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Categories | Antenna Tuners/Matching Networks | CG-3000 Automatic Antenna Tuner 10 - 200 WATT .PEP Help

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G8JNJ  Rating: 5/5 Feb 23, 2009 03:57  Send this review to a friend!
Does exactly what it says on the box  Time owned: 6 to 12 months
I have been using one of these for over a year to feed a variety of antennas and it has worked flawlessly. In fact I’ve just bought a second one for further experimentation, as it permits very quick setups of new antennas without having to worry about getting the match exactly right.

The unit tunes random length wires or balanced antennas if you add an external choke balun.

One extra bonus is that it will work on 6m (with a reduced matching range). However there is a slight amount of RFI from the internal control board on this band, which is noticeable if the antenna is mounted too close to the ATU. I believe the latest models have additional internal screening which should reduce this to a negligible level.

As with all random wire tuners of this type it is important to avoid wire lengths which are ½ wavelength long (or multiples) on the frequencies of interest, as this results in very high feed impedance and a high voltage at the feed point. Aim for a wire length which presents a moderate impedance load on all the desired frequencies for best results.

Loss through the unit seems to be low when compared against a good quality manual tuner, even when operating on 160m with electrically short (9m long - low R high X) wire antennas.

Highly recommended for use with 100w HF/6m rigs.
Product is in production.
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