No, the fact that it didn't immediately come up doesn't matter. It did come up, and what he actually added is a key question.
Of course it matters.
We have someone who is clearly having problems conveying what he wants, and he compounds it by top-posting, so his replies are not completely connected to the bits he is replying to.
This whole thread is about clarity. Formulating exactly what it is he wants, asking the right questions. Top posting is not about clarity.
So I shouldn't respond unless I'm complaining about top posting? You might want to look at that sentence a second time.
No, there is nothing clear about the original post, or even the poster's subsequent replies.
We are still guessing at what his intentions are for this project, and until we know that, how he's going to accomplish it isn't on the menu.
And I should point out, that I have replied a number of times in this thread, and yes, they were about getting the original poster to clarify what it is he wants to do. This is not about receiving a signal, it's about what he wants to receive the signal for. One thing is clear, he's not well versed in electronics, and hence until we get the real details we can't really help him. If you actually think that you can divine what he actually needs from his posts, then you are taking his questions too literally.
And I should also point out that whether or not I don't like top posting, I actually did refrain from saying anything until you took someone to task for taking issue with it. If you can do that, I can take issue with your complaint.
Maybe you should re-read his more recent posts. He wants to transmit a
100MHz carrier, with NO modulation. He will receive it and magically clean it, square it up, and use it as a sync signal. (He wishes). He also listed the range required, but I forgot it as a giggle escaped.
problem is, at 100MHz, in most countries, that's in side the Fm broadcast band, so there usually are regulations limiting the amount of power you can use. Plus there are 100KW stations broadcasting in that range, messing up your attempts to receive a signal. You're unlikely to be able to reeive your signal, even with a good superhet, not much farther than 100 meters.
It's hard to keep the original carrier frequency-- you can't just cascade Rf amplifier stages-- somewhere around three stages it becomes very difficult to impossible to keep the amplified signal from feeding back to the input and causing oscillations. That's the beauty of the superhet-- you can amplify a bit at RF, then mix it down or up to another frequency where you can start applying gain again without fear of feedback.
I have worked with custom made 125 MHz fundamental cut crystals in TO-5 cans that were multiplied up into the microwave region for the LO in Telemetry equipment.
--
Service to my country? Been there, Done that, and I\'ve got my DD214 to
prove it.
Member of DAV #85.
Michael A. Terrell
Central Florida
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