Ramsey Electronics FM10A manual Partial List of Available Kits Ramsey Transmitter Kits

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PARTIAL LIST OF AVAILABLE KITS

RAMSEY TRANSMITTER KITS

FM25, MP3FM FM Stereo Transmitters

AM1 AM Transmitter

TV6 Television Transmitter

FM100 Professional FM Stereo

Transmitter

RAMSEY RECEIVER KITS

FR1 FM Broadcast Receiver

AR1 Aircraft Band Receiver

SR2 Shortwave Receiver

AA7 Active Antenna

SC1 Shortwave Converter

RAMSEY HOBBY KITS

SG7 Personal Speed Radar

SS70A Speech Scrambler

MX5, MX-10 Mixers

MD3 Microwave Motion Detector

PH10 Peak hold Meter

STC1 Stereo Transmitter Companion

RAMSEY AMATEUR RADIO KITS

FX 146 VHFTransceiver

HR Series HF All Mode Receivers

QRP Series HF CW Transmitters

CW7 CW Keyer

CPO3 Code Practice Oscillator

QRP Power Amplifiers

RAMSEY MINI-KITS

Many other kits are available for hobby, school, scouts and just plain FUN. New kits are always under development. Write or call for our free Ramsey catalog.

FM STEREO TRANSMITTER KIT INSTRUCTION MANUAL

Ramsey Electronics publication No. MFM10A Revision G

First printing: August, 1994

COPYRIGHT 1994 by Ramsey Electronics, Inc. 793 Canning Parkway, Victor, New York 14564. All rights reserved. No portion of this publication may be copied or duplicated without the written permission of Ramsey Electronics, Inc. Printed in the United States of America.

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Contents FM Stereo Transmitter Partial List of Available Kits Ramsey Transmitter Kits Table of Contents Ramsey ELECTRONICS, INCIntroduction Circuit Description Semiconductors Parts List CapacitorsResistors Hardware and MiscellaneousOptional FM10A Parts Layout DiagramREQUIRED, not Supplied Building your FM10A Stereo Transmitter Assembly InstructionsFirst assembly steps Enough said. . . Lets get building Wiring the audio input circuits RF amplifier and final components Page Choosing AN Operating Frequency FM10A frequency range selectionDesired Transmitter Frequency Range C16 Value Audio Connection Adjusting Your FM10A TransmitterTransmitting Frequency Stereo balanceD. Power on Indicator Using the FM10A Within the HomePower Supply Considerations Experimental Broadcasting Projects Antenna Ideas Hints Troubleshooting GuideAntenna Alternatives Appendix a FCC Rules and Information Page Page Appendix B Understanding Legal Field Strength Why talk about acres? Summary Lawful use suggestions for the FM10AImmediately Final comment Ramsey Kit Warranty Additional Suggested Items Estimated Assembly TimeRequired Tools Total Solder Points

FM10A specifications

The Ramsey Electronics FM10A is a compact and efficient FM transmitter tailored for hobbyists, educators, and anyone with a passion for creating their own radio broadcast. This device stands out in the world of electronics due to its user-friendly design and array of features that make it an ideal starting point for both beginners and experienced users.

One of the main characteristics of the FM10A is its simplicity in setup and operation. Users can quickly assemble the kit without the need for advanced soldering skills, making it accessible to a broader audience. The transmitter operates in the FM band, allowing for high-quality broadcasts with minimal distortion. Its frequency stability is maintained through a PLL (Phase-Locked Loop) technology, ensuring that the transmitted frequency remains consistent throughout its operation.

The FM10A features adjustable transmission power, allowing users to customize their broadcast range. With a maximum range of approximately one mile under optimal conditions, this device is versatile enough for personal use, small events, or classroom demonstrations. Additionally, the transmitter is equipped with an audio input for connecting various media sources such as smartphones, computers, or other audio devices. This flexibility makes it suitable for a range of applications, from playing music to broadcasting educational content.

Another notable feature is its compact design, which makes the FM10A easy to transport and set up in different locations. The device is powered by a standard 12V supply, which is widely available, making it convenient for users at home or on the go. The lightweight nature of the unit further enhances its portability, enabling users to take their radio broadcasts anywhere.

The FM10A also includes an LED power indicator and a built-in antenna for straightforward operation. Users can enhance their transmitting range by adding an external antenna, providing further customization based on specific needs. The kit comes with comprehensive instructions to guide even those new to radio transmission through each step of assembly and operation.

In addition to its engaging technical features, the FM10A serves as an educational tool. Users can learn about radio frequency technology, electromagnetic theories, and audio broadcasting principles, making it an excellent addition to any STEM program. Overall, the Ramsey Electronics FM10A is a stand-out choice for anyone looking to delve into the world of FM transmission with a robust, user-friendly device that doesn't compromise on quality and functionality.