B. Look for the vacant frequency channel not to interfere with other stations.
Switch the amplifier to OPER (operate) position, and drive a signal of any mode
(CW, SSB/voice, RTTY etc.) with 50W (80W max.) from the radio.
Then the tuner will automatically start to tune in STBY (stand by) mode of
amplifier.
When the tuning is finished, tuner will issue the command to the amplifier to
switch to OPER position.
*Note1. When the tuner fails to tune, reduce the drive power and reset the
FUNCTION button. Antenna may have a critically high SWR of 4.0 or
more.
*Note2. Linear amp may trip with high reflected power protection while tuning.
Reset the amp, and complete the tuning step.
⑤
To start full power transmission:
Even if the tuner is once tuned, it will automatically try to re-tune, when SWR
becomes approximately 1.5 or higher during transmission.
(Caution: This tuner is designed to automatically track the change of SWR.
However, if the sudden sharp SWR change is expected in such an
occasion as when the transmitting frequency is swept from one band
edge to the other, be sure to re-tune with the amplifier in Stand-By
mode, or reset the amplifier to finish the auto tuning if Pr prot has
tripped during tuning process.)
5) Conditions for Self Tuning Initiation
Self auto tuning is not initiated, unless any one of the following condition is satisfied.
a. Matching status has deviated out of SWR=1.5
b. Forced tuning button (ENTry) has been pressed.
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