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Ramsey Electronics FR6, Инструкция по эксплуатации

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FR6 

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 10 

Содержание FR6

Страница 1: ...xcellent performance less than 1 uV sensitivity Tuned input low noise preamp stage True Dual conversion superhet design with 2 pole Ceramic High IF and 6 pole Ceramic low IF filters Front Panel Volume...

Страница 2: ...citance Meter RAMSEY AMATEUR RADIO KITS HR Series HF All Mode Receivers QRP Series HF CW Transmitters DDF1 Doppler Direction Finder CPO3 Code Practice Oscillator QRP Power Amplifiers RAMSEY MINI KITS...

Страница 3: ...Diagram 8 Parts Layout Diagram 9 Schematic Diagram 10 FR6 Assembly Instructions 11 Testing and Alignment 18 Enclosure Ideas 20 Troubleshooting Guide 21 Notes for Advanced Users 22 Ramsey Kit Warranty...

Страница 4: ...ld not be taken lightly even by experienced licensed radio amateurs Still this step by step manual is written with the beginner in mind because we are well aware of the fascination that Six Meters and...

Страница 5: ...r oscillator The tuneable oscillator section of the SA602 is aligned to operate at 10 7 MHz higher than the signal fed and amplified by Q1 For example to receive 50 54 MHz signals the oscillator must...

Страница 6: ...Q4 1 SA602 8 pin IC U1 1 MC3359 18 pin FM receiver IC U2 1 LM386 8 pin audio amplifier IC U3 1 Varactor diode BB505 orange body marked BB505 D1 1 1N4148 signal diode D2 Special Components 1 10 24 MHz...

Страница 7: ...e speaker jack J2 1 9 volt battery bracket 1 9 volt battery snap on clip REQUIRED NOT SUPPLIED 1 9 volt alkaline battery 1 VHF antenna with cable terminated in RCA style plug or adapter 1 Speaker or h...

Страница 8: ...FR6 8 U2 3359 FR6 BLOCK DIAGRAM...

Страница 9: ...FR6 9 FR6 PARTS LAYOUT DIAGRAM...

Страница 10: ...FR6 10...

Страница 11: ...ldering iron having enough heat to damage a component 5 Trim or nip excess wire lengths after soldering NOTE Save some of the longer wire scraps nipped from resistors and capacitors These will be used...

Страница 12: ...her transistors supplied 13 Position Q1 as shown on the PC board layout with the flat side facing to the right toward the middle of the board Press the transistor snugly into the PC board so that only...

Страница 13: ...ed 100 101 or 101K 27 Installation of L3 It is important that the body of this coil be snug against the PC board for mechanical stability which directly affects the frequency stability of the receiver...

Страница 14: ...many functions of the MC3359 FM receiver IC further assembly steps will be in the order of easiest parts installation 3 TRANSISTOR COUPLING AFC CIRCUITS VOLUME SQUELCH CONTROLS 39 Install Q2 a 2N3904...

Страница 15: ...ng the two pins and the two mounting tabs 64 Installation of MC3359 IC As in the case of the NE602 IC you could choose to install an 18 pin IC socket rather than soldering the IC directly Re read the...

Страница 16: ...ellow violet yellow 5 FINAL CONNECTIONS THE LM386 AUDIO IC STAGE You now have a working FM receiver ready for adjustment The output of the MC3359 FM IC simply needs to be boosted to listening level A...

Страница 17: ...ue In using such methods make sure that the battery will not block the PC board s mounting hole in its vicinity Wiring of the PC board is now complete If you have the the patience we suggest a short b...

Страница 18: ...nce TV sound signals are fairly wideband FM 75 KHz which is too much for our narrow band FM ceramic IF filter 2 L3 Alignment Tool If you do not already have a set of plastic or nylon coil alignment to...

Страница 19: ...in dozens of hand held QSO s on the premises without an antenna connected You can expect to monitor local repeater and simplex transmissions easily using a simple groundplane style antenna The receiv...

Страница 20: ...our own lamp that glows in the dark 3 We could not decide which color you would like best THE RAMSEY ELECTRONICS CASE KNOB HARDWARE OPTION Your finished receiver can be installed in a variety of enclo...

Страница 21: ...r a frequency counter to verify oscillator operation Next make sure that the 10 24 MHz crystal oscillator is running by tuning a general purpose HF shortwave receiver to that frequency If either oscil...

Страница 22: ...f your Ramsey Kit Warranty We regret that the factory cannot offer any assistance in performing this or any other modification so you re on your own but that s what experimenting is all about A helpfu...

Страница 23: ...be assured that the 1K ohm resistors are actually the missing 10 K parts Hum m m I guess the red band really does look orange Ramsey Electronics project kits are packed with pride in the USA If you b...

Страница 24: ...ETER FM RECEIVER KIT RAMSEY ELECTRONICS INC 590 Fishers Station Drive Victor New York 14564 Phone 585 924 4560 Fax 585 924 4555 www ramseykits com REQUIRED TOOLS Soldering Iron Ramsey RTS06 Thin Rosin...

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