I had the same issue too, the carrier was not properly suppressed. My
wattmeter was reading about 200mW with PTT on and no modulation. I found
that the balance potentiometer R105 was not adjusted properly. I could
suppress the carrier much better by fiddling with R105 a bit. But 100%
suppression is not possible, there will always be some residual carrier.
73, Allard PE1NWL
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On Sun, February 26, 2017 21:20, Bill Meara via Groups.Io wrote:
I'm not sure, but my guess is that Ralph is hearing the residual carrier
from the BITX when he keys the PTT and listens on another rig.?? The
carrier is suppressed but it is still there and will be quite noticeable
at close range.?? As for getting CW going with the Raduino, ND6T has an
interesting mod posted on the BTXHACKs blog.???? 73?? Bill
On Sunday, February 26, 2017 2:34 PM, John Smith via Groups.Io
<johnlinux77@...> wrote:
I've been asking about this my self. In the code is function button for
different modes and functions. One is CW mode which requires the external
use of a transistor to hold PTT for a bit while cw code in sent. Then
after a bit it times out, unkeying the PTT.??That's what I understood
from reading the comments in the code. It seems to me if you can put the
sound of your CW tone on a certain frequency by an offset so it can be
heard by another on that frequency and you can hear them, then you are
doing CW.But the others don't think it's that simple. And I haven't tried
it yet. I lost a month of experimentation, and traded it for a month of
troubleshooting and repair, just to play with it now.
Allard PE1NWL