Deciding between two signal analyzers often means choosing between a ready-to-use portable tool and a benchtop instrument that may need work. The first option is the Spectrum Analyzer 4" TinySA Ultra+ ZS407, listed at $199 as a New unit that also includes an RF signal generator. The second is the Agilent N9010A /507 /B25 /PFR EXA RF Signal Analyzer, priced at $4,111 and listed as for parts or not working.
Quick Verdict
If you want a functional analyzer that can travel, the TinySA Ultra+ ZS407 is the clear pick. It's described as New, has a 4-inch touchscreen, a 5000mAh rechargeable battery, and 32GB of storage, plus a built-in LNA and attenuator. The Agilent N9010A is a benchtop instrument, but the listing states it's for parts or not working, with system errors and a missing front-panel key, so it is not a ready-to-run alternative.
At a Glance
| Product | Listed Price | Condition | Type | Price Bar |
|---|---|---|---|---|
| Spectrum Analyzer 4" TinySA Ultra+ ZS407 | USD 199.00 | New | Portable spectrum analyzer with RF signal generator | |
| Agilent N9010A /507 /B25 /PFR EXA | USD 4,111.00 | For parts or not working | Benchtop spectrum analyzer |
Where Each Product Wins
The TinySA Ultra+ wins when you need a low-priced, working unit for field use. The Agilent N9010A wins only if you are deliberately shopping for a non-working benchtop analyzer for its parts or as a repair subject. Given the listed errors, the Agilent is not suitable for immediate measurements.
Product Notes
Spectrum Analyzer 4" TinySA Ultra+ ZS407 10kHz-1.5GHz RF Signal Generator 32GB
The TinySA Ultra+ ZS407 bundles a spectrum analyzer and RF signal generator into a 4-inch touchscreen handheld. At $199, it is the more accessible route into signal checking, and the listing describes it as New with a 5000mAh rechargeable battery and 32GB of storage. The built-in LNA and attenuator add flexibility for input levels. If you need a battery-powered unit for bench or field work, this is a practical choice. The main caveat is that the description starts by naming the NanoVNA-H4, so the listing mixes two product names; treat the title as the primary model.
Agilent N9010A /507 /B25 /PFR EXA RF Signal Analyzer, 9 KHz to 7 GHz
The Agilent N9010A may appeal to a lab with repair capabilities. The listing price is $4,111, and it specifies a 9 KHz to 7 GHz frequency range, plus installed options such as /B25 and /PFR. However, the condition is clearly for parts or not working, with system alignment failure, a ripped front-panel key, and multiple error-log entries. The unit is untested and sold as-is, so the risk is very high. This is a parts unit first, a usable analyzer second.
Final Choice by Use Case
If you need to begin measuring right away, the TinySA Ultra+ ZS407 is the only listing here described as New. If you are specifically after a benchtop analyzer for components or as a troubleshooting exercise, the Agilent N9010A could be interesting, but only if you accept that the listing says it is for parts and not working. For most shoppers, the $199 TinySA Ultra+ is the practical choice.
