EXPAND YOUR RCI TO 25 MHZ AND 33 MHZ
There is a trick to expand your RCI over the factory programmed limits. Yes, I agree that it's not a very
clean mod but it works great. So what _
This trick is to change the X2 crystal ( Quartz ) that is a 10,240 Mhz value one. You can experiment
quartz from 9 Mhz to 12 Mhz ( It'll depend on what you have ). This modification will increase the
coverage of your RCI from 25 Mhz to 33 Mhz if you make all the quartz switches. Be carefull, the
frequency that will be indicated by the LCD screen won't be true of course. You will need a separate
frequency counter.
May I suggest unsoldering the original crystal and replace with a mounting slot. It'll then be easier to
exchange crystals quickly when needed.
DO NOT TOUCH TO THE OTHER crystals. It would cause problems.
www.radioaficion.com
Содержание RCI-2950
Страница 26: ...Ranger RCI 2950 Main PCB Schematic Diagram ...
Страница 27: ...Ranger RCI 2950 CPU PCB Schematic Diagram ...
Страница 28: ...Ranger RCI 2950 Chassis Exploded View Drawing ...
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Страница 34: ...Ranger RCI 2950 LCD P C BOARD EPT2950217 Trace Layout RESISTORS ...
Страница 37: ...LCD P C BOARD EPT2950217 Trace Layout ...
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Страница 39: ...Ranger RCI 2950 CPU PCB EPT295043Z Trace Layout ...
Страница 46: ... SHORT PIN 2P EX07N48151 www radioaficion com ...
Страница 47: ...CPU PCB EPT295043Z Trace Layout ...
Страница 48: ...Ranger RCI 2950 MIC UP DW PCB EPT295080Z ...
Страница 49: ...Ranger RCI 2950 MIC JACK P C BOARD EPT295070Z CERAMIC CAPACITORS Ref Description MFR Part No ...
Страница 52: ...Ref Description MFR Part No C405 01uF 50WV Z SL CERAMIC CCO501037L C406 01uF 50WV Z SL CERAMIC CC0501037L ...
Страница 53: ...Ranger RCI 2950 RCI 2950 VSWR P C BOARD EPT360040Z Schematic Diagram ...
Страница 57: ...J601 PCB CONN SOCKET 3P EX07N41216 J602 PCB CONN SOCKET 3P EX07N41216 ...
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Страница 62: ...PCB CONN SOCK 6P L 21 8mm EX07N48441 ...
Страница 63: ...Ranger RCI 2950 EPT295031Z Push Switch PCBEPT295031Z Trace Layout www radioaficion com ...
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Страница 81: ...C348 3PF 50WV C CH CERAMIC CC050030 IA C349 01uF 50WV Z SL CERAMIC CC0501037L www radioaficion com ...
Страница 102: ...R336 10K 1 4W U TYPE RCM141034A www radioaficion com ...
Страница 130: ...www radioaficion com ...
Страница 137: ...www radioaficion com ...
Страница 139: ...INSTALL MY RCI ON THE CAR S LIGHTER ADAPTATION OF STEREO HEADPHONES ...
Страница 140: ...www radioaficion com ...
Страница 148: ...TONE MODIFICATION You need to listen with confort Add a tone capability to your RCI Very simple www radioaficion com ...
Страница 150: ...Ranger RCI 2950 Alignment Locations TX ...
Страница 152: ...Ranger RCI 2950 Alignment Locations RX ...
Страница 154: ...Ranger RCI 2950 Alignment Locations PLL ...