I now have my newly assembled KPA100 running in a separate EC2 enclosure
without a KIO2 in the K2. For me it is a temporary solution until I get a
KIO2, but at least the setup described below actually works.
73
Sverre
LA3ZA
http://www.qsl.net/la3za/
-----Original Message-----
From: Sverre Holm [mailto:
[hidden email]]
Sent: 8. desember 2004 12:09
> I am building a KPA100 and intend to remote this into a separate EC2
> enclosure along with the KAT 100 My K2 does not have a K102 control
> board.
> Can I do the remote installation using the K102 on the pa board ? The
> notes I downloaded seemed to suggest that the k102 needs to be in the K2 .
I looked at this also, as I am in the process of building a KPA100 which I
intend to remote. I don't have the KIO2 in my K2.
When the KPA100 is in a separate enclosure, the RS232 interface in the
KPA100 will not work as it doesn't get the data in/out from the K2's
processor. Instead the KIO2 does the translation to RS232. Therefore,
without the KIO2, you can get the KPA100 to work remotely, but you will not
get an RS232 interface.
If all you want is to get the KPA100 to work, you will have to do the
following:
- Install an RS232 connector in the K2/QRP lid
- Connect GND to pin 5
- Connect AUXBUS to pin 6 (KIO2 has 15 uH in series and 0.001 uF to GND)
- Connect VRFDET to pin 7
- Connect 12V to pin 8
- Connect 8R to pin 9 (KIO2 has 3.9k in series)
These connections shall be taken from connector P4 (Aux I/O) on the K2's
control board. Alternatively, if the KAT2 is installed, all but 8R can be
taken from it.
I haven't tried this myself, but there shouldn't be too many uncertainties
in this. However, the cost/effort of getting an KIO2, is not that much
greater than doing the above, so I am still debating with myself whether it
is worth trying.
73
Sverre
LA3ZA
http://www.qsl.net/la3za/
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