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Reviews For: Comet CAA-500 Mark II

Category: Antenna Analyzers

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Review Summary For : Comet CAA-500 Mark II
Reviews: 38MSRP: 449.00
The Comet CAA-500 Mark II antenna analyzer is a professional class instrument for measuring SWR, resonance and impedance. It features a highly sensitive, high precision Yokogawa meter for measurement accuracy in seven ranges covering 1.8 to 500 MHz. Impedance is 12.5 to 300 Ohms. VSWR 1:1 to infinity. Digital readout accurate to 1 kHz.

Product is in production
More Info: http://
# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
K3USS Rating: 2023-02-01
Worth the money Time Owned: 0 to 3 months.
I sold my Rigexpert Pro because I was tired of all the required button pushing and scrolling and the tiny little screen. This one is a dream to use, nice easy to see meter, i'm a sucker for meters. Select the band, dial the frequency read the SWR and resistance. Another one I'd go for is one of the MFJ's.
N4MJG Rating: 2022-10-14
Great Antenna Analzers for money Time Owned: more than 12 months.
atfer i sold my mfj antenna analyzer , I brought me the 500 mark 2 for best money
does work great i test my antenna it work as should no other analyzer work as good as this 500 mark 2.

SKCC 7305 SINCE 2005
NAQCC 5233
OMISS 11548
NT9E Rating: 2022-09-12
Comet CAA-500 Mark II Time Owned: more than 12 months.
It works great for most Antenna Analyzer duties except it does not include a TDR function like my previous MFJ-469 Analyzer. I bought the case for mine.
ZL1BJQ Rating: 2022-08-08
Well made, fully functional. Time Owned: 0 to 3 months.
Minor niggles really. Let's hope the mk3 will add
1. Add a little friction on the Freq knob and reduce tuning rate a little so last digit resolution is possible.
2. Use countersunk screws for battery cover or put rubber feet on the base to clear the screws and protect any surface it stands on.
3. The trickle charger is a nice touch along with good battery life. The socket for a DC supply could be a more universal choice especially if a DC supply is not to be included. The cable/plug that is supplied has be attached to your own wall wart.(Center +ve)
Apart from that the unit is superb, it is not cheap!
W9ZX Rating: 2021-10-16
outstanding quality Time Owned: 6 to 12 months.
There's no sense in me repeating all the same glowing comments about this analyzer. You can instantly tell by the hefty feel of this instrument that it isn't made by MFJ. I have owned one of their analyzers for years and this one is professional grade compared to the MFJ. My Comet works perfectly and I would recommend it to anyone who wants top quality.
AE5GG Rating: 2021-07-18
Absolutely Awesome Product Time Owned: 3 to 6 months.
I own other manufacturers SWR analyzers and this one blows them out of the water. It's SO darn helpful to visually see where your lowest SWR is across the band on an antenna.

I share the concern about the screws on the back of the unit marking up tables. Thank God I read those comments. I purchased the handy carrying case which resolves that issue.

I cannot describe what an in credibly useful tool this is for any ham. I am using the rechargeable batteries. So far I have used it for hours and they are only slightly down.

The only improvement I would have preferred is for a plug in recharging cable vs. the bare wire gadget they give you in order to recharge/power the unit.

Outside of that it's absolutely excellent and I very highly recommend it!
N1FDX Rating: 2021-07-09
Awesome Time Owned: 6 to 12 months.
Got this meter in fall of 2020, what a great tool for setting up antennas, accurate and easy to use. Had a few MFJ units in the past, they worked but not nearly as easy as the Comet. The cross needle meter and the display give
you all the info you need quickly. The MFJ had other functions which the Comet does not but those functions I
never really used.(have a separate frequency counter for one which is more accurate than the MFJ)
A bit more pricy that MFJ but well worth he investment.
Put a set of good AA batteries in when I got it, used it many times and they're still going strong.
A quality instrument !!
K0ZN Rating: 2021-05-13
High Quality with a few warts....... Time Owned: 0 to 3 months.
Clearly a well made and accurate for amateur radio purposes instrument. It gives confidence in the readings. Feels very solid mechanically. Electronically, it is excellent, but there are several "functional" short comings as noted in previous reviews:
(1.) Battery cover screws on the back WILL scratch whatever the unit is laying it a table or the cabinet of your rig! I put some rubber "feet" with adhesive to protect the surface it is laying on. (2.) Battery situation is a little awkward. At this price, it should come with a charger/power supply. (3.) Not showing the sign ( C or L) of the reactive component is, at times, a little frustrating, depending upon what you are doing. (4.) The operating instructions could be a little more detailed/clearer. Operationally it is a very good unit: meters are precision and the little screen displays a lot of handy info. The unit feels very solid. I am not "disappointed" with it, but I can't give it 5 stars due to the shortcomings.
K4IIE Rating: 2021-01-13
Great meter Time Owned: 3 to 6 months.
Love this meter!Easy to use.Had a problem with 2 local AM stations overloading it and found that using a BCI filter between the antenna and meter corrected the problem.Mick was a great help figuring out the problem.Built like a tank and will probably outlive me.
WA3GLL Rating: 2021-01-13
They need an A/C adapter for this unit Time Owned: 0 to 3 months.
I just received this unit, and it seems like it's really well made. I also ordered two sets of NiMH batteries to use with this unit, and they haven't arrived yet, so I haven't had a chance to use this unit. What I didn't like, was when I opened the box, I thought that there would be an A/C adapter that I could use to charge the batteries, but all that was included, was a cable to connect to a power supply. I called Comet and asked if they offered an optional adapter that could be used to charge the rechargeable batteries, since the unit has a built in trickle charger. They said, no, they didn't offer an adapter. I asked them how I was supposed to charge the rechargeable batteries, and they said to use a power supply. I said that I don't want to have to drag one of the power supplies that I use for my radios around with me, so what else can I do? They said to just use one of the wall warts that you already have around your house to charge the batteries. I said that, I have six wall warts, and none of the connectors at the end of the wall warts fits the connection on the unit, so what am I supposed to do, cut off the connector on the wall wart and attach the cable that came with the unit? Before I could finish my sentence, they hung up on me. To pay $400 for this unit, and have no way to recharge the batteries, other than disconnecting one of my power supplies that power my radios, is ridiculous! I bought this unit to use, not only at my home, but to lend out to other members of my radio club, but I'm not about to lend the unit out to someone, and also have to lend them my radio's power supply. This is why I checked, "Needs Help" in the rating, I mean, they can't offer an optional A/C adapter to use with this unit?