[Elecraft] K3: The ARRL RTTY Round UP

Guy Olinger, K2AV olinger at bellsouth.net
Mon Jan 5 19:10:21 EST 2009


From: "Joe Planisky" <jplan at jeffnet.org>

>I agree that finer steps to SHIFT would be nice, but until then,
> wouldn't it be possible to center the audio using RIT?

So far as the audio passband one hears, the RIT is no different than the 
main tuning knob.  If one is mainly hearing 2150 to 2450 with a 300 hz 
filter, and you are trying to receive 2125 and 2295 changing the RIT to get 
those tones will still put the 2100 on the filter skirts.  Only the shift 
will move the heard audio passband down to center around the standard tones.

On a run frequency, one usually locks the TX frequency, and adjusts 
shift/width of passband for the "regular" listening width and centering, 
saving RIT for listening only for temporary excursions to someone who calls 
really high or low.  Contest programs can reset RIT when a QSO is logged. 
They will not change shift. RIT is expected to be temporary per QSO. Shift 
is considered a manual adjustment that the program leaves alone.

73, Guy.




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