David Lowrance
New Member
I am trying to either build a frequency marker unit, or obtain proper test gear to produce a 333000 Hz injector wave that is accurate to 1 Hz.
I have several pieces of older test gear, F gens, frequency counter, and none of my equipment is stable enough to generate a 333000 Hz signal to 1 Hz accuracy. The digital synthesizers miss the frequency by from 35 to over 100 Hz but are very stable. The analog ones drift around over time by 100 Hz or more. Here is the rundown on my current test gear.
<**broken link removed**
My latest thought was to use a 33.3000 MHz crystal oscillator and then add some divider chips to drop by 100x in steps of 5, 5 and 4, and the output of the 333000 Hz should then become more accurate and stable. The snag is locating the crystal oscillator at 33.30000 MHz.
Anyone have test gear [F gen] that can produce a 333000 Hz wave form to 1 Hz accuracy. That is 6 digit accuracy or about 30 ppm as I count it?
I will buy a new F gen if I have a correct model number that can do this for me.
Or does anyone have a source for a crystal oscillator at 33.3000 MHz, or any other kind of oscillator that is that stable and accurate?
Thanks,
Dave L
I have several pieces of older test gear, F gens, frequency counter, and none of my equipment is stable enough to generate a 333000 Hz signal to 1 Hz accuracy. The digital synthesizers miss the frequency by from 35 to over 100 Hz but are very stable. The analog ones drift around over time by 100 Hz or more. Here is the rundown on my current test gear.
<**broken link removed**
My latest thought was to use a 33.3000 MHz crystal oscillator and then add some divider chips to drop by 100x in steps of 5, 5 and 4, and the output of the 333000 Hz should then become more accurate and stable. The snag is locating the crystal oscillator at 33.30000 MHz.
Anyone have test gear [F gen] that can produce a 333000 Hz wave form to 1 Hz accuracy. That is 6 digit accuracy or about 30 ppm as I count it?
I will buy a new F gen if I have a correct model number that can do this for me.
Or does anyone have a source for a crystal oscillator at 33.3000 MHz, or any other kind of oscillator that is that stable and accurate?
Thanks,
Dave L