Choosing between two signal spectrum analyzers can be tough, especially when one is a high-priced used unit and the other is a low-priced parts-only unit. The Agilent Keysight E5052B and the Agilent N9010A EXA are both 7 GHz-class instruments, but they serve very different buyers. This head-to-head breaks down the real trade-offs.
Quick Verdict
If you need a high-performance signal source/phase noise analyzer and your budget allows, the Agilent Keysight E5052B is the obvious pick. It's a used unit listed in good condition, with a specification that matches its $36,500 price. The Agilent N9010A EXA is the budget alternative, but the listing is explicit that it's for parts or not working, so any expectation of immediate use should be set aside.
Comparison at a Glance
| Agilent Keysight E5052B | Agilent N9010A /507 /B25 /PFR EXA | |
|---|---|---|
| Price | USD 36,500.00 | USD 4,850.00 |
| Condition | Used | For parts or not working |
| Frequency range | 10 MHz to 7 GHz | 9 kHz to 7 GHz |
| Analyzer type | Signal source / phase noise | RF signal (spectrum) |
| Relative price bar |
Where Each Product Wins
The E5052B wins for immediate lab use and advanced phase noise analysis. The N9010A wins on entry price and, in theory, a wider low-frequency range, but its condition means any win is dependent on repair.
Product Notes
Agilent Keysight E5052B
The E5052B is the high-performance option. It's a signal source/phase noise analyzer built for demanding measurements like VCO characterization and clock jitter evaluation in high-speed data links. The description emphasizes high throughput and usability, and the unit can be expanded beyond 7 GHz with optional accessories. Choose it for any serious RF lab that needs reliable phase noise data without waiting for repairs. The limitation is its specialized nature: it starts at 10 MHz, so it won't measure low-frequency signals, and it lacks the general spectrum analysis features you might expect from a standard RF analyzer. If your work is all about oscillators and signal sources, this is a strong fit.
Agilent N9010A /507 /B25 /PFR EXA
The N9010A EXA is the budget entry, with a price tag that is hard to ignore. It's listed as an RF signal analyzer covering 9 kHz to 7 GHz and includes installed options like /507, /B25, /PFR, N9060A, and N9073A. However, it is sold as surplus and untested, with the listing reporting no signal trace, system alignment failure errors, a missing front-panel key, and multiple error log entries. Choose it if you need parts for another N9010A, enjoy repair challenges, or want a low-cost project. The limitation is that the unit may not function after repair attempts, and the all-sales-final policy means you're assuming that risk. If you can revive it, you get a capable analyzer; if not, it's a parts bin.
Final Choice by Use Case
- For a working lab instrument with advanced phase noise and signal source analysis features, the Agilent Keysight E5052B is the clear winner.
- For a parts donor or an ambitious repair project, the Agilent N9010A EXA is the budget pick.
- If you simply need a general-purpose spectrum analyzer that works out of the box, neither product is ideal: the E5052B is too specialized, and the N9010A is not operational.
