[time-nuts] NTS-200 Antenna Power Mod

[Bruce Lane]

Hi, Jason,

*********** REPLY SEPARATOR  ***********

On 19-May-07 at 21:51 Jason Rabel wrote:

>I would be interested in seeing your solution, and I'm sure others would
>too. I noticed a lot of the TrueTime/Symmetricom hardware uses a 12V
>antenna voltage.

	Check your E-mail for a couple of photos, and some details (don't want to send photo attachments to the list).

	Eventually, I'll have that (and many other mods and neat fixes) up on my web site.

>On a side-note, does your NTS have any nifty non-standard options? Some
>pictures of the general inside would be neat.

	No, pretty simple in there. Just one main board, a power supply, and a line filter. Keep in mind that the 200 was designed to be an "inexpensive solution" for IT folk that just wanted a simple time server.

	Now, with that said -- It IS possible to modify the thing to get disciplined 10MHz out, as well as 1PPS. You simply add the two missing PC-mount BNC jacks (the cutouts are already in the rear panel for them), and a couple of chip resistors. The bad news is that the thing's master oscillator is pretty cheesy. I wouldn't expect it to behave anywhere near as well as a dedicated OCXO in a real GPS-disciplined frequency standard.

	Keep the peace(es).


-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner & Head Hardware Heavy,
Blue Feather Technologies -- http://www.bluefeathertech.com
kyrrin (at) bluefeathertech do/t c=o=m
"If Salvador Dali had owned a computer, would it have been equipped with surreal ports?"