[Elecraft] [Elecraft_K3] A Different View--K3 Reduced-bandwidth RTTY Analysis

[Brian Alsop]

Interesting. At at least the transition between the mark and space 
amplitudes are smoothed some.  I wonder how many db in spectrum purity 
that buys. If it buys something, imagine what no transition would buy.

73 de Brian/K3KO



On 3/25/2013 21:11, Hank Garretson wrote:
>
>
> On Mon, Mar 25, 2013 at 8:27 PM, Brian Alsop <alsopb at nc.rr.com
> <mailto:alsopb at nc.rr.com>> wrote:
>
>     I notice that in the narrower signal spectrun the two tone peaks
>     have the same amplitude.
>
>     Many of us have wondered why our watt meters diddled like the RTTY
>     tones.
>
>     Hopefully that is fixed too.
>
>
> Not fixed. See the before and after photos.
> https://picasaweb.google.com/StarrGarretson/2013_03_25_K3_FSK
>
> Which brings up one of my crotchets.
>
> One of the most useful and important station accessories is an
> oscilloscope. Much more useful than one of those multi-hundred dollar
> watt meters--who cares if it is 150 or 153 watts?
>
> An oscilloscope centered before your eyes can instantly tell you a whole
> bunch about your signal.
>
> Is your keying too hard? Are you overmodulating? Are you
> overcompressing? Are your RTTY mark and space different in amplitude? Is
> your amplifier adjusted correctly? Do you have the right antenna for the
> right band selected? Has something gone wrong with your antenna? Do you
> have hum on your signal? Etcetera.
>
> If more hams had a monitor scope, we wouldn't have so many rotten
> signals on the air.
>
> 73,
>
> Hank, W6SX
>
> Mammoth Lakes, California
>
> Elevation 8083 feet in John Muir's Range of Light
>
> No virus found in this message.
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>



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