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

Hank Garretson w6sx at arrl.net
Mon Mar 25 17:11:31 EDT 2013


On Mon, Mar 25, 2013 at 8:27 PM, Brian Alsop <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


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