[Elecraft] Transverter Calibration Question

[Don Wilhelm]

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.
>
>