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Ramsey Electronics Ramsey 220 MHZ FM RECEIVER KIT Owners Manual

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    Page 1 FR-220 • 1 220 MHZ FM RECEIVER KIT Ramsey Electronics Model No. FR220 Keep an ear on the local repeater action from your easy chair with this simple and fun to build FM receiver. Tunes the entire 220 MHz band. Ideal way to audition before buying a rig! •Tunes any 5 MHz portion of the 220 to 240 MHz band. •Excellent receiver for new Novice classes! •Excellent performance, less than 1 uV sensitivity. •Tuned input, low noise preamp stage. •True Dual-conversion superhet...
    Page 2 FR-220 • 2 PARTIAL LIST OF AVAILABLE KITS RAMSEY TRANSMITTER KITS • FM10A FM Stereo Transmitter • FM25B Synthesized FM Stereo Transmitter • AM25 Synthesized AM Transmitter • AM1 AM Transmitter RAMSEY RECEIVER KITS • FR1 FM Broadcast Receiver • AR1 Aircraft Band Receiver • AA7 Acti ve Antenna • SC1 Shortwave Converter RAMSEY HOBBY KITS • SG7 Personal Speed Radar • SS70 Speech Scrambler •...
    Page 3 FR-220 • 3 FR220 FM RECEIVER KIT Ramsey Publication No. MFR220 Price $5.00 TABLE OF CONTENTS I ntroduction to the FR220 .............. 4 Circuit Description ......................... 5 Parts List ........................................ 6 Simplified Block Diagram .............. 8 Parts Layout Diagram .................... 9 FR220 Assembly Instructions ........ 11 Testing and Alignment ................... 21 Enclosure Ideas ............................. 24 Troubleshooting Guide...
    Page 4 FR-220 • 4 INTRODUCTION Because all but the most expensive scanners skip over the 220 MHz band, and most Ham rigs are 144 or 440 MHz, 220 is the long forgotten child. This nifty little receiver will allow you to check out 220 at a very affordable price! When you see how uncrowded the band is, and its excellent VHF propagation characteristics, were sure youll order our 220 MHz transceiver and join in. This receiver is a good project for amateurs wishing to become more familiar with 220 Mhz FM...
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