Ramsey Electronics FZ-146 Specifications download pdf (Page 40)

FX 146 • 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 0 + 1 = 1 1 + 1 = 0 and carry 1 to next

position.

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.

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Ramsey Electronics FZ-146 Specifications Page 40