[Elecraft] Tuner Options

John Chance-Read johnchanceread at yahoo.co.uk
Mon Feb 20 06:04:51 EST 2012


I have the K2 ATU fitted.  At the time I suffered from a lot of unwanted output signal. As a result the ATU jitters about before findin the tune spot. I bought an Orion and its ATU which had similar problems as above. I moved the shack so that the end of the dipole points directly to it.  I also had a MFJ 929C it was a bit of a pain to tune but it did work.  I now have a MFJ 933B and I think it is a great. 
The 933B tunes all freq on my 70 degree 80m Off Centre dipole using a 9:1 balun (except 160m of course). The balun present a broad 3:1 vswr from 80 - 10m with most Ham bands down to 1.5 : 1.    It remembers previous tuning but does need the odd operation of the Tune button occaisonally to improve down to 1 : 1.    It doesn't like slow CW at the higher power level (300w) though.
I would recommend it against the alternatives Auto ATU at that price level.
John G4BOU


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