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

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!

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.

The Comet CAA-500M 2 .Works great showed me the problems that I had. Now I know what needs to be fixed. Larry KD8ULC

I needed to tweak three VHF/UHF antennas (LPDA beam, dis-cone & 50 MHz loop). This device makes it very simple to sweep the antennas. The dis-cone covered 50-500+ MHz and the Comet made it a snap to check it out. Recommended.

My concern was being able to see the display in bright sun light. No problem and having the analog meter is a great help. Highly recommend.

It works fine below 300 mhz. The UHF side does give an accurate SWR reading. But the OHMS are always off. I fought with an antenna for over an hour, only to find out it was the meter itself. We hooked it up to a 50 OHM dummy load. It tested out at 1:1 SWR at 50 OHMS on two GOOD analyzers. The Comet read just below 25 OHMS across the entire 70 cm ham radio band. Apparently Comet doesnt have quality control!

Ive likely tuned hundreds of antennas SWR over my year using the old method of checking each end of a band and adjusting a bit to center the dip. I looked long and hard at the cheap $30 and $40 meters and Ive had so much bad luck with them I thought about getting something better ... and ended up getting WAY BETTER! The meter is so simple to use. You select the correct output 2M and above or 2M and below and connect the antenna up to the meter. Twist one knob to select the band and the other to pick the frequency inside that band and the cross needles indicate the SWR and the impedance of the antenna. Press a button and the meter will sweep the band displaying the slope on the small color screen. With HF bands this is very handy to see just what the SWR is across a wide number of frequencies. Tuning dual and tri-band VHF/UHF antennas on my Jeep was simple. The only thing missing is a USB port to off load screen captures of the SWR plots.

My meter arrived in perfect shape. It is a pleasure to use in info provided on the LCD. The case is made of very high quality metal. Easy to use and read. Made in Japan.