User's Manual

8 Reciter Tuning Holes MB8100-90-00-806 © TEL 2004
Tuning Tool
The recommended tuning tool (for adjusting the front-end helical filters and
the VCOs in the reciter) is included in the calibration test kit (see Equipment
Required). It can also be ordered separately (order code 937-00012-00)
.
Reciter Tuning Holes
The following topics show the location of the holes for tuning the front-end
helical filters, and the VCO (Voltage Controlled Oscillator) in the reciter.
Adjusting the
frequency
When you tune the VCOs and the front-end helical filters, turn the tuning tool:
■ Clockwise to reduce the frequency
■ Anti-clockwise to increase the frequency
Holes for Tuning the Receiver VCO and Exciter VCO
The holes for tuning the receiver VCO and exciter VCO are shown below.
Holes for Tuning the Receiver Front-End
When running the Tune Receiver Wizard, you will need to tune both sets of
front-end helical filters. Each set consists of three holes (see the following
photograph).
Use the tuning tool as follows:
1. Insert the tuning tool into the first hole of the first set. You can start with
the hole on the left side and proceed along to the hole on the right, or vice
versa (never start with the centre hole).
20 mm
Bit shape:
Blade diameter: 2.2 mm Blade thickness: 0.4 mm
Exciter VCO
tuning hole
Receiver VCO
tuning hole
Sets of front-end
helical filters