PK232
From: WB2ZTK@WB2ZTK
To: ALL@ALLBBS

Hello Out there....

I've just completed my work on the PK 232.  I mention earlier in the week
of a problem with the PK 232 regarding RFI and how the 13 volt supply line is
unprotected from accidentally placing voltages above 13.6 into that box.
This 13.6 v line is connected to a couple of IC and branch to many transistors
and is use as a pull up voltage for many circuits within the box.  

Well now that the highly stable voltage regulator in in place along with
a RF choke of 20 uH.  I can easly hear some of our checkins during 
the my Faxnet on 28.450.  The RFI from that box was of the low level type and
was knocking out the weak station when the unit was on.  

I am very happy with the addition for two reasons.

1.  It protect the PK 232 from Murphy and I.
2.  It gives my rig isolation from the RF that was leaking down the power 
    supply leads to a common power supply shared with the rigs and other
    devices.
CONTINUED IN FILE PK232.17