Antenna Analyzers

[BP73]

I'm considering purchasing an antenna analyzer and wondering what your thoughts are regarding the MFJ-259*. What version would be the better choice? I believe the "D" version was last? Since these aren't readily available new any longer, are there any other comparable or better options?

[Bozo]

Hey @BP73
MFJ-259D is the latest and most refined version of the MFJ-259 series, offering improved stability, accuracy, and better filtering over previous models like the 259B and 259C. If you can find a 259D, it would be the best choice among the MFJ-259 series. However, since they are no longer in production, availability may be an issue, and you might need to consider used options.

Alternatives to the MFJ-259D
If you can't find a 259D, here are some comparable or better antenna analyzers to consider:

1. RigExpert AA-35, AA-55, AA-230, AA-600, etc.
Pros:

• Digital display with graphical representation
• More accurate than the MFJ-259 series
• USB connectivity for software integration
• Smaller and lighter than MFJ models

Cons:

• More expensive than MFJ analyzers
• Battery life can be a concern for some users

2. NanoVNA (Various Models)
Pros:

• Extremely affordable (~$60-$150 depending on model)
• Covers a wide frequency range (up to GHz depending on model)
• Works with PC software for deeper analysis

Cons:

• Requires a learning curve
• Small screen and touch interface may not be as convenient in the field

3. Comet CAA-500MarkII
Pros:

• Covers HF through UHF (1.8 MHz to 500 MHz)
• Large, easy-to-read display
• Simple to use with analog-style tuning

Cons:

• More expensive (~$450-$500)
• Not as feature-rich as some digital analyzers

4. Sark 110 Antenna Analyzer
Pros:

• Wide frequency coverage (100 kHz – 230 MHz)
• USB connectivity and PC integration
• Compact size

Cons:

• More expensive than MFJ (~$250-$350)
• Requires software for advanced features

Conclusion

• If you can find a used MFJ-259D in good condition, it’s still a solid choice.
• If you want something more modern and feature-rich, consider the RigExpert AA series.
• If you want an affordable, versatile option, the NanoVNA is worth looking into but requires more setup and knowledge.
• For an analog-style analyzer with a modern touch, the Comet CAA-500MarkII is great but pricey.

If you primarily operate on HF and VHF and want a straightforward SWR analyzer, the MFJ-259D is still a good choice. However, if you're open to digital options with better accuracy and modern features, the RigExpert AA series would be a superior choice overall.

[BP73]

That's a great help! Thanks for the in depth reply!

[MDYoungblood]

It really depends on how deep your pockets are.

I like all that Bozo posted, I would shy away from the MFJ because they have closed their doors, still do some repairs but if no one picks up the business it will soon stop that as well, but if you find one at a good deal, grab it. I have a 259 model on my shelf.

Depending on your experience, novice I would choose the Comet 500 (newest version), it will do everything you want to adjust antennas and check coax. The Rig Expert brand are top of the line but be prepared for the price shock. They are a big deal to a lot of amateur radio operators, the AA-600 would be the one I would buy (if I had that kind of money).

I am currently using 2 different models of the NanoVNA, like said in Bozo's post, they do require a learning curve. They are the least expensive but do have the frequency range I was looking for. If you go with these, get the right connectors or buy one that has them on the case, the pigtails sometimes cause harmonious signals. I bought 2 just to keep a check on readings.

3's

Greg

[De_Wildfire]

I have the Comet CAA-500MarkII. I like it better than my MFJ. It has a big analog meter and also a digital screen for when I want to do SWR sweeps of the band. It is easier to use and reasonable. Ham Radio Out has it marked down to $389.95 from $439.95. The digital sweep feature is a plus compared to my MFJ analyzer. I had it for a few months and no complaints yet.

[Maco 103]

Love mine, makes life easy. Good choice, quality, versatile.

[De_Wildfire]

These modern antenna analyzers take the cake over a regular SWR meter when building antennas but we should always have a good SWR meter in line to monitor the SWR's especially with an amp.