Lloyd,
Set the jumpers in the XV222 for the anticipated drive power - whether
that be 5 watts from the high power K2 output or 1 mW from the K60XV
outputs. Set the K2 TRNx to correspond to those settings.
First set the PA bias as indicated in the manual - 20 mV indicated
across TP3 and TP4.
Then select the TRNx band that you will use (set the DIP switch in the
XV222 to the same TRNx selection), Then do a TUNE on the K2. The power
should be as set in the K2 menu and it will provide a constant carrier
to the XV222. The K2 Power knob may require adjustment because the
power setting in the K2 menu is the maximum power that will be sent to
the XV222.
With the K2 power set to what you will use, adjust the Input Attenuator
pot in the XV222 to provide some readable voltage at TP5 and then adjust
the inductors for an increase in that voltage.
If the voltage becomes too high (over 10 volts), reduce the Input
Attenuator to bring it down to a decent level and continue peaking the
inductors for the maximum RF voltage at TP5.
After peaking the inductors (go through them at least 3 times because
they interact), then set the Input Attenuator to produce 20 watts on
your external wattmeter and the adjust the Power Calibrate pot to
indicate 20 watts on the LEDs.
Give the XV222 adequate cooling time between these steps. Feel the
underside of he transverter - warm is OK, but too hot to hold your
finger on it for more than 30 seconds is too hot.
At this point, the peaking and power calibration procedure should be
complete - time to operate.
73,
Don W3FPR
On 1/26/2014 9:05 PM, Lloyd Korb wrote:
I just finished building the XV222 and at Part VI - Filter Alignment in the
manual. Being a new user to the K2 I am not sure how to generate a
constant signal (carrier) so I can tweek the coils.
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
