Hello,
I received my KRX3 two weeks ago, and, after much difficulty, have
finally got it installed and working. Here are the problems I
encountered (All due to my incompetence, but maybe this will help
others)
1) If you place the screws, washers and sleeves in a tin muffin pan
for sorting, be sure the pan is securely fastened to the desk or table
so you will not knock it off, scattering all the tiny pieces. (Ask me
why this one if first!)
2) When you place the plastic shield over the battery, use another
piece of tape to hold the shield on the circuit board. Otherwise it
can be pulled off the battery while installing the KRX3 in the K3. You
will know that the battery cover came off when all the panel lights go
out when you attempt to turn on the K3.
3) When placing the top shield in the KRX3, be sure not to pinch L33
between the shield and the circuit board. This WILL break the lead on
L33.
4) Check at least 5 times to be sure the pins line up correctly when
you place the KRX3 into the radio. Of course on the last attempt to
line up all pins you will get them one off.
5) Go to CONFIG:KRX3 and select either ANT=BNC or ANT=ATU, depending
upon how you have selected the received signal to enter the SUB
receiver. If you do not do this, the SUB Receiver will seem to not
have an antenna connected to it. (Mainly because it really WON'T have
an antenna connected to it!)
6) If you have not already done so, go to Elecraft's web site and
download the software and INCLUDE the software for the DSP2.
7) If you selected to use the AUX antenna input, and wired it for
that mode( and selected CONFIG:KRX3:ANT=BNC), you MUST go to EACH
BAND, select BSET and then select the AUX antenna for that band.
Otherwise, you will not have any antenna connected to the SUB receiver.
8) If the sensitivity is low on both the Main Receiver and the SUB
receiver, check the 6" TMP cable from J5 on the KREF3 board to J82 on
the KRX3. If the shield is broken, the S meter is reduced by at least
5 S units and you cannot, no matter how many times you try, increase
the S meter reading by calibrating it.
9) If you are listening to the SUB receiver and attempt to change
mode, it will not change unless you select BSET first. Do not keep
pushing the mode button, wondering why it is not working!
10) Always remember to plug the speaker back in before tightening all
nine screws in the top. And while you have the top cover off, check
to be sure all screws are connected to the stiffening bar. (You did
remember to replace that, didn't you?)
Finally it seems to be working... but I have one question. Why, on
one occasion as I was pushing the SUB button, did the word "diversity"
appear, but I have not seen it at any other time? What am I doing/not
doing right this time?
BTW, with my record of stupid mistakes, I would probably be a good
candidate to beta test the writing of the manuals!
Bill
W4ISH
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