Ramsey Electronics FX Series Manual page 40

FX-SERIES TRANSCEIVER GLOSSARY
The following is a deliberately INFORMAL collection of:
•
Technical terms useful to know in understanding your FX- transceiver
design.
•
Acronyms (phrases expressed by first letters of words: example: PLL =
Phased Locked Loop)
•
Selected Electronics Industry "jargon"
Any of these words or expressions might be used in this instruction manual or
in conversation related to your FX- transceiver, either with other hams or with
Ramsey technicians. These descriptions or notes for a very few terms
certainly are not an "electronics dictionary," but the author/compiler hopes that
they might enhance your grasp of the concepts and language that he has
seen as useful in building and using this transceiver. For more detail, PLEASE
study the introductory part of each Assembly Stage.
ADDER = Anybody who can add can be called an "adder." If we delegate
such work to electronic devices, the most fundamental digital operation after
being in a binary high or low (on or off) state is to be able to find the sum of
such states from two or more sources. The BINARY ADDER performs this
function. See also: BINARY.
AFSK = "Audio Frequency Shift Keying." [SEE: "FSK"] In short, this is a very
popular form of data transmission.
AXIAL-LEAD = Wires stretch out from two opposite ends of a part instead of
from one end, i.e. along the "axis" of the body. For example: L20.
BA- = Manufacturer's PREFIX for PIN-type diodes.
BASIC = "Basic." We're talking about the one computer programming
procedure that should make sense to ALL computer owners. If any further
explanation is needed, visit a library or computer dealer.
BB- = Manufacturer's PREFIX for VARACTOR diodes.
BINARY = the number system based on the two values of 0 and 1. Here are
all the tables that we need to memorize:
0 + 0 = 0
BOARD = Generally refers to "PC board" or "printed circuit board."
BUFFER = An electronic circuit stage, a sort of "referee" that tells its input and
output not to mess with each other.Think about such a task! It may also
provide amplified output of the incoming signal.
CASCADE, cascading = combining two or more identical circuit elements or
components for improved effectiveness.
CARRIER = Transmitted RF signal that is NOT "modulated." It is heard as a
steady tone on BFO-equipped receivers or as a powerful silence (i.e. over
riding all background noise or hiss) on FM receivers.
0 + 1 = 1 1 + 1 = 0 and carry 1 to next
position.