[time-nuts] Any CW12-TIM users?
lists at rtty.us
Fri Jul 9 11:07:00 EDT 2010
The output from the CW12 is straight off of a DDS so it's pretty dirty (phase noise) compared to a TBolt. Depending on just what your repeater is looking for that may or may not be an issue. The unit should hold +/- 30 Hz at 900 MHz frequency wise.
There are multiple firmware versions of the CW12, so you may want to check if yours is up to date. The software we used with them came straight from the manufacturer via email. I don't have any current information, we've moved on to another vendor.
On Jul 9, 2010, at 9:30 AM, John Green wrote:
> I seem to remember someone saying they had actually tried one. I am looking
> to put another repeater on the air and while I have another TBOLT, I like
> the fact that the CW12-TIM takes a single supply. Of course, I'll have to
> have 5 volts to power the antenna but I can get the 3 volts for the CW12
> from that. The 10 MHz output doesn't have to be as stable as a TBOLT, it
> just needs to be GPS locked. It doesn't have to have holdover. If it loses
> GPS lock, it would be OK if it just stopped putting out 10 MHz. Also, do I
> have to get special software to talk to it? Or, hopefully, it just does a
> self survey automatically and I won't have to fool with it.
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