Best SWR Meters & Antenna Analyzers for Ham Radio (2026)
For HF/6m/2m, get the Daiwa CN-501H2; for 2m/70cm, get the CN-501V. If you build antennas, choose the RigExpert AA-650 ZOOM.
Quick picks
Daiwa CN-501H2
The straightforward cross-needle meter I’d use for checking ordinary HF through 2 m transmitters and antenna systems.
- 1.8–150 MHz covers HF, 6 m and 2 m
- 20 / 200 / 2000 W ranges with simultaneous forward power, reflected power and SWR
- Limitation: stops at 150 MHz, so it cannot check a 70 cm station
Daiwa CN-501V
Choose this instead when the station you are testing is VHF/UHF and 70 cm actually needs to be inside the meter’s calibrated range.
- 140–525 MHz covers both 2 m and 70 cm
- 20 / 200 W ranges suit common mobile and base radios
- Limitation: it does not cover HF — frequency coverage is the reason to choose between the two Daiwa meters
RigExpert AA-650 ZOOM
Buy an analyzer when you want to find resonance, inspect impedance, sweep bands and diagnose feedlines rather than merely read SWR while transmitting.
- 100 kHz–650 MHz covers HF through 70 cm
- SWR sweeps, R/X, Smith chart, cable-loss and TDR tools
- Limitation: much more expensive and it is not an inline transmitter power meter
SWR meter or antenna analyzer?
Swipe → to see the full comparison
| Tool | Frequency | Measures TX power | Sweeps frequency | Shows R / X | Best for | Check |
|---|---|---|---|---|---|---|
| Daiwa CN-501H2 | 1.8–150 MHz | Yes | No | No | HF / 6 m / 2 m live checks | Current price → |
| Daiwa CN-501V | 140–525 MHz | Yes | No | No | 2 m / 70 cm live checks | Current price → |
| RigExpert AA-650 ZOOM | 0.1–650 MHz | No | Yes | Yes | Antenna building / troubleshooting | Current price → |
Where does an SWR meter go?
An SWR/power meter goes in the RF feedline. It does not go in the radio’s DC power cable.
Connect the radio/transmitter side to the meter’s transmitter input and the antenna system to its antenna output. Use a short, good-quality 50-ohm coax jumper between the radio and meter.
An antenna analyzer is different:
Disconnect the transmitter when using a normal antenna analyzer. The analyzer generates its own low-level test signal; it is not a transmitter power meter.
Our SWR meter and analyzer picks in detail
1. Daiwa CN-501H2
The CN-501H2 is the meter I would choose for a traditional HF-oriented station when the job is straightforward: transmit through the meter and see forward power, reflected power and SWR at the same time.
Its 1.8–150 MHz coverage takes you through the amateur HF bands, 6 meters and 2 meters. The 20, 200 and 2000 W ranges also give it much more headroom than a small CB-oriented 100 W meter. That makes it useful with everything from an ordinary 100 W HF transceiver to higher-power equipment, provided you remain within the meter’s published limits.
I particularly like the cross-needle format for this job because you do not have to repeatedly switch between forward and reflected calibration just to get an SWR reading. The two needles show forward and reflected power and their crossing point gives SWR.
The limitation is frequency, not price or prestige. Its calibrated range ends at 150 MHz. If you operate 70 cm, do not assume that because the connectors fit, the meter is suitable. Buy the VHF/UHF model instead.
Best for: HF operators and stations that also need 6 m and 2 m measurement.
Skip it if: 70 cm is one of the bands you need to test.
2. Daiwa CN-501V
The CN-501V is not an upgrade from the H2. It is the correct version when the frequency has changed. Its 140–525 MHz measurement range covers both the 2 m and 70 cm amateur bands, which makes it the more useful meter for a dual-band mobile installation or a VHF/UHF base antenna.
The 20 W and 200 W ranges suit the radios this page is likely to be used with: handhelds at the low end and common 25–55 W mobile transceivers. Like the H2, the cross-needle display lets you see forward power, reflected power and SWR together.
This matters after installing the kind of mobile radios covered in our mobile ham radio guide . A radio may be perfectly healthy while an antenna mount, connector, feedline or antenna adjustment produces a poor match.
Its limitation is equally simple: the lower edge is 140 MHz, so this is not an HF meter. Owning both HF and 70 cm equipment does not magically make either CN-501 model universal. Match the meter to the bands you actually need to measure.
Best for: 2 m / 70 cm mobile and base installations.
Skip it if: the station you actually need to measure is HF.
3. RigExpert AA-650 ZOOM
The AA-650 ZOOM is what I would buy when “Is the SWR okay at this one frequency?” is no longer enough. It covers 100 kHz through 650 MHz, so one analyzer can follow you from HF antenna projects through 2 m and 70 cm.
The major advantage is sweeping. Instead of transmitting at one frequency, changing frequency, transmitting again and writing the readings down, you can display an SWR curve across the band and see where the antenna’s best match actually falls. Resistance and reactance measurements then tell you much more about why the system behaves as it does.
The cable tools are another reason to buy an analyzer rather than another inline meter. The AA-650 can measure cable loss and velocity factor, and its Time Domain Reflectometer mode can help locate a fault in a feedline. That is valuable when the real problem is a damaged cable or connector rather than the antenna itself.
The limitation is that this is test equipment, not a transmitter wattmeter. It generates a very low-level test signal of its own. Do not buy it expecting to leave it inline and read your radio’s 100 W output.
Best for: building, tuning and troubleshooting antennas and feedlines across HF, VHF and UHF.
Skip it if: all you want is a quick live SWR/power check on one existing station.
Need better SSB peak-power measurement? Consider the Daiwa CN-901HP.
There is one reason I would step above the CN-501H2 for a serious HF bench: SSB peak-envelope-power measurement.
The CN-901HP covers 1.8–200 MHz, uses 20 / 200 / 2000 W ranges and adds a P.E.P. peak-reading circuit. That makes it more useful when you specifically want to examine SSB peak output rather than primarily checking antenna SWR and average carrier power.
It still does not solve the 70 cm problem — its upper limit is 200 MHz. So this is a special HF/6 m/2 m bench choice, not a universal meter.
Check Current Price on Amazon → Amazon affiliate linkLow SWR and antenna resonance are not the same thing
This distinction is one of the best reasons to own an analyzer. An SWR meter tells you how closely the impedance presented to the feedline matches the line’s characteristic impedance.
An antenna is resonant when its reactive component is zero. A resonant antenna can still have an impedance other than 50 ohms and therefore show SWR above 1:1. Likewise, a matching network can make the radio see 1:1 without making the antenna itself resonant.
An analyzer that displays resistance (R) and reactance (X) gives you the information needed to understand the difference instead of chasing the lowest SWR number blindly.
How to choose an SWR meter or antenna analyzer
1. Decide whether you need a meter or an analyzer
Buy an inline SWR/power meter when the main questions are: “What power is my transmitter producing?” and “What SWR does the radio see while I transmit?” It is simple, quick and useful for confirming a completed installation.
Buy an antenna analyzer when the questions become: “Where is this antenna actually resonant?”, “Is it too long or too short?”, “What are R and X?”, “How lossy is this coax?” or “Where is the feedline fault?” Those are different jobs.
2. Frequency coverage is non-negotiable
A meter is not suitable merely because you can physically connect it. Its calibrated frequency range must include the band you are measuring.
3. Power range matters too
The meter must safely handle the transmitter’s output, but maximum power is not the only consideration. You also want a useful scale at the power you normally run.
A 5 W handheld is easier to read accurately on a low-power range than on a meter whose only scale extends to a kilowatt. Conversely, never exceed the meter’s stated power capability simply because the connector fits.
4. Measure near the antenna when troubleshooting the antenna
A meter in the shack tells you what the radio sees after the feedline has been added to the system. That is useful, but it is not always the same as the condition at the antenna feed point.
If you are diagnosing the antenna itself, moving the measurement closer to the feed point — or using an analyzer intelligently with known feedline characteristics — gives you a clearer picture.
5. Long lossy coax can make bad SWR look better
This is counterintuitive. Forward RF loses some energy travelling through the coax. Reflected RF loses more energy travelling back. By the time that reflected power reaches the meter in the shack, there is less of it left to measure.
The result can be a lower-looking SWR at the radio end even though the antenna match has not improved at all. This is why our coax and connector guide treats feedline loss as part of the antenna system rather than an afterthought.
6. Do not obsess over achieving exactly 1.00:1
A perfect 1:1 reading can be satisfying, but it is not a competition. What matters is that the antenna system provides an acceptable match over the frequencies you intend to use and that your transmitter can operate safely into it.
Many practical antennas are tuned around a low point in the desired band and rise toward the band edges. Follow the radio manufacturer’s SWR limits rather than chasing an arbitrary internet rule.
7. An antenna tuner changes what the radio sees
A tuner installed at the transmitter can produce a good match for the transmitter while the feedline between the tuner and antenna still has substantial SWR.
That is why a tuner’s 1:1 display does not prove that the antenna itself is resonant or that coax losses are low. See our antenna tuner guide for the full explanation.
Do not trust a beautiful shack-end SWR without thinking about coax loss.
Imagine a badly mismatched antenna at the far end of a very lossy feedline. A large reflected wave leaves the antenna, but the cable attenuates it as it travels back toward the station.
Your meter therefore sees less reflected power and may report a much friendlier SWR than exists at the antenna. The station did not become efficient — some of the evidence was simply turned into heat in the cable.
If a long VHF/UHF run shows surprisingly good SWR but performance is poor, inspect the feedline and connectors instead of declaring the antenna perfect.
What to avoid
Do not buy an “SWR meter” without checking both frequency and power range.
A cheap CB meter designed around 27 MHz is not automatically a useful 70 cm meter. Likewise, an HF meter that stops around 150 or 200 MHz cannot be assumed accurate at 440 MHz.
Do not leave an antenna analyzer connected when transmitting into that line, and do not use a tuner simply to make a bad antenna disappear from the radio’s point of view.
Finally, do not interpret low SWR as proof that the whole antenna system is efficient. A dummy load has excellent SWR and makes a terrible antenna.
What to check next
Coax & connectors
If the meter gives confusing results, the feedline and connectors may be part of the problem.
Coax and connector guide →Your first HF antenna
Learn how to choose and tune a dipole, vertical or end-fed antenna before chasing SWR.
Choose your first HF antenna →VHF/UHF base antenna
Height, mounting and feedline often matter more than another few dB printed on the antenna box.
VHF/UHF base antennas →Handheld antenna
If you’re testing an HT setup, make sure the antenna and connector actually match the radio.
Handheld antenna upgrades →Antenna tuner
Understand why a tuner can show the transmitter 1:1 without fixing the antenna or feedline.
Antenna tuner guide →Grounding & lightning
A permanent outdoor antenna installation also needs a proper entrance, bonding and protection plan.
Grounding & lightning protection →SWR meter and antenna analyzer FAQ
What is the difference between an SWR meter and an antenna analyzer?
An inline SWR meter measures the antenna system while your radio is transmitting and can usually show forward/reflected power as well. An analyzer generates its own low-level test signal and can sweep frequencies, display impedance information and diagnose the antenna without transmitting from your radio.
What is a good SWR for ham radio?
Lower is generally better, but exactly 1:1 is not necessary for a useful antenna. A well-tuned antenna may be near 1.5:1 around its intended operating area and rise toward the edges. Follow your transmitter manufacturer’s specified operating limits rather than treating one universal number as mandatory.
Where do I connect an SWR meter?
Put it in the RF coax path between the transceiver and antenna: radio → short coax jumper → meter → antenna feedline. It does not connect in the radio’s DC power wiring.
Can I leave an SWR meter connected all the time?
A properly rated inline meter can be left in the feedline if its manufacturer allows normal through operation and the meter covers your frequency and power. For a permanent setup, keep the number of connectors and jumpers reasonable because every extra connection is another possible failure point.
Can an antenna analyzer measure my transmitter’s output power?
Not a normal analyzer such as the AA-650 ZOOM. It generates a small signal of its own to characterize antennas and feedlines. Use a properly rated inline RF power/SWR meter or wattmeter to measure transmitter output.
Why is my SWR lower in the shack than at the antenna?
Feedline loss can reduce the reflected signal before it returns to the shack, making the transmitter-end SWR look better. A lower reading caused by cable loss is not an improvement in antenna efficiency.
Do I need an external meter if my radio has a built-in SWR meter?
Not necessarily for routine operation. A built-in indicator may be enough to warn you that the station has developed a problem. An external meter becomes more useful for accurate installation work, while an analyzer is the better tool when you need to understand frequency response, impedance or feedline faults.
Useful SWR and antenna-analysis resources
- ARRL — Analyzing Your Antenna System — a useful introduction to what an antenna analyzer tells you.
- ARRL — Transmission Lines — deeper material on SWR, reflections and feedline loss.
- ARRL — Feed Lines — why coax loss and operating frequency matter to the final station.
- Daiwa — SWR & Power Meter Specifications — current specifications for the CN-501 and CN-901 families.
- RigExpert AA-650 ZOOM Specifications — measurement modes, frequency range and cable-analysis capabilities.
Licence note: An antenna analyzer can test an antenna without transmitting an amateur signal. Using a transmitter for on-air SWR measurements requires the appropriate licence and operation within your privileges. Wholly Outdoor is not affiliated with the FCC, NCVEC, ARRL, Daiwa or RigExpert.