Bob, This are all great questions.
1. Let's assume that it varies from a HP Signal generator to a home built device. However, If I was to build it I would expect to pay more and get better specs. I have a few HP 3325B's and a few 8660C. I would probably use those as inputs but not always. 2. Let's stick with the basics: 5-10Mhz. 3. Again, basics: 1-7V peak to Peak. 4. Ok, this is the real important question. The answer is, an amplifier of some sort. And that amp will probably feed something like a Test Instrument or some circuit I am building. What are my options? For now, I'd like to simulate some of my simple designs as well as some designs suggested here. Then, see where it goes. George On 05/22/2015 05:31 PM, Bob Camp wrote: > Hi > > What is your objective? Put another way: > > 1) How clean is your sine wave source? > 2) What frequency (or range) are you trying to convert? > 3) What level range are you trying to work with? > 4) What is it going into (how clean is the next stage)? > > If you have an optical fountain that is good to 1x10^-15 at 1 second, and > you are trying to map Pluto with a radar in your back yard, the answer will > be a bit different than if you are starting with a surplus OCXO and trying > to drive a 5334 :) > > Bob > >> On May 22, 2015, at 4:27 PM, xaos <[email protected]> wrote: >> >> After reading the posts on this subject I have a question. >> First, in my experience I used a rather simple circuit made from >> diodes used as limiters and a transistor feeding >> a logic inverter. No AGC. >> >> So here is my question. What is the proper circuit to use? >> I'd like to do a PSPICE and check things out followed by >> a prototype. >> >> I got that a comparator is out, etc. >> >> Cheers, >> George H. N2FGX >> >> On 04/26/2015 06:51 AM, Bryan _ wrote: >>> All: >>> >>> Picked up a FE 5680B from Ebay awhile back. Appears to work fine, but is >>> limited to a 1pps output. However there is a point on the PCB that's >>> documented that has a 20Mhz output. There is actually a clean 60Mhz output >>> as well. >>> >>> http://www.ebay.com/itm/FEI-fe-5680b-rubidium-oscillator-With-1pps-20mhz-output-ONLY-10mhz-NEED-to-MOD-/291419889143?pt=LH_DefaultDomain_0&hash=item43d9fa9df7 >>> >>> I would like to tap this 20mhz output and feed it to a divider/buffer >>> circuit for a 10Mhz output at 50ohm. Can anyone recommend a good schematic >>> for such a purpose. I was looking at the project from David partridges web >>> site http://www.perdrix.co.uk/FrequencyDivider/index.html >>> >>> Cheers and thanks in advance. >>> >>> -=Bryan=- >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
