Parts Layout Diagram - Ramsey Electronics FR-10 Assembly And Instruction Manual

TESTING, ALIGNMENT AND ADJUSTMENT
To prepare the FR-10 FM VHF Receiver for reliable monitoring
operation, you will need these basic tools:
?
1. A useful 10 meter signal source.
?
2. Hexagonal, non-metallic coil slug alignment tool for L3.
?
3. Small screwdriver to adjust L4.
1. Signal source: This signal can be from your test bench equipment or
from a "live" source such as a local repeater. The "live" signals are best
for fine-tuning, but they also have that VHF communications character of
being fast and to the point. Good test bench signal sources include your
own 10-meter transceiver, if you are licensed to use it, a signal
generator or grid-dip oscillator.
2. L3 Alignment Tool: If you do not already have a set of plastic or
nylon coil alignment tools and do expect to try further Ham radio or
electronic hobby projects, such tools are worth having and can be found
inexpensively at any electronics store including Radio Shack. While a
metal Hex key wrench can fit the coil slug, the metal itself would
damage the coil inductance drastically and therefore should not be used.
With patience and sandpaper, a useable tool might be formed from a
wood or plastic rod.
FR-10 ? 20
FR-10 PARTS LAYOUT DIAGRAM
FR-10 ? 9