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

The ohm meter needle gets stuck at 40 ohms Only used twice and has never been dropped Can still see the ohm age on the digital display. Sent in for warrantee and the mfg. said it was dropped. Too fragile to use I would not recommend

Well built, easy to read screen and meters.

Its great for testing to see if that old length of coax is still good, and it makes tuning antennas easy.

This did the need job of checking cables and antennas. Easy to use.;

Purchased this to replace a defunct MFJ UHF unit. This makes the MFJ look and feel like a toy. Much easier to use and built like a brick. Typical High Quality Japan construction. The MFJ gave good service, but there is no comparison in build quality. The graphing is nice, if a little small. Only gripe is I wish I could download the graphs. Comes with a charging cable if you use NiMh but you have to supply the Power source. Not an issue for me. There is an SO-239 for use up to 300 MHz, and an N connector for 300 to 500 MHz. I always carry adaptors for both connectors as you never know what you will find in a remote location. I just leave them threaded on the unit.

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.

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.

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

This new antenna analyzer by Comet is great. It is very solidly constructed. I love the combination of analog needles and the digital lcd display. The ham radio presets are perfect. I recently installed several new ham radio antennas and used this meter to adjust and test each one before connecting to my radios. The band sweep function is great as you put the indicator on the ham band you will be testing. Then press the band sweep button and a swr curve is displayed on the lcd screen across the entire frequency range being tested. This unit will also graph and overlap up to 5 readings, perfect for making antenna adjustments and seeing how the changes have affected the swr. I highly recommend purchasing the optional soft case as this is a very high precision testing instrument that you will want to protect. It also runs on either 6 alkaline or rechargeable AA batteries and includes a built in battery charger. An optional ac-dc adapter is required and can be used to power the unit or recharge the batteries. The one thing to keep in mind with this analyzer is that it does not compensate for coax cable connected to the antenna. You will need to use a very short piece of coax cable while testing but this is not a great problem. As a ham radio operator, I highly recommend this antenna analyzer for any shack since it is both a precision and cost effective solution for testing and tuning your antennas!

I have used this device on many HF, VHF and UHF antennas and it has been very helpful. Based on this I should give it 5-stars. However, I gave it 4-stars as for the price I should be able to save the information to a computer. I know that other devices offer this but the advantage of this CAA-500 MK-II is that it spans from 1.8 MHz all the way to 500 MHz. Most of the others require you to either have multiple devices, or much higher priced single units to cover this entire range. Some of the others that cover a similar frequency range do not have graphic displays. I am a firm believer in visual feedback and a graph is much more informative than just measurements. Granted, the numbers are needed for engineering work but the graph is much more useful when you are adjusting and tweaking antennas. Likes: - The meter w/dual needles (easy and simple) - The multi function color LCD screen - The ease of use Possible Improvements: - Adding the ability to save the information so it can be displayed on a computer so the data can be further analyzed and stored - Replace the dual meter with an equivalent digital display. The needles are more fragile and they can cause some occasional issues if the screen gets excess static. Especially in dry environments. You need to wait till the charge dissipates from the meters plastic face plate.