Choosing between the Aeroflex IFR Marconi 2390 / AN930A and the Agilent N9320B comes down to one practical question: do you need a working spectrum analyzer now, or are you willing to take on a repair project that costs less? The Aeroflex is a parts-only unit, while the Agilent is a used instrument described as functioning. The right pick depends on your ability to troubleshoot and calibrate test equipment.
Quick verdict
The Agilent N9320B is the sensible choice if you need to measure RF signals without repairing an instrument first. It powers on and functions properly, though it needs calibration and a power cable is not included. The Aeroflex IFR Marconi 2390 / AN930A is the better choice only if you are prepared to fix the controller configuration issue that prevents testing, and you see value in a project with a clear repair path.
At a glance
| Product | Listed Price | Condition | Key Specs | Price Signal |
|---|---|---|---|---|
| Aeroflex IFR Marconi 2390 / AN930A | $299.95 | For parts or not working | 22 GHz span | |
| Agilent N9320B | $1,200.00 | Used | 9 kHz to 3 GHz; DANL -130 dBm |
Where each product wins
The Aeroflex Marconi 2390 wins on entry price and on being a physically complete high-frequency analyzer that could be restored once the EEPROM problem is corrected. The Agilent N9320B wins on being a working instrument with a clearly stated frequency range and noise floor, ready for lab or field use after you arrange calibration. For most people shopping for a spectrum analyzer, the Agilent's functional condition removes the biggest risk.
Product notes
Aeroflex IFR Marconi 2390 / AN930A 22Ghz Spectrum Analyzer TRK GEN PARTS ONLY
If your bench projects already include replacing controllers or working with test equipment internals, the Marconi 2390 is worth a close look. The unit is described as physically complete and includes the tracking generator factory option, and it powers up and boots with a good display, power supply, and controller. The catch is that the configuration EEPROM was not moved when the controller was replaced, so testing fails. That makes this a repair candidate, not a ready-to-run analyzer. The condition is stated as for parts or not working, so expect to correct the EEPROM configuration before it becomes usable. If that kind of work is not in your skill set, this unit will not serve as a ready-made analyzer.
Agilent N9320B 9 kHz - 3 GHz RF Spectrum Analyzer
The Agilent N9320B is the more direct route to a working RF measurement setup. It powers on and functions properly, so it can support RF testing, troubleshooting, education, or laboratory use once you connect a power cable and arrange calibration. The resolution and video bandwidth ranges of 10 Hz to 1 MHz give you flexibility for examining signal detail. The limitation is that the unit is out of calibration and sold as-is, with accessories and a power cable not included. What you gain is a working instrument that does not require a repair project before first use. You will still need to arrange calibration before relying on precise readings.
Final choice by use case
- Choose the Aeroflex IFR Marconi 2390 / AN930A if you are shopping for a $299.95 bench-repair project and have the ability to correct or replace the configuration EEPROM. A successful repair gives you a physically complete spectrum analyzer with a tracking generator, without spending $1,200.
- Choose the Agilent N9320B if you need a working RF spectrum analyzer today and can accept the out-of-calibration status and missing accessories. The $1,200 price buys a used instrument that powers on and functions as described, with a clearly defined frequency range and noise floor.
For the majority of shoppers who simply need to analyze signals, the Agilent N9320B is the safer buy. For hobbyists and technicians who enjoy reviving test equipment, the Aeroflex Marconi 2390 is the more interesting challenge.
