I have made about 9,000 RTTY QSOs with my K2/100.
I use an MFJ -1275 interface. The audio output is fed from the MFJ-1275 into the K2 microphone jack. I use an IBM clone running MS Windows XP with an iMic attached to a serial DB-9 jack RS-232 port. The iMic replaces the sound card. The iMic has audio in and out jacks that are connected to the MFJ-1275 using audio cables. The speaker output jack next to the K2/100 fan is connected to the MFJ-1275. I use a USB adapter to connect my computer to the MFJ-1275 which serves to trigger the PTT. The K2/100 is controlled by the computer through a second USB adapter. It is important to remember that the control cable for the K2/100 is a custon pinout, a standard serial cable will damage the K2 if connected to what looks like standard serial ports. I have tried HRD and it works, but I mostly use Mixw 2.20. I set "rttY On" and use RTTY mode, the small "r" with the bar over the "r". I set the disolay to ALC and try to allow only 1 flickering bar in the display. I set the AGC off and control volume with the RF Gain knob. I use the AFil rather than XFil to avoid the slight frequency shift that occurs when engaging the XFil. AFil and XFil are normally set to 1, but I will narrow down AFil when needed. I keep the fan set on high when operating RTTY, but do not challenge heat control a lot because I mostly operate S&P rather than Run. My antenna is a fan dipole up about 25 feet, so I do not often have the power to operate run and attract much notice. I had to place ferrites on all leads to prevent RFI from impacting my computer. HTH de KB1IKD. ______________________________________________________________ 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
