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Jerry,
There a number different tuners that will work. Using a tuner with a rig such as the IC706MkIIG does not have to be interconnected with control cables. An example is a Yaesu FT-757GX using a Drake MN-4 or MN2000 manual tuner. The only requirement is the coax between the rig and the tuner plus the antenna coax to the output of the tuner. Which one is best? I believe it's the users choice but power must be taken into consideration. You wouldn't want to use a Drake MN-4 tuner (300 watts max) being fed with a KW yet you can use the Drake MN-2000 (2KW max). As for the rigs that have tuner control and an autotuner is available for that rig, IC706MkIIG with it's outboard ICOM AT-180 autotuner, then I would think it's whether the user wanted to spend the money for such a tuner. I have a Yaesu FT-757GX with it's outboard autotuner FC-757AT and that combination works very well as does my FT-767GX/AT. The type of antenna you intend on feeding, longwire, dipole, Zep or yagi should also be considered. Long wire tuners usually contain either a fixed, tapped, inductor or a roller inductor which, in my opinion, gives one a lot more flexibility. The older Johnson KW tuner is an excellent piece of gear provided the user has space for it. Coax tuners are designed for coax fed antennas and do not function well in a "Long wire" configuration. The Drake MN-4 and MN-2000 are examples of coax fed antenna tuners. The Johnson KW is an example of a "Long wire" fed antenna tuner. If one is a builder then the parts needed to build a "Long wire" tuner or "Coax Fed" tuner are plentiful and "Fair Radio Sales" in "Lima Ohio" is a good start for parts. Ebay has Johnson roller inductors, small and large, at times and the prices I've seen aren't that bad considering the cost of "New" from the manufacture. I built a tuner out of 2 variable caps and a roller inductor on a piece of wood and it tuned anything from a bedspring to a 200 foot long wire but it was "Breadboard" and unsafe. There are numerous brand name tuners available at as little at $100 yet the autotuners are somewhat higher in price. When considering a tuner addition to your shack, consider what type of antenna you will be feeding. As for it's looks, well all I can say is "It doesn't matter as long as it does the job it's intended for and it's "SAFE" to use. You might not want to "Breadboard" a full time tuner unless it's located where you or other can come in contact with the tuners components. Hope this helps. By the way, the Drake MN-4 does an excellent job on yagis and dipoles if the antennas is slightly out of resonant but the power limitation is 300 watts maximum. The Drake MN-2000, although considered the "Big Brother" to the MN-4, will do the same and the power handling is rated at 2KW and both have a built in SWR meter with switchable antennas, i.e. feeds 2 antennas 80 to 10mtrs with a "Straight through" position which takes the tuner out of line and feeds the transmitter/transceiver directly to the antenna. Good for checking out other bands without disturbing your tuner settings. Good luck and 73's, Michael DA1TNJ / WB8TNJ "Jerry Oxendine" wrote in message news ![]() I have an IC735 that I use on Amateur and some other bands (licensed). Which "tuner" will cover all HF bands? How about my IC706 MkIIG? Which one works on all bands for that radio as well? Tnx es 73, Jerry K4KWH |
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