Elecraft XV Transverter Owner's Manual - Manual (Page 31)

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Alignment and Test
A complete alignment and test using the following procedures is essential
after assembling your kit. These procedures can be repeated whenever
desired to confirm that the transverter is working correctly and adjusted
for optimal performance.
Perform the first seven parts of the procedure in the order given. Each part
assumes you have completed the adjustments and set up your transverter
as described in the earlier parts.
The following test equipment will be needed:
28 MHz transceiver or transmitter and receiver to use as the I.F.
system, with interconnecting cables.
Power supply capable of providing 13.8 VDC at 6 A, minimum.
Digital Multimeter (DMM).
Noise Generator (Elecraft N-Gen or equivalent) or signal
generator with output in the RF frequency range of the
transverter.
RF Wattmeter capable of measuring 20 watts with good
accuracy.
RF dummy load, 20 watts minimum
Adjustment tool for the inductors in the transverter (supplied
with transverter).
RCA plug with the center pin wired to the shell.
If you are aligning an XV50 or XV432 transverter and wish to perform the
optional local oscillator frequency calibration, you will need one of the
following:
A frequency counter capable of measuring signals in the 22 or 50
MHz range for the XV50, or 404 MHz for the XV432.
A calibrated signal generator capable of producing output with
good frequency accuracy at 432 MHz (for the XV432) or at 50
MHz (for the XV50). An H.F. transmitter with a well-calibrated
VFO that covers the 12 meter Amateur band may be used for the
XV50.
Part I - Initial Setup
Pre-set the potentiometers on the RF PCB as follows:
R10 (Power Cal) at mid-range.
R13 (LNA Bias) XV50, XV144 or XV222: full CCW (counter
clockwise). XV432: full CW (clockwise).
R22 (Input Atten. Adjust) full CCW.
R39 (PA Bias) full CCW.
Skip this step if you are aligning an XV432. On an XV50, XV144 or
XV222, verify that the tuning slugs have been removed from the
following inductors. If not, remove the cores and discard them. These
slugs will not be used:
L1
L10 (In the XV50 this inductor is a toroid and has no slug.)
L11
i
In the next step you will use the alignment tool supplied with
your transverter to preset inductor slugs a certain number of turns
down from the top of the coil. You may find it easier to count the
turns if you place a readily-visible mark on the alignment tool.