[Elecraft] Low Power RTTY Output

[Monty Shultes]

Your conclusions are right-on.  Because so many more of us use soundcards 
than DXP38s (which were designed to plug into mic jacks) I hope there will 
be no firmware change forthcoming.  Two different source levels, 2 different 
inputs. You have 2 mic jacks so you can have your mic on one and the DXP38 
on the other.

73 - Monty  K2DLJ

Apparently the K3 Line In is designed to support sound card digital inputs,
so if you're using an external box for AFSK RTTY, you may have to use the
rear mic input to get full RF power output. I didn't try the front mic
input, but presumably it would be the same as the rear mic input.

I reported the low power problem using Line In for RTTY to Wayne a couple of
weeks ago, but I didn't get a response. I'm curious about why there is such
a difference between the maximum achievable RF output on RTTY when using the
line input (max line gain of 60 for 20 watts RF and no ALC indication) vs.
the rear mic input (mic gain at 15 for 100 watts RF and 6 bars of ALC). The
output level from the DXP38 is the same to both ports, so obviously, the K3
Line In has a much lower maximum level than the Mic In. Is this something
that can be addressed in a software upgrade?

Nelson, KU0A

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