MFJ MFJ-949C - Tuning Procedure Steps; Power Adjustment and Verification; Receiving-Only Tuning

-MITTER and ANTENNA controls interact, the two controls
can best be adjusted by turning the TRANSMITTER control
a small increment at a time and the rotating the ANTENNA
control for the minimum SWR. Repeat this until a minimum
SWR is obtained.
If a SWR reading of 1:1 is not achieved, increase or de-
crease the INDUCTOR control or position and repeat Step
32° CAUTION: “If” arcing” betweenscapaci tor spdates occunss
increase or decrease the INDUCTOR control one position
and repeat’ Step 3. “NOTE: If a SWR 1:1 cannot be achieved
at this point, repeat Step 3 for each INDUCTOR control
position. Again, -do this in the tune mode or, at.a.low
transmitter power.
After a minimum SWR is achieved, the transmitter power
may now be. increased’ up to 300-watts. @Thisstiuner wile
reduce the SWR of; most -antenna Systems: to nearlyeises.
However in some cases a 1:1 SWR may not be achievable.
If this happens, try increasing or decreasing length of
antenna. Note that a 1.5:1 SWR results only in 4% re-
flected power and 11% reflected power with a SWR of 2:1.
A SWR of 1:1 can occur from more than one = seteon, contnon
settings on the MFJ-949C. When a SWR of 1:1 is obtained,
be sure to check the transmitter power and make sure that
the transmitter power is relatively high. If the trans-
mitter power has decreased substantially, try another
INDUCTOR control setting and repeat Step 3.
When using the MFJ-949C for receiving only, tune the
MFJ-949C as described in Step 1 and Step2.