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Recievers. Single VS. Dual conversion

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Old 02-05-2003, 09:09 AM
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beavertail
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Default Recievers. Single VS. Dual conversion

I was wondering what the difference between single coversion and dual conversion recievers. I have noticed that JR uses some single and dual, and Hitec uses dual conversion in the supreme.. Does this make the hitec more reliable. I would like some EDUCATED input on this. I was asked this at a get together and would like to know.

Thanks
joey
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Old 02-05-2003, 11:29 AM
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Steve Lewin
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Default Recievers. Single VS. Dual conversion

http://www.torreypinesgulls.org/Radios.htm

BTW you'll find that it's not quite that simple, JR's top end receiver is dual conversion and Hitec make quite a few single conversion receivers. Anyway DC doesn't improve reliability, it's basically just better at rejecting one specific type of interference.

Steve
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Old 02-05-2003, 02:09 PM
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Default Recievers. Single VS. Dual conversion

It really has no bearing on the quality of or performance of the receiver. If you want some very good informative reading, check out the site below. There is a link to "Single coversion vs. dual".
Good stuff.

http://www.bergent.net/
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Old 02-05-2003, 03:40 PM
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k
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Old 02-05-2003, 05:11 PM
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Default Re: I

Originally posted by beavertail
would like to know if there is anything I can do to "make" them usable with my JR radios
First of all I suspect this thread is not about duel/single conversion filtering systems at all but about modulation shift. I am sure you get an accurate answer here if you will say exactly what it is you want to do. If you will just say what make and model of Tx as well as the make and model of rx in addition to the type aircraft (park flyer, conventional glow etc.) then possibly you can get some help.

John
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Old 02-05-2003, 08:32 PM
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Default Your right, my bad!

I got confused with which thread I was in, sorry about that

thanks for pointing that out John.
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Old 02-05-2003, 09:27 PM
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Default Recievers. Single VS. Dual conversion

No, this is the conversion system for the receivers.
While my frequencies may not be correct the principle is right.

A dual conversion receiver converts your channels frequency to 10.7 mhz then it converts it again to 455khz before arriving at the 1.5ms pulse train that goes to the servos.

The single conversion only goes the the 455 khz before going to the 1.5ms train.
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Old 02-05-2003, 10:02 PM
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Default Thanks

I got the idea, guys, thanks alot. It makes alot more sense now
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Old 02-06-2003, 01:03 AM
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Default Recievers. Single VS. Dual conversion

Originally posted by ec121k
It really has no bearing on the quality of or performance of the receiver. If you want some very good informative reading, check out the site below. There is a link to "Single coversion vs. dual".
Good stuff.

http://www.bergent.net/
Thanks for the very informative site..........
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Old 12-15-2003, 05:12 PM
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Default RE: Recievers. Single VS. Dual conversion

Has anyone flown the Hitec Supreme 7 SS rx? I have both Futaba and JR transmitters and i am interested in knowing about the Shift Select feature this rx has.

Thanks--
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Old 12-20-2003, 04:47 PM
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Default RE: Recievers. Single VS. Dual conversion

ORIGINAL: Steve Lewin

Anyway DC doesn't improve reliability, it's basically just better at rejecting one specific type of interference.

Steve
And that one specific type of interference is a major cause of interference in MANY areas

BTW the Torreypines article really blows it with the AM description . AM RC IS Amplitude Modulation PERIOD . They seem to be confusing the coding scheme with the modulation type. They actually do a similar job with the FM description . Other than that it is a good source .
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