I get a lot of questions from teams trying to buy or specify an Anritsu handheld. The search terms don't always match the product labels. So, starting with the short answers: Anritsu Corporation is still active. The S332E is a Site Master, not a Spectrum Master. And yes, used Anritsu test equipment can still be a practical buy if you check it before it goes into a truck. The questions below are the ones I actually deal with during acceptance reviews.
No. The front panel says Site Master. The S332E belongs to Anritsu's Site Master family, which is built for cable and antenna testing. Spectrum Master is a separate line of handheld spectrum analyzers. The two names get tangled in search results, especially when someone wants an RF analyzer and searches for the model they saw at a previous job. I have rejected order paperwork where the model number, product family, and intended measurement did not all match. That type of mismatch sends a tech to a site with the wrong tool.
If you need to inspect a signal or find interference, the Spectrum Master line is the one. If you need to check return loss, VSWR, cable loss, or distance-to-fault, the S332E is in the right family. That's not a tiny detail. The family name tells you what the design actually measures.
'Network tester' is a broad label. The S332E is a cable and antenna analyzer. In practical terms, it performs the physical-layer checks that tell you whether the feeder, connector, or antenna is creating a problem. Return loss, VSWR, and distance-to-fault are its core strengths. I've used that kind of Anritsu handheld to identify a bad jumper on a rooftop before a climb crew was dispatched. It saved an unnecessary tower climb.
It is not a full vector network analyzer. It is not a full lab spectrum analyzer. It is a field tool. The limitation is fine if you respect it. (Note to self: when a listing says 'all-in-one,' I now ask which measurements are included and which are only connectors on the front panel.)
Anritsu Corporation is still around and still committed to test and measurement. According to Anritsu's corporate site (anritsu.com), the company traces its roots to 1895. Its current public focus is broader than the handheld field testers many engineers remember. Anritsu is working on 5G Advanced, 6G research, O-RAN, high-speed digital design, optical communications, and IoT. When you see 'Anritsu Corp doing now' searches, that's usually what comes up.
What that means for a network tester is simple: Anritsu is following the network roadmap, not abandoning it. Radio technology changes, but someone still has to verify the cable and antenna path before the next band is turned on. Old field tools and new network standards coexist for a long time.
Only the passive part, and only within its rated band. Before a 5G radio is connected, the feeder and antenna path still need to be verified. The S332E can measure whether that path is healthy. It will not decode 5G NR, measure modulation quality, or test a mmWave panel. Active signal work belongs on a Spectrum Master or a purpose-built tester. If you need PIM testing, that is a separate investment.
The convenient answer from resellers is always 'buy the newest thing.' My experience says it depends. A used S332E can still make sense for a two-person field crew if the unit is within its rated frequency range, the certificate is valid, and the job calls for cable/antenna analysis. I watched an older S332E find a damaged connector while a newer all-purpose analyzer sat unused because nobody had set up the correct measurement. The limitation was not the hardware. It was the workflow.
Context matters, though. If the work involves PIM certification, active 5G signal analysis, or mmWave frequencies, the S332E is not the tool no matter how clean the housing looks. And buying used is not automatically smart. It is only smart when the unit, application, and price all align.
I review tools for quality acceptance, and this is my list when an S332E comes into the shop:
This is not about being paranoid. It's about avoiding the classic quality failure: the measurement is convincing and wrong. A bad connector on the test port can create a problem that doesn't exist in the field. I'd rather reject a unit at intake than explain why a technician re-climbed a tower because of bad test gear.
If you have passive intermodulation complaints, yes. This is the question people don't ask until after they have bought the wrong tool. The S332E tells you if the RF path is matched, but it won't tell you if two rusty connectors are creating intermodulation inside a passive link. PIM is generated by nonlinear junctions that can look perfectly fine on return loss. So if the site contract includes PIM requirements, get a PIM analyzer or rent one. Don't assume one box is the whole quality story.
No, and I will defend that answer. Small doesn't mean unimportant. When I started out, the vendors who treated my small orders seriously were the ones I later used for larger budgets. The same applies to equipment selection: a small crew doesn't need a huge lab analyzer, but it does need reliable verification. A used S332E in the right band covers a huge number of cable and antenna failures. If it saves one unnecessary site visit, it has already started paying rent.
That said, buy the tool that matches the actual contract. Don't buy a Site Master if the work order is really about signal interference. Don't buy a Spectrum Master if the work order is really about return loss. Start with the problem, not the brand. Anritsu is a good supplier, but the correct model is better than a familiar one.