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Ramsey Electronics AM25 User Manual

Ramsey Electronics AM25
24 pages
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AM25 1
Ramsey Electronics Model No. AM25
Ever want to be your own disc jockey or talk show host ? Build
and run your own AM broadcast station with this exciting kit !
The AM25 transmitter offers a professional quality signal that is
free from frequency drift and programmable to anywhere in the
AM broadcast band !
Great for transmitting your tape deck, CD player, or voice
throughout the house, yard, or car !
Powerful enough for high school, college, or neighborhood radio
station - in use the world over !
Easily programmed via DIP switch to any clear channel on the AM
broadcast band - from 540 to 1710 KHz.
Operates on the same principle as the “big-boys”, learn how
commercial transmitters work as well !
Superior performance - transmits up to 1/4 mile !
Adjustable transmit power level, low pass filtered output.
Unit runs on 9 - 15 volts DC.
Handy information on FCC rules and antenna hints.
Complete and informative instructions guide you to a kit that works
the first time, every time - enhances resale value, too !
SYNTHESIZED AM
BROADCAST
TRANSMITTER KIT
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Ramsey Electronics AM25 Specifications

General IconGeneral
BrandRamsey Electronics
ModelAM25
CategoryTransmitter
LanguageEnglish

Summary

AM25 Transmitter Introduction

AM25 Circuit Overview

Explains the fundamental principles and structure of the AM25 transmitter circuit.

RF Oscillator and PLL Circuitry

Describes the RF oscillator and Phase-Locked-Loop (PLL) circuit for precise frequency control.

AM25 Assembly Guide

Initial Hardware Installation

Instructions for installing initial hardware components like jacks, switches, and the power connector.

RF Oscillator Component Assembly

PLL Circuitry Component Assembly

Additional PLL and RF Component Assembly

Custom Inductor Winding (L4, L6)

Audio Section Component Assembly

Final Assembly and Frequency Setup

Frequency Chart and Inductor Tuning

AM25 Antenna Setup Guide

AM25 Frequency Programming

AM25 Transmitter Alignment

AM25 Troubleshooting Guide

FCC Compliance Information

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