Ken,
Just as verification to what David told you --
Pick the TRN (XV) number that you wish to use for the XV432 - that is
the "n" in the XVn menu settings.
XVn RF is the output band for your transverter. The KX3 should show the
output frequency.
XVn PWR is the power *input* to your XV432. Set the XV432 jumpers and
input attenuator to work with this power level.
XVn OFS will compensate for the frequency of the transverter local
oscillator. You can adjust that later when you can receive 432MHz
beacons of a known frequency. If you have an accurate frequency
counter, you can adjust the LO frequency in the XV432 to something close
to 404MHz, then later use the XVn OFS menu to put the frequency display
"right on".
XVn ADR is not too important for the KX3 and the XV transverters, but if
you are decoding the band data from the AUXBUS, then it will be relevant
to the band decoder.
The KX3 does not provide full integration with the XV series
transverters like the K2, K3 and K3S because there is no KX3 output to
tell the transverter when to turn power on and when to set the transmit
and receive state (other than the KEYOUT signal from ACC2). A
specialized band decoder which reads the AUXBUS signal and can tell the
XV432 that the band is selected would allow this automatic selection,
but that is not present in the native KX3.
Yes, you will have to provide a means of switching the KX3 output coax
to the XV432 when that band is selected. That band information is
available on the AUXBUS if the ACC2 GPIO is set to TRN CTRL in the menu,
but it has to be decoded.
73,
Don W3FPR
On 6/25/2016 11:12 PM, Ken Alexander wrote:
Hi All,
I stumbled my way through the rest of the XV432 transverter alignment
and everything appears to be fine. Just trying to do the transverter
band setup from page 21 in the KX3 manual.
"XVn RF sets the operating frequency". I assume this means the
transverter's operating frequency? Is it just a number for display
like 432 or something? What's a legitimate number to enter when I'm
setting up an XV432? No information in the manual. I tried going to
look at the transverter setup for my KX3-2M option but it doesn't
display any more??
"XVn PWR sets maximum power output in watts". The XV432's maximum
output is 20 watts. How come the setting only goes as high as 8 watts
and then rolls over back to 0.5 watts?
"XVn OFS can compensate for frequency offset". We read my local
oscillator's output to be 4 Hz high and left it at that. Is this
where I compensate for that, if it's even needed? If so, the manual
doesn't say how to do it. It only says you don't need to do it for
the KX3-2M/4M module. That doesn't help me.
"XVn ADR". It doesn't sound like I really need to do this if I have
just the one XV transverter. The Key Line at ACC2 keys the
transverter just fine as-is. My next transverter will most likely be
for 1296, which unfortunately means it won't be an Elecraft. In that
case I guess I can still set it up as a band in my KX3 but I'll have
to manually disconnect my XV432 and then connect up the 1296
transverter. Well, or use a good antenna switch or relay.
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