[RTTY] Help with keeping RF out of PC

[Jerry Flanders]

I would first see if it ACTUALLY is due to RF - turn off the power to the 
radio and run a (simulated transmission) test to see if it still locks up.

If it is due to RF, moving those cables around could have been the culprit 
- you might have disturbed a ground connection.

Jerry W4UK

At 17:15 1/10/05, Peter Laws wrote:
>I had a little, um, "incident" a while back (T-day weekend) which caused
>me to have to replace the Athlon/Abit KT7A combo with a Duron/Soyo Dragon
>somethingorother.  Everything works, but now the MMTTY engine (under N1MM
>Logger) will stop decoding and lockup.
>
>I sent the MMTTY error message to the MMTTY list but since it only seems
>to occur on transmit, the conclusion seems to be that RF is getting into
>the PC.
>
>My thinking is that it's the soundcard itself, since 1) I can still
>transmit after MMTTY goes QRT (IC746PRO in FSK via RB+) and 2) when I
>re-init the digital interface window in N1MM Logger MMTTY sometimes can't
>open the soundcard (per the dialog that pops up).
>
>It should be mentioned that I rerouted and generally tidied up cabling
>behind the desk in the radio room at the same time I was doing the
>rebuild, so it's entirely possible that this is part of my problem.
>
>So, what I need is a primer on keeping RF out of the PC.  Pointers?
>Ideas?
>
>
>
>--
>73,
>Peter Laws
>N5UWY/9
>ARRL VE