Hi Guys,
This isn't strictly radio, but I was looking at one of the relatively cheap rubidium clocks on eBay
that are supposed to maintain an ultra precise frequency reference for clocking and synchronising test equipment.
The more expensive of them has a programmable output 2-20MHz AC wave,
and I want a higher frequency wave that is also AC.
My question is about whether you can set the rubidium clock to output 10MHz,
use an external PLL to double the frequency, and output either AC or DC?
Or does the PLL output AC, and if you want DC you have to buffer it?
Also I'm guessing that doubling a frequency will have a negative effect on accuracy,
especially if accuracy is quoted as a value like + or - pulses per time period.
Cheers, Art.
This isn't strictly radio, but I was looking at one of the relatively cheap rubidium clocks on eBay
that are supposed to maintain an ultra precise frequency reference for clocking and synchronising test equipment.
The more expensive of them has a programmable output 2-20MHz AC wave,
and I want a higher frequency wave that is also AC.
My question is about whether you can set the rubidium clock to output 10MHz,
use an external PLL to double the frequency, and output either AC or DC?
Or does the PLL output AC, and if you want DC you have to buffer it?
Also I'm guessing that doubling a frequency will have a negative effect on accuracy,
especially if accuracy is quoted as a value like + or - pulses per time period.
Cheers, Art.