Hello group, I've found minimal information on whether or not the K3/0 actively handles audio from the front 8 pin microphone jack before exiting the rear 1/8" connector feeding the mic input on the RRC Control unit. I can change settings for the K3/0 such as Bias, FP-H/L etc., when disconnected from the network but don't think the changes actually do anything. Is the front 8 pin mic connector hard wired "DC connected" to the rear 1/8" connector and simply a pass through? I know that when connected through to the remote K3 the settings are normally to the K3. I wasted several hours trying to eliminate some "buzz" audio noise when connecting my Heil headset through the 8 pin connector on the K3/0. I finally made up a connector to go from the Heil directly into the RRC control unit. The noise then was gone! So noise is being picked up inside the K3/0, a ground loop possibly? The noise is not 60 Hz, but varies in frequency with the Advances settings in Microbit for the Remote rig.
Ideally some minimal settings could be configurable from the K3/0 such as Bias ON or OFF for the local 8 pin mic input. But if the wiring is hardwired and simply pass thru where is the buzz coming from? Documentation and an internal schematic would greatly help! 73, John W1AN -- View this message in context: http://elecraft.365791.n2.nabble.com/Is-K3-0-Audio-pass-through-or-processed-in-K3-0-tp7613427.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
