I use K1EL WINUSB keyer also with SD software. My keyer is a PTT HV
version - so port 2 - can handle 48V PTT. Port one - low voltage PTT only.
There is no problem when keyer works in standalone mode ---> keyer's
output 2 selected; key/cw connected to my RIG (ICOM).. and PTT to my
All is fine until I fire up my SD program - which RESET my WINUSB
keyer's output to port ONE - where PTT is a LOW voltage that cannot
handle my linear's 48V PTT voltage. That means - when I start any CW
from SD - 48v voltage from linear PTT will destroy WINKEY PTT chip (an
low woltage optocoupler similar to 4N25/28).
The question is.. how to set SD program to keep WINKEY USB output port
, or how to tell SD to switch WINKEY's ouput (PTT/CW) to the PORT I want
?? Obviously at this stage I use an external PTT interface using ACC
port from my ICOM..
There is PROBABLY a tricky way to avoid all that trouble - just by
switching optocouplers inside WINKEYER>>> but....that is not a right way
When WINKEYER USB works with SD - keyer can be controlled only from
SD..when standing alone - resets to its own settings...so will keep MY
Any ideas ?? Thanks in advance for any help..
73, de Andrew vk2ar
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