2019-06-22

Getting More Tidy?- and TV Tuner Modules.

With a house full of stuff it is not the easiest thing to keep tidy.
Here is an on-going project that started right after my move back to Denmark, and with a break because of a serious illness.

I am - slowly - beginning to know where more of my (radio) stuff is, but there is a long way yet.
It looks like I need to make some sort of inventory (what do I have, and where?).

This week I found some old TV tuner modules which may be useful for converting the IF signals from a satellite TV LNB down to a second IF, where a WBFM demodulator (or base receiver) can operate. Some of those are synthesized with the synthesizer on board, others just have VCOs which may or may not be PLL controllable (with or without modifications).

In any case, some low cost 10GHZ system looks feasible with the tuners, others may have  interest in using them, too.
The old fashioned TV tuners are getting more tricky to find.

Why not use the cheap USB TV tuner modules, like the RTL-SDR, you may ask. Well such a tuner needs a computer and SDR program, so the complexity goes up right there. A simple PLL can be programmed by a small single chip processor, like the PIC/PICAXE or the Arduino, drawing much less power. Certainly a high priority if you want to go portable.



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