ATU-100 HF Auto Tuner 1.8Mhz - 30Mhz (Daz Studio)

I recently purchased an ATU-100 for my Boomerang (A) CB Antenna. I though I would give it a try!The unit was ordered from ###### and it arrived very quickly, thanks!

First impressions were very good, the unit seems to be well made with a very robust case. I soon had power connected (12V) and the antenna coax cable to the radio. For the initial tests I had the Anytone5555 transceiver connected. With the tuner on and in Auto mode a carrier of 5W produced almost instant, and very quiet, tuning on all bands. Initial impressions were great!

The unit I have came with firmware version 3.2, looks like most users are happy with this versions, versions before 3.0 had a few issues. I love the digital readout that gives you power, SWR while tuning and then shows you the inductance (L) and capacitance (C) needed to tune the antenna, impressive!

I opened up the tuner to look at the build quality and components inside, again I was pleasantly surprised, everything seems well made with really good solder joints, unlike some equipment I have seen like MFJ where I normally end up redoing most of the solder joints.

I spent the next few days using it with a few different radios and antennas, the tuning was always quick and produced a very low SWR. The power output, SWR and efficiency display on the little screen is also useful. Overall the tuner works really well!

Specs:Power supply voltage: 10-15VDCMaximum current consumption: 400mAMaximum working power: 100WMaximum possible measured power: 150WMinimum power required to start tuning: 5WMinimum possible measured power: 0.1WMeasurement steps for power 10W: 0.1WMeasurement steps for power 10W: 1WPower measurement accuracy: 10%Maximum installed inductance: 8.53uhMinimum installed inductance step: 0.05uhMaximum installed capacitance: 1869pfMinimum installed capacitance step size: 10PFNumber of panel buttons: power, direct, automatic, functionalDisplay: 0.91 ledColor: blackMaterial: aluminum alloy