[time-nuts] Why a 10MHz sinewave output?
albertson.chris at gmail.com
Tue Feb 7 20:19:11 UTC 2012
Related question: Assuming I'm using 10MHz sine wave. What's the
best physical cable to use? Is there any good reason to use 50 ohm
cable? What about 75 ohm? I looked at a schematic of my counter
and it looks like the 10MHz signal hits some high impedance chip
inside. RG6 seems like the way to go. It's double shieled and
lots of cable TV parts could be used.
On Tue, Feb 7, 2012 at 11:12 AM, Hal Murray <hmurray at megapathdsl.net> wrote:
> lists at rtty.us said:
>> Thank goodness for that inertia. I can still cable up a 100Kcps sine wave
>> standard to run stuff from "long ago". When I run into a box that uses a T1
>> signal for a clock reference - not so easy in the basement.
> How much gear is there that uses T1 for a clock input?
> Is there any interest in a board/chip/whatever that converts 10 MHz to T1? A
> clean design using a decimal DDS should fit into a small FPGA, maybe a CPLD.
> These are my opinions, not necessarily my employer's. I hate spam.
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Redondo Beach, California
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