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If the switch of a selected amplifier is depressed a second time, the amplifier will be
taken off line and the green LED indicator will blink. The top line of the LCD will show
“BYPASS” to confirm that the amplifier is in a ready mode but is currently off-line.
Depressing the amplifier select switch a third time will bring the selected amplifier back
on line.
The SWAP switch provides a convenient way to recall previous transceiver and
amplifier selections. Pressing this switch toggles between the currently selected
transceiver/amplifier selections and the previous transceiver/amplifier selections. The
SWAP feature provides a handy way to make A-B comparisons between rigs, or to recall
instantly a prior transceiver/amplifier combination. Being able to call up completely
different rigs, automatically transferring all RF coax cables, microphone, key, etc, in a
tenth of a second is guaranteed to impress one’s ham buddies.
3. Elapsed Time Features: Momentarily depressing the Elapsed Time switch
starts a one-time ten minute timer. A beep confirms the selection, and a “
∗
” symbol
appears on the lower right corner of the LCD to show that the timer is running. After ten
minutes, the controller will send “ID” in morse code and the timer will turn off. If the
Elapsed Time switch is held down for a half second, then a repeating timer is activated.
In this case the LCD will show a “#” symbol in the lower right corner, and the controller
will send “ID” in morse code every ten minutes, until cancelled. An active timer is
cancelled by pressing the Elapsed Time switch, with “K” being sent in morse code to
confirm the cancellation.
If the Elapsed Time switch is held down while the StationPro II is powered up,
then the LCD will briefly show the number of accumulated hours and minutes of
StationPro II use.
One application of this feature is to track the yearly hours of station operation. For
example, the operator can reset the timer to zero on January 1, and twelve months later
have a record of total station activity for the year. The timer is reset to zero by turning on
the StationPro II while holding down the AMP1 switch.
4. AMP TUNE function: Momentarily pressing the AMP TUNE switch injects a
pulsed 1000 Hz tone for ten seconds into the microphone input of the selected
transceiver. The purpose of this pulsed tone, which has a 50% duty cycle, is to permit the
operator to tune up safely a selected linear amplifier without fear of exceeding the
amplifier’s power rating. The plate current, grid current, and power output meters of the
amplifer, which read average values, will show roughly half of their normal values while
the pulser is engaged. While the pulsed tone is active, an LED indicator next to the AMP
