[Elecraft] FT8 TX levels = no power

Bob McGraw K4TAX rmcgraw at blomand.net
Tue Jul 16 23:54:29 EDT 2019


What is the Line gain on the radio?


My values:

For transmit:

Computer SPKR level  @ 30 or -18 dB

WSJT-X PWR at mid scale, thus  Transmit Digital Gain is -17.3 dB

K3S Line gain at 25.

For receive:

Microphone (USB Audio CODEC) = @ 27 or -10 dB

K3S   Line Out =  Normal 010


These values above taken directly from the computer, WSJT-X, and K3S.  
This is with WSJT-X version 2.1.0 64 bit running under Windows 10 Pro.  
The computer is a HP EliteBook 6930P with Windows 10 Pro, version 1809 
(OS Build 17763.615).   Processor is P8600 2.40 GHz 2 cores,  RAM 4.0 
GB.  In other words....nothing special in terms of hardware or processing.

If you are running any other interfaces, software, logging applications, 
station control software or hardware interfaces, then all bets are off.  
I just have a single USB cable between the radio and computer.   When I 
use WSJT-X or any other application that is all that is running, other 
than my antivirus and malware applications.    Everything else is shut 
down or exited and closed.

I'm a happy camper and these work 100% reliable for me.  It is simple 
and I like it that way.

73

Bob, K4TAX


On 7/16/2019 10:21 PM, Jim N7US wrote:
> I installed the 64-bit version today.  I had to increase the "Pwr" slider to the max and tweak the Windows audio levels on RX and TX for my K3S.
>
>
> Jim N7US
>



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