Comet Original CAA-500 Mark II Standing Wave Analyzer 1.8-500MHz SWR & Impedance Simultaneously

Works great for designing and building your own antennas. Tells you what youre doing right and what youre doing wrong, in real time. It can pay for itself many times over if you use it to build and tune antennas to sell. The only con is that it doesnt come with a nice protective case.

Well worth the money. It came damaged in shipping and return and replacement was easy/Peazy. Thanks Amazon

It works like a charm. It is easy to use accurate and simple. I love it for tuning my multi-element antenna and checking it regularly.

Did not come with batteries, and the charging wire needs some supply voltage. The should have at least included a proper charger. Otherwise, so far it seems to work well. I can test antennas to see if we have a problem there or somewhere else.

seemed well made , good value .

No doubt on Japanese quality. This thing is extremely easy to use.

Easy to use. I think I read the manual first, but there was really no need. Its 95% intuitive for a ham whos experienced with HF. Id give it 5 stars, but Im dinging it 1 star for: 1. not including a case of any kind (got a nice hard-sided one for $25, see below) 2. the fact it should have a rechargeable LiPo battery included 3. that it doesnt have a USB port for exporting data to a computer for sharing with the world 4. that the 300-500 Mhz range is routed to an N style connector. I understand theyre less lossy at UHF, but practically how many of us use them? At least include an N to SO-239 adapter (which I ended up buying) This is probably the top of the line manual analyzer out there. If youre the sort of ham who thinks he knows better than a computer, this ones for you. You create the graphs either by auto sweeping a range or manually doing so. If you want to record the readings, youll have to do something like what I do: snap a photo of the display with my phone. Not elegant, but it works. Im sure there the Mark III will be out next year with a USB port. After using MFJ units, this is a definite step-up. It seems like a pro-grade item. I found the perfect hard case on Amazon. Only $25 and made in USA. Search for Seahorse 230 Medium Tactical Case with Foam, Black. It has room for the Comet, manual, and several adapters.

Exactly what I needed!

Great product. I analyzed an OCF wire that is designed to operate on all bands from 80 through 6 meters, and I can see exactly where resonance occurs and both the resistive and reactive components of impedance. The only negative is the screw heads that protrude on the back side of the box. This could be corrected easily and to me suggests an attitude of indifference to the concerns of customers.

Excellent construction typical Japanese good quality and good materials... good looks and fine finish... easy single knob band selection and easy to read multi function color screen and simultaneous SWR and ohms cross middle gauge.. Unfortunately this unit Don’t do coaxial cable testing.. I wish Comet include cable testing functionality in future models.