PK-232 MBX Operating Manual - N3UJJ

6.2.2 HF Receiver Settings
Set your HF receiver (or transceiver) to Lower Sideband (LSB) unless
you connected your PK-232 through the direct FSK keying lines. In
this case, you should select the FSK operating mode. Adjust the
volume to a comfortable listening level.
6.2.3 Tuning in Baudot and ASCII Stations
Tuning in Baudot and ASCII stations properly is critical to successful
operation. Since HF Baudot and RTTY stations use either 170 Hz or 200
Hz Frequency Shift Keying to send data, tuning accuracy is very
important. Follow the tuning procedure below carefully for the best
results in tuning HF Baudot and ASCII stations.
o
o
o
o
Make certain your HF receiver is either in LSB or FSK depending
on your PK-232 set-up.
Turn any IF-Shift and Passband-Tuning controls to the Center or
OFF position.
Tune your receiver carefully between 14.08 and 14.10 MHz (or
another band where you know there is Baudot or ASCII activity)
and listen for RTTY stations.
When you find a station, slowly vary VFO tuning knob on your
receiver and look for a display on the PK-232 tuning indicator
like the one shown below.
Tuned In
If the tuning indicator looks like the one below, the frequency
from your speaker is too low for the PK-232 to copy the signal.
Slowly tune the VFO and make the frequency higher.
Frequency
Too Low
If the tuning indicator looks like the one below, the frequency
from your speaker is too high for the PK-232 to copy the signal.
Slowly tune the VFO and make the frequency lower.
Frequency
Too High
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