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Show all reviews of the MFJ-971
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of the MFJ-971.
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KC0ZZH
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Rating: 2/5
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Nov 20, 2009 16:01
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Junk for anything higher than QRP!
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Time owned: 3 to 6 months
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I bought my 971 to replace an aging MFJ-941D. I wanted something to use here at the home QTH and out in the field.
I thought since the tuner it's self was small it would further enhance the portability of my new FT-857D. Unfortunately I never had the chance to take it out into the field before I started having problems with the tuner.
Right after putting it on the air into a resonant dipole I noticed from time to time it would arc on higher power. None of the tuners before ever did that and I could find nothing wrong with the feed-line/antenna system that would cause such issues. Opened up the unit to find that issue which some others on here found...bent plates. Spent quite a bit of time with the tuner and managed to get them straightened out. That solved the problems for a bit. About two weeks later it started arcing again and ended up burning through the inductance switch rendering the unit useless to me. I think MFJ's quality control needs to be improved and/or use better quality parts in the construction of their tuners.
I also don't like the fact that there is no coax bypass switch, although it's not a super big deal.
It did do an OK job at loading up on whatever I put it on, but once again I've had better results with other MFJ models.
In closing, I think this unit would be more than adequate for low power work but I can't give it good marks on higher power HF due to the failures that happened while I was operating.
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Product is in production.
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