Hello all,
Before I start to look in the manuals...
Do I need the KIO2 module when I want to use my KPA100 in a separate
enclosure?
Do I need more then that?
Thanks in advance
73's, Evert PA2KW
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K2 6442 is working fine and I was able to make a number of contact on Field
Day using an antenna hung from a crane at 103 feet. However, success at
home has been frustrating as I am in a hole, in a valley, at the low end of
the sun cycle, in a community that does not allow antennas. Currently, I
There used to be some sites that described how to put a KPA100 and KAT100
in a remote EC2 enclosure for the K2, but I can't find these anymore. Can
anyone point me to the info?
Thanks & 73,
--Andrew, NV1B
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Chris,
Installing the KPA100 and KAT100 together in an EC2 enclosure is really
easy. Order the KAT100-2 and you will have all the components needed to
connect the KPA100 into the KAT100 board. You will need a cable to
connect from the KIO2 to the KPA100 (or the KAT100) DE9 AUX I/O
connection
Chris -
I built up the KPA-100 / KAT-100 combo earlier this year. I second
Don's comments, and have a few more:
Build and test the KAT-100 first. Get the KAT-100-2 version which has
the larger enclosure.
If you are installing the KAT-100 and the KPA-100 in a separate
enclosure, a
Chris -
I also remember something about increasing the current carrying
capabilities of the RFC on the KIO2 board. I think the recommendation
was to build a new choke from several turns of #24 or #26 wire threaded
through a spare toroid core. You will probably have one laying around
after
Jim,
The short RF Input coax on the KPA100 is still needed, it plugs into the
KAT100 board to receive the input RF that is attached to the KAT100 Aux
RF input. The BNC to BNC cable is entirely on the outside and connects
to the KAT100, not the KPA100. The KAT100 Aux RF input is only used for
Andrew,
The same question was asked on May 5, and here is how I answered. Hope
you find this info helpful.
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I do not have the website information, but I think I can describe it on
words - it is not that difficult.
If you are adding
Hi all,
I recently completed a KPA100 and initially did the testing in my K2 as a
K2/100.
The ultimate goal, however, was to remote it in a EC2 enclosure with a
KAT100-2. The KPA100 is now successfully integrated with the KAT100-2.
The question: should I redo the bias current adjustment now sin
Brian,
If the PA idling current was adjusted to 400 ma (increase over RX
current), then the KPA100 bias should be correct whether operated in the
base K2 enclosure or in a remote enclosure.
In other words, it should make no difference whether it is mounted on
the base K2 or in an external en
Hi Don,
Perhaps against my better judgement, I adjusted the bias current of the
KPA100 in the KAT100-2 remoted from the K2. Now I'm thoroughly confused!
:-(
The current measurements of the KPA100 in the K2 make sense to me:
Power < 11 W, Current ~ 380 mA
Power > 11 W, Current ~ 520 mA
Power > 11
Brian,
Don't worry about the fan - so set it to "nor". Observe the current
into the KPA100 and add 400 ma. That is your target for the initial
collector current. Take the KAT100 out of the picture for this
adjustment - unplug the AUX DC cable from the KAT100. When you go to CW
TEST mode a
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