Im wondering two things: - How much power output was the K3 in question operating PSK at? PSK is really picky about transmit IMD. IMD increases with power output from any rig, K3 being no exeption.
- Did the station that complained about "splatter" have his noise blanker and/or preamp turned on? If so, the problem might be on the receive end of the path. Both issues beg to be investigated. And yes, with direct PSK-D modulation, the soundcard output from the K3 is moot, however, the soundcard input to the complaining station is not moot, in fact, it is critical, as pointed out by K9YC. Levels are.... -lu-w4lt- K3#3192 -------------------- Message: 12 Date: Wed, 30 May 2012 15:17:30 -0400 From: [email protected] Subject: Re: [Elecraft] K3 psk D splater To: <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset=us-ascii; format=flowed Hi Jim Thanks good tips but Keep in mind I am using PSK-D where I am sending serial data to the K3 and letting it do the modulation. so there is no audio path from the PC into the K3. before I had the K3 using the sound card was my only option and even now when using AFSK to the K3 I dont believe I have an issue. It was just when I tried to let the K3 handle the modulation that I got this response and as others have pointed out it is very possible y that there is someting at his end. I was just wondering though if there was someting I can do to controll the IMD at the K3 when using PSK-D as opposed to PSK-A David Moes VE3DVY ______________________________________________________________ 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
