bench already revolves around a PC, this is the option that fits that style.
Agilent N9320B 9 kHz - 3 GHz RF Spectrum Analyzer
The Agilent N9320B has the widest listed frequency range in this set, covering 9 kHz to 3 GHz, and its displayed average noise level of -130 dBm makes it a candidate for sensitive RF work. That combination is why someone with a lab or troubleshooting bench would look here first. The caveat is condition: the used unit powers on and functions, but it is out of calibration, sold as-is, and comes without accessories or a power cable. If you need calibrated measurements, you'll have to deal with that before relying on the readings. For broad coverage and a familiar bench form factor, this is the widest-ranging choice.
Final recommendation by use case
- Go with the TinySA Tiny Spectrum Analyzer if you want the smallest cash outlay for HF/UHF signal checks.
- Choose the Spectrum Analyzer 4" TinySA Ultra+ ZS407 if you prefer a new unit with a compact screen for portable work.
- Pick the Aaronia AG HF 6080 if you want an analyzer that fits a desktop workflow.
- Select the Agilent N9320B if you need a bench-style analyzer in this lineup.
