c. Rotate the SWR/POWER control counter-clockwise until
the power level reading on the 300 watts scale is the
same as it is on the 30 watts scale as note on Step b.
above.
d. Mark the control setting for the re-calibrated 300 watt
range.
Antenna Tuner Operation
The ANTENNA and TRANSMITTER controls on the MFJ-924 present a
minimum capacitance at "0" and a maximum capacitance at "10".
After properly installing the MFJ-924, use the tuner to tune
for minimum SWR as describe below.
1. Set both the TRANSMITTER and ANTENNA controls to "0".
2. Apply enough transmitter
power to have an adequate
indication on your SWR meter. Do not apply full power while
tuning for minimum SWR.
3. While transmitting, alternately adjust the TRANSMITTER
control and the ANTENNA control for minimum SWR. Since the
TRANSMITTER and the ANTENNA controls interact, the two
controls can best be adjusted by turning the TRANSMITTER
control at a small increment at a time and then rotating
the ANTENNA control for the minimum SWR. Repeat this
process until a minimum SWR is obtained.
4. After minimum SWR is obtained, full output power up to
300 watts PEP may be applied to the MFJ-924.