40-Meter Band Pass Filter
Alignment
Connect an antenna or a signal generator to the antenna jack
on the rear panel. If you use a signal generator, set it for approx.
7150 kHz at an output level of about -100 dBm, or strong
enough
to activate the S-meter. If you're using an antenna, tune in a
signal
in the range of 7100-7200 kHz. If you cannot find a signal, you
can use atmospheric noise from the antenna to peak the filter.
Using the plastic tuning tool, adjust both L1 and L2 (back left
corner) for peak signal strength. You may be able to use the
bargraph if the signal is strong enough. If you do not hear any
signals or noise, see Troubleshooting.
i
In CW mode, the frequency shown on the display takes into
account an offset equal to your sidetone pitch. This allows you to
determine a station's actual carrier frequency by matching their
pitch to your sidetone, rather than by zero-beating the signal. The
SPOT
switch can be used for this purpose.
6
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