Don

Thanks for the info...I have set the ALC per the KE7X manual. OK on the clarification...this radio is something I am not used to (starting out with a DX40 and a BC342) but worked my way up to the TS950 when it first came out.

And the TS950 still chugging along after all these years and a trip to Clipperton in 1992. I think the salt air on the island did take its toll on the motors in the antenna tuning unit. I never use it but they scream like crazy if I do push the button by accident :)

There are a lot of things to be set and Appendix C in the KE7X manual is something I have to go thru to get all 6 radios ready.

Thanks for the info
Jay
----- Original Message ----- From: "Don Wilhelm" <[email protected]>
To: "Jay" <[email protected]>
Cc: <[email protected]>
Sent: Monday, March 04, 2013 3:41 PM
Subject: Re: [Elecraft] K3 PSK no output


Jay,

The K3 "H" or "L" in the mic select do *not* refer to microphone impedance, but to the range of the K3 microphone gain. The Heil HC4 and HC5 elements (and other low level output microphones) will need the "H" setting. Most other microphones can use the "L" setting.

If your microphone has an H and L switch, that *does* refer to the mic impedance, and it should be set to "L" for use with modern transceivers which use a low impedance microphone.

You said "headset" which tells me you are referring to SSB rather than the Data mode setting question of the original post. For SSB use, adjust the Mic Gain control to give you 5 to 7 bars on the ALC meter.

The K3 "ALC" meter is a combination of a 'VU' meter and an ALC meter. The onset of ALC is indicated by the 5th bar. Those bars below the 5th are an aid in setting the correct audio level (especially useful for Data Modes).

This is all in the manual - refer to the mode you are using - Data or SSB and set up like the manual indicates.

73,
Don W3FPR


On 3/4/2013 5:11 PM, Jay wrote:
Don

As a K3 newbie here, would the mic impedance (H or L) be a possible issue? I could not get any ALC movement until I went to H impedance for the Heil headset I have. I was then able to get all the ALC needed with the mic gain.



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