Matt Patterson wrote:
Wondering if others are using their K2 on PSK31 and RTTY? I made my
first PSK31 contact on the K2 last night and the guy said I had a nice
clean signal but I'm curious what settings on the K2 everyone else uses
when running these modes. I'm afraid I may have my RF gain set to high
on the rig or my audio out set to high on the PC. On my TS-2000 you
would increase the volume until the ALC meter just barely started
registering then you knew you were good to go. Is there something
similar I can do on the K2?
I began using my K2/100 for RTTY contesting some time ago, and it is
awesome! There is a 4th bank of filter settings for RTTY ... you have
to enable them in the menu. Then, when you cycle through the XFILs, you
get C, L, U, r. I use a 400 Hz setting most, occasionally 200 Hz.
My setup is really minimalist. Writelog+MMTTY. Line Out goes to a mic
connector [tie both hot leads to the mic input pin]. Headphones Out
goes to Line In with an in-line phone jack bridged across for my
headphones. Enable VOX in the menu to key the radio when you send the
AFSK tones.
I set my MARK frequency in MMTTY to 1200 Hz. The standard 2125 Hz way
too high for me to hear. I was limiting the power to about 50W, but I
finally velcro'd a muffin fan to the top of the KPA100 heat sink, and
everything stays cold even at 85W now.
I did finally put a 1:10 divider into the cable to Line In and covered
it with shrink tube since the K2 audio was a little hot for the Windows
Audio Mixer-thingy when I had the AF gain up where I could hear weak
signals, but it all worked without it too, just a little touchy setting
the sound card input level.
I can print signals I can't hear in the phones and can barely discern on
the MMTTY scope display.
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 2008 Cal QSO Party 4-5 Oct 08
- www.cqp.org
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