Specifications

If the tuning indicator looks like the one below, the frequency
from your speaker is too low for the PK-900 to copy the signal.
Slowly tune the VFO and make the frequency higher.
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MARK |        | SPACE
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Tuning too low for discriminator indicator (BAR 0)
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|          |
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Tuning too low for magic eye indicator (BAR 3)
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|   |
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Tuning too low for center tune indicator (BAR 2)
If the tuning indicator looks like the one below, the frequency
from your speaker is too high for the PK-900 to copy the
signal. Slowly tune the VFO and make the frequency lower.
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MARK |         | SPACE
——————————————————————————————————————————————————————————————
Tuning too high for discriminator indicator (BAR 0)
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|           |
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Tuning too high for magic eye indicator (BAR 3)
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|   |
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Tuning too high for center tune indicator (BAR 2)
o Adjust the THRESHOLD control so the PK-900's port 1 DCD LCD
is on when a properly tuned RTTY station is being received.
HINT: If you adjust the THRESHOLD control so the DCD LCD goes out
when no station is being received, you will prevent garbage
characters generated by noise from printing on your screen.
After you have an ASCII or RTTY station tuned in, you should start
seeing the copy printing on your screen.
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