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Single vs. Dual Conversion - Need clarification
Does receiver conversion (single vs. dual) have any bearing on a transmitter's ability to communicate with the receiver? I understand the benefits of dual vs. single, but I am not clear on where single vs. dual needs to be considered, i.e. must the conversion factor of the crystal be matched to the receiver as well as to the conversion factor of the transmitter crystal? I'm a little confused and would like some edification from someone more knowledgeable than I.
Thanks for your time. |
RE: Single vs. Dual Conversion - Need clarification
Sorry, dunno.......... Maybe you should post this in the radio section to get a good answer. Some of those guys on there make my head spin when they talk that electronic garble.
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RE: Single vs. Dual Conversion - Need clarification
ORIGINAL: Soko42vv Does receiver conversion (single vs. dual) have any bearing on a transmitter's ability to communicate with the receiver? I understand the benefits of dual vs. single, but I am not clear on where single vs. dual needs to be considered, i.e. must the conversion factor of the crystal be matched to the receiver as well as to the conversion factor of the transmitter crystal? I'm a little confused and would like some edification from someone more knowledgeable than I. Thanks for your time. |
RE: Single vs. Dual Conversion - Need clarification
Thanks. That's what I needed to know.
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RE: Single vs. Dual Conversion - Need clarification
And the only crystal consideration is for the receiver, ie.. dual conversion receiver requires a dual conversion crystal.
The transmitter doesn't care weither it is single or dual conversion, only if it is positive or negative shift which is a different thing all together. |
RE: Single vs. Dual Conversion - Need clarification
Yup...
On our field I cannot fly single conversion at all due to interference from neighboring transmission towers and power lines. Whenever I try a single conversion RX I get glitches no matter the frequency. Duals work just great... BTW: even the Spectrums and Fasst radios get glitches too! This surprised the heck out of a few of us last weekend as we watched a plane on the ground doing this. |
RE: Single vs. Dual Conversion - Need clarification
Thank you again.
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RE: Single vs. Dual Conversion - Need clarification
Let me see if I can remember.
SIngle conversion RX will convery from 7mhz to the signal that is used to control the servos. Dual conversion will convery from 72mhz to 10.8mhz. Then from 10.8mhz to your servo control. This second step is used to give cleaner reception. |
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