Re: 10.14 mhz xmtrs

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From: Michael Stein (OSYSMAS@MVS.OAC.UCLA.EDU)
Date: Fri Jan 28 1994 - 14:57:00 EST


> Hmmm... (I zink vat ve have here iz a failure to communicates)
> There is a difference in terminology between 'synthesised' and
> 'mixed'. 'synthesised' requires the use of a PLL & VCO.

Perhaps in advertising, but not in reality (in the field).

The old CB's used a simple mixing scheme to generate their
frequencies, however this is/was a valid (incoherent) synthesis
technique and was used for many purposes other than CBs before
the current PLL & Coherent synthesis became popular (or
practical/known).

There are many frequency synthesis techniques other than the PLL
which most people have seen. Some of these techniques include
brute-force, harmonic, double-mix, triple-mix, and
double-mix-divide. These have different trade-offs than PLLs.
These usually cost more...


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