[Elecraft] K3 KEY OUT, hi or low on TX?

donovanf at starpower.net donovanf at starpower.net
Fri Jan 4 16:00:12 EST 2019


Hi Jamie, 


Neither... 


KEY OUT is connected to an IRF630 power MOSFET which has 
"on/off" states, not "HI/LO" states. 


During receive its in the off state, sinking less than 50 microamps 
from the load connected to KEY OUT. 


During transmit its capable of sinking ("grounding") up to 200 volts 
at up to 5 amps continuous from the load connected to KEY OUT. 


73 
Frank 
W3LPL 





----- Original Message -----

From: "Jamie WW3S" <ww3s at zoominternet.net> 
To: elecraft at mailman.qth.net 
Sent: Friday, January 4, 2019 8:45:22 PM 
Subject: [Elecraft] K3 KEY OUT, hi or low on TX? 

Does the KEY OUT jack go HI or LO during transmit? 
______________________________________________________________ 
Elecraft mailing list 
Home: http://mailman.qth.net/mailman/listinfo/elecraft 
Help: http://mailman.qth.net/mmfaq.htm 
Post: mailto:Elecraft at mailman.qth.net 

This list hosted by: http://www.qsl.net 
Please help support this email list: http://www.qsl.net/donate.html 
Message delivered to donovanf at starpower.net 



More information about the Elecraft mailing list