Performance of Heathkit SB-610
It is possible that the powder used at 455 kHz is quite lossy at 3.395 MHz.
Usually, a quick and dirty way to tell is if the peak is sharp. The broader
the peak, the lower the Q.
Will try to get my manual out to review it for clues. I suspect your SB-610
sensitivity is below par.
73, Colin K7FM
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