Hilberling PT-8000 Operating Manual page 68

C–58
Pi t 81
CAL L menu
Pi t 82
Pushing CAL L softkey will call up a menu which allows to calibrate the
preselector manually by tuning the L component. Segments of the main
inductor may be added by activating A/B/C/D simultaneously:
The display will change
The alignment of the preselector can be done
manually. Both C and L may be tuned. This function is
preliminary – it will only work on the actual frequency
tuned – i.e. there is no storage of data yet.
To align use a signal received on the tuned frequency
or by means of a signal generator.
The capacitors of the preselector may be manually
tuned by rotating the STEP-VFO control. Tuning range
is between 1 and 255.
Tuning the Cs is possible without activating a software
menu – unlike tuning L (see below).
Return to the Pre CAL menu
Select part A of main inductor
Select part B of main inductor
Select part C of main inductor
Select part D of main inductor
TBD
Tuning of preselector is normally not necessary – the alignment has been
done in the factory. However if done one should bear in mind preselector
calibration will take around 30 minutes. No HF antenna should be attached to
the unit during calibration.
Part C Installation And Operation