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Gerard,

On your "tandem match" your single turn (through wires) are the larger wire.? I put the large magnet wire through a piece of insulation from a 14 ga wire to make this.? On the smaller wire if you don't modify the PIC programming it should be 10 turns.? If you want to optimize for QRP them wind with 5 turns and then there are a few things that need to be changed in the PIC firmware.? I have re-wound my transformer with 5 turns ant the PIC programmer should be here next week.? Without making the programming changes the power reads way high.

73,

Justin B.
KI5GKD

Well, that didn't work the way I thought it would!

My PICKit 3 programmer should be here Saturday so I'll let you know how it goes, if I don't brick it!

My PICKit 3 got here a day early so I proceeded to rip into my UBITX and tweak the tuner programming.? The video??nails the process and I had no problems modifying the max power, n-turns, and min power.? Although I had rewound my binocular transformer with 5 turns after changing this value in the PIC the wattage read much lower than it should.? I changed the n-turns value to 6 and now the displayed wattage closely matches that of my MFJ Mobile Tuner.? It's nice to be able to hit the key and have it tune!

73,

Justin B.
KI5GKD