[time-nuts] Lucent KS-24361 15 Mhz and 10 Mhz
paulswedb at gmail.com
Mon Dec 1 10:11:51 EST 2014
To address the one question Ref1s have no 10 Mhz. Just 15 MHz.
I have reversed out the various paths but it seems so have others. Must
have missed that thread. I do see the 5 to 10 doubler is in the q200-q203
region. I can't speak to the qualities of the signals and still have not
found the magical X+Y= 15 Mhz.
So what are folks doing that just have ref 1s?
Is this the discussion on buffering the 5 Mhz and doubling?
On Mon, Dec 1, 2014 at 7:43 AM, Bob Camp <kb8tq at n1k.org> wrote:
> Given the level of phase noise on the Ref-0 10 MHz output, I would not
> *want* to use the same pin they get that off of ….
> > On Dec 1, 2014, at 6:25 AM, Götz Romahn <goetz at g-romahn.de> wrote:
> > @ Paul
> > yes pin 1 of U206 is the input of a schmitt-trigger ( xxACT14 ) where
> the rectangular 10 MHz output on the Ref-0 Modul is generated.
> > @ David
> > 10 MHz is not available on the Ref-1 module, the one with antenna input
> (yea, but it is still at pin 1 of U206).
> > Götz
> > Am 01.12.2014 04:09, :
> >> OK so it was not as hard as I thought getting all of teh screws out. The
> >> harder part is getting the actual board to slip out of the back.
> >> After getting to the bottom I found a locked 10 Mhz signal on U206 pin 1
> >> somewhat of a sine wave but compressed top and bottom at 5 V and pin 2 a
> >> squared up version. Pin 1 goes off to several transistors. Also I have
> >> looked at the rest of u206.
> >> So good or bad a tracking 10 Mhz exists. Not so easy to get to frankly.
> >> Regards
> >> Paul
> >> WB8TSL
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