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HomeClassifiedAircraftHelicopterClassifieds - ElectronicsOther Sold  JR RCVR CH14 wanted
10-12-2005 08:25 PM  12 years agoPost 1
Rozy

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Crossville TN

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Anyone got a Channel 14 for a JR RCVR they want to part with as JR no longer makes them is what I have been told. But I need one. ANYONE??? Jim

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10-12-2005 09:29 PM  12 years agoPost 2
rckrzy1

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Hurst Texas

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you can NOT use a single conversion JR receiver on channels 11-14.



Wildcat Fuels

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10-13-2005 01:06 AM  12 years agoPost 3
Rozy

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Crossville TN

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Okay
Do you know were I can get one or better yet do you have one??

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10-13-2005 03:29 PM  12 years agoPost 4
rckrzy1

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Hurst Texas

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Do you know were I can get one or better yet do you have one??
They never made them. You won't find one.

You could have one custom cut but that would cost $$

And are you aware as to why they don't make them ? As JR single
conversions will recieve other channels besides 11-14, it can't filter
out image frequencies.
Single Conversion FM receiver would generate an internal signal of 72.070 + 0.455 = 72.525 MHz. This results in an IF of 455 Khz for OFF and 455 + 5 = 460Khz for ON. Now someone shows up with a Futaba transmitter on channel 60 (72.990 MHz) and happily bleeps out 72.985 MHz for ON. The channel 14 receiver, not knowing any better, mixes the 72.985 with its internal 72.525 and comes up with 72.985 - 72.525 = 460 Khz which is its ON!! So ... crash.



Wildcat Fuels

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10-13-2005 03:31 PM  12 years agoPost 5
chris-fry

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I guess it is called Ohio???

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I beg your pardon, I have some here at work!!!

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10-13-2005 03:35 PM  12 years agoPost 6
rckrzy1

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Hurst Texas

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beg your pardon, I have some here at work!!!
Grey colored single conversions for 72mhz channels 11-14 ?



Wildcat Fuels

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