[Elecraft] Got K2, many questions...

[Steve Kallal]

I just a got second hand K2 today and have some questions. For reference the
SN is 2289 and it has the 2004 mods.
 
1. I need to know about the CAL FIL function. I prefer a CW pitch of 400 Hz.
The previous owner had it set at 600 Hz. The manual states I might want to
use CAL FIL to adjust the BFO settings for a new pitch. The problem I am
having is that I can't get the filters to accept a 400 Hz pitch, even when
ST P is set to 400. The exception is the 1.5 kHz filter. The 700 Hz filter
sort of passes a 400 Hz tone. Since I didn't build the K2, I don't have the
frequency counter test cable mentioned in the CAL FIL section, at least I
don't think I do.
 
2. The K2 has the KAT2 internal ATU. I am getting HI CUR warning on an
antenna that is already matched. The antenna is a ladder line fed delta loop
through an old 275 watt Johnson Matchbox. I know the antenna is matched for
the portion I am using. The coax is connected to the ANTENNA  BNC instead of
ANT1 or ANT2. I tried setting ATU to CALP or CALS. I simply want to bypass
the ATU for home use. But I also want to use the internal SWR function to
manually tune the Johnson Matchbox. I will try the ANT1 or ANT2 BNC
connector. Perhaps that is what I should do. Reading the manual couldn't
hurt either, hi.
 
3. My last question is about the adding KPA100 option. I wish to keep the
KAT2 for portable operation. I know the KAT2 and KPA100 options are not
compatible. Can I switch between them in a short amount of time? I have
heard the top lid can be swapped on the fly to switch between the QRP and
100 watt modes. Is this an easy thing to do? I might want to use the KAT2 in
the field and KPA100 at home.
 
Do I have any takers on these questions?
 
73,
 
Steve N6VL