Re: Spurious RF at beginning of transmission
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Just to report back, changing C124, originally a 47 uF cap, to 4.7 uF, reduces the duration of the TX burst on PTT from 50 mS, to less than 25 mS.? In fact, it is now so short, that it has essentially zero impact on any CW speed -- in other words, the burst is covered up by the first dot or dash that is sent.
Real easy fix to swap that out before the board is installed in the case, as it is a thru-hole component.? My thanks to Willy, W1LY, for making this mod on his Bitx40.
73, Bob, WB4SON
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Bob