n...@no6b.com wrote:
20*log(N) dB, where N is the multiplication factor. So for x 12, the phase noise would be 21.6 dB higher than that of the xtal oscillator.
That must be why the GE charts show about 22 dB of difference. Makes sense.....
For x 36 (UHF exciter), it's 31.1 dB.
Nobody cares about UHF because adequate isolation is easier to obtain due to the "usual" 5 MHz separation. Noise levels fall off the farther you get from the TX carrier and is the reason why lower Q filters can be used in building a UHF duplexer compared to one for 2 Meters.
I don't suppose G.E. ever made a PLL exciter for the MVP?
I don't think so..... Kevin
