[Elecraft] T1 tuner issue: try shorting the feedline, working against ground

[wayne burdick]

Kurt,

The impedance of your 40 m dipole on 20 m is probably sky-high; 2.5:1 
may be the best you can hope for. This probably won't hurt the rig, and 
the power loss due to the high SWR is probably less than a dB assuming 
the rig doesn't roll back power (or clip the voltage at the collector 
of its PA).

Another thing you can try is to short the coax center connector to its 
shield. This is an old trick for extending the matching range of an 
antenna. Connect this to the T1's hot lead, then connect the T1's 
ground to a ground counterpoise. The impedance will likely be very 
different, giving the ATU a chance to match it. It will be slightly 
noisier than a dipole, and the directivity will change, but you may not 
mind.

73,
Wayne
N6KR


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