Quick take
If you want an RF spectrum analyzer that powers on and functions, the Agilent N9320B is the practical pick from this group. If you want the lowest-cost way to look at TV/RF signals, the Sencore FS74 is an inexpensive used unit. If you need the wide frequency reach of the Agilent N9010A EXA, be prepared for a for-parts/not-working condition at either of its two asking prices.
Listed-price comparison
| Analyzer | Listed Price | Price Bar | Condition & Key Details |
|---|---|---|---|
| Agilent N9010A EXA, 9 KHz to 7 GHz | $4,111 | For parts/not working, untested, as-is | |
| Agilent N9010A EXA, 9 KHz to 7 GHz | $4,850 | For parts/not working, untested, as-is | |
| Agilent N9320B, 9 kHz to 3 GHz | $1,200 | Used, powers on, out of calibration, no power cable | |
| Sencore FS74 Channelizer SR | $150 | Used, TV-RF signal analyzer, CRT, case and supply included |
Decision matrix
Start with the workload you need to support rather than with the price.
- Need a working general-purpose RF spectrum analyzer for lab, classroom, or troubleshooting? The Agilent N9320B is the only unit here described as powering on and functioning properly.
- Need to inspect TV/RF signals at the lowest entry cost? The Sencore FS74 is a used, working vintage unit and includes the carrying case and power supply.
- Need the wider RF coverage of the EXA model and have repair capability? Look first at the lower-priced Agilent N9010A EXA. Both N9010A units carry the same for-parts condition and error details, so start with the lower asking price.
- Need two identical spare chassis of the same N9010A configuration? The pair of N9010A units provides that, but both are for parts or not working.
Product notes
Agilent N9010A /507 /B25 /PFR EXA RF Signal Analyzer, 9 KHz to 7 GHz
At $4,111, this is the lower-priced of the two N9010A EXA units. If your requirement is 9 KHz-to-7 GHz frequency coverage, this model brings that span together with installed options /507, /B25, /PFR, and the N9060A/N9073A measurement-application set. The reason to choose it is straightforward: it is the less expensive way to get that exact configuration in for-parts condition. The limitation is equally clear: the unit is listed as for parts or not working, with no signal trace, a Misc/System Alignment Failure, a system error, a ripped front-panel key, and multiple error-log entries described. It is untested and sold as-is, so plan for service, calibration, or parts harvesting.
Agilent N9010A /507 /B25 /PFR EXA RF Signal Analyzer, 9 KHz to 7 GHz
This second N9010A EXA unit is priced at $4,850. It carries the same model designation as the lower-priced unit, and both units share the same for-parts/not-working status and the same error details. Choose it when you need a second chassis of this configuration and the higher asking price is acceptable. Its limitation is that the extra price does not buy a different condition: the unit is still untested, as-is, and not functional. If you compare the two units side by side, the lower-priced unit is the better starting point because the configuration and described faults are the same.
Agilent N9320B 9 kHz - 3 GHz RF Spectrum Analyzer
At $1,200, the N9320B is the working RF analyzer in this group. It powers on and functions properly, covers 9 kHz to 3 GHz, and includes a displayed average noise level of -130 dBm with a resolution bandwidth range of 10 Hz to 1 MHz. That makes it the most direct option for RF testing, troubleshooting, education, and laboratory use. The trade-offs are that it is out of calibration, sold as-is, and the accessories and power cable are not included. You get a functional core instrument, but you should budget for calibration service and the missing accessories before relying on measurements.
Sencore FS74 Channelizer SR TV-RF Signal Analyzer Nice Condition
The FS74 is the low-cost vintage option at $150. It is described as in good working condition, with a bright and clear CRT, and it can receive off-air signals and FM broadcast. The package includes the carrying case and power supply, so it is portable as long as you use the included supply; the internal batteries are dead. Choose it if you want the least expensive way to check TV/RF signals and are comfortable with vintage equipment. Its limitation is that it is a CRT-based TV-RF signal analyzer rather than a modern general-purpose spectrum analyzer; the as-is vintage condition is part of the trade-off at this price.
Final recommendation by use case
- First functional RF spectrum analyzer for a lab bench: the Agilent N9320B, because it is the unit that powers on and functions.
- Lowest-cost TV/RF signal checking: the Sencore FS74, with its included carrying case and power supply.
- Wide-coverage repair project: the lower-priced Agilent N9010A EXA, because the two N9010A units are in the same for-parts state and the lower price is the sensible starting point.
